559 filings
8-K
CLIR
ClearSign Technologies Corp
24 Apr 24
ClearSign Technologies Corporation Announces Closing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants
8:45am
8-K
CLIR
ClearSign Technologies Corp
23 Apr 24
Entry into a Material Definitive Agreement
7:00am
424B5
CLIR
ClearSign Technologies Corp
23 Apr 24
Prospectus supplement for primary offering
6:02am
8-K
CLIR
ClearSign Technologies Corp
19 Apr 24
ClearSign Technologies Corporation Announces Pricing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants
8:45am
424B5
CLIR
ClearSign Technologies Corp
19 Apr 24
Prospectus supplement for primary offering
6:02am
4/A
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10 Apr 24
ClearSign Technologies / Brent Hinds ownership change
5:00pm
4
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2 Apr 24
ClearSign Technologies / Judith S Schrecker ownership change
5:36pm
4
nrm1k
2 Apr 24
ClearSign Technologies / Robert Thurston HOFFMAN Sr ownership change
5:34pm
4
mshxot8cc9vb5060 6ts
2 Apr 24
ClearSign Technologies / Lacy Catharine de ownership change
5:32pm
S-8
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1 Apr 24
Registration of securities for employees
7:06am
FWP
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19 Mar 24
Free writing prospectus
6:04am
424B5
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18 Mar 24
Prospectus supplement for primary offering
6:05am
424B5
gxufo8tz
18 Mar 24
Prospectus supplement for primary offering
6:01am
4
j0ds7p0fz pkpp7nwe30
26 Feb 24
ClearSign Technologies / Brent Hinds ownership change
5:03pm
4/A
o35j6ka29 rfe
26 Feb 24
ClearSign Technologies / Brent Hinds ownership change
5:02pm
4/A
udatyphqi xxvb1nyi
26 Feb 24
ClearSign Technologies / Brent Hinds ownership change
5:01pm
4
g8r0588t5frmof8u4z
26 Feb 24
ClearSign Technologies / Colin James Deller ownership change
5:01pm
4/A
l3wfxo
26 Feb 24
ClearSign Technologies / Colin James Deller ownership change
5:00pm
8-K
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7 Feb 24
ClearSign Technologies Corporation Provides Preliminary 2023 Financial Results
8:45am