Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 10-Q
 _____________________________________________________
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended JuneSeptember 30, 2019
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Commission File Number 001-33462

INSULET CORPORATION
(Exact name of Registrant as specified in its charter)

 Delaware 04-3523891
 
(State or Other Jurisdiction of
Incorporation or Organization)
 
(I.R.S. Employer
Identification No.)
     
 100 Nagog ParkActonMassachusetts 01720
 (Address of Principal Executive Offices) (Zip Code)
Registrant’s Telephone Number, Including Area Code: (978600-7000

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x     No  o
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  x    No  o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer”filer,” “smaller reporting company,” and “smaller reporting“emerging growth company” in Rule 12b-2 of the Exchange Act. 
Large accelerated filer Accelerated filer

    
Non-accelerated filer Smaller reporting company
     
   Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes      No  x
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, $0.01$0.001 Par Value Per SharePODDThe NASDAQ Stock Market, LLC
As of JulyOctober 25, 2019, the registrant had 60,271,67361,821,566 shares of common stock outstanding.




TABLE OF CONTENTS
 
 
  
  
 

PART I - FINANCIAL INFORMATION
Item 1.Consolidated Financial Statements (Unaudited)
INSULET CORPORATION
CONSOLIDATED BALANCE SHEETS
(UNAUDITED)
(in thousands, except share and per share data)June 30,
2019
 December 31,
2018
September 30,
2019
 December 31,
2018
ASSETS      
Current Assets      
Cash and cash equivalents$119,867
 $113,906
$419,882
 $113,906
Short-term investments189,881
 175,040
185,622
 175,040
Accounts receivable trade, less allowance for doubtful accounts of $4,098 and $3,61066,958
 63,294
Accounts receivable trade, less allowance for doubtful accounts of $4,174 and $3,61065,052
 63,294
Unbilled receivable11,781
 13,378
12,485
 13,378
Inventories85,109
 71,414
90,207
 71,414
Prepaid expenses and other current assets25,211
 24,254
20,653
 24,254
Total current assets498,807
 461,286
793,901
 461,286
Long-term investments62,677
 140,784
31,006
 140,784
Property and equipment, net334,025
 258,379
Property, plant and equipment, net355,865
 258,379
Other intangible assets, net13,040
 10,383
12,834
 10,383
Goodwill39,739
 39,646
39,713
 39,646
Other assets29,435
 18,266
35,071
 18,266
Total assets$977,723
 $928,744
$1,268,390
 $928,744
LIABILITIES AND STOCKHOLDERS’ EQUITY      
Current Liabilities      
Accounts payable$24,752
 $25,500
$21,245
 $25,500
Accrued expenses and other current liabilities81,021
 90,157
92,037
 90,157
Total current liabilities105,773
 115,657
113,282
 115,657
Convertible debt, net607,351
 591,978
985,771
 591,978
Other liabilities14,819
 9,010
18,769
 9,010
Total liabilities727,943
 716,645
1,117,822
 716,645
Commitments and contingencies (Note 10)

 

Stockholders’ Equity      
Preferred stock, $.001 par value, 5,000,000 authorized; none issued and outstanding
 

 
Common stock, $.001 par value, 100,000,000 authorized; 60,149,926 and 59,188,758 issued and outstanding60
 59
Common stock, $.001 par value, 100,000,000 authorized; 61,786,969 and 59,188,758 issued and outstanding62
 59
Additional paid-in capital930,383
 898,559
832,140
 898,559
Accumulated deficit(676,982) (683,614)
Accumulated other comprehensive loss(2,829) (2,905)(4,652) (2,905)
Accumulated deficit(677,834) (683,614)
Total stockholders’ equity249,780
 212,099
150,568
 212,099
Total liabilities and stockholders’ equity$977,723
 $928,744
$1,268,390
 $928,744

INSULET CORPORATION
CONSOLIDATED STATEMENTS OF OPERATIONS
(UNAUDITED)
 
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended September 30, Nine Months Ended September 30,
(in thousands, except share and per share data)2019 2018 2019 20182019 2018 2019 2018
Revenue$177,136
 $124,262
 $336,691
 $247,840
$192,115
 $151,076
 $528,806
 $398,916
Cost of revenue60,718
 42,190
 113,577
 89,953
69,035
 49,107
 182,612
 139,060
Gross profit116,418
 82,072
 223,114
 157,887
123,080
 101,969
 346,194
 259,856
Operating expenses:              
Research and development32,264
 18,801
 64,218
 39,068
30,779
 22,336
 94,997
 61,404
Sales and marketing47,401
 36,575
 89,017
 69,624
47,749
 35,952
 136,766
 105,576
General and administrative29,150
 22,371
 55,011
 44,870
27,548
 36,816
 82,559
 81,686
Total operating expenses108,815
 77,747
 208,246
 153,562
106,076
 95,104
 314,322
 248,666
Operating income7,603
 4,325
 14,868
 4,325
17,004
 6,865
 31,872
 11,190
Interest expense, net of portion capitalized(7,642) (7,290) (14,257) (15,208)(9,370) (6,846) (23,627) (22,044)
Other income, net1,923
 1,686
 5,977
 3,368
Loss on extinguishment of debt(6,451) 
 (6,451) (10)
Other (expense) income, net(53) 1,834
 5,924
 5,202
Income (loss) before income taxes1,884
 (1,279) 6,588
 (7,515)1,130
 1,853
 7,718
 (5,662)
Income tax expense482
 412
 808
 745
(278) (194) (1,086) (939)
Net income (loss)$1,402
 $(1,691) $5,780
 $(8,260)$852
 $1,659
 $6,632
 $(6,601)
Net income (loss) per share:              
Basic$0.02
 $(0.03) $0.10
 $(0.14)$0.01
 $0.03
 $0.11
 $(0.11)
Diluted$0.02
 $(0.03) $0.09
 $(0.14)$0.01
 $0.03
 $0.11
 $(0.11)
Weighted-average number of shares used in calculating net income (loss) per share:              
Basic59,844,991
 58,833,498
 59,601,365
 58,659,111
60,743,211
 59,016,863
 59,986,163
 58,779,672
Diluted61,486,325
 58,833,498
 61,332,451
 58,659,111
62,335,679
 61,146,466
 61,728,018
 58,779,672

INSULET CORPORATION
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(UNAUDITED)

Three Months Ended June 30, Six Months Ended June 30,Three Months Ended September 30, Nine Months Ended September 30,
(in thousands)2019 2018 2019 20182019 2018 2019 2018
Net income (loss)$1,402
 $(1,691) $5,780
 $(8,260)$852
 $1,659
 $6,632
 $(6,601)
Other comprehensive income (loss), net of tax       
Other comprehensive loss, net of tax       
Foreign currency translation adjustment, net of tax(359) (741) (1,174) (1,059)(1,858) 4
 (3,032) (1,055)
Unrealized gain (loss) on available-for-sale debt securities, net of tax615
 (109) 1,250
 (834)35
 (70) 1,285
 (904)
Total other comprehensive income (loss), net of tax256
 (850) 76
 (1,893)
Total comprehensive income (loss)$1,658
 $(2,541) $5,856
 $(10,153)
Total other comprehensive loss, net of tax(1,823) (66) (1,747) (1,959)
Total comprehensive (loss) income$(971) $1,593
 $4,885
 $(8,560)

INSULET CORPORATION
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(UNAUDITED)


Consolidated Statement of Stockholders' Equity for the three months ended JuneSeptember 30, 2019:
Common Stock 
Additional
Paid-in
Capital
 
Accumulated
Deficit
 Accumulated Other Comprehensive Loss 
Total
Stockholders’
Equity
Common Stock 
Additional
Paid-in
Capital
 
Accumulated
Deficit
 Accumulated Other Comprehensive Loss 
Total
Stockholders’
Equity
(in thousands, except share data)Shares Amount Shares Amount 
Balance at March 31, 201959,638,439
 $60
 $905,891
 $(679,236) $(3,085) $223,630
Balance at June 30, 201960,149,926
 $60
 $930,383
 $(677,834) $(2,829) $249,780
Exercise of options to purchase common stock447,214
 
 14,599
     14,599
471,356
 1
 17,256
 
 
 17,257
Issuance for employee stock purchase plan27,613
 
 2,030
     2,030
Stock-based compensation expense    8,294
     8,294

 
 6,626
 
 
 6,626
Restricted stock units vested, net of shares withheld for taxes36,660
 
 (431)     (431)8,195
 
 (291) 
 
 (291)
Conversion feature of 0.375% Notes, net of issuance costs
 
 207,768
 
 
 207,768
Extinguishment of conversion feature on 1.25% Notes, net of issuance costs
 
 (438,642) 
 
 (438,642)
Issuance of shares for debt repayment1,157,492
 1
 194,400
 
 
 194,401
Purchase of capped call options
 
 (85,360) 
 
 (85,360)
Net income      1,402
   1,402

 
 
 852
 
 852
Other comprehensive income        256
 256
Balance at June 30, 201960,149,926
 $60
 $930,383
 $(677,834) $(2,829) $249,780
Other comprehensive loss
 
 
 
 (1,823) (1,823)
Balance at September 30, 201961,786,969
 $62
 $832,140
 $(676,982) $(4,652) $150,568


Consolidated Statement of Stockholders' Equity for the three months ended JuneSeptember 30, 2018:
 Common Stock 
Additional
Paid-in
Capital
 
Accumulated
Deficit
 Accumulated Other Comprehensive Loss 
Total
Stockholders’
Equity
(in thousands, except share data)Shares Amount  
Balance at March 31, 201858,723,242
 $59
 $865,520
 $(693,475) $(1,536) $170,568
Exercise of options to purchase common stock194,327
 
 6,780
     6,780
Issuance for employee stock purchase plan24,643
 
 1,481
     1,481
Stock-based compensation expense    6,936
     6,936
Restricted stock units vested, net of shares withheld for taxes33,183
 
 (876)     (876)
Debt retirement    (3,200)     (3,200)
Net loss      (1,691)   (1,691)
Other comprehensive loss        (850) (850)
Balance at June 30, 201858,975,395
 $59
 $876,641
 $(695,166) $(2,386) $179,148



 Common Stock 
Additional
Paid-in
Capital
 
Accumulated
Deficit
 Accumulated Other Comprehensive Loss 
Total
Stockholders’
Equity
(in thousands, except share data)Shares Amount  
Balance at June 30, 201858,975,395
 $59
 $876,641
 $(695,166) $(2,386) $179,148
Exercise of options to purchase common stock66,785
 
 2,264
 
 
 2,264
Stock-based compensation expense
 
 16,088
 
 
 16,088
Restricted stock units vested, net of shares withheld for taxes26,406
 ���
 (1,159) 
 
 (1,159)
Extinguishment of conversion feature on 1.25% Notes, net of issuance costs
 
 (5) 
 
 (5)
Net income
 
 
 1,659
 
 1,659
Other comprehensive loss
 
 
 
 (66) (66)
Balance at September 30, 201859,068,586
 $59
 $893,829
 $(693,507) $(2,452) $197,929










The accompanying condensed notes are an integral part of these consolidated financial statements.
6


Table of Contents

Consolidated Statement of Stockholders' Equity for the six months ended June 30, 2019:
 Common Stock Additional
Paid-in
Capital
 Accumulated
Deficit
 Accumulated Other Comprehensive Loss Total
Stockholders’
Equity
(in thousands, except share data)Shares Amount  
Balance at December 31, 201859,188,758
 $59
 $898,559
 $(683,614) $(2,905) $212,099
Exercise of options to purchase common stock716,687
 1
 23,659
     23,660
Issuance for employee stock purchase plan27,613
 
 2,030
     2,030
Stock-based compensation expense    14,078
     14,078
Restricted stock units vested, net of shares withheld for taxes216,868
 
 (7,943)     (7,943)
Net income      5,780
   5,780
Other comprehensive income        76
 76
Balance at June 30, 201960,149,926
 $60
 $930,383
 $(677,834) $(2,829) $249,780


Consolidated Statement of Stockholders' Equity for the sixnine months ended JuneSeptember 30, 2019:
 Common Stock Additional
Paid-in
Capital
 Accumulated
Deficit
 Accumulated Other Comprehensive Loss Total
Stockholders’
Equity
(in thousands, except share data)Shares Amount  
Balance at December 31, 201859,188,758
 $59
 $898,559
 $(683,614) $(2,905) $212,099
Exercise of options to purchase common stock1,188,043
 2
 40,915
 
 
 40,917
Issuance of shares for employee stock purchase plan27,613
 
 2,030
 
 
 2,030
Stock-based compensation expense
 
 20,704
 
 
 20,704
Restricted stock units vested, net of shares withheld for taxes225,063
 
 (8,234) 
 
 (8,234)
Conversion feature of 0.375% Notes, net of issuance costs
 
 207,768
 
 
 207,768
Extinguishment of conversion feature on 1.25% Notes, net of issuance costs
 
 (438,642) 
 
 (438,642)
Issuance of shares for debt repayment1,157,492
 1
 194,400
 
 
 194,401
Purchase of capped call options
 
 (85,360) 
 
 (85,360)
Net income
 
 
 6,632
   6,632
Other comprehensive loss
 
 
 
 (1,747) (1,747)
Balance at September 30, 201961,786,969
 $62
 $832,140
 $(676,982) $(4,652) $150,568

Consolidated Statement of Stockholders' Equity for the nine months ended September 30, 2018:
Common Stock Additional
Paid-in
Capital
 Accumulated
Deficit
 Accumulated Other Comprehensive Loss Total
Stockholders’
Equity
Common Stock Additional
Paid-in
Capital
 Accumulated
Deficit
 Accumulated Other Comprehensive Loss Total
Stockholders’
Equity
(in thousands, except share data)Shares Amount Shares Amount 
Balance at December 31, 201758,319,348
 $58
 $866,206
 $(707,255) $(493) $158,516
58,319,348
 $58
 $866,206
 $(707,255) $(493) $158,516
Exercise of options to purchase common stock308,369
 
 9,741
     9,741
375,154
 
 12,000
 
 
 12,000
Issuance for employee stock purchase plan24,643
 
 1,481
     1,481
Issuance of shares for employee stock purchase plan24,643
 
 1,481
 
 
 1,481
Stock-based compensation expense    15,117
     15,117

 
 31,205
 
 
 31,205
Restricted stock units vested, net of shares withheld for taxes323,035
 1
 (12,692)     (12,691)349,441
 1
 (13,846) 
 
 (13,845)
Debt retirement    (3,212)     (3,212)
 
 (3,217) 
 
 (3,217)
Adoption of ASC 606      20,349
   20,349

 
 
 20,349
 
 20,349
Net loss      (8,260)   (8,260)
 
 
 (6,601) 
 (6,601)
Other comprehensive loss        (1,893) (1,893)
 
 
 
 (1,959) (1,959)
Balance at June 30, 201858,975,395
 $59
 $876,641
 $(695,166) $(2,386) $179,148
Balance at September 30, 201859,068,586
 $59
 $893,829
 $(693,507) $(2,452) $197,929


The accompanying condensed notes are an integral part of these consolidated financial statements.
7


Table of Contents

INSULET CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS
(UNAUDITED)
Six Months Ended June 30,Nine Months Ended September 30,
(in thousands)2019 20182019 2018
Cash flows from operating activities      
Net income (loss)$5,780
 $(8,260)$6,632
 $(6,601)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities   
Adjustments to reconcile net income (loss) to net cash provided by operating activities:   
Depreciation and amortization11,026
 7,131
18,784
 11,254
Non-cash interest expense15,372
 14,427
24,274
 21,790
Stock-based compensation expense14,078
 15,117
20,704
 31,205
Loss on extinguishment of long-term debt6,451
 10
Provision for bad debts1,969
 1,586
2,644
 2,588
Other(589) (130)1,850
 (245)
Changes in operating assets and liabilities:      
Accounts receivable and unbilled receivable(5,406) (7,217)(5,957) (24,581)
Inventories(14,005) (7,959)(20,046) (25,279)
Prepaid expenses and other assets(3,076) (4,823)(4,883) (5,258)
Accounts payable, accrued expenses and other current liabilities(3,749) (17,873)(2,550) 2,938
Deferred revenue190
 (2,626)847
 (2,761)
Other liabilities(1,313) 232
2,717
 400
Net cash provided by (used in) operating activities20,277
 (10,395)
Net cash provided by operating activities51,467
 5,460
Cash flows from investing activities      
Purchases of property, equipment(91,949) (87,730)
Capital expenditures(114,585) (124,855)
Acquisition of intangible assets(4,965) (2,207)(6,390) (2,704)
Purchases of investments(39,065) (117,940)(63,904) (145,575)
Receipts from the maturity or sale of investments104,186
 90,774
165,275
 129,415
Net cash used in investing activities(31,793) (117,103)(19,604) (143,719)
Cash flows from financing activities      
Proceeds from issuance of convertible notes, net of issuance costs780,202
 
Repayment of convertible debt
 (6,687)(453,608) (6,699)
Purchase of capped call options(85,360) 
Proceeds from exercise of stock options and issuance of common stock under employee stock purchase plan25,690
 11,206
42,945
 13,464
Payments for taxes related to net share settlement of equity awards(7,943) (12,691)(8,234) (13,846)
Net cash provided by (used in) financing activities17,747
 (8,172)275,945
 (7,081)
Effect of exchange rate changes on cash(270) (661)(1,832) (674)
Net increase (decrease) in cash, cash equivalents and restricted cash5,961
 (136,331)305,976
 (146,014)
Cash, cash equivalents and restricted cash at beginning of period113,906
 272,577
113,906
 272,577
Cash, cash equivalents and restricted cash at end of period$119,867
 $136,246
$419,882
 $126,563
Non-cash investing and financing activities:   
Supplemental cash flow information:   
Purchases of property and equipment included in accounts payable and accrued expenses$3,051
 $12,300
$10,616
 $10,711
Additions to ROU assets resulting from new operating lease liabilities$5,117
 $



INSULET CORPORATION
CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(UNAUDITED)
Note 1. Nature of the Business
Insulet Corporation (“Insulet”) is primarily engaged in the development, manufacturing and sale of its proprietary Omnipod® System, an innovative, discreet and easy-to-use continuous insulin delivery system for people with insulin-dependent diabetes. The Omnipod System consists of two product lines: the Omnipod Insulin Management System (“Omnipod”), which Insulet has been selling since 2005, and its next generation Omnipod DASHTM Insulin Management System (“Omnipod DASH” or “DASH”). Insulet began a full market release of Omnipod DASH in the United States at the end of the first quarter of 2019. Collectively, these products are referred to as the “Omnipod System”.
In addition to using the Omnipod System for insulin delivery, Insulet also partners with global pharmaceutical and biotechnology companies to tailor the Omnipod System technology platform for the delivery of their drugs across other therapeutic areas. The majority of Insulet's drug delivery revenue currently consists of sales to Amgen supplying the Neulasta® Onpro® kit, an innovative delivery system for Amgen’s white blood cell booster to help reduce the risk of infection during intense chemotherapy.

Note 2. Basis of Presentation
Basis of Presentation
The accompanying financial statements reflect the consolidated operations of Insulet and its subsidiaries (the “Company”). The unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions in the application of certain of its significant accounting policies that may materially affect the reported amounts of assets, liabilities, equity, revenue and expenses. Actual results may differ from those estimates. In management's opinion, the unaudited consolidated financial statements contain all normal recurring adjustments necessary for a fair statement of the interim results reported. Operating results for the three and sixnine months ended JuneSeptember 30, 2019 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2019, or for any other subsequent interim period.
The year-end balance sheet data was derived from audited consolidated financial statements. These consolidated financial statements do not include all of the annual disclosures required by U.S. GAAP; accordingly, they should be read in conjunction with the Company’s audited consolidated financial statements contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018.

Shipping and Handling Costs
Shipping and handling costs are included in general and administrative expenses and were $2.3$2.2 million and $1.4 millionfor both the three months ended JuneSeptember 30, 2019 and 2018, respectively, and were $4.9$7.1 million and $2.5$4.6 million for the sixnine months ended JuneSeptember 30, 2019 and 2018, respectively.

Reclassification of Prior Period Amounts
Certain reclassifications have been made to prior period amounts to conform to the current period financial statement presentation. Software license costs have been reallocated from general and administrative expenses to research and development and sales and marketing expenses based on license usage. These reclassifications have no effect on previously reported net income.

Recently Adopted Accounting Standards
Effective January 1, 2019, the Company adopted Accounting Standards Update (“ASU”) No. 2016-02, Leases (Topic 842) (“ASU 2016-02”). ASU 2016-02 and its related amendments (collectively referred to as ASC 842), which amends the guidance in former ASC Topic 840, Leases. The new standard requires lessees to recognize right-of-use (“ROU”) assets and lease liabilities on the balance sheet for those leases classified as operating leases. The Company adopted ASC 842 on January 1, 2019 using the modified retrospective method, whereby the new guidance is applied prospectively as of the date of adoption and prior periods are not restated. The Company elected the practical expedients that permit the Company to not reassess (1) whether any expired or existing contracts are or contain leases, (2) the lease classification for any expired or existing leases, and (3) any initial direct costs for any existing leases as of the effective date. The Company also excludes leases with an expected term of less than one year from the application of ASC 842. AdoptionUpon the adoption, the Company recorded ROU assets of $8.8 million and operating lease liabilities of $10.8 million on its consolidated balance sheet. The difference between the approximate value of the ROU assets and the approximate value of the lease standard hadobligations was primarily attributable to a material impact on the Company's consolidated balance sheet, which is disclosed informer cease-use liability. See Note 11. for additional information regarding leases.
Effective January 1, 2019, the Company early adopted ASU 2018-15, Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (“ASU 2018-15”). ASU 2018-15 requires certain costs to implement a cloud computing arrangement that is a service contract to be capitalized consistent with the rules applicable to internal-use software

capitalization projects. The Company adopted this new guidance effective January 1, 2019, prospectively. The Company defers

eligible costs related to the implementation of cloud computing arrangements within other current and non-current assets and amortizes such costs over the expected term of the hosting arrangement to the same income statement line as the associated cloud operating expenses. Adoption of this standard resulted in the Company capitalizing $0.7$0.4 million and $2.0$2.4 million of cloud computing implementation costs for the three and sixnine months ended JuneSeptember 30, 2019, respectively.

Note 3. Revenue and Contract Acquisition Costs
The following table summarizes revenue from contracts with customers for the three and sixnine months ended JuneSeptember 30, 2019 and 2018:
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended September 30, Nine Months Ended September 30,
(in thousands)2019 2018 2019 20182019 2018 2019 2018
U.S. Omnipod$98,074
 $78,047
 $184,177
 $148,319
$109,464
 $81,970
 $293,641
 $230,289
International Omnipod62,736
 28,509
 119,624
 66,913
67,753
 50,214
 187,377
 117,127
Total Diabetes Revenue160,810
 106,556
 303,801
 215,232
177,217
 132,184
 481,018
 347,416
Drug Delivery16,326
 17,706
 32,890
 32,608
14,898
 18,892
 47,788
 51,500
Total$177,136
 $124,262
 $336,691
 $247,840
$192,115
 $151,076
 $528,806
 $398,916

Revenue for customers comprising more than 10% of total revenue were as follows:
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended September 30, Nine Months Ended September 30,


2019 2018 2019 20182019 2018 2019 2018
Amgen, Inc.* 14% 10% 13%* 12% * 13%
Ypsomed* * * 17%* * * 11%
Cardinal Health Inc. and affiliates12% 13% 11% 12%11% 12% 11% 12%
* Represents less than 10% of consolidated revenue.
Deferred revenue related to unsatisfied performance obligations was included in the following consolidated balance sheet accounts in the amounts shown:
 As of As of
(in thousands) June 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018
Accrued expenses and other current liabilities $1,374
 $1,184
 $2,007
 $1,184
Other liabilities 986
 931
 1,011
 931
Total deferred revenue $2,360
 $2,115
 $3,018
 $2,115
        

Revenue recognized during the three and sixnine months ended JuneSeptember 30, 2019 included in deferred revenue at the beginning of 2019 was $0.2$0.1 million and $1.1 million, respectively. Revenue recognized during the three and sixnine months ended JuneSeptember 30, 2018 included in deferred revenue at the beginning of 2018 was $1.1$0.6 million and $2.4$2.5 million, respectively. NoNaN revenue was recognized during the three and sixnine months ended JuneSeptember 30, 2019 and 2018 from performance obligations satisfied or partially satisfied in previous periods.
Contract acquisition costs, representing capitalized commissionscommission costs related to new patient starts,customers, net of amortization, were included in the following consolidated balance sheet accounts in the amounts shown:
 As of As of
(in thousands) June 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018
Prepaid expenses and other current assets $8,452
 $7,277
 $9,006
 $7,277
Other assets 18,183
 15,988
 19,282
 15,988
Total capitalized contract acquisition costs, net $26,635
 $23,265
 $28,288
 $23,265
        


The Company recognized $2.1$2.3 million and $4.1$6.4 million of amortization of capitalized contract acquisition costs during the three and sixnine months ended JuneSeptember 30, 2019, respectively. The Company recognized $1.8 million and $5.0 million of amortization of capitalized contract acquisition costs during the three and nine months ended September 30, 2018, respectively.


Note 4. Investments
Cash and Cash Equivalents
Included in the Company's cash and cash equivalents are restricted cash amounts set aside for collateral on outstanding letters of credit totaling $2.7 million at both JuneSeptember 30, 2019 and December 31, 2018.

Marketable Securities
The Company's short-term and long-term investments in debt securities had maturity dates that range from 84 days to 23 months as of JuneSeptember 30, 2019. The Company’s investment portfolio included approximately 4014 available-for-sale debt securities that had insignificant unrealized loss positions as of JuneSeptember 30, 2019 and December 31, 2018. The Company's investments had insignificant realized gains or losses for both the three and sixnine months ended JuneSeptember 30, 2019 and June 30, 2018.
The Company uses the following fair value hierarchy to measure the fair value of assets and liabilities:
Level 1 — quoted prices in active markets for identical assets or liabilities;
Level 2 — observable inputs other than quoted prices in active markets for identical assets or liabilities;
Level 3 — unobservable inputs for which there is little or no market data, which require the Company to develop its own assumptions. The Company had no Level 3 assets or liabilities as of JuneSeptember 30, 2019 and December 31, 2018.
The following table provides amortized cost, gross unrealized gains and losses, fair value and the level in the fair value hierarchy for the Company's investments as of JuneSeptember 30, 2019 and December 31, 2018:2018:
(in thousands)Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Level 1 Level 2Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Level 1 Level 2
June 30, 2019           
September 30, 2019           
Money market mutual funds$50,427
 $
 $
 $50,427
 $45,439
 $4,988
$83,342
 $
 $
 $83,342
 $83,342
 $
U.S. government and agency bonds4,995
 
 
 4,995
 4,995
 
Total cash equivalents$50,427
 $
 $
 $50,427
 $45,439
 $4,988
$88,337
 $
 $
 $88,337
 $88,337
 $
                      
U.S. government and agency bonds$103,776
 $69
 $(67) $103,778
 $69,779
 $33,999
$106,135
 $204
 $(7) $106,332
 $94,764
 $11,568
Corporate bonds76,256
 162
 (13) 76,405
 
 76,405
71,329
 156
 (1) 71,484
 
 71,484
Certificates of deposit9,688
 13
 (3) 9,698
 
 9,698
7,779
 27
 
 7,806
 
 7,806
Total short-term investments$189,720
 $244
 $(83) $189,881
 $69,779
 $120,102
$185,243
 $387
 $(8) $185,622
 $94,764
 $90,858
                      
U.S. government and agency bonds$57,647
 $294
 $(3) $57,938
 $29,915
 $28,023
$27,873
 $125
 $(20) $27,978
 $9,979
 $17,999
Corporate bonds814
 44
 (40) 818
 
 818
814
 44
 (38) 820
 
 820
Certificates of deposit3,904
 17
 
 3,921
 
 3,921
2,190
 18
 
 2,208
 
 2,208
Total long-term investments$62,365
 $355
 $(43) $62,677
 $29,915
 $32,762
$30,877
 $187
 $(58) $31,006
 $9,979
 $21,027
                      
December 31, 2018                      
Money market mutual funds$47,199
 $
 $
 $47,199
 $47,199
 $
$47,199
 $
 $
 $47,199
 $47,199
 $
Total cash equivalents$47,199
 $
 $
 $47,199
 $47,199
 $
$47,199
 $
 $
 $47,199
 $47,199
 $
                      
U.S. government and agency bonds$112,995
 $
 $(486) $112,509
 $69,605
 $42,904
$112,995
 $
 $(486) $112,509
 $69,605
 $42,904
Corporate bonds56,235
 
 (210) 56,025
 
 56,025
56,235
 
 (210) 56,025
 
 56,025
Certificates of deposit6,506
 
 
 6,506
 
 6,506
6,506
 
 
 6,506
 
 6,506
Total short-term investments$175,736
 $
 $(696) $175,040
 $69,605
 $105,435
$175,736
 $
 $(696) $175,040
 $69,605
 $105,435
                      
U.S. government and agency bonds$90,458
 $99
 $(155) $90,402
 $64,086
 $26,316
$90,458
 $99
 $(155) $90,402
 $64,086
 $26,316
Corporate bonds46,743
 43
 (68) 46,718
 
 46,718
46,743
 43
 (68) 46,718
 
 46,718
Certificates of deposit3,664
 
 
 3,664
 
 3,664
3,664
 
 
 3,664
 
 3,664
Total long-term investments$140,865
 $142
 $(223) $140,784
 $64,086
 $76,698
$140,865
 $142
 $(223) $140,784
 $64,086
 $76,698



Note 5. Convertible Debt, Net
The Company had outstanding convertible debt and related debt issuance costs on its consolidated balance sheet as follows:
As ofAs of
(in thousands)June 30, 2019 December 31, 2018September 30, 2019 December 31, 2018
1.25% Convertible Senior Notes, due September 2021$344,992
 $344,992
$119,988
 $344,992
1.375% Convertible Senior Notes, due November 2024402,500
 402,500
402,500
 402,500
0.375% Convertible Senior Notes, due September 2026$800,000
 $
Unamortized debt discount(129,616) (143,616)(315,017) (143,616)
Debt issuance costs(10,525) (11,898)(21,700) (11,898)
Total convertible debt, net$607,351
 $591,978
$985,771
 $591,978


The carrying amount and the estimated fair value of the Company's convertible debt, which is based on the Level 2 quoted market prices as of JuneSeptember 30, 2019 and December 31, 2018 were as follows:
As ofAs of
June 30, 2019 December 31, 2018September 30, 2019 December 31, 2018
(in thousands)Carrying Value Estimated Fair Value Carrying Value Estimated Fair ValueCarrying Value Estimated Fair Value Carrying Value Estimated Fair Value
1.25% Convertible Senior Notes, due September 2021$308,574
 $693,455
 $301,006
 $483,851
$108,666
 $335,968
 $301,006
 $483,851
1.375% Convertible Senior Notes, due November 2024298,777
 512,797
 290,972
 426,026
302,796
 512,797
 290,972
 426,026
0.375% Convertible Senior Notes, due September 1, 2026574,309
 812,928
 
 
Total$607,351
 $1,206,252
 $591,978
 $909,877
$985,771
 $1,661,693
 $591,978
 $909,877


0.375% Convertible Senior Notes
In September 2019, the Company issued $800.0 million aggregate principal amount of 0.375% Convertible Senior Notes due September 2026 (the “0.375% Notes”). The interest rate on the notes is 0.375% per annum, payable semi-annually in arrears in cash in March and September of each year. The 0.375% Notes are convertible into the Company's common stock at an initial conversion rate of 4.4105 shares of common stock per $1,000 principal amount of the 0.375% Notes, which is equivalent to a conversion price of approximately $226.73 per share, subject to adjustment under certain circumstances. The 0.375% Notes will be convertible prior to the close of business on the business day immediately preceding June 1, 2026 only under certain circumstances and during certain periods, and will be convertible on or after June 1, 2026 until the close of business on the second scheduled trading day immediately preceding the maturity date (September 1, 2026).
The Company recorded a debt discount of $213.0 million related to the 0.375% Notes resulting from the allocation of a portion of the proceeds to the fair value of the conversion feature reflecting a nonconvertible debt borrowing rate of 5.29% per annum. This debt discount was recorded as additional paid-in capital and is being amortized as non-cash interest expense over the seven-year term of the 0.375% Notes. The Company also incurred debt issuance costs and other expenses related to the 0.375% Notes of approximately $19.8 million, of which $5.3 million was reclassified as a reduction to the value of the conversion feature allocated to equity. The remaining $14.5 million of debt issuance costs is presented as a reduction of debt in the consolidated balance sheet and is being amortized using the effective interest method as non-cash interest expense over the seven year term of the 0.375% Notes. The net proceeds of $780.2 million were used to fund the redemption of the Company's 1.25% Convertible Senior Notes due September 2021 and for the purchase of capped call options (“Capped Calls”), both of which are discussed below.
The 0.375% Notes contain provisions that allow for additional interest to holders of the notes upon failure to timely file documents or reports that the Company is required to file with the Securities and Exchange Commission. The additional interest is at a rate of 0.5% per annum of the principal amounts of the notes outstanding for a period of 360 days. If the Company merges or consolidates with a foreign entity, then additional taxes may be required to be paid by the Company under the terms of the 0.375% Notes. The Company determined that the higher interest payments required and tax payments required in certain circumstances are considered embedded derivatives and should be bifurcated and accounted for at fair value. The Company assesses the value of the embedded derivatives at each balance sheet date. The derivatives had nominal value at the balance sheet date.
In conjunction with the issuance of the Convertible Senior Notes, the Company paid $85.4 million to enter into Capped Calls on the Company’s common stock with certain counterparties, which was recorded as a reduction to additional paid-in capital on the consolidated balance sheet. By entering into the Capped Calls, the Company expects to reduce the potential dilution to its common stock (or, in the event the conversion is settled in cash, to provide a source of cash to settle a portion of its cash payment obligation) in the event that at the time of conversion its stock price exceeds the conversion price under the Convertible Senior Notes. The Capped

Calls have an initial strike price of $335.90 per share, which represents a premium of 100% over the last reported sale price of the Company’s common stock of $167.95 per share on the date of the transaction (September 3, 2019). The Capped Calls cover 3.5 million shares of common stock.

1.25% Convertible Senior Notes
During the three months ended September 30, 2019, the Company repurchased $225.0 million in principal of 1.25% Convertible Senior Notes due September 2021 ($202.9 million net of discount and issuance costs) for total consideration of $648.0 million. The total consideration was comprised of $453.6 million in cash and $194.4 million representing the fair value of the 1.16 million shares issued. The Company allocated $438.6 million of the settlement to the fair value of the equity component and $209.4 million to the debt component, which resulted in a $6.5 million loss on extinguishment for both the three and nine months ended September 30, 2019.
In October 2019, the Company repurchased the remaining $120.0 million in principal of 1.25% Convertible Senior Notes due September 2021 ($108.3 million net of discount and issuance costs) for total consideration of $315.0 million. The total consideration was comprised of $210.0 million in cash and $105.0 million representing the fair value of the 0.7 million shares issued. The Company allocated $203.7 million of the settlement to the fair value of the equity component and $111.4 million to the debt component, which resulted in a $3.1 million loss on extinguishment, which will be recorded during the fourth quarter of 2019.
Note 6. Net Income (Loss) Per Share
Basic net income (loss) per share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period, excluding unvested restricted common shares. Diluted net income (loss) per share is computed using the weighted average number of common shares outstanding and, when dilutive, potential common share equivalents from outstanding stock options and restricted stock units (using the treasury-stock method), and potential common shares from the Company's convertible debt (using the if-converted method).
The table below sets forth the components used in the computation of basic and diluted net income (loss) per share for the three and sixnine months ended JuneSeptember 30, 2019. and 2018. Because the Company reported a net loss for the three and sixnine months ended JuneSeptember 30, 2018, all potential dilutive common shares have been excluded from the computation of the diluted net loss per share for three and sixthe nine months ended JuneSeptember 30, 2018, as the effect would have been anti-dilutive.
June 30, 2019Three Months Ended September 30, Nine Months Ended September 30,
(in thousands, except share and per share data)Three Months Ended Six Months Ended2019 2018 2019 2018
Numerator:          
Net income$1,402
 $5,780
Net income (loss)$852
 $1,659
 $6,632
 $(6,601)
Denominator:          
Basic weighted average common shares outstanding59,844,991
 59,601,365
60,743,211
 59,016,863
 59,986,163
 58,779,672
Effect of dilutive securities          
Stock options1,479,713
 1,513,886
1,370,792
 1,719,796
 1,514,245
 
Restricted stock units161,621
 217,200
221,676
 409,807
 227,610
 
Convertible debt
 

 
 
 
Diluted shares61,486,325
 61,332,451
62,335,679
 61,146,466
 61,728,018
 58,779,672
Net income per share:   
Net income (loss) per share:��      
Basic$0.02
 $0.10
$0.01
 $0.03
 $0.11
 $(0.11)
Diluted$0.02
 $0.09
$0.01
 $0.03
 $0.11
 $(0.11)

For the three and sixnine months ended JuneSeptember 30, 2019, certain potential outstanding shares from stock options, restricted stock units and convertible debt were excluded from the computation of diluted net income per share because the effect of including these items was anti-dilutive. Additionally, certain performance-based restricted stock units were excluded from the computation of diluted net income per share because the underlying performance conditions for such restricted stock units had not yet been met.

The number of potential common share equivalents excluded from the computation of diluted net income (loss) per share for the three and sixnine months ended JuneSeptember 30, 2019 and 2018 arewere as follows:
June 30, 2019 June 30, 2018Three Months Ended September 30, Nine Months Ended September 30,
Three Months Ended Six Months Ended Three and Six Months Ended2019 2018 2019 2018
1.25% Convertible Senior Notes5,910,954
 5,910,954
 5,910,954
2,055,786
 5,910,954
 2,055,786
 5,910,954
1.375% Convertible Senior Notes4,319,429
 4,319,429
 4,319,429
4,319,429
 4,319,429
 4,319,429
 4,319,429
0.375% Convertible Senior Notes3,528,400
 
 3,528,400
 
Unvested restricted stock units426,550
 421,776
 914,710
455,876
 300,438
 455,824
 865,206
Stock options181,132
 231,289
 3,199,238
7,858
 223,183
 136,342
 3,117,326
Total10,838,065
 10,883,448
 14,344,331
10,367,349
 10,754,004
 10,495,781
 14,212,915


Note 7. Inventories
At the end of each period, inventories were comprised of the following:
As ofAs of
(in thousands)June 30, 2019 December 31, 2018September 30, 2019 December 31, 2018
Raw materials$17,960
 $10,347
$18,605
 $10,347
Work-in-process26,979
 30,222
40,962
 30,222
Finished goods40,170
 30,845
30,640
 30,845
Total inventories$85,109
 $71,414
$90,207
 $71,414


Note 8. Goodwill and Other Intangible Assets, Net
The changes in the carrying amounts of goodwill for the sixnine months ended JuneSeptember 30, 2019 were as follows:
(in thousands)(in thousands)
Goodwill at December 31, 2018$39,646
$39,646
Foreign currency translation93
67
Goodwill at June 30, 2019$39,739
Goodwill at September 30, 2019$39,713


The gross carrying amount, accumulated amortization and net book value of intangible assets at the end of each period were as follows:
As ofAs of
June 30, 2019 December 31, 2018September 30, 2019 December 31, 2018
(in thousands)Gross Carrying Amount Accumulated Amortization Net Book Value Gross Carrying Amount Accumulated Amortization Net Book ValueGross Carrying Amount Accumulated Amortization Net Book Value Gross Carrying Amount Accumulated Amortization Net Book Value
Customer and contractual relationships$9,850
 $(2,326) $7,524
 $6,109
 $(1,880) $4,229
$9,827
 $(2,543) $7,284
 $6,109
 $(1,880) $4,229
Internal-use software10,581
 (5,940) 4,641
 11,262
 (5,108) 6,154
11,103
 (6,370) 4,733
 11,262
 (5,108) 6,154
Intellectual property875
 
 875
 
 
 
840
 (23) 817
 
 
 
Total$21,306
 $(8,266) $13,040
 $17,371
 $(6,988) $10,383
$21,770
 $(8,936) $12,834
 $17,371
 $(6,988) $10,383

Amortization expense for intangible assets was $0.6$0.7 million and $0.4$0.5 million for the three months ended JuneSeptember 30, 2019 and 2018, respectively. Amortization expense for intangible assets was $1.2$1.9 million and $0.8$1.3 million for the sixnine months ended JuneSeptember 30, 2019 and 2018, respectively.

Estimated future amortization expense by year is as follows:
Years Ending December 31,(in thousands)(in thousands)
2019 (remaining)$1,405
$769
20202,547
2,641
20212,043
2,155
20221,460
1,562
20231,021
1,100
Thereafter4,564
4,607
Total$13,040
$12,834


Note 9. Accrued Expenses and Other Current Liabilities
The components of accrued expenses and other current liabilities were as follows:
As ofAs of
(in thousands)June 30, 2019 December 31, 2018September 30, 2019 December 31, 2018
Employee compensation and related costs$34,348
 $37,822
$43,024
 $37,822
Professional and consulting services12,856
 14,925
14,325
 14,925
Accrued rebates5,866
 2,796
Supplier purchases3,089
 7,742
3,123
 7,742
Value added taxes payable3,527
 8,463
Other27,201
 21,205
25,699
 26,872
Accrued expenses and other current liabilities$81,021
 $90,157
$92,037
 $90,157

Product Warranty Costs
The Company provides a four-year warranty on Personal Diabetes Managers (“PDMs”) sold in the United States and Europe and a five-year warranty on PDMs sold in Canada and may replace Pods that do not function in accordance with product specifications. The Company estimates its warranty at the time the product is shipped based on historical experience and the estimated cost to service the claims. Since the Company continues to introduce new products and versions, the anticipated performance of the product over the warranty period is also considered in estimating warranty reserves. Warranty expense is recorded in cost of goods sold in the consolidated statements of operations. Cost to service the claims reflects the current product cost. A reconciliation of the changes in the Company’s product warranty liability is as follows: 
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended September 30, Nine Months Ended September 30,
(in thousands)2019 2018 2019 20182019 2018 2019 2018
Product warranty liability at beginning of period$6,283
 $5,386
 $6,379
 $5,337
$6,639
 $5,503
 $6,379
 $5,337
Warranty expense3,147
 1,529
 5,366
 3,501
3,271
 1,763
 8,637
 5,264
Warranty claims settled(2,791) (1,412) (5,106) (3,335)(3,122) (1,548) (8,228) (4,883)
Product warranty liability at end of period$6,639
 $5,503
 $6,639
 $5,503
$6,788
 $5,718
 $6,788
 $5,718

Product warranty liability was included in the following consolidated balance sheet accounts in the amounts shown:
As ofAs of
(in thousands)June 30, 2019 December 31, 2018September 30, 2019 December 31, 2018
Accrued expenses and other current liabilities$2,906
 $2,701
$3,019
 $2,701
Other liabilities3,733
 3,678
3,769
 3,678
Total$6,639
 $6,379
$6,788
 $6,379



Note 10. Commitments and Contingencies
Legal Proceedings
Between May 5, 2015 and June 16, 2015, three3 class action lawsuits were filed by shareholders in the U.S. District Court, for the District of Massachusetts, against the Company and certain individual and former executives of the Company. TwoNaN suits subsequently were voluntarily dismissed. Arkansas Teacher Retirement System v. Insulet, et al., 1:15-cv-12345, (“ATRS”) alleged that the Company (and certain executives) committed violations of Sections 10(b) and 20(a) and Rule 10b-5 of the Securities Exchange Act of 1934 by making allegedly false and misleading statements about the Company’s business, operations, and prospects. On February 8, 2018, the parties executed a binding stipulation of settlement, under which all claims were released and a payment was made into an escrow account for the plaintiffs and the class they purport to represent. On August 6, 2018, the Court issued an order approving the settlement. The Company had previously accrued fees and expenses in connection with this matter for the amount of the final settlement liability that was not covered by insurance, the amount of which was not material to the Company's consolidated financial statements.
In addition, on April 26, 2017, a derivative action (Walker v. DeSisto, et al., 1:17-cv-10738) (“Walker”) was filed, and on October 13, 2017, a second derivative action (Carnazza v. DeSisto, et al., 1:17-cv-11977) (“Carnazza”) was filed, both on behalf of the Company, each by a shareholder in the U.S. District Court for the District of Massachusetts against the Company (as a nominal defendant) and certain individual current and former officers and directors of the Company. The allegations in the actions are substantially similar to those alleged in the securities class action. The actions seek, among other things, damages, disgorgement of certain types of compensation or profits, and attorneys’ fees and costs. On July 11, 2018, the parties executed a binding stipulation of settlement, under which all claims were released and a payment of attorneys’ fees and reimbursement of expenses will be paid to plaintiffs’ counsel, subject to the Court’s approval. On July 13, 2018, the plaintiffs filed a motion for preliminary approval of the settlement, which is pending. The Company expects that such fees and expenses payable to plaintiff's counsel will be covered by the Company's insurance.
The Company is, from time to time, involved in the normal course of business in various legal proceedings, including intellectual property, contract, employment and product liability suits. Although the Company is unable to quantify the exact financial impact of any of these matters, the Company believes that none of these currently pending matters will have an outcome material to its financial condition or business.
Fees To Former European Distributor
Following the expiration of an agreement with a former European distributor on June 30, 2018, the Company was required to pay a quarterly per-unit fee for Omnipod sales to certain customers of the former European distributor for a one-year period through June 30, 2019. The Company recognized a liability and an associated intangible asset for this fee as qualifying sales occurred. The methodology applicable for determining the total fee under under the distribution agreement is subject to an active arbitration proceeding in Switzerland. The final amount of the fee could vary significantly depending on the number of customers who count for purposes of calculating the fee under the terms of the agreement. The Company estimates that the final aggregate fee is in the range of $5 million to $55 million. As of JuneSeptember 30, 2019 the Company had recognized $7.8 million for fees related to Omnipod devices sold to qualifying customers during the period from July 1, 2018 through June 30, 2019.

Note 11. Leases
As discussed in Note 2, ASC 842 requires lessees to recognize ROU assets and lease liabilities on the balance sheet for those leases classified as operating leases. In accordance with ASC 842, the Company determines if an arrangement is a lease at inception. Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. TheAs the Company's leases do not provide an implicit rate, the Company uses itsan incremental borrowing rate based on the information available at lease commencement in determining the present value of future payments since most of its leases do not provide an implicit interest rate.lease payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. On January 1, 2019, upon the adoption of ASC 842, the Company recorded ROU assets of $8.8 million and operating lease liabilities of $10.8 million on its consolidated balance sheet. The difference between the approximate value of the ROU assets and the approximate value of the lease obligations is primarily attributable to a former cease-use liability.
The Company's lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.
The Company leases approximately 100,000 square feetAs of laboratory and office space in Billerica, Massachusetts. The lease expires in November 2022 and contains escalating payments over its life. Additionally,September 30, 2019, the Company leases approximately 29,000 square feetleased certain office spaces, laboratory space, warehouse space and automobiles, all of warehousing space in Billerica, Massachusetts under a lease expiring in September 2019. The Company also leases international and certain other U.S. facilities. Thesewhich were classified as operating leases. Certain of the Company's operating leases expire at various dates through 2026, some of which may include optionsescalating rental payments. Some leases include the option to extend the leases for up to 5 years, and some of which may include options to terminate the leases at certain times within the lease term. InAs of September 30, 2019, the normal course of business, it is expectedCompany included options to extend that these leases willare reasonably certain to be renewed.exercised in the operating lease assets and liabilities.

The Company's total operating lease cost, which is recorded in general and administrative expenses in the consolidated statements of operations, was $0.9$1.2 million and $1.8$3.0 million for the three and sixnine months ended JuneSeptember 30, 2019, respectively. For the three and nine months ended September 30, 2018, total rental expense was $0.9 million and $2.6 million, respectively. Cash paid for amounts included in the measurement of lease liabilities was $0.81.0 million and $1.6$2.6 million for three and sixnine months ended JuneSeptember 30, 2019, respectively.

The future minimum undiscounted lease payments under operating leases as of JuneSeptember 30, 2019 are as follows:
Years Ending December 31, (in thousands)  (in thousands) 
2019 (remaining) $1,659
  $984
 
2020 2,955
  3,628
 
2021 2,899
  4,118
 
2022 2,575
  3,658
 
2023 269
  1,278
 
Thereafter 561
  2,216
 
Total future minimum lease payments 10,918
  15,882
 
Less: imputed interest (1,089)  (1,991) 
Present value of future minimum lease payments $9,829
  $13,891
 
      

As of JuneSeptember 30, 2019, ROU assets and operating lease liabilities were included in the following consolidated balance sheet accounts in the amounts shown:
As of June 30, 2019 (in thousands) 
As of September 30, 2019 (in thousands) 
ROU asset:      
Other assets $8,020
  $12,190
 
      
Operating lease liabilities:      
Accrued expenses and other current liabilities $2,333
  $2,341
 
Other liabilities 7,496
  11,550
 
Total $9,829
  $13,891
 

As of JuneSeptember 30, 2019, the weighted average remaining lease term for operating leases was 3.74.1 years and the weighted-average discount rate used to determine the operating lease liability was 6.7%6.2%.

Note 12. Stock-Based Compensation
The following table reflects the Company's stock-based compensation expense related to share-based awards for the three and sixnine months ended JuneSeptember 30, 2019 and 2018:
Three Months Ended June 30, Six Months Ended June 30, Unamortized Expense Weighted Average Remaining Expense Period (Years)Three Months Ended September 30, Nine Months Ended September 30, Unamortized Expense Weighted Average Remaining Expense Period (Years)
($ in thousands)2019 2018 2019 2018 At June 30, 20192019 2018 2019 2018 At September 30, 2019
Stock options$1,583
 $2,272
 $3,223
 $4,630
 $10,906
 2.7$1,469
 $3,957
 $4,691
 $8,587
 $9,225
 2.5
Restricted stock units6,393
 4,371
 10,137
 9,899
 39,369
 2.24,714
 11,835
 14,851
 21,734
 35,926
 2.0
Employee stock purchase plan318
 294
 718
 588
 739
 0.4443
 296
 1,162
 884
 295
 0.2
Total$8,294
 $6,937
 $14,078
 $15,117
 $51,014
 $6,626
 $16,088
 $20,704
 $31,205
 $45,446
 



The following summarizes stock option activity for the sixnine months ended JuneSeptember 30, 2019:
Number of
Options
 
Weighted Average
Exercise Price
 
Aggregate
Intrinsic
Value (in thousands)
 
Weighted Average
Remaining Contractual Term (years)
Number of
Options
 
Weighted Average
Exercise Price
 
Aggregate
Intrinsic
Value (in thousands)
 
Weighted Average
Remaining Contractual Term (Years)
Outstanding at December 31, 20183,077,624
 $39.16
   3,077,624
 $39.16
   
Granted125,640
 93.16
   125,640
 93.16
   
Exercised(721,041) 33.42
 $49,242
 (1,192,397) 34.68
 $99,206
 
Forfeited / Expired(111,604) 48.06
   (124,198) 50.58
   
Outstanding at June 30, 20192,370,619
 $43.35
 $180,231
 5.3
Vested, June 30, 20191,839,054
 $37.50
 $150,573
 4.5
Vested or expected to vest, June 30, 2019 (1)
2,309,525
 
 $177,471
 
Outstanding at September 30, 20191,886,669
 $44.84
 $226,571
 5.6
Vested, September 30, 20191,447,398
 $38.25
 $183,351
 4.8
Vested or expected to vest, September 30, 2019 (1)
1,835,967
 
 $222,101
 
(1)
(1)Represents total outstanding stock options as of September 30, 2019, adjusted for estimated forfeitures.
Represents total outstanding stock options as of June 30, 2019, adjusted for estimated forfeitures.
The following table summarizes activity for the Company’s restricted stock units during the sixnine months ended JuneSeptember 30, 2019:
Number of
Shares
 
Weighted
Average
Fair Value
Number of
Shares
 
Weighted Average
Fair Value
Outstanding at December 31, 2018752,207
 $55.02
752,207
 $55.02
Granted311,950
 93.79
317,212
 94.68
Vested(307,217) 45.36
(317,481) 45.29
Forfeited(51,645) 63.77
(69,013) 67.34
Outstanding at June 30, 2019705,295
 $75.73
Outstanding at September 30, 2019682,925
 $76.72


Note 13. Interest Expense
Interest expense, net of portion capitalized was as follows: 
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended September 30, Nine Months Ended September 30,
(in thousands)2019 2018 2019 20182019 2018 2019 2018
Contractual coupon interest$2,462
 $2,462
 $4,924
 $4,942
$2,553
 $2,440
 $7,477
 $7,382
Accretion of debt discount7,057
 6,616
 14,000
 13,138
8,202
 6,712
 22,202
 19,840
Amortization of debt issuance costs692
 648
 1,372
 1,289
700
 661
 2,072
 1,950
Capitalized interest(2,569) (2,436) (6,039) (4,161)(2,085) (2,967) (8,124) (7,128)
Interest expense, net of portion capitalized$7,642
 $7,290
 $14,257
 $15,208
$9,370
 $6,846
 $23,627
 $22,044

Interest expense related to convertible debt for the three and sixnine months ended JuneSeptember 30, 2019 was as follows:  
Three Months Ended June 30, 2019 Six Months Ended June 30, 2019Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019
(in thousands)1.375% 1.25% 2.0% Total 1.375% 1.25% 2.0% Total1.375% 1.25% 0.375% Total 1.375% 1.25% 0.375% Total
Contractual coupon interest$1,384
 $1,078
 $
 $2,462
 $2,768
 $2,156
 $
 $4,924
$1,384
 $961
 $208
 $2,553
 $4,152
 $3,117
 $208
 $7,477
Amortization of debt discount and issuance costs3,924
 3,825
 
 7,749
 7,803
 7,569
 
 15,372
4,021
 3,006
 1,875
 8,902
 11,824
 10,575
 1,875
 24,274
Total$5,308
 $4,903
 $
 $10,211
 $10,571
 $9,725
 $
 $20,296
$5,405
 $3,967
 $2,083
 $11,455
 $15,976
 $13,692
 $2,083
 $31,751

Interest expense related to convertible debt for the three and sixnine months ended JuneSeptember 30, 2018 is as follows:  
Three Months Ended June 30, 2018 Six Months Ended June 30, 2018Three Months Ended September 30, 2018 Nine Months Ended September 30, 2018
(in thousands)1.375% 1.25% 2.0% Total 1.375% 1.25% 2.0% Total1.375% 1.25% Total 1.375% 1.25% 2.0% Total
Contractual coupon interest$1,383
 $1,078
 $1
 $2,462
 $2,767
 $2,156
 $19
 $4,942
$1,362
 $1,078
 $2,440
 $4,129
 $3,234
 $19
 $7,382
Amortization of debt discount and issuance costs3,654
 3,589
 21
 7,264
 7,265
 7,102
 60
 14,427
3,746
 3,627
 7,373
 11,001
 10,729
 60
 21,790
Total$5,037
 $4,667
 $22
 $9,726
 $10,032
 $9,258
 $79
 $19,369
$5,108
 $4,705
 $9,813
 $15,130
 $13,963
 $79
 $29,172



Note 14. Income Tax Expense
The Company's effective tax rate for the three and sixnine months ended JuneSeptember 30, 2019 was a positive rate of 25.6%24.6% and 12.3%14.1%, compared with a negative rate of 32.2%10.5% and 9.9%16.6% for the same periods of 2018. The negative effective tax rate in the 2018 periods resulted from recording state income and foreign taxes in jurisdictions with taxable income, mainly the United Kingdom and Canada. Income tax benefits have not been recorded for losses in jurisdictions where valuation allowances exist against net deferred tax assets; primarily in the United States. As of JuneSeptember 30, 2019 and December 31, 2018, the Company maintained a full valuation allowance against its U.S. net deferred tax assets based on the determination that it is not more likely than not these future benefits will be realized before expiration.

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our consolidated financial statements and the accompanying notes included in this quarterly report. The following discussion may contain forward-looking statements that reflect our plans, estimates and beliefs and involve risks, uncertainties and assumptions. Our actual results could differ materially from those discussed in these forward-looking statements. Factors that could cause or contribute to these differences include those discussed under the headings “Risk Factors” and “Forward-Looking Statements” in both our annual report on Form 10-K for the year ended December 31, 2018 and in this quarterly report.
Overview
We are primarily engaged in the development, manufacturing and sale of our proprietary Omnipod® System (“Omnipod”), an innovative, discreet and easy-to-use continuous insulin delivery system for people with insulin-dependent diabetes. There are two primary types of insulin therapy practiced today: multiple daily injection (“MDI”) therapy using syringes or insulin pens; and pump therapy using insulin pumps. Insulin pumps are used to perform continuous subcutaneous insulin infusion, or insulin pump therapy, and typically use a programmable device and an infusion set to administer insulin into the person’s body. Insulin pump therapy has been shown to provide people with insulin-dependent diabetes with numerous advantages relative to MDI therapy. We estimate that approximately one-third of the Type 1 diabetes population in the United States and less than one-fifth of the Type 1 diabetes population outside of the United States use insulin pump therapy. An even smaller portion of the Type 2 diabetes population in and outside of the United States who are insulin-dependent use insulin pump therapy. The Omnipod System features two discreet, easy-to-use devices: a small, lightweight, self-adhesive disposable tubeless Omnipod device (“Pod”) that is worn on the body for approximately three days at a time; and its wireless companion, the handheld Personal Diabetes Manager (“PDM”). The Omnipod System communicates wirelessly, provides for virtually pain-free automated cannula insertion and eliminates the need for traditional MDI therapy or the use of traditional pump and tubing. We believe that the Omnipod’s unique proprietary design and features allow people with insulin-dependent diabetes to manage their diabetes with unprecedented freedom, comfort, convenience, and ease.
We have been selling the Omnipod since 2005 and currently sell both direct to customers, through distribution partners and most recently through the pharmacy channel. The Omnipod is currently available in multiple countries in Europe, as well as in the United States, Canada and Israel. On July 1, 2018 we assumed all commercial activities (including, among other things, distribution, sales, marketing, training and support) for our Omnipod System across Europe following the expiration of an agreement with our former European distributor.
In addition to the diabetes market space, we have partnered with pharmaceutical and biotechnology companies to tailor the Omnipod System technology platform for the delivery of subcutaneous drugs across other therapeutic areas. The majority of our drug delivery revenue currently consists of sales of Pods to Amgen supplying the Neulasta® Onpro® kit, an innovative delivery system for Amgen’s white blood cell booster to help reduce the risk of infection during intense chemotherapy.
In June 2018, the FDA cleared our Omnipod DASHTM Insulin Management System (“Omnipod DASH”) for commercial distribution. The Omnipod Dash is our next-generation digital mobile Omnipod platform, featuring a secured Bluetooth enabled Pod and PDM with a touch screen color user interface supported by smartphone connectivity. We began a full market release of Omnipod DASH in the United States at the end of the first quarter of 2019.
During the second quarter of 2019, we began producing product from our new highly-automated manufacturing facility in Acton, Massachusetts. We expect that, following start up related activities, the new facility will allow us to lower our manufacturing costs, increase supply redundancy, add capacity closer to our largestNorth American customer base and support growth.
SecondThird Quarter 2019 Revenue Results:
Total revenue increased 43%27% year over year to $177.1$192.1 million and consisted of the following:
U.S. Omnipod revenue of $98.1$109.5 million, an increase of 26%34%;
International Omnipod revenue of $62.7$67.7 million, an increase of 120%35%; and
Drug Delivery revenue of $16.3$14.9 million, a decrease of 8%21%.
Our long-term financial objective is to sustain profitable growth. We expect our efforts for the remainder of 2019 to focus primarily on product and business model innovation and product development, including the continued roll out of Omnipod DASH, expanding market penetration, in our existing markets, working with Medicare, Medicaid and commercial payors and intermediaries to further expand access, and ramping up production at our new, highly automated U.S. manufacturing facility. Achieving these objectives is expected to require additional investments in certain initiatives and personnel, as well as enhancements to our supply chain operation capacity, efficiency and effectiveness.
Components of Financial Operations
Revenue.  We derive the majority of our revenue from Omnipod sales. We also sell devices based on the Omnipod System technology to global pharmaceutical and biotechnology companies for the delivery of their drugs across therapeutic areas.

Cost of revenue. Cost of revenue consists primarily of raw material, labor, warranty, inventory scrap and excess and obsolescence adjustments, overhead costs such as freight-in and depreciation, and the cost of products we acquire from third-party suppliers.
Research and development. Research and development expenses consist primarily of personnel costs, license fees and outside service expenses within our product development, regulatory and clinical functions, as well as innovations related to our global supply chain and manufacturing process. Research and development expenses also include engineering and operational costs, such as training and start up activities, associated with our newly constructed U.S. manufacturing facility up until the date we produce salable product. After this date, these operational costs are included in cost of revenue.
Sales and marketing. Sales and marketing expenses consist primarily of personnel costs within our sales, marketing, reimbursement support and customer care functions, as well as sales commissions paid to our sales representatives, and costs associated with promotional activities and participation in industry trade shows. Commission costs that are direct and incremental to obtaining a new customer are capitalized and amortized to sales and marketing expense over the expected period of benefit.
General and administrative. General and administrative expenses consist primarily of salaries and other related costs for personnel serving the executive, finance, legal, information technology support and human resource functions, as well as legal fees, accounting fees, insurance costs, bad debt expenses, shipping and handling costs, and facilities-related costs, including depreciation of office property and equipment.
Results of Operations
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended September 30, Nine Months Ended September 30,
(in thousands)2019 2018 Change $ Change % 2019 2018 Change $ Change %2019 2018 Change $ Change % 2019 2018 Change $ Change %
Revenue:                              
U.S. Omnipod$98,074
 $78,047
 $20,027
 26 % $184,177
 $148,319
 $35,858
 24 %$109,464
 $81,970
 $27,494
 34 % $293,641
 $230,289
 $63,352
 28 %
International Omnipod62,736
 28,509
 34,227
 120 % 119,624
 66,913
 52,711
 79 %67,753
 50,214
 17,539
 35 % 187,377
 117,127
 70,250
 60 %
Total Diabetes Revenue160,810
 106,556
 54,254
 51 % 303,801
 215,232
 88,569
 41 %177,217
 132,184
 45,033
 34 % 481,018
 347,416
 133,602
 38 %
Drug Delivery16,326
 17,706
 (1,380) (8)% 32,890
 32,608
 282
 1 %14,898
 18,892
 (3,994) (21)% 47,788
 51,500
 (3,712) (7)%
Total revenue177,136
 124,262
 52,874
 43 % 336,691
 247,840
 88,851
 36 %192,115
 151,076
 41,039
 27 % 528,806
 398,916
 129,890
 33 %
Cost of revenue60,718
 42,190
 18,528
 44 % 113,577
 89,953
 23,624
 26 %69,035
 49,107
 19,928
 41 % 182,612
 139,060
 43,552
 31 %
Gross profit116,418
 82,072
 34,346
 42 % 223,114
 157,887
 65,227
 41 %123,080
 101,969
 21,111
 21 % 346,194
 259,856
 86,338
 33 %
Gross margin65.7% 66.0%   

 66.3% 63.7% 

 

64.1% 67.5%   

 65.5% 65.1% 

 

Operating expenses:            

 

            

 

Research and development32,264
 18,801
 13,463
 72 % 64,218
 39,068
 25,150
 64 %30,779
 22,336
 8,443
 38 % 94,997
 61,404
 33,593
 55 %
Sales and marketing47,401
 36,575
 10,826
 30 % 89,017
 69,624
 19,393
 28 %47,749
 35,952
 11,797
 33 % 136,766
 105,576
 31,190
 30 %
General and administrative29,150
 22,371
 6,779
 30 % 55,011
 44,870
 10,141
 23 %27,548
 36,816
 (9,268) (25)% 82,559
 81,686
 873
 1 %
Total operating expenses108,815
 77,747
 31,068
 40 % 208,246
 153,562
 54,684
 36 %106,076
 95,104
 10,972
 12 % 314,322
 248,666
 65,656
 26 %
Operating income7,603
 4,325
 3,278
 76 % 14,868
 4,325
 10,543
 244 %17,004
 6,865
 10,139
 148 % 31,872
 11,190
 20,682
 185 %
Interest expense and other, net(5,719) (5,604) (115) 2 % (8,280) (11,840) 3,560
 (30)%
Interest expense, net of portion capitalized(9,370) (6,846) (2,524) 37 % (23,627) (22,044) (1,583) 7 %
Loss on extinguishment of long-term debt(6,451) 
 (6,451) NM
 (6,451) (10) (6,441) NM
Other (expense) income, net(53) 1,834
 (1,887) NM
 5,924
 5,202
 722
 14 %
Income (loss) before income taxes1,884
 (1,279) 3,163
 247 % 6,588
 (7,515) 14,103
 188 %1,130
 1,853
 (723) (39)% 7,718
 (5,662) 13,380
 236 %
Income tax expense482
 412
 70
 17 % 808
 745
 63
 8 %(278) (194) (84) 43 % (1,086) (939) (147) 16 %
Net income (loss)$1,402
 $(1,691) $3,093
 183 % $5,780
 $(8,260) $14,040
 170 %$852
 $1,659
 $(807) (49)% $6,632
 $(6,601) $13,233
 200 %
NM = Not meaningful
Revenue
Total revenue for the three months ended JuneSeptember 30, 2019 increased $52.9$41.0 million, or 43%27%, to $177.1$192.1 million, compared with the three months ended JuneSeptember 30, 2018, primarily due to continued growth in our U.S. and International andOmnipod revenue. U.S. Omnipod revenue.revenue increased $27.5 million, or 34%, to $109.5 million, primarily due to higher volumes driven by growing our customer base, the launch of Omnipod DASH and growth through the pharmacy channel. International Omnipod revenue increased $34.2$17.5 million, or 120%35%, to $62.7$67.7 million over the same period in 2018. The growth in International Omnipod revenue was primarily driven by an increase in our customer basehigher volumes as we continue to expand awareness and access to the Omnipod as well as favorable pricingOmnipod. Drug Delivery revenue decreased $4.0 million, or 21%, to $14.9 million, compared with the three months ended September 30, 2018, as a result of updated production planning with our shift to direct sales of the Omnipod in Europe following the expiration of our distribution agreement on June 30, 2018. U.S. Omnipod revenue increased $20.0 million, or 26%, to $98.1 million, primarily due to higher volumes, including the launch of Omnipod DASH. Drug Delivery revenue decreased $1.4 million, or 8%, to $16.3 million over the same period in 2018 due to lower volume during the current period.partner.
Total revenue for the sixnine months ended JuneSeptember 30, 2019 increased $88.9$129.9 million, or 36%33%, to $336.7$528.8 million, compared with the sixnine months ended JuneSeptember 30, 2018, due to strong growth in our International and U.S. Omnipod revenue. International Omnipod revenue increased $52.7$70.3 million, or 79%60%, to $119.6$187.4 million, primarily due to the continued adoption of our product in existing international markets and more favorable pricing as a result of our shift to direct sales of the Omnipod in Europe.Europe in July 2018. U.S. Omnipod revenue increased $35.9

$63.4 million, or 24%28%, to $184.2$293.6 million, primarily due to growth in our customer basehigher volumes as we continue to expand awareness of and access to the Omnipod. Drug Delivery revenue was up 1% year over year.decreased $3.7 million, or 7%, to $47.8 million, compared with the nine months ended September 30, 2018.
For 2019, we expect strong Omnipod revenue growth driven by continued market penetration, in our existing markets, partially offset by lower Drug Delivery revenue. Internationally, we expect higher revenues primarily due to increasing sales volume as a result of greater awareness and availability of the Omnipod and the full year effect of more favorable pricing for the first half of the year as a result of our mid-2018 transition to direct sales in Europe. In the U.S., we expect higher revenues primarily due to an increase in sales volume as a result of expanded payor coverage, greater awareness and availability of the Omnipod, the launch of Omnipod DASH, commercial expansion strategies and additional expansion of our U.S. sales force.the move into the pharmacy channel.

Cost of Revenue
Cost of revenue for the three months ended JuneSeptember 30, 2019 increased $18.5$19.9 million, or 44%41%, to $60.7$69.0 million, compared with the same period in 2018 and increased $23.6$43.6 million, or 26%31%, to $113.6$182.6 million for the sixnine months ended JuneSeptember 30, 2019, compared with the same prior year period. These increases in cost of revenue were driven by higher sales volumes as well as start-up costs and inefficiencies related to our new U.S. manufacturing operations, partially offset by continued improvements in manufacturing and supply chain operations.
Gross Margin
Gross margin for the three months ended JuneSeptember 30, 2019 decreased 30340 basis points to 65.7%64.1%, compared with the same period in 2018. The slight decrease in gross margin, which we expected, was primarily due to start-up costs and inefficiencies related to our new U.S. manufacturing operations.operations, partially offset by favorable Omnipod mix from the launch of DASH in the U.S. and the move into the pharmacy channel, as well as favorable customer mix internationally.
Gross margin for the sixnine months ended JuneSeptember 30, 2019 increased 26040 basis points to 66.3%65.5%, compared with the same period in 2018. The increase in gross margin was primarily due to favorable pricing following the expiration of our former distribution agreement in Europe and lower product cost as a result of continued improvements in manufacturing and supply chain operations. As expected, these increases were partially offset by start-up costs and inefficiencies related to our new U.S. manufacturing operations. We expect full year 2019 gross margin to be relatively levelconsistent with 2018, aswhich reflects the benefits of continued improvements in manufacturing and supply chain operations, and the full year effect of our mid-2018 transition to direct commercial operations in Europe and the move into the pharmacy channel. This is expected to be offset by start-up costs and inefficiencies as we ramp up our new U.S. manufacturing operations.
Research and Development
Research and development expenses for the three months ended JuneSeptember 30, 2019 increased $13.5$8.4 million, or 72%38%, to $32.3$30.8 million, compared with the same period in 2018 and increased $25.2 million or 64%, to $64 million for the six months ended June 30, 2019, compared with the same prior year period. These increases were2018. This increase was primarily due to an increase in research and development expenses related to Omnipod DASH and our Omnipod Horizon®TM automated insulin delivery system.

Research and development expenses for the nine months ended September 30, 2019 increased $33.6 million or 55%, to $95.0 million compared with the same prior year period. This increase was primarily due to an increase in research and development expenses related to Omnipod DASH and our Omnipod HorizonTM automated insulin delivery system. Research and development expenses also increased due to engineering and operational costs, such as training and start up activities, associated with our newly constructed U.S. manufacturing facility. We expect research and development spending for the full year 2019 to increase compared with 2018.
Sales and Marketing
Sales and marketing expenses for the three months ended JuneSeptember 30, 2019 increased $10.8$11.8 million, or 30%33%, to $47.4$47.7 million, compared with the same period in 20182018. This increase was primarily attributable to investments to support the expansion of our U.S. sales force.

Sales and marketing expenses for the nine months ended September 30, 2019 increased $19.4$31.2 million, or 28%30%, to $89.0$136.8 million for the six months ended June 30, 2019, compared with the same prior year period. These increases wereThis increase was primarily attributable to investments to support our mid-2018 transition to direct sales of Omnipod in Europe as well as the expansion of our U.S. sales force. We expect sales and marketing expenses for the full year 2019 to increase compared with 2018 due to additional expansion of our U.S. sales force and customer support personnel to support our continued growth and the full year effect of our transition to direct sales in Europe.
General and Administrative
General and administrative expenses for the three months ended JuneSeptember 30, 2019 increased $6.8decreased $9.3 million, or 30%25%, to $29.2$27.5 million, compared with the same period in 2018 and increased $10.1 million, or 23%, to $55.0 million for the six months ended June 30, 2019, compared with the same prior year period. These increases were2018. This decrease was primarily attributable to severance-related charges in the prior year period related to the retirement of our former CEO, including stock based compensation for certain executives as well asthe acceleration of share-based award vesting, partially offset by increased personnel-related costs related to 2018 hires to support the establishment of our direct operations in Europe.

General and administrative expenses for the nine months ended September 30, 2019 increased $0.9 million, or 1%, to $82.6 million compared with the same prior year period. This increase was primarily attributable to increased personnel-related costs related to 2018 hires to support the establishment of our direct operations in Europe and increased depreciation related to our new headquarters facility, partially offset by severance-related charges in the prior year period related to the retirement of our former CEO, including stock based compensation for the acceleration of share-based award vesting. We expect general and administrative expenses for 2019 to increase compared with 2018 as we continue to grow our business and make investments in our operating structure to support growth as well as due to the full-year effect of our transition to direct commercial operations in Europe.

Interest Expense, and Other, Net of Portion Capitalized
Interest expense, and other, net, for the three months ended JuneSeptember 30, 2019 increased $0.1$2.5 million, or 2%37%, to $5.7$9.4 million, compared with the same period in 2018 and decreased $3.62018. This increase was primarily due to non-cash interest expense associated with our new 0.375% Notes.

Interest expense, net for the nine months ended September 30, 2019 increased $1.6 million, or 30%7%, to $8.3$23.6 million for the six months ended June 30, 2019 compared with the same prior year period. The decreaseThis increase was primarily due to non-cash interest expense associated with our new 0.375% Notes. We expect interest expense for the sixth-monthfull year 2019 to increase compared with 2018 due to the interest associated with our new 0.375% Notes.
Loss on Extinguishment of Long-term Debt
During the three and nine months ended September 30, 2019 we incurred a $6.5 million loss on extinguishment of debt related to the repurchase of a portion of our 1.25% Notes.
Other (Expense) Income, Net
Other (expense) income, net for the three months ended September 30, 2019 decreased $1.9 million, to expense of $0.1 million, compared with the same period in 2018. This decrease was primarily due to unrealized foreign exchange loss.

Other (expense) income, net for the nine months ended September 30, 2019 increased $0.7 million, to $5.9 million compared with the same prior year period. This increase was primarily due to a $1.9 million increase in interest capitalized associated with the construction of our U.S. manufacturing facility and a $1.8 million insurance settlement received.received, partially offset by unrealized foreign exchange loss.


Liquidity and Capital Resources
As of JuneSeptember 30, 2019, we had $119.9$419.9 million in cash and cash equivalents and $252.6$216.6 million of investments in marketable securities. We believe that our current liquidity will be sufficient to meet our projected operating, investing and debt service requirements for at least the next twelve months.
To lower our manufacturing costs, increase supply redundancy, add capacity closer to our largestNorth American customer base and support growth, we constructed a highly-automated manufacturing facility in Acton, Massachusetts, from which we began producing product during the second quarter of 2019. This facility also serves as our global headquarters. Capital expenditures in both 2018 and 2019 were above historic levels due to funding the construction of the Acton facility and related equipment purchases. From the purchase of the facility in late 2016 through JuneSeptember 30, 2019, capital expenditures for the construction of the Acton facility and related equipment purchases have been approximately $270$293.6 million. In 2019, we expect to invest additional capital in this facility to support our growth, funded by our existing cash and investments as well as cash generated from operations. As of JuneSeptember 30, 2019, we had approximately $30$27.9 million in capital commitments.
Convertible Debt
To finance our operations and global expansion, we have periodically issued convertible senior notes, which are convertible into our common stock. In September 2019, we issued $800.0 million aggregate principal amount of 0.375% Convertible Senior Notes due September 2026. The net proceeds of $780.2 million were used to fund the redemption of our 1.25% Convertible Senior Notes due September 2021 and for the purchase of capped call options (“Capped Calls”) on our common stock. By entering into the Capped Calls, we expect to reduce the potential dilution to our common stock (or, in the event the conversion is settled in cash, to provide a source of cash to settle a portion of our cash payment obligation) in the event that at the time of conversion its stock price exceeds the conversion price under the Convertible Senior Notes. The Capped Calls have an initial strike price of $335.90 per share, and cover 3.5 million shares of common stock. Note 5 to the consolidated financial statements provides additional information regarding the debt issuance, repayment and Capped Calls.

As of JuneSeptember 30, 2019, the following notes were outstanding:
Issuance DateCouponPrincipal Outstanding (in thousands)Due DateInitial Conversion Rate per Share of Common StockConversion Price per Share of Common StockCouponPrincipal Outstanding (in thousands)Due DateInitial Conversion Rate per Share of Common StockConversion Price per Share of Common Stock
September 20161.250%$344,992
September 202117.1332$58.371.250%$119,988
September 202117.1332$58.37
November 20171.375%402,500
November 202410.7315$93.181.375%402,500
November 202410.7315$93.18
September 20190.375%800,000
September 20264.4105$226.73
Total $747,492
  $1,322,488
 
In October 2019, we repurchased the remaining $120.0 million in principal of 1.25% Convertible Senior Notes due September 2021 ($108.3 million net of discount and issuance costs) for total consideration of $315.0 million. The total consideration was comprised of

$210.0 million in cash and $105.0 million representing the fair value of the 0.7 million shares issued. We expect to allocate $203.7 million of the settlement to the fair value of the equity component and $111.4 million to the debt component, resulting in a loss on extinguishment of $3.1 million, which will be recorded during the fourth quarter of 2019.
Summary of Cash Flows
 Six Months Ended June 30, Nine Months Ended September 30,
(in thousands) 2019 2018 2019 2018
Cash provided by (used in):        
Operating activities $20,277
 $(10,395) $51,467
 $5,460
Investing activities (31,793) (117,103) (19,604) (143,719)
Financing activities 17,747
 (8,172) 275,945
 (7,081)
Effect of exchange rate changes on cash (270) (661) (1,832) (674)
Net increase (decrease) in cash and cash equivalents $5,961
 $(136,331) $305,976
 $(146,014)
Operating Activities
Net cash provided by operating activities wasof $20.351.5 million for the sixnine months ended JuneSeptember 30, 2019compared with was primarily attributable to net income, as adjusted for non-cash interest, stock-based compensation, depreciation and amortization, partially offset by a $30.3 million working capital cash usedoutflow driven by an increase in inventories. The increase in inventories was primarily due to an increase in raw materials and work-in-process related to the start up of our U.S. manufacturing plant and an increase in finished goods with the addition of inventory held in Europe.
Net cash provided in operating activities of $10.4$5.5 million for the sixnine months ended JuneSeptember 30, 2018.2018 was primarily attributable to net income, as adjusted for stock-based compensation, non-cash interest, depreciation and amortization, partially offset by a $54.5 million working capital cash outflow. The $30.7working capital outflow was driven by a $25.3 million increase in cash providedinventories to support higher demand for our product and a $24.6 million increase in accounts and unbilled receivables driven by operating activities was primarily dueour shift to direct sale of the generationOmnipod in Europe and unbilled revenue resulting from the adoption of $5.8 million of net income for the six months ended June 30, 2019, compared with an $8.3 million net loss in the comparative prior year period as well as favorable working capital.ASC 606 on January 1, 2018.
Investing Activities
During the sixnine months ended JuneSeptember 30, 2019, net cash used in investing activities was $31.8$19.6 million, compared with net cash used in investing activities of $117.1143.7 million for the sixnine months ended JuneSeptember 30, 2018.
Capital Spending—Capital expenditures were $91.9$114.6 million and $87.7$124.9 million for the sixnine months ended JuneSeptember 30, 2019 and 2018, respectively, primarily associated with the construction of our manufacturing and corporate headquarters facility in Acton, Massachusetts. For the full year 2019, we expect capital expenditures to be relatively consistent with 2018 as we continue to expand capacity in our U.S. operations to support our growth and profitability objectives. We expect to fund our capital expenditures using a combination of existing cash and investments as well as cash generated from operations.
Purchases and Sales of Investments—During the sixnine months ended JuneSeptember 30, 2019, net sales of marketable securities were $65.1$101.4 million, compared with net purchases of marketable securities of $27.2$16.2 million for the sixnine months ended JuneSeptember 30, 2018.
Financing Activities
During the sixnine months ended JuneSeptember 30, 2019, net cash provided by financing activities was $17.7$275.9 million, compared with net cash used in financing activities of $8.2$7.1 million for the sixnine months ended JuneSeptember 30, 2018.

Debt Issuance and Repayment—As previously discussed under “Convertible Debt” during the nine months ended September 30, 2019, we received net proceeds of $780.2 million from the issuance of 0.375% Notes. We used $453.6 million of the proceeds to partially fund the redemption of a portion of our outstanding 1.25% Notes and $85.4 million to purchase Capped Calls. During the nine months ended September 30, 2018, we paid $6.7 million to settle all of our outstanding 2% Notes.
Option Exercises and Issuance of Shares Under Employee Stock Purchase Plan (ESPP)—Total proceeds from option exercises and issuance of common stock under ESPP were $25.7$42.9 million and $11.2$13.5 million for the sixnine months ended JuneSeptember 30, 2019 and 2018, respectively. Payments for taxes related to net restricted share settlements were $7.9$8.2 million and $12.7$13.8 million for the sixnine months ended JuneSeptember 30, 2019 and 2018, respectively.
Debt Repayment—During the six months ended June 30, 2018, we paid $6.7 million to settle all of our outstanding 2% Notes.
Commitments and Contingencies
Following the expiration of an agreement with a former European distributor on June 30, 2018, we were required to pay a quarterly per-unit fee for Omnipod sales to certain customers of the former European distributor for a one-year period through June 30, 2019. We recognized a liability and an associated intangible asset for this fee as qualifying sales occurred. The methodology applicable for

determining the total fee under the distribution agreement is subject to an active arbitration proceeding in Switzerland. The final amount of the fee could vary significantly depending on the number of customers who count for purposes of calculating the fee under the terms of the agreement. We estimate that the final aggregate fee could be in the range of $5 million to $55 million, of which $3.8$5.1 million had been paid as of JuneSeptember 30, 2019.
We lease facilities in Massachusetts, California, and the United Kingdom. Refer to Note 11 to the consolidated financial statements included in this Form 10-Q for further information regarding our leases.
Legal Proceedings
The significant estimates and judgments related to establishing litigation reserves are discussed under “Legal Proceedings” in Note 10 to the consolidated financial statements included in this Form 10-Q.
Off-Balance Sheet Arrangements
As of JuneSeptember 30, 2019, we did not have any off-balance sheet financing arrangements.

Critical Accounting Policies and Estimates
The preparation of our consolidated financial statements in conformity with U.S. GAAP requires management to use judgment in making estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities.
We believe that our accounting policies for revenue recognition, fair value measurements, accounts receivable and allowance for doubtful accounts, inventories, product warranty costs, convertible debt, commitments and contingencies and stock-based compensation are based on, among other things, judgments and assumptions made by management that include inherent risks and uncertainties. There have been no significant changes to the above critical accounting policies or in the underlying accounting assumptions and estimates used in such policies from those disclosed in our annual consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K filed for the year ended December 31, 2018.

Accounting Standards Issued and Not Yet Adopted
In January 2017, the Financial Accounting Standards Board (“FASB”) issued ASU 2017-04, Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). ASU 2017-04 requires an entity to measure the impairment of goodwill assigned to a reporting unit as the amount by which the carrying value of the assets and liabilities of the reporting unit, including goodwill, exceeds the reporting unit's fair value. The guidance is effective for us beginning in the first quarter of 2020. Early adoption is permitted. We do not expect the adoption of this guidance to impact our consolidated financial statements.
In June 2016, the FASB issued ASU 2016-13, Credit Losses (Topic 326) (“ASU 2016-13”). ASU 2016-13 requires financial assets measured at amortized cost, such as trade receivables and contract assets, to be presented net of expected credit losses, which may be estimated based on relevant information such as historical experience, current conditions, and future expectation for each pool of similar financial assets. The new guidance also requires enhanced disclosures related to trade receivables and associated credit losses. The guidance is effective for us beginning in the first quarter of 2020. The adoption of this guidance is expected to increase the level of disclosures related to our trade receivables, but is not expected to have a material impact on our consolidated financial statements.


FORWARD-LOOKING STATEMENTS
This quarterly report on Form 10-Q contains forward-looking statements. Forward-looking statements relate to future events or our future financial performance. We generally identify forward looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “targets,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these terms or other similar words. These statements are only predictions. We have based

these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our business, results of operations and financial condition.
The outcomes of the events described in these forward-looking statements are subject to risks, uncertainties and assumptions. These risks and uncertainties include, but are not limited to:
risks associated with our dependence on our principal product platform, the Omnipod;
risks associated withOmnipod, and our ability to design, develop, manufacture and commercialize future products; 
our ability to reduce production costs and increase customer orders and manufacturing volumes;
adverse changes in general economic conditions;
impact of healthcare reform laws; 
our ability to raise additional funds in the future on acceptable terms or at all;
supply problems or price fluctuations with sole source or third-party suppliers on which we are dependent;

the potential establishment of a competitive bid program for conventional insulin pumps;
failure to retain key supplies and/or supplier pricing discounts and achieve satisfactory gross margins;
failure to retain key suppliers;
international business risks;
our inability to effectively operate and grow our business in Europe following the expiration of an agreement with our former European distributor on June 30, 2018;
regulatory, commercial and logistics risks associated with selling our products in Europe in light of the uncertainty related to the timing and terms of the separation of the United Kingdom from the European Union (Brexit); 
our inability to secure and retain adequate coverage or reimbursement from third-party payors for the Omnipod or future products and potential adverse changes in reimbursement rates or policies relating to the Omnipod or future products;
failure to retain key payor partners and their members;
adverse effects resulting from competition;
technological change and product innovation adversely affecting our business;
changes to or termination of our license to incorporate a blood glucose meter into the Omnipod or our inability to enter into new license or other agreements with respect to the Omnipod'sOmnipod’s current or future features;
challenges to the future development of our non-insulin drug delivery business;product line; 
our ability to protect our intellectual property and other proprietary rights;
conflicts with the intellectual property of third parties, including claims that our current or future products infringe or misappropriate the proprietary rights of others;
adverse regulatory or legal actions relating to the Omnipod or future products;
failure of our contract manufacturers or component suppliers to comply with the U.S Food and Drug Administration's quality system regulations;
the potential violation of the Foreign Corrupt Practices Act or any other international, federal or state laws prohibiting "kickbacks"“kickbacks” or protecting the confidentiality of patientcustomer health information or other protected personal information, or any challenge to or investigation into our practices under these laws;
product liability lawsuits that may be brought against us, including stemming from off-label use of our product;
breaches or failures of our product or information technology systems, including by cyberattack;
reduced retention rates of our customer base;
unfavorable results of clinical studies relating to the Omnipod or future products, or the products of our competitors;
future publication of articles or announcement of positions by diabetes associations or other organizations that are unfavorable to the Omnipod;
the concentration of substantially all of our manufacturing operations at a single location in China and substantially all of Insulet's inventory at a single location in Massachusetts; 
our ability to attract and retain personnel; 
our ability to manage our growth;

fluctuations in quarterly results of operations;
risks associated with potential future acquisitions or investments in new businesses; 
our ability to generate sufficient cash to service all of our indebtedness;
the expansion of our distribution network; 
our ability to successfully maintain effective internal control over financial reporting;
the volatility of the trading price of our common stock;
risks related to future sales of our common stock or the conversion of any of our convertible debt;
potential limitations on our ability to use our net operating loss carryforwards; and
anti-takeover provisions in our organizational documents.
The risk factors discussed in “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2018 and in this Quarterly Report could cause our results to differ materially from those expressed in forward-looking statements. In addition, there may be other risks and uncertainties that we are unable to predict at this time or that we currently do not expect to have a material

adverse effect on our business. Actual results could differ materially from those projected in the forward-looking statements; accordingly, you should not rely upon forward-looking statements as predictions of future events. We expressly disclaim any obligation to update these forward-looking statements other than as required by law.

Item 3. Quantitative and Qualitative Disclosures about Market Risk
Our financial instruments consist of cash, cash equivalents, short-term and long-term investments, accounts receivable, accounts payable, accrued expenses, debt and long-term obligations. The primary objectives of our investment strategy are to preserve principal, maintain proper liquidity to meet operating needs and maximize yields. To minimize our exposure to an adverse shift in interest rates, we invest mainly in short-term investments and cash equivalents. We do not believe that a 10% change in interest rates would have a material impact on the fair value of our investment portfolio or our interest income.
As of JuneSeptember 30, 2019, we had outstanding convertible debt on our consolidated balance sheet of $607.4$985.8 million, net of unamortized discount and issuance costs totaling $140.1$336.7 million. Changes in the fair value of our outstanding debt, which could be impacted by changes in interest rates, are not recorded in these consolidated financial statements as the debt is accounted for at cost less unamortized discount and issuance costs. The fair value of the debt, which is disclosed in Note 5 to the consolidated financial statements, is also impacted by changes in our stock price.
Our business is subject to risks, including, but not limited to: unique economic conditions, changes in political climate, differing tax structures, other regulations and restrictions, and foreign exchange rate volatility. A substantial portion of our operations are located in the United States; however, as our business in marketsregions outside of the United States continues to increase, we will be increasingly exposed to foreign currency exchange risk related to our foreign operations. Fluctuations in the rate of exchange between the United States dollar and foreign currencies, primarily the Euro, British Pound and Canadian Dollar, could adversely affect our financial results, including our revenues, revenue growth rates, gross margins, income and losses as well as assets and liabilities.
We will continue to monitor and evaluate our internal processes relating to foreign currency exchange, including the potential use of hedging strategies.

Item 4. Controls and Procedures
Disclosure Controls and Procedures
Our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures as of JuneSeptember 30, 2019. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on the evaluation of our disclosure controls and procedures as of JuneSeptember 30, 2019, our chief executive officer and chief financial officer concluded that, as of such date, our disclosure controls and procedures were effective at a reasonable assurance level.
Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during the three months ended JuneSeptember 30, 2019 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.



PART II - OTHER INFORMATION
Item 1. Legal Proceedings
Information regarding our material pending legal proceedings, which is incorporated herein by reference, is provided in Note 10 to the consolidated financial statements in this Form 10-Q.

Item 1A. Risk Factors
There have been no material changes to our risk factors disclosed in our Annual Report on Form 10-K for the year ended December 31, 2018. Refer to Part I, Item 1A. “Risks Factors” in our Annual Report for a discussion of risks to which our business, financial condition, results of operations and cash flows are subject.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
None.

Item 3. Defaults Upon Senior Securities
None.

Item 4. Mine Safety Disclosures
Not applicable.

Item 5. Other Information
None.

Item 6. Exhibits
Number Description
Indenture, dated as of September 6, 2019, between Insulet Corporation and Wells Fargo Bank, National Association, as Trustee (Incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed September 9, 2019).

Form of 0.375% Convertible Notes due 2026 (included in Exhibit 4.1)

Form of Capped Call Transactions Confirmation (Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed September 9, 2019).

   
 Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 by Chief Executive Officer.
   
 Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 by Chief Financial Officer.
   
 Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Chief Executive Officer and Chief Financial Officer.
   
101 The following materials from Insulet Corporation’s Quarterly Report on Form 10-Q for the quarter ended JuneSeptember 30, 2019 formatted in iXBRL (Inline eXtensible Business Reporting Language), as follows:
   
  (i) Consolidated Balance Sheets (Unaudited) as of JuneSeptember 30, 2019 and December 31, 2018
   
  (ii) Consolidated Statements of Operations (Unaudited) for the Three and SixNine Months Ended JuneSeptember 30, 2019 and 2018
   
  (iii) Consolidated Statements of Comprehensive Income (Loss) (Unaudited) for the Three and SixNine Months Ended JuneSeptember 30, 2019 and 2018
   
  (iv) Consolidated Statements of Stockholders' Equity (Unaudited) for the Three and SixNine Months Ended JuneSeptember 30, 2019 and 2018
   
  (v) Consolidated Statements of Cash Flows (Unaudited) for the SixNine Months Ended JuneSeptember 30, 2019 and 2018
   
  (vi) Condensed Notes (Unaudited) to Consolidated Financial Statements
   
* This certification shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that Section, nor shall it be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
  
INSULET CORPORATION
 
(Registrant)
   
Date:AugustNovember 5, 2019/s/ Shacey Petrovic
  Shacey Petrovic
  
Chief Executive Officer
(Principal Executive Officer)
 
   
Date:AugustNovember 5, 2019/s/ Wayde McMillan
  Wayde McMillan
  
Chief Financial Officer
(Principal Financial Officer)



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