| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 13, 2024 | Sale | $81.66 | 112 | 9,145 | 14,611 | Mar 14, 2024, 04:03 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 04, 2024 | Sale | $85.32 | 291 | 24,828 | 14,723 | Mar 05, 2024, 02:31 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Feb 28, 2024 | Sale | $83.65 | 236 | 19,742 | 15,014 | Feb 29, 2024, 03:47 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Aug 09, 2023 | Sale | $61.88 | 360 | 22,277 | 15,250 | Aug 10, 2023, 03:17 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Jul 14, 2023 | Option Exercise | $42.65 | 140 | 5,971 | 15,610 | Jul 17, 2023, 02:10 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Jun 09, 2023 | Sale | $74.63 | 109 | 8,134 | 15,470 | Jun 12, 2023, 07:47 AM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 16, 2023 | Sale | $64.97 | 155 | 10,070 | 15,579 | Mar 17, 2023, 02:16 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 13, 2023 | Sale | $62.49 | 114 | 7,124 | 15,734 | Mar 15, 2023, 04:29 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 01, 2023 | Sale | $63.84 | 519 | 33,133 | 12,504 | Mar 03, 2023, 01:20 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Jan 14, 2023 | Option Exercise | $42.31 | 142 | 6,008 | 12,825 | Jan 18, 2023, 12:15 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Nov 09, 2022 | Sale | $45.91 | 363 | 16,667 | 12,683 | Nov 10, 2022, 11:12 AM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Jul 14, 2022 | Option Exercise | $41.68 | 145 | 6,044 | 13,046 | Jul 18, 2022, 10:10 AM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Aug 16, 2021 | Sale | $71.68 | 549 | 39,352 | 13,054 | Mar 18, 2022, 12:59 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 16, 2022 | Sale | $58.50 | 153 | 8,950 | 12,903 | Mar 18, 2022, 12:59 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 14, 2022 | Sale | $59.96 | 115 | 6,895 | 13,603 | Mar 15, 2022, 09:11 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 07, 2022 | Sale | $64.55 | 396 | 25,561 | 10,968 | Mar 09, 2022, 08:43 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Jan 14, 2022 | Option Exercise | $54.57 | 109 | 5,948 | 11,364 | Jan 19, 2022, 02:55 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 12, 2021 | Sale | $59.49 | 203 | 12,077 | 9,162 | Mar 16, 2021, 06:50 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Mar 04, 2021 | Sale | $61.51 | 570 | 35,060 | 9,365 | Mar 08, 2021, 07:43 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Marketing Officer | Aug 12, 2020 | Sale | $39.98 | 529 | 21,149 | 9,935 | Aug 14, 2020, 04:45 PM | |
| ALTR | Altair Engineering Inc. | Messano Amy | Chief Administrative Officer | Mar 09, 2020 | Sale | $28.83 | 599 | 17,270 | 8,901 | Mar 11, 2020, 07:04 PM |
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