37 filings
S-8
ALTR
Altair Engineering Inc - Ordinary Shares
22 Feb 24
Registration of securities for employees
5:11pm
S-3ASR
ALTR
Altair Engineering Inc - Ordinary Shares
5 Aug 22
Automatic shelf registration
4:19pm
S-8
ALTR
Altair Engineering Inc - Ordinary Shares
28 Feb 22
Registration of securities for employees
8:43pm
S-8
ALTR
Altair Engineering Inc - Ordinary Shares
9 Apr 21
Registration of securities for employees
4:12pm
S-8
ALTR
Altair Engineering Inc - Ordinary Shares
9 Apr 21
Registration of securities for employees
4:08pm
S-8
7vxqpqym
2 Mar 20
Registration of securities for employees
2:22pm
424B5
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6 Jun 19
Prospectus supplement for primary offering
4:29pm
FWP
wxrvlrx qei2nj
6 Jun 19
Free writing prospectus
7:16am
424B5
tyk0uglkmwattf05u4au
4 Jun 19
Prospectus supplement for primary offering
4:39pm
S-3ASR
w14zz9jqcui cqylwi5
4 Jun 19
Automatic shelf registration
4:25pm
S-8
10lxotf qeww
1 Mar 19
Registration of securities for employees
4:19pm
SC TO-T/A
c84c4
13 Dec 18
Third party tender offer statement (amended)
7:49am
SC TO-T/A
bcekxr268ybxfg
4 Dec 18
Third party tender offer statement (amended)
4:39pm
SC TO-T/A
zbivsdtalp s4zl
29 Nov 18
Third party tender offer statement (amended)
4:12pm
SC TO-T/A
npkuo80745l
21 Nov 18
Third party tender offer statement (amended)
4:32pm
SC TO-T
7va04om9
14 Nov 18
Third party tender offer statement
6:32am
SC TO-C
71vq7xzkuharc9r2rj
9 Nov 18
Information about tender offer
4:25pm
SC TO-C
ufpeg4ahed
8 Nov 18
Information about tender offer
4:28pm
SC TO-C
r1v0kw
5 Nov 18
Information about tender offer
5:10pm
SC TO-C
43zokgpi 5pih
5 Nov 18
Information about tender offer
7:57am