11/13/2024
8:09 AM | Altair Engineering (Subject)
Matrix Capital Management Company, LP (Filed by)
| Form SC 13G/A | |
11/12/2024
10:16 AM | Altair Engineering (Issuer)
Kunju Ravi (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/08/2024
3:44 PM | Altair Engineering (Subject)
Scapa James Ralph (Filed by)
| Form SC 13G/A | |
11/08/2024
5:08 AM | Altair Engineering (Filer)
| Form DEFA14A | |
11/07/2024
10:25 AM | Altair Engineering (Issuer)
Marraccini Jeffrey (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/07/2024
8:43 AM | Altair Engineering (Filer)
| Form DEFA14A | |
11/06/2024
10:30 AM | Altair Engineering (Issuer)
Harris Teresa A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
|
11/05/2024
4:10 PM | Altair Engineering (Subject)
Marraccini Jeffrey (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
11/05/2024
3:07 PM | Altair Engineering (Subject)
Harris Teresa A (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
11/04/2024
4:12 PM | Altair Engineering (Filer)
| Form DEFA14A | |
10/31/2024
1:37 PM | Altair Engineering (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
10/31/2024
1:40 PM | Altair Engineering (Filer)
| Form DEFA14A | |
10/31/2024
7:00 AM | Altair Engineering (Filer)
| Form DEFA14A | |
10/30/2024
4:21 PM | Altair Engineering (Subject)
SIEMENS AG (Filed by)
| Form DFAN14A | |
10/30/2024
4:23 PM | Altair Engineering (Subject)
SIEMENS AG (Filed by)
| Form DFAN14A | |
10/30/2024
3:47 PM | Altair Engineering (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
10/30/2024
3:48 PM | Altair Engineering (Filer)
| Form DEFA14A | |
10/30/2024
3:51 PM | Altair Engineering (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
10/30/2024
3:53 PM | Altair Engineering (Filer)
| Form DEFA14A | |
10/29/2024
1:11 PM | Altair Engineering (Issuer)
James R. Scapa Declaration of Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/29/2024
1:14 PM | Altair Engineering (Issuer)
JRS Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/29/2024
1:21 PM | Altair Engineering (Issuer)
Scapa James Ralph (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/25/2024
1:03 PM | Altair Engineering (Issuer)
Christ Revocable Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/25/2024
1:02 PM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/15/2024
8:42 AM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/15/2024
8:41 AM | Altair Engineering (Issuer)
GC Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/10/2024
7:02 AM | Altair Engineering (Issuer)
Christ Revocable Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/10/2024
7:05 AM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/01/2024
5:52 PM | Altair Engineering (Issuer)
Harris Teresa A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/01/2024
9:54 AM | Altair Engineering (Issuer)
James R. Scapa Declaration of Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/01/2024
9:56 AM | Altair Engineering (Issuer)
JRS Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/01/2024
9:58 AM | Altair Engineering (Issuer)
Scapa James Ralph (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/30/2024
3:26 PM | Altair Engineering (Subject)
Scapa James Ralph (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
09/30/2024
1:47 PM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/30/2024
1:48 PM | Altair Engineering (Issuer)
Christ Revocable Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/04/2024
5:43 AM | Altair Engineering (Issuer)
Harris Teresa A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/29/2024
12:50 PM | Altair Engineering (Issuer)
James R. Scapa Declaration of Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/29/2024
12:53 PM | Altair Engineering (Issuer)
JRS Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/29/2024
12:55 PM | Altair Engineering (Issuer)
Scapa James Ralph (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/06/2024
3:19 PM | Altair Engineering (Subject)
Harris Teresa A (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
08/06/2024
1:01 PM | Altair Engineering (Issuer)
Harris Teresa A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
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08/01/2024
3:45 PM | Altair Engineering (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
08/01/2024
3:15 PM | Altair Engineering (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/30/2024
2:30 PM | Altair Engineering (Issuer)
James R. Scapa Declaration of Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/30/2024
2:32 PM | Altair Engineering (Issuer)
JRS Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/30/2024
2:34 PM | Altair Engineering (Issuer)
Scapa James Ralph (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
12:54 PM | Altair Engineering (Issuer)
Buckner Stephanie (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
11:26 AM | Altair Engineering (Issuer)
Kunju Ravi (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
11:27 AM | Altair Engineering (Issuer)
Gayle Brian (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
11:30 AM | Altair Engineering (Issuer)
Brown Matthew Charles (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
11:18 AM | Altair Engineering (Issuer)
Srikanth Mahalingam (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
11:20 AM | Altair Engineering (Issuer)
Saravia Gilma (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
11:21 AM | Altair Engineering (Issuer)
Messano Amy (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
11:23 AM | Altair Engineering (Issuer)
Marraccini Jeffrey (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
11:24 AM | Altair Engineering (Issuer)
Maitra Raoul (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/16/2024
6:00 AM | Altair Engineering (Filer)
| Form D
Notice of Exempt Offering of Securities | |
07/10/2024
10:04 AM | Altair Engineering (Issuer)
Harris Teresa A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/09/2024
3:08 PM | Altair Engineering (Subject)
Harris Teresa A (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
07/08/2024
3:32 PM | Altair Engineering (Subject)
BlackRock Inc. (Filed by)
| Form SC 13G/A | |
07/01/2024
3:51 PM | Altair Engineering (Issuer)
James R. Scapa Declaration of Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/01/2024
3:54 PM | Altair Engineering (Issuer)
JRS Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/28/2024
7:03 AM | Altair Engineering (Issuer)
Christ Revocable Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/28/2024
7:05 AM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/20/2024
1:46 PM | Altair Engineering (Issuer)
Maitra Raoul (Reporting)
| Form 4/A | |
06/18/2024
3:25 PM | Altair Engineering (Issuer)
GC Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/18/2024
3:27 PM | Altair Engineering (Issuer)
Christ Revocable Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/18/2024
3:28 PM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/14/2024
4:34 PM | Altair Engineering (Subject)
Maitra Raoul (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
06/14/2024
8:03 AM | Altair Engineering (Issuer)
Gayle Brian (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/13/2024
4:48 PM | Altair Engineering (Subject)
Gayle Brian (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
06/13/2024
10:43 AM | Altair Engineering (Issuer)
GC Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/13/2024
10:46 AM | Altair Engineering (Issuer)
Christ Revocable Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/13/2024
10:48 AM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/11/2024
2:55 PM | Altair Engineering (Issuer)
James R. Scapa Declaration of Trust (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/11/2024
2:52 PM | Altair Engineering (Issuer)
JRS Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/11/2024
2:52 PM | Altair Engineering (Issuer)
Scapa James Ralph (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/10/2024
5:55 PM | Altair Engineering (Subject)
Scapa James Ralph (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
06/05/2024
6:04 PM | Altair Engineering (Issuer)
Srikanth Mahalingam (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/05/2024
2:40 PM | Altair Engineering (Issuer)
Harris Teresa A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/04/2024
3:45 PM | Altair Engineering (Subject)
Harris Teresa A (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
06/04/2024
6:01 AM | Altair Engineering (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/31/2024
11:41 AM | Altair Engineering (Subject)
Srikanth Mahalingam (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/23/2024
12:29 PM | Altair Engineering (Issuer)
Messano Amy (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/22/2024
12:23 PM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/22/2024
12:21 PM | Altair Engineering (Issuer)
GC Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/21/2024
4:31 PM | Altair Engineering (Subject)
Messano Amy (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/20/2024
12:38 PM | Altair Engineering (Issuer)
Gayle Brian (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/20/2024
12:39 PM | Altair Engineering (Issuer)
Saravia Gilma (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/20/2024
9:45 AM | Altair Engineering (Subject)
Saravia Gilma (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/20/2024
9:49 AM | Altair Engineering (Subject)
Maitra Raoul (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/20/2024
9:52 AM | Altair Engineering (Subject)
Scapa James Ralph (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
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05/20/2024
9:32 AM | Altair Engineering (Subject)
Messano Amy (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/20/2024
9:36 AM | Altair Engineering (Subject)
Dias Nelson (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/20/2024
9:40 AM | Altair Engineering (Subject)
Srikanth Mahalingam (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/20/2024
9:19 AM | Altair Engineering (Issuer)
Christ George J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/20/2024
9:18 AM | Altair Engineering (Issuer)
GC Investments LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/15/2024
11:26 AM | Altair Engineering (Issuer)
Marraccini Jeffrey (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/14/2024
6:34 PM | Altair Engineering (Subject)
Marraccini Jeffrey (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/14/2024
10:05 AM | Altair Engineering (Issuer)
Kunju Ravi (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/10/2024
4:55 PM | Altair Engineering (Subject)
Kunju Ravi (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
