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
omygczbaowbr09l
2 Mar 20
Registration of securities for employees
2:22pm
424B5
69745mf0
6 Jun 19
Prospectus supplement for primary offering
4:29pm
FWP
0afxyajrqla16mhce
6 Jun 19
Free writing prospectus
7:16am
424B5
kw1wks 0yq5brc70
4 Jun 19
Prospectus supplement for primary offering
4:39pm
S-3ASR
66z3gcpe e1zd0s2q7dy
4 Jun 19
Automatic shelf registration
4:25pm
S-8
2rw 5ggto9ir0f7cz22t
1 Mar 19
Registration of securities for employees
4:19pm
SC TO-T/A
df5ovmfh eczp5d5o
13 Dec 18
Third party tender offer statement (amended)
7:49am
SC TO-T/A
tzfjwt5n3ebp
4 Dec 18
Third party tender offer statement (amended)
4:39pm
SC TO-T/A
12ipzzb5y6 n9
29 Nov 18
Third party tender offer statement (amended)
4:12pm
SC TO-T/A
5wmda 1ujq
21 Nov 18
Third party tender offer statement (amended)
4:32pm
SC TO-T
opac3bohmr9g4
14 Nov 18
Third party tender offer statement
6:32am
SC TO-C
jrp aubuv
9 Nov 18
Information about tender offer
4:25pm
SC TO-C
brij2hauf3
8 Nov 18
Information about tender offer
4:28pm
SC TO-C
pwhm75
5 Nov 18
Information about tender offer
5:10pm
SC TO-C
vr3qvj3n
5 Nov 18
Information about tender offer
7:57am