| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Jul 14, 2022 | Option Exercise | $41.68 | 30 | 1,250 | 26,745 | Jul 18, 2022, 06:42 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 09, 2020 | Sale | $28.83 | 97 | 2,796 | 25,778 | Apr 22, 2022, 08:25 AM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 16, 2022 | Sale | $58.50 | 273 | 15,971 | 24,730 | Mar 18, 2022, 11:36 AM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 14, 2022 | Sale | $59.96 | 88 | 5,277 | 24,999 | Mar 15, 2022, 09:02 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 07, 2022 | Sale | $64.55 | 91 | 5,874 | 23,387 | Mar 09, 2022, 08:45 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Jan 14, 2022 | Option Exercise | $54.57 | 21 | 1,146 | 23,478 | Jan 19, 2022, 03:00 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 16, 2021 | Sale | $60.43 | 168 | 10,152 | 23,457 | Mar 18, 2021, 04:10 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 12, 2021 | Sale | $59.52 | 91 | 5,417 | 21,950 | Mar 16, 2021, 06:57 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 04, 2021 | Sale | $61.51 | 92 | 5,659 | 22,041 | Mar 08, 2021, 07:23 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Aug 24, 2020 | Sale | $41.44 | 2,500 | 103,593 | 22,133 | Aug 25, 2020, 01:43 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 16, 2020 | Sale | $24.61 | 168 | 4,135 | 24,633 | Mar 18, 2020, 03:37 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 09, 2020 | Sale | $28.83 | 97 | 2,796 | 23,789 | Mar 11, 2020, 06:58 PM | |
| ALTR | Altair Engineering Inc. | Simon David L | Chief Administrative Officer | Mar 06, 2019 | Sale | $35.64 | 84 | 2,994 | 23,951 | Jun 05, 2019, 09:18 PM |
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