| Lastest Insider Transactions Of Altair Engineering Inc. ( ALTR ) |
| Symbol | Company Name | Insider Name | Title | Date | Transation | Share | Price | Amount | File Date |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2025-03-17 | Sell | 229 | 111.30 | 25,488 | 2025-03-21 16:53:06 |
| ALTR | Altair Engineering Inc. | Saravia Gilma | Chief People Officer | 2025-03-17 | Sell | 425 | 111.30 | 47,303 | 2025-03-19 11:39:04 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2025-03-17 | Sell | 9 | 111.30 | 1,002 | 2025-03-19 11:35:34 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2025-03-17 | Sell | 90 | 111.30 | 10,017 | 2025-03-19 11:33:53 |
| ALTR | Altair Engineering Inc. | Dias Nelson | Chief Revenue Officer | 2025-03-17 | Sell | 1,671 | 111.30 | 185,982 | 2025-03-19 11:31:16 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2025-03-17 | Sell | 403 | 111.30 | 44,854 | 2025-03-19 11:29:54 |
| ALTR | Altair Engineering Inc. | Gayle Brian | Chief Accounting Officer | 2025-03-17 | Sell | 182 | 111.30 | 20,257 | 2025-03-19 11:26:06 |
| ALTR | Altair Engineering Inc. | Buckner Stephanie | Chief Operating Officer | 2025-03-17 | Sell | 47 | 111.30 | 5,231 | 2025-03-19 10:48:06 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2025-03-17 | Sell | 416 | 111.30 | 46,301 | 2025-03-19 10:46:00 |
| ALTR | Altair Engineering Inc. | Saravia Gilma | Chief People Officer | 2025-03-18 | Sell | 425 | 111.30 | 47,303 | 2025-03-19 10:44:38 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2025-03-06 | Sell | 450 | 111.08 | 49,984 | 2025-03-06 17:46:23 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2025-03-03 | Sell | 255 | 111.45 | 28,420 | 2025-03-05 12:14:54 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2025-03-03 | Sell | 197 | 111.45 | 21,956 | 2025-03-05 12:09:04 |
| ALTR | Altair Engineering Inc. | Gayle Brian | Chief Accounting Officer | 2025-03-03 | Sell | 184 | 111.45 | 20,507 | 2025-03-05 12:07:55 |
| ALTR | Altair Engineering Inc. | Dias Nelson | Chief Revenue Officer | 2025-03-03 | Sell | 491 | 111.45 | 54,722 | 2025-03-05 12:06:45 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2025-03-03 | Sell | 240 | 111.45 | 26,748 | 2025-03-05 12:05:41 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2025-03-03 | Sell | 121 | 111.45 | 13,485 | 2025-03-05 12:04:40 |
| ALTR | Altair Engineering Inc. | Saravia Gilma | Chief People Officer | 2025-03-03 | Sell | 264 | 111.45 | 29,423 | 2025-03-05 12:03:32 |
| ALTR | Altair Engineering Inc. | Brown Matthew Charles | Chief Financial Officer | 2025-03-03 | Sell | 742 | 111.45 | 82,696 | 2025-03-05 12:02:28 |
| ALTR | Altair Engineering Inc. | Buckner Stephanie | Chief Operating Officer | 2025-02-12 | Sell | 62 | 111.45 | 6,910 | 2025-03-05 12:01:12 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2025-02-26 | Sell | 120 | 111.53 | 13,384 | 2025-02-27 13:58:35 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2025-02-26 | Sell | 188 | 111.53 | 20,968 | 2025-02-27 13:56:50 |
| ALTR | Altair Engineering Inc. | Dias Nelson | Chief Revenue Officer | 2025-02-26 | Sell | 373 | 111.53 | 41,601 | 2025-02-27 13:55:30 |
| ALTR | Altair Engineering Inc. | Brown Matthew Charles | Chief Financial Officer | 2025-02-26 | Sell | 3,811 | 111.53 | 425,041 | 2025-02-27 13:53:26 |
| ALTR | Altair Engineering Inc. | Saravia Gilma | Chief People Officer | 2025-02-26 | Sell | 243 | 111.53 | 27,102 | 2025-02-27 13:51:22 |
| ALTR | Altair Engineering Inc. | Gayle Brian | Chief Accounting Officer | 2025-02-26 | Sell | 137 | 111.53 | 15,280 | 2025-02-27 13:49:42 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2025-02-26 | Sell | 235 | 111.53 | 26,210 | 2025-02-27 13:47:31 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2025-02-25 | Sell | 2,700 | 111.61 | 301,356 | 2025-02-27 10:49:17 |
| ALTR | Altair Engineering Inc. | Brown Matthew Charles | Chief Financial Officer | 2024-12-23 | Sell | 1,048 | 108.90 | 114,127 | 2024-12-26 09:43:34 |
| ALTR | Altair Engineering Inc. | Buckner Stephanie | Chief Operating Officer | 2024-01-12 | Option Exercise | 1,800 | 0.00 | 0 | 2024-12-17 16:36:14 |
| ALTR | Altair Engineering Inc. | Dias Nelson | Chief Revenue Officer | 2024-12-10 | Sell | 22,500 | 106.23 | 2,390,081 | 2024-12-11 11:05:08 |
| ALTR | Altair Engineering Inc. | Dias Nelson | Chief Revenue Officer | 2024-12-10 | Option Exercise | 22,500 | 0.00 | 0 | 2024-12-11 11:05:08 |
| ALTR | Altair Engineering Inc. | Srikanth Mahalingam | Chief Technology Officer | 2024-12-03 | Sell | 1,298 | 105.65 | 137,134 | 2024-12-05 09:30:46 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-12-03 | Sell | 16,095 | 105.65 | 1,700,437 | 2024-12-05 09:28:58 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-11-29 | Sell | 13,000 | 105.69 | 1,373,975 | 2024-12-02 16:05:23 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-11-29 | Sell | 6,500 | 105.69 | 686,988 | 2024-12-02 16:04:19 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-11-29 | Sell | 6,500 | 105.69 | 686,988 | 2024-12-02 16:03:16 |
| ALTR | Altair Engineering Inc. | Srikanth Mahalingam | Chief Technology Officer | 2024-11-26 | Sell | 119 | 105.80 | 12,590 | 2024-11-27 10:43:21 |
| ALTR | Altair Engineering Inc. | Srikanth Mahalingam | Chief Technology Officer | 2024-11-26 | Option Exercise | 6,000 | 0.00 | 0 | 2024-11-27 10:43:21 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2024-11-22 | Option Exercise | 200 | 0.00 | 0 | 2024-11-25 08:29:05 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2024-11-11 | Sell | 360 | 103.65 | 37,314 | 2024-11-12 11:16:33 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-11-05 | Sell | 1,824 | 104.10 | 189,878 | 2024-11-07 11:25:08 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-11-05 | Option Exercise | 1,824 | 0.00 | 0 | 2024-11-07 11:25:08 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-11-05 | Sell | 620 | 104.10 | 64,542 | 2024-11-06 11:30:37 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-11-05 | Option Exercise | 620 | 0.00 | 0 | 2024-11-06 11:30:37 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-10-28 | Sell | 13,000 | 102.59 | 1,333,696 | 2024-10-29 14:21:56 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-10-28 | Sell | 6,500 | 102.59 | 666,849 | 2024-10-29 14:14:04 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-10-28 | Sell | 6,500 | 102.59 | 666,847 | 2024-10-29 14:11:39 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-10-23 | Sell | 100,000 | 106.57 | 10,657,488 | 2024-10-25 14:03:20 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-10-23 | Sell | 100,000 | 106.57 | 10,657,488 | 2024-10-25 14:02:05 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-10-11 | Sell | 100,000 | 95.23 | 9,523,390 | 2024-10-15 09:42:45 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2024-10-11 | Sell | 100,000 | 95.23 | 9,523,390 | 2024-10-15 09:41:18 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-10-09 | Sell | 49,952 | 95.72 | 4,781,646 | 2024-10-10 08:05:26 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-10-09 | Sell | 49,952 | 95.72 | 4,781,646 | 2024-10-10 08:02:37 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-10-01 | Sell | 620 | 95.12 | 58,974 | 2024-10-01 18:52:52 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-10-01 | Option Exercise | 620 | 0.00 | 0 | 2024-10-01 18:52:52 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-09-30 | Sell | 13,000 | 95.10 | 1,236,337 | 2024-10-01 10:58:02 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-09-30 | Sell | 6,500 | 95.10 | 618,169 | 2024-10-01 10:56:36 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-09-30 | Sell | 6,500 | 95.10 | 618,169 | 2024-10-01 10:54:32 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-09-27 | Sell | 50,048 | 95.07 | 4,758,224 | 2024-09-30 14:48:42 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-09-27 | Sell | 50,048 | 95.07 | 4,758,224 | 2024-09-30 14:47:19 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-08-28 | Sell | 13,000 | 89.04 | 1,157,478 | 2024-08-29 13:55:25 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-08-28 | Sell | 6,500 | 89.04 | 578,739 | 2024-08-29 13:53:53 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-08-28 | Sell | 6,500 | 89.04 | 578,739 | 2024-08-29 13:53:53 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-07-29 | Sell | 6,500 | 88.11 | 572,708 | 2024-07-30 15:32:45 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-07-29 | Sell | 6,500 | 88.11 | 572,707 | 2024-07-30 15:30:35 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-07-09 | Sell | 620 | 97.73 | 60,593 | 2024-07-10 11:04:46 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-07-09 | Option Exercise | 620 | 0.00 | 0 | 2024-07-10 11:04:46 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-06-28 | Sell | 13,000 | 98.26 | 1,277,415 | 2024-07-01 17:02:17 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-06-28 | Sell | 6,500 | 98.26 | 638,708 | 2024-07-01 16:54:04 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-06-28 | Sell | 6,500 | 98.26 | 638,707 | 2024-07-01 16:51:19 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-06-27 | Sell | 100,000 | 98.40 | 9,839,631 | 2024-06-28 08:05:24 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-06-27 | Sell | 100,000 | 98.40 | 9,839,631 | 2024-06-28 08:03:15 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2024-05-10 | Sell | 962 | 85.75 | 82,492 | 2024-06-20 14:46:32 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2024-06-14 | Sell | 1,030 | 96.31 | 99,199 | 2024-06-18 16:10:34 |
| ALTR | Altair Engineering Inc. | Gayle Brian | Chief Accounting Officer | 2024-06-13 | Sell | 1,866 | 96.57 | 180,200 | 2024-06-14 09:03:24 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-06-11 | Sell | 200,000 | 94.86 | 18,971,822 | 2024-06-13 11:48:12 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-06-11 | Sell | 100,000 | 92.49 | 9,249,046 | 2024-06-13 11:46:02 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2024-06-12 | Sell | 100,000 | 97.23 | 9,722,777 | 2024-06-13 11:43:47 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-06-10 | Sell | 6,500 | 93.16 | 605,569 | 2024-06-11 15:55:45 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-06-10 | Sell | 13,000 | 93.16 | 1,211,139 | 2024-06-11 15:52:56 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-06-10 | Sell | 6,500 | 93.16 | 605,569 | 2024-06-11 15:52:41 |
| ALTR | Altair Engineering Inc. | Srikanth Mahalingam | Chief Technology Officer | 2024-06-05 | Sell | 2,479 | 89.01 | 220,645 | 2024-06-05 19:04:30 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-06-04 | Sell | 620 | 85.95 | 53,289 | 2024-06-05 15:40:48 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-06-04 | Option Exercise | 620 | 0.00 | 0 | 2024-06-05 15:40:48 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2024-05-21 | Sell | 19,852 | 90.51 | 1,796,781 | 2024-05-23 13:29:27 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2024-05-21 | Option Exercise | 19,852 | 0.00 | 0 | 2024-05-23 13:29:27 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-05-20 | Sell | 50,000 | 91.70 | 4,584,768 | 2024-05-22 13:23:39 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2024-05-20 | Sell | 50,000 | 91.70 | 4,584,768 | 2024-05-22 13:21:25 |
| ALTR | Altair Engineering Inc. | Saravia Gilma | Chief People Officer | 2024-05-17 | Sell | 1,684 | 91.08 | 153,379 | 2024-05-20 13:39:28 |
| ALTR | Altair Engineering Inc. | Gayle Brian | Chief Accounting Officer | 2024-05-17 | Sell | 773 | 90.10 | 69,649 | 2024-05-20 13:38:18 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-05-17 | Sell | 50,000 | 90.36 | 4,517,986 | 2024-05-20 10:19:30 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2024-05-17 | Sell | 50,000 | 90.36 | 4,517,986 | 2024-05-20 10:18:05 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-05-13 | Sell | 12,043 | 85.74 | 1,032,525 | 2024-05-15 12:26:56 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-05-13 | Option Exercise | 12,000 | 0.00 | 0 | 2024-05-15 12:26:56 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2024-05-10 | Sell | 1,095 | 85.32 | 93,426 | 2024-05-14 11:05:56 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2024-05-10 | Sell | 1,316 | 85.73 | 112,824 | 2024-05-14 10:59:51 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-05-08 | Sell | 23 | 84.38 | 1,941 | 2024-05-10 09:23:39 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2024-05-08 | Sell | 25 | 84.38 | 2,110 | 2024-05-10 09:21:23 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2024-05-08 | Sell | 153 | 84.38 | 12,910 | 2024-05-10 09:19:35 |
| ALTR | Altair Engineering Inc. | Dias Nelson | Chief Revenue Officer | 2024-05-08 | Sell | 285 | 84.38 | 24,048 | 2024-05-10 09:06:58 |
| ALTR | Altair Engineering Inc. | Saravia Gilma | Chief People Officer | 2024-05-08 | Sell | 153 | 84.38 | 12,910 | 2024-05-10 09:05:04 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2024-05-08 | Sell | 153 | 84.38 | 12,910 | 2024-05-10 09:01:43 |
| ALTR | Altair Engineering Inc. | Gayle Brian | Chief Accounting Officer | 2024-05-08 | Sell | 173 | 84.38 | 14,597 | 2024-05-10 08:59:19 |
| ALTR | Altair Engineering Inc. | Srikanth Mahalingam | Chief Technology Officer | 2024-05-08 | Sell | 153 | 84.38 | 12,910 | 2024-05-10 08:55:36 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-05-08 | Sell | 5,569 | 84.37 | 469,877 | 2024-05-10 08:52:55 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-05-08 | Sell | 87,217 | 85.12 | 7,423,856 | 2024-05-09 19:51:28 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-05-08 | Sell | 87,217 | 85.12 | 7,423,856 | 2024-05-09 19:49:13 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-05-07 | Sell | 620 | 82.89 | 51,392 | 2024-05-08 11:26:23 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-05-07 | Option Exercise | 620 | 0.00 | 0 | 2024-05-08 11:26:23 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-04-09 | Sell | 12,783 | 85.85 | 1,097,379 | 2024-04-11 16:44:39 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-04-09 | Sell | 12,783 | 85.85 | 1,097,379 | 2024-04-11 16:38:53 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-04-02 | Sell | 620 | 84.00 | 52,080 | 2024-04-03 10:17:26 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-04-02 | Option Exercise | 620 | 0.00 | 0 | 2024-04-03 10:17:26 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-03-28 | Sell | 83,336 | 85.99 | 7,165,780 | 2024-04-01 10:47:14 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-03-28 | Sell | 83,336 | 85.99 | 7,165,780 | 2024-04-01 10:41:37 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-03-28 | Sell | 83,336 | 85.99 | 7,165,780 | 2024-04-01 10:41:37 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-03-26 | Sell | 3,904 | 85.42 | 333,490 | 2024-03-28 14:54:15 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-03-26 | Sell | 3,904 | 85.42 | 333,490 | 2024-03-28 14:49:39 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-03-26 | Sell | 3,904 | 85.42 | 333,490 | 2024-03-28 14:49:39 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-03-22 | Sell | 12,760 | 86.71 | 1,106,378 | 2024-03-26 13:23:48 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-03-22 | Sell | 12,760 | 86.71 | 1,106,378 | 2024-03-26 13:17:35 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-03-18 | Sell | 10,000 | 80.74 | 807,424 | 2024-03-19 17:34:28 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-03-18 | Sell | 5,000 | 80.74 | 403,712 | 2024-03-19 17:32:35 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-03-18 | Sell | 5,000 | 80.74 | 403,712 | 2024-03-19 17:28:32 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2024-03-13 | Sell | 112 | 81.66 | 9,145 | 2024-03-14 16:03:54 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-03-13 | Sell | 1,779 | 81.66 | 145,272 | 2024-03-14 16:02:19 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-03-13 | Sell | 105 | 81.66 | 8,574 | 2024-03-14 16:00:33 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2024-03-13 | Sell | 75 | 81.66 | 6,125 | 2024-03-14 15:58:32 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2024-03-13 | Sell | 76 | 81.65 | 6,206 | 2024-03-14 15:52:37 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-03-06 | Sell | 5,778 | 83.04 | 479,807 | 2024-03-07 12:09:03 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-03-06 | Option Exercise | 5,778 | 0.00 | 0 | 2024-03-07 12:09:03 |
| ALTR | Altair Engineering Inc. | Buckner Stephanie | Chief Operating Officer | 2024-03-04 | Sell | 546 | 85.32 | 46,585 | 2024-03-06 16:55:53 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-03-05 | Sell | 620 | 85.01 | 52,706 | 2024-03-06 16:39:17 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2024-03-05 | Option Exercise | 620 | 0.00 | 0 | 2024-03-06 16:39:17 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2024-03-04 | Sell | 134 | 85.32 | 11,433 | 2024-03-05 14:42:58 |
| ALTR | Altair Engineering Inc. | Brown Matthew Charles | Chief Financial Officer | 2024-03-04 | Sell | 883 | 85.32 | 75,338 | 2024-03-05 14:41:52 |
| ALTR | Altair Engineering Inc. | Marraccini Jeffrey | See Remarks | 2024-03-04 | Sell | 197 | 85.32 | 16,808 | 2024-03-05 14:40:41 |
| ALTR | Altair Engineering Inc. | Saravia Gilma | Chief People Officer | 2024-03-04 | Sell | 264 | 85.32 | 22,524 | 2024-03-05 14:39:08 |
| ALTR | Altair Engineering Inc. | Dias Nelson | Chief Revenue Officer | 2024-03-04 | Sell | 491 | 85.32 | 41,892 | 2024-03-05 14:37:56 |
| ALTR | Altair Engineering Inc. | Srikanth Mahalingam | Chief Technology Officer | 2024-03-04 | Sell | 457 | 85.32 | 38,991 | 2024-03-05 14:36:44 |
| ALTR | Altair Engineering Inc. | Gayle Brian | Chief Accounting Officer | 2024-03-04 | Sell | 193 | 85.32 | 16,467 | 2024-03-05 14:35:38 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-03-04 | Sell | 3,300 | 85.32 | 281,556 | 2024-03-05 14:34:26 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2024-03-04 | Sell | 285 | 85.32 | 24,316 | 2024-03-05 14:33:19 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2024-03-04 | Sell | 291 | 85.32 | 24,828 | 2024-03-05 14:31:53 |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | 2024-02-28 | Sell | 236 | 83.65 | 19,742 | 2024-02-29 15:47:57 |
| ALTR | Altair Engineering Inc. | Saravia Gilma | Chief People Officer | 2024-02-28 | Sell | 1,003 | 83.65 | 83,902 | 2024-02-29 15:45:30 |
| ALTR | Altair Engineering Inc. | Maitra Raoul | Chief Legal Officer | 2024-02-28 | Sell | 189 | 83.65 | 15,810 | 2024-02-29 15:42:48 |
| ALTR | Altair Engineering Inc. | Gayle Brian | Chief Accounting Officer | 2024-02-28 | Sell | 138 | 83.65 | 11,544 | 2024-02-29 15:39:25 |
| ALTR | Altair Engineering Inc. | Kunju Ravi | Chief Product Strategy Officer | 2024-02-28 | Sell | 121 | 83.65 | 10,122 | 2024-02-29 15:37:29 |
| ALTR | Altair Engineering Inc. | Brown Matthew Charles | Chief Financial Officer | 2024-02-28 | Sell | 4,363 | 83.65 | 364,969 | 2024-02-29 15:34:55 |
| ALTR | Altair Engineering Inc. | Dias Nelson | Chief Revenue Officer | 2024-02-28 | Sell | 375 | 83.65 | 31,369 | 2024-02-29 15:29:22 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-02-16 | Sell | 10,000 | 91.07 | 910,688 | 2024-02-20 08:13:48 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-02-16 | Sell | 5,000 | 91.07 | 455,344 | 2024-02-20 08:09:56 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-02-16 | Sell | 5,000 | 91.07 | 455,344 | 2024-02-20 08:07:50 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2024-01-23 | Sell | 100,000 | 87.32 | 8,732,124 | 2024-01-25 15:48:02 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2024-01-23 | Sell | 100,000 | 87.32 | 8,732,124 | 2024-01-25 15:46:08 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2024-01-16 | Sell | 10,000 | 83.73 | 837,312 | 2024-01-18 18:01:04 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2024-01-16 | Sell | 5,000 | 83.73 | 418,656 | 2024-01-18 17:59:24 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2024-01-16 | Sell | 5,000 | 83.73 | 418,656 | 2024-01-18 17:55:23 |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer 10% Owner | 2023-12-18 | Sell | 10,000 | 74.12 | 741,150 | 2023-12-19 19:08:38 |
| ALTR | Altair Engineering Inc. | JRS Investments LLC | 10% Owner | 2023-12-18 | Sell | 5,000 | 74.12 | 370,575 | 2023-12-19 19:07:23 |
| ALTR | Altair Engineering Inc. | James R. Scapa Declaration of Trust | 10% Owner | 2023-12-18 | Sell | 5,000 | 74.11 | 370,575 | 2023-12-19 19:05:30 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2023-12-08 | Sell | 4,564 | 71.58 | 326,688 | 2023-12-11 09:16:52 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2023-12-08 | Sell | 4,564 | 71.58 | 326,688 | 2023-12-11 09:10:24 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2023-12-06 | Sell | 14,411 | 72.05 | 1,038,366 | 2023-12-08 12:00:50 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2023-12-06 | Sell | 14,411 | 72.05 | 1,038,366 | 2023-12-08 11:55:07 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2023-12-06 | Sell | 600 | 71.65 | 42,990 | 2023-12-08 11:50:13 |
| ALTR | Altair Engineering Inc. | Harris Teresa A | Directior | 2023-12-06 | Option Exercise | 600 | 0.00 | 0 | 2023-12-08 11:50:13 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2023-12-01 | Sell | 45,766 | 72.79 | 3,331,165 | 2023-12-05 15:04:05 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2023-12-01 | Sell | 45,766 | 72.79 | 3,331,165 | 2023-12-05 14:58:36 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2023-11-29 | Sell | 26,682 | 73.08 | 1,949,987 | 2023-12-01 14:22:33 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2023-11-29 | Sell | 26,682 | 73.08 | 1,949,987 | 2023-12-01 14:20:57 |
| ALTR | Altair Engineering Inc. | Christ George J | 10% Owner | 2023-11-20 | Sell | 108,577 | 73.93 | 8,026,666 | 2023-11-22 12:07:25 |
| ALTR | Altair Engineering Inc. | GC Investments LLC | 10% Owner | 2023-11-21 | Sell | 8,577 | 73.09 | 626,929 | 2023-11-22 12:06:08 |
| ALTR | Altair Engineering Inc. | Christ Revocable Trust | 10% Owner | 2023-11-20 | Sell | 100,000 | 74.00 | 7,399,737 | 2023-11-22 12:04:49 |
