| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 18, 2024 | Sale | $80.74 | 5,000 | 403,712 | 4,500 | Mar 19, 2024, 05:34 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 18, 2024 | Sale | $80.74 | 5,000 | 403,712 | 4,500 | Mar 19, 2024, 05:34 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 13, 2024 | Sale | $81.66 | 1,686 | 137,678 | 98,605 | Mar 14, 2024, 04:02 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 13, 2024 | Sale | $81.66 | 93 | 7,594 | 1,202 | Mar 14, 2024, 04:02 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 04, 2024 | Sale | $85.32 | 3,300 | 281,556 | 100,291 | Mar 05, 2024, 02:34 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Feb 16, 2024 | Sale | $91.07 | 5,000 | 455,344 | 2,789 | Feb 20, 2024, 08:13 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Feb 16, 2024 | Sale | $91.07 | 5,000 | 455,344 | 2,790 | Feb 20, 2024, 08:13 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jan 16, 2024 | Sale | $83.73 | 5,000 | 418,656 | 2,904 | Jan 18, 2024, 06:01 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jan 16, 2024 | Sale | $83.73 | 5,000 | 418,656 | 2,905 | Jan 18, 2024, 06:01 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Dec 18, 2023 | Sale | $74.11 | 5,000 | 370,575 | 67 | Dec 19, 2023, 07:08 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Dec 18, 2023 | Sale | $74.12 | 5,000 | 370,575 | 68 | Dec 19, 2023, 07:08 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 16, 2023 | Sale | $72.52 | 5,000 | 362,609 | 4,053 | Nov 17, 2023, 04:22 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 16, 2023 | Sale | $72.52 | 5,000 | 362,609 | 4,053 | Nov 17, 2023, 04:22 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Oct 16, 2023 | Sale | $65.23 | 5,000 | 326,169 | 3,698 | Oct 17, 2023, 03:15 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Oct 16, 2023 | Sale | $65.23 | 5,000 | 326,169 | 3,698 | Oct 17, 2023, 03:15 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Sep 18, 2023 | Sale | $65.29 | 5,000 | 326,450 | 0 | Sep 19, 2023, 08:04 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Sep 18, 2023 | Sale | $65.29 | 5,000 | 326,450 | 0 | Sep 19, 2023, 08:04 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Aug 16, 2023 | Sale | $62.47 | 5,000 | 312,325 | 0 | Aug 17, 2023, 12:00 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Aug 16, 2023 | Sale | $62.47 | 5,000 | 312,325 | 0 | Aug 17, 2023, 12:00 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jul 17, 2023 | Sale | $74.91 | 5,000 | 374,558 | 2,601 | Jul 18, 2023, 11:05 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jul 17, 2023 | Sale | $74.91 | 5,000 | 374,558 | 2,601 | Jul 18, 2023, 11:05 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jun 16, 2023 | Sale | $75.18 | 5,000 | 375,876 | 1,400 | Jun 20, 2023, 10:48 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jun 16, 2023 | Sale | $75.18 | 5,000 | 375,876 | 1,400 | Jun 20, 2023, 10:48 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jun 06, 2023 | Sale | $74.30 | 9,267 | 688,557 | 103,591 | Jun 07, 2023, 12:40 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 16, 2023 | Sale | $67.94 | 5,000 | 339,715 | 0 | May 17, 2023, 02:06 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 16, 2023 | Sale | $67.94 | 5,000 | 339,715 | 0 | May 17, 2023, 02:06 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 12, 2023 | Sale | $67.40 | 548 | 36,935 | 112,858 | May 15, 2023, 06:31 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 10, 2023 | Sale | $67.82 | 5,358 | 363,380 | 113,406 | May 11, 2023, 10:47 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Apr 17, 2023 | Sale | $70.33 | 5,000 | 351,647 | 291 | Apr 18, 2023, 03:50 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Apr 17, 2023 | Sale | $70.33 | 5,000 | 351,647 | 291 | Apr 18, 2023, 03:50 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 16, 2023 | Sale | $64.97 | 1,784 | 115,906 | 118,764 | Mar 17, 2023, 02:22 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 16, 2023 | Sale | $64.97 | 109 | 7,081 | 1,295 | Mar 17, 2023, 02:22 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 15, 2023 | Sale | $66.16 | 20,000 | 1,323,235 | 8,676 | Mar 16, 2023, 09:24 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 15, 2023 | Sale | $66.16 | 15,000 | 992,426 | 6,507 | Mar 16, 2023, 09:24 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 13, 2023 | Sale | $62.49 | 1,414 | 88,362 | 120,548 | Mar 15, 2023, 04:42 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 13, 2023 | Sale | $62.49 | 91 | 5,687 | 1,404 | Mar 15, 2023, 04:42 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Feb 15, 2023 | Sale | $57.70 | 15,000 | 865,428 | 2,547 | Feb 16, 2023, 01:32 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Feb 15, 2023 | Sale | $57.70 | 20,000 | 1,153,904 | 3,396 | Feb 16, 2023, 01:32 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jan 17, 2023 | Sale | $49.90 | 20,000 | 998,100 | 0 | Jan 19, 2023, 02:48 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jan 17, 2023 | Sale | $49.90 | 15,000 | 748,575 | 0 | Jan 19, 2023, 02:48 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jan 09, 2023 | Sale | $48.45 | 20,000 | 969,015 | 289 | Jan 10, 2023, 04:43 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jan 09, 2023 | Sale | $48.45 | 15,000 | 726,762 | 217 | Jan 10, 2023, 04:43 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 15, 2022 | Sale | $49.97 | 57,915 | 2,894,128 | 103,224 | Nov 17, 2022, 09:41 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 16, 2022 | Sale | $49.52 | 19,262 | 953,893 | 83,962 | Nov 17, 2022, 09:41 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 12, 2022 | Sale | $49.31 | 2,520 | 124,254 | 161,139 | May 13, 2022, 09:36 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 16, 2022 | Sale | $58.50 | 1,760 | 102,958 | 136,291 | Mar 18, 2022, 04:35 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 16, 2022 | Sale | $58.49 | 107 | 6,259 | 1,496 | Mar 18, 2022, 04:35 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 17, 2020 | Sale | $24.61 | 85 | 2,092 | 1,776 | Mar 18, 2022, 04:35 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 12, 2021 | Sale | $59.50 | 81 | 4,820 | 1,699 | Mar 18, 2022, 04:35 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 16, 2021 | Sale | $60.42 | 84 | 5,075 | 1,777 | Mar 18, 2022, 04:35 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 14, 2022 | Sale | $59.96 | 92 | 5,516 | 1,602 | Mar 18, 2022, 04:35 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 14, 2022 | Sale | $59.96 | 1,406 | 84,302 | 118,724 | Mar 16, 2022, 12:47 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 07, 2022 | Sale | $64.55 | 1,791 | 115,609 | 120,130 | Mar 09, 2022, 08:08 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 09, 2020 | Sale | $28.83 | 2,369 | 68,296 | 36,322 | Feb 02, 2022, 01:12 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Dec 15, 2021 | Sale | $71.34 | 23,669 | 1,688,647 | 17,292 | Dec 17, 2021, 10:56 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Dec 15, 2021 | Sale | $71.32 | 19,140 | 1,365,138 | 14,163 | Dec 17, 2021, 10:56 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 17, 2021 | Sale | $78.27 | 9,867 | 772,300 | 0 | Nov 19, 2021, 01:43 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 17, 2021 | Sale | $78.27 | 8,860 | 693,446 | 0 | Nov 19, 2021, 01:43 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 15, 2021 | Sale | $77.76 | 7,751 | 602,693 | 135 | Nov 17, 2021, 12:06 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 15, 2021 | Sale | $77.75 | 6,747 | 524,598 | 100 | Nov 17, 2021, 12:06 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 16, 2021 | Sale | $79.11 | 8,099 | 640,725 | 4,294 | Nov 17, 2021, 12:06 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Nov 16, 2021 | Sale | $79.13 | 7,075 | 559,870 | 3,860 | Nov 17, 2021, 12:06 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Oct 19, 2021 | Sale | $74.15 | 9,076 | 672,948 | 8,270 | Oct 21, 2021, 09:51 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Oct 19, 2021 | Sale | $74.11 | 11,955 | 886,028 | 8,195 | Oct 21, 2021, 09:51 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Oct 15, 2021 | Sale | $73.47 | 13,448 | 987,962 | 6,826 | Oct 19, 2021, 11:03 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Oct 15, 2021 | Sale | $73.45 | 10,168 | 746,806 | 4,346 | Oct 19, 2021, 11:03 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Oct 18, 2021 | Sale | $73.66 | 14,597 | 1,075,204 | 14,097 | Oct 19, 2021, 11:03 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Oct 18, 2021 | Sale | $73.66 | 10,756 | 792,253 | 10,456 | Oct 19, 2021, 11:03 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Sep 17, 2021 | Sale | $74.66 | 22,151 | 1,653,891 | 4,025 | Sep 20, 2021, 10:42 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Sep 17, 2021 | Sale | $74.69 | 14,571 | 1,088,238 | 2,700 | Sep 20, 2021, 10:42 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Sep 15, 2021 | Sale | $75.40 | 8,818 | 664,856 | 4,868 | Sep 17, 2021, 02:15 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Sep 15, 2021 | Sale | $75.42 | 7,564 | 570,450 | 6,164 | Sep 17, 2021, 02:15 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Sep 16, 2021 | Sale | $75.10 | 9,031 | 678,209 | 1,358 | Sep 17, 2021, 02:15 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Sep 16, 2021 | Sale | $75.11 | 7,865 | 590,712 | 100 | Sep 17, 2021, 02:15 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Aug 18, 2021 | Sale | $70.93 | 13,907 | 986,382 | 200 | Aug 19, 2021, 10:13 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Aug 18, 2021 | Sale | $70.95 | 9,721 | 689,666 | 0 | Aug 19, 2021, 10:13 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Aug 16, 2021 | Sale | $72.11 | 14,620 | 1,054,320 | 12,109 | Aug 18, 2021, 10:58 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Aug 17, 2021 | Sale | $71.10 | 7,279 | 517,559 | 0 | Aug 18, 2021, 10:58 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Aug 17, 2021 | Sale | $71.12 | 5,659 | 402,445 | 0 | Aug 18, 2021, 10:58 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Aug 16, 2021 | Sale | $72.12 | 18,814 | 1,356,910 | 15,661 | Aug 18, 2021, 10:58 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jul 19, 2021 | Sale | $64.98 | 11,180 | 726,514 | 9,880 | Jul 20, 2021, 02:40 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jul 19, 2021 | Sale | $64.95 | 4,742 | 307,998 | 4,042 | Jul 20, 2021, 02:40 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jul 16, 2021 | Sale | $65.21 | 14,994 | 977,817 | 7,617 | Jul 19, 2021, 11:34 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jul 16, 2021 | Sale | $65.22 | 13,081 | 853,131 | 6,834 | Jul 19, 2021, 11:34 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jul 15, 2021 | Sale | $66.03 | 13,826 | 912,880 | 3,057 | Jul 19, 2021, 11:34 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jul 15, 2021 | Sale | $66.02 | 12,177 | 803,927 | 2,500 | Jul 19, 2021, 11:34 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jun 17, 2021 | Sale | $62.99 | 9,940 | 626,110 | 200 | Jun 21, 2021, 08:41 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Jun 17, 2021 | Sale | $63.00 | 9,993 | 629,545 | 782 | Jun 21, 2021, 08:41 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 18, 2021 | Sale | $64.46 | 15,445 | 995,651 | 8,965 | May 19, 2021, 04:57 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 17, 2021 | Sale | $65.09 | 9,505 | 618,696 | 200 | May 19, 2021, 04:57 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 17, 2021 | Sale | $65.08 | 8,425 | 548,291 | 0 | May 19, 2021, 04:57 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 18, 2021 | Sale | $64.47 | 17,515 | 1,129,227 | 10,483 | May 19, 2021, 04:57 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | May 12, 2021 | Sale | $64.33 | 2,230 | 143,467 | 119,290 | May 13, 2021, 09:15 AM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Apr 15, 2021 | Sale | $63.30 | 30,000 | 1,899,113 | 22,168 | Apr 16, 2021, 01:29 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Apr 15, 2021 | Sale | $63.07 | 40,000 | 2,522,617 | 25,435 | Apr 16, 2021, 01:29 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 17, 2021 | Sale | $60.25 | 6,998 | 421,632 | 2,583 | Mar 18, 2021, 06:23 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 17, 2021 | Sale | $60.25 | 4,010 | 241,584 | 700 | Mar 18, 2021, 06:23 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 15, 2021 | Sale | $61.29 | 9,322 | 571,328 | 6,722 | Mar 17, 2021, 06:50 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 16, 2021 | Sale | $60.99 | 19,086 | 1,163,994 | 15,761 | Mar 17, 2021, 06:50 PM | |
| ALTR | Altair Engineering Inc. | Scapa James Ralph | Chief Executive Officer | Mar 16, 2021 | Sale | $61.02 | 16,668 | 1,017,057 | 6,641 | Mar 17, 2021, 06:50 PM |
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