Altair Engineering (ALTR) SEC Filings & 10K Form

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Recent Altair Engineering SEC Filings

DateFilerForm TypeView
02/05/2025
12:23 PM
Altair Engineering (Subject)
BlackRock, Inc. (Filed by)
Form SCHEDULE 13G/A
01/22/2025
3:17 PM
Altair Engineering (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/16/2025
3:36 PM
Altair Engineering (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/16/2025
3:38 PM
Altair Engineering (Filer)
Form DEFA14A
01/16/2025
8:24 AM
Altair Engineering (Issuer)
Brown Matthew Charles (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
8:08 AM
Altair Engineering (Issuer)
Marraccini Jeffrey (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
8:12 AM
Altair Engineering (Issuer)
Maitra Raoul (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
8:15 AM
Altair Engineering (Issuer)
Kunju Ravi (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
8:19 AM
Altair Engineering (Issuer)
Gayle Brian (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
8:21 AM
Altair Engineering (Issuer)
Buckner Stephanie (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
8:02 AM
Altair Engineering (Issuer)
Srikanth Mahalingam (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
8:04 AM
Altair Engineering (Issuer)
Saravia Gilma (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
8:06 AM
Altair Engineering (Issuer)
Messano Amy (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/26/2024
8:43 AM
Altair Engineering (Issuer)
Brown Matthew Charles (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/20/2024
7:56 PM
Altair Engineering (Subject)
Brown Matthew Charles (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/18/2024
3:30 PM
Altair Engineering (Filer)
Form DEFM14A
12/17/2024
3:36 PM
Altair Engineering (Issuer)
Buckner Stephanie (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/11/2024
10:05 AM
Altair Engineering (Issuer)
Dias Nelson (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/10/2024
2:00 PM
Altair Engineering (Subject)
Dias Nelson (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/05/2024
8:28 AM
Altair Engineering (Issuer)
Scapa James Ralph (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/05/2024
8:30 AM
Altair Engineering (Issuer)
Srikanth Mahalingam (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/02/2024
3:03 PM
Altair Engineering (Issuer)
James R. Scapa Declaration of Trust (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/02/2024
3:04 PM
Altair Engineering (Issuer)
JRS Investments LLC (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/02/2024
3:05 PM
Altair Engineering (Issuer)
Scapa James Ralph (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/27/2024
9:43 AM
Altair Engineering (Issuer)
Srikanth Mahalingam (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/26/2024
6:42 PM
Altair Engineering (Subject)
Srikanth Mahalingam (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/25/2024
7:29 AM
Altair Engineering (Issuer)
Kunju Ravi (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/21/2024
4:21 PM
Altair Engineering (Filer)
Form DEFA14A
11/21/2024
5:07 AM
Altair Engineering (Subject)
PICTET ASSET MANAGEMENT SA (Filed by)
Form SC 13G
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
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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  
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  
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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  
(Data available from 1/1/2016 forward)


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This page (NASDAQ:ALTR) was last updated on 2/11/2025 by MarketBeat.com Staff
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