| Company | Role | Class | Num Shares | Value | Price $ | Report Date | Ownership |
|---|---|---|---|---|---|---|---|
| Altair Engineering Inc. | 10%+ Owner | Class A Common Stock | 0 | $0 | $105.69 | 29 Nov 2024 | Direct |
| Altair Engineering Inc. | 10%+ Owner | Class B Common Stock | 0 | $0 | $113.00 | 26 Mar 2025 | Direct |
| Symbol | Company | Period | Transactions | Value $ | Form Type | Role | Filing Time |
|---|---|---|---|---|---|---|---|
| ALTR | Altair Engineering Inc. | 26 Mar 2025 | 1 | -$748,815,066 | 4 | 10%+ Owner | 26 Mar 2025, 16:46 |
| ALTR | Altair Engineering Inc. | 29 Nov 2024 | 3 | -$686,988 | 4 | 10%+ Owner | 02 Dec 2024, 16:04 |
| ALTR | Altair Engineering Inc. | 28 Oct 2024 | 5 | -$666,849 | 4 | 10%+ Owner | 29 Oct 2024, 14:14 |
| ALTR | Altair Engineering Inc. | 30 Sep 2024 | 4 | -$618,169 | 4 | 10%+ Owner | 01 Oct 2024, 10:56 |
| ALTR | Altair Engineering Inc. | 28 Aug 2024 | 4 | -$578,739 | 4 | 10%+ Owner | 29 Aug 2024, 13:53 |
| ALTR | Altair Engineering Inc. | 29 Jul 2024 | 4 | -$572,708 | 4 | 10%+ Owner | 30 Jul 2024, 15:32 |
| ALTR | Altair Engineering Inc. | 28 Jun 2024 | 5 | -$638,708 | 4 | 10%+ Owner | 01 Jul 2024, 16:54 |
| ALTR | Altair Engineering Inc. | 10 Jun 2024 | 5 | -$605,569 | 4 | 10%+ Owner | 11 Jun 2024, 15:52 |
| ALTR | Altair Engineering Inc. | 18 Mar 2024 | 4 | -$403,712 | 4 | 10%+ Owner | 19 Mar 2024, 17:32 |
| ALTR | Altair Engineering Inc. | 16 Feb 2024 | 4 | -$455,344 | 4 | 10%+ Owner | 20 Feb 2024, 08:09 |
| ALTR | Altair Engineering Inc. | 16 Jan 2024 | 4 | -$418,656 | 4 | 10%+ Owner | 18 Jan 2024, 17:59 |
| ALTR | Altair Engineering Inc. | 18 Dec 2023 | 4 | -$370,575 | 4 | 10%+ Owner | 19 Dec 2023, 19:07 |
| ALTR | Altair Engineering Inc. | 16 Nov 2023 | 5 | -$362,609 | 4 | 10%+ Owner | 17 Nov 2023, 16:21 |
| ALTR | Altair Engineering Inc. | 16 Oct 2023 | 5 | -$326,169 | 4 | 10%+ Owner | 17 Oct 2023, 15:13 |
| ALTR | Altair Engineering Inc. | 18 Sep 2023 | 3 | -$326,450 | 4 | 10%+ Owner | 19 Sep 2023, 21:02 |
| ALTR | Altair Engineering Inc. | 16 Aug 2023 | 3 | -$312,325 | 4 | 10%+ Owner | 17 Aug 2023, 12:59 |
| ALTR | Altair Engineering Inc. | 17 Jul 2023 | 4 | -$374,558 | 4 | 10%+ Owner | 18 Jul 2023, 11:03 |
| ALTR | Altair Engineering Inc. | 16 Jun 2023 | 4 | -$375,876 | 4 | 10%+ Owner | 20 Jun 2023, 10:47 |
| ALTR | Altair Engineering Inc. | 16 May 2023 | 3 | -$339,715 | 4 | 10%+ Owner | 17 May 2023, 14:05 |
| ALTR | Altair Engineering Inc. | 17 Apr 2023 | 4 | -$351,647 | 4 | 10%+ Owner | 18 Apr 2023, 15:49 |
| ALTR | Altair Engineering Inc. | 15 Mar 2023 | 4 | -$992,426 | 4 | 10%+ Owner | 16 Mar 2023, 09:20 |
| ALTR | Altair Engineering Inc. | 15 Feb 2023 | 4 | -$865,428 | 4 | 10%+ Owner | 16 Feb 2023, 12:31 |
| ALTR | Altair Engineering Inc. | 17 Jan 2023 | 3 | -$748,575 | 4 | 10%+ Owner | 19 Jan 2023, 13:46 |
| ALTR | Altair Engineering Inc. | 09 Jan 2023 | 4 | -$726,762 | 4 | 10%+ Owner | 10 Jan 2023, 15:42 |
| ALTR | Altair Engineering Inc. | 15 Dec 2021 | 6 | -$1,365,138 | 4 | 10%+ Owner | 17 Dec 2021, 09:59 |
| ALTR | Altair Engineering Inc. | 17 Nov 2021 | 3 | -$693,446 | 4 | 10%+ Owner | 19 Nov 2021, 12:40 |
| ALTR | Altair Engineering Inc. | 15 Nov 2021 | 8 | -$1,084,467 | 4 | 10%+ Owner | 17 Nov 2021, 11:01 |
| ALTR | Altair Engineering Inc. | 19 Oct 2021 | 4 | -$672,948 | 4 | 10%+ Owner | 21 Oct 2021, 09:50 |
| ALTR | Altair Engineering Inc. | 15 Oct 2021 | 8 | -$1,539,059 | 4 | 10%+ Owner | 19 Oct 2021, 11:02 |
| ALTR | Altair Engineering Inc. | 17 Sep 2021 | 5 | -$1,088,238 | 4 | 10%+ Owner | 20 Sep 2021, 10:40 |
| ALTR | Altair Engineering Inc. | 15 Sep 2021 | 8 | -$1,161,162 | 4 | 10%+ Owner | 17 Sep 2021, 14:14 |
| ALTR | Altair Engineering Inc. | 18 Aug 2021 | 3 | -$689,666 | 4 | 10%+ Owner | 19 Aug 2021, 10:12 |
| ALTR | Altair Engineering Inc. | 16 Aug 2021 | 7 | -$1,456,766 | 4 | 10%+ Owner | 18 Aug 2021, 10:56 |
| ALTR | Altair Engineering Inc. | 19 Jul 2021 | 6 | -$307,998 | 4 | 10%+ Owner | 20 Jul 2021, 14:39 |
| ALTR | Altair Engineering Inc. | 15 Jul 2021 | 10 | -$1,657,058 | 4 | 10%+ Owner | 19 Jul 2021, 11:33 |
| ALTR | Altair Engineering Inc. | 17 Jun 2021 | 4 | -$629,545 | 4 | 10%+ Owner | 21 Jun 2021, 08:39 |
| ALTR | Altair Engineering Inc. | 15 Jun 2021 | 10 | -$1,281,356 | 4 | 10%+ Owner | 17 Jun 2021, 13:42 |
| ALTR | Altair Engineering Inc. | 19 May 2021 | 4 | -$373,550 | 4 | 10%+ Owner | 20 May 2021, 09:37 |
| ALTR | Altair Engineering Inc. | 17 May 2021 | 8 | -$1,543,941 | 4 | 10%+ Owner | 19 May 2021, 16:58 |