BLDP Ballard Power Systems

Ballard Power Systems' vision is to deliver fuel cell power for a sustainable planet. Ballard zero-emission PEM fuel cells are enabling electrification of mobility, including buses, commercial trucks, trains, marine vessels, passenger cars and forklift trucks.

BLDP stock data


Investment data

Data from SEC filings
Securities sold
Number of investors


11 Mar 21
15 Oct 21
31 Dec 21
Quarter (USD)
Dec 20 Dec 19 Dec 18 Dec 17
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Dec 20 Dec 19 Dec 18 Dec 17
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Financial data from company earnings reports.

Data for the last complete 13F reporting period. To see the most recent changes to ownership, click the ownership history button above.

42.8% owned by funds/institutions
13F holders
Current Prev Q Change
Total holders 235 245 -4.1%
Opened positions 37 64 -42.2%
Closed positions 47 45 +4.4%
Increased positions 78 80 -2.5%
Reduced positions 61 65 -6.2%
13F shares
Current Prev Q Change
Total value 1.89B 8.34B -77.3%
Total shares 127.46M 136.37M -6.5%
Total puts 3.46M 2.72M +27.5%
Total calls 1.37M 1.72M -20.0%
Total put/call ratio 2.5 1.6 +59.5%
Largest owners
Shares Value Change
WEICF Weichai Power 46.13M $141.16M 0.0%
Broad-Ocean Motor 10.11M $162.27M 0.0%
Vanguard 7.5M $135.84M +5.2%
BNP Paribas Asset Management Holding 4.63M $83.98M +151.9%
Marshall Wace 3.19M $57.81M +4.3%
Mirova 3.16M $57.18M +4.4%
First Trust Advisors 2.64M $47.84M -4.6%
American Century Companies 2.34M $42.33M -6.1%
MS Morgan Stanley 2.3M $41.65M +40.9%
IVZ Invesco 2.21M $40.06M +29.9%
Largest transactions
Shares Bought/sold Change
FMR 1.8M -15.11M -89.3%
BNP Paribas Asset Management Holding 4.63M +2.79M +151.9%
Two Sigma Investments 1.1M +1.08M +5211.0%
Voloridge Investment Management 1.02M +1.02M NEW
CS Credit Suisse 1.82M -1M -35.6%
LGEN Legal & General 1.59M +789.44K +98.1%
ATAC Neuberger Berman 778.06K +778.06K NEW
Renaissance Technologies 739.21K +739.21K NEW
Connor, Clark & Lunn Investment Management 426.09K -735.79K -63.3%
Allianz Asset Management GmbH 426.38K -711.66K -62.5%

Financial report summary

Capstone Green Energy
Content analysis
8th grade Bad
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No filings


Seal for solid polymer electrolyte fuel cell
10 Aug 21
A sealed membrane electrode assembly (MEA) and a method of sealing the MEA comprises the steps of providing a frame around a periphery of the MEA to form a framed MEA; providing a through-hole in the frame; placing the framed MEA into a seal mold, the seal mold comprising a reservoir region, a seal bead region, and at least one runner region; feeding a flow-processable seal material into the reservoir region in the seal mold that is aligned with the throughhole in the frame; feeding the flow-processable seal material from the reservoir region to the seal bead region through the at least one runner region; wherein a hydraulic diameter of the at least one runner region is less than a hydraulic diameter of the reservoir region.
Membrane Electrode Assembly with Improved Cohesion
29 Apr 21
A membrane electrode assembly comprises an anode electrode comprising an anode catalyst layer; a cathode electrode comprising a cathode catalyst layer; and a polymer electrolyte membrane interposed between the anode electrode and the cathode electrode; wherein at least one of the anode and cathode catalyst layers comprises a block co-polymer comprising poly(ethylene oxide) and poly(propylene oxide).
Flow Field Plate for Electrochemical Fuel Cells
11 Mar 21
A flow field plate comprises a first flow field surface, an opposing second surface, and at least one flow channel and at least one landing formed in the first flow field surface, wherein the landing comprises a main surface, at least a first protrusion and a second protrusion extending from the main surface, each of the first and the second protrusions being placed at an edge of the main surface of the landing.
Reduced stack voltage circuitry for energy storage system diagnostics
19 Jan 21
Systems and methods to provide a low voltage interface coupleable between an energy storage device or a DC power source (e.g., fuel cell stack, battery) and one or more AC signal diagnostic systems.
Membrane Electrode Assembly with Supported Metal Oxide
14 Jan 21
A membrane electrode assembly comprises a polymer electrolyte interposed between an anode electrode and a cathode electrode, the anode electrode comprising an anode catalyst layer adjacent at least a portion of a first major surface of the polymer electrolyte, the cathode electrode comprising a cathode catalyst layer adjacent at least a portion of a second major surface of the polymer electrolyte; at least one of the anode and cathode catalyst layers comprising: a first catalyst composition comprising a noble metal; and a second composition comprising an iridium-containing metal oxide supported on a cerium oxide support.