66 filings
S-1
CLIR
ClearSign Technologies Corp
IPO registration
20 May 24
4:33pm
D
CLIR
ClearSign Technologies Corp
8 May 24
$14.43 mm in equity / options / securities to be acquired, sold $5.00 mm, 1 investor
4:15pm
424B5
CLIR
ClearSign Technologies Corp
23 Apr 24
Prospectus supplement for primary offering
6:02am
424B5
CLIR
ClearSign Technologies Corp
19 Apr 24
Prospectus supplement for primary offering
6:02am
S-8
CLIR
ClearSign Technologies Corp
1 Apr 24
Registration of securities for employees
7:06am
FWP
11gvtulvqu0xgqds
19 Mar 24
Free writing prospectus
6:04am
424B5
62tu8lippxo6p67o gj
18 Mar 24
Prospectus supplement for primary offering
6:05am
424B5
28mwq8861vth
18 Mar 24
Prospectus supplement for primary offering
6:01am
424B3
bhhzkxq
1 Sep 23
Prospectus supplement
4:15pm
8-A12B/A
sdh0zd9u
14 Aug 23
Registration of securities on exchange (amended)
4:05pm
8-A12B/A
cxoujw49bt 31
11 Aug 23
Registration of securities on exchange (amended)
5:15pm
S-8
2q2 moobvssxn
31 Mar 23
Registration of securities for employees
4:38pm
424B5
idpo8d7hj0
31 May 22
Prospectus supplement for primary offering
4:43pm
424B5
p9e1 jgk6pka
26 May 22
Prospectus supplement for primary offering
4:22pm
S-8
5zf 68h6exg4d820
26 Apr 22
Registration of securities for employees
5:10pm
424B5
l9ic2t4o40
14 Apr 22
Prospectus supplement for primary offering
5:16pm
S-8 POS
ax25g
2 Jul 21
Registration of securities for employees (post-effective amendment)
4:37pm