| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Mar 16, 2021 | Sale | $60.42 | 388 | 23,442 | 6,590 | Mar 18, 2021, 04:12 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Mar 12, 2021 | Sale | $59.52 | 245 | 14,582 | 4,885 | Mar 16, 2021, 08:36 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Mar 10, 2021 | Sale | $61.57 | 4,000 | 246,294 | 289,768 | Mar 11, 2021, 09:12 AM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Mar 04, 2021 | Sale | $61.51 | 262 | 16,114 | 5,130 | Mar 08, 2021, 07:24 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Feb 17, 2021 | Sale | $63.51 | 4,000 | 254,046 | 294,665 | Feb 18, 2021, 08:22 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jan 13, 2021 | Sale | $62.06 | 4,000 | 248,229 | 298,255 | Jan 15, 2021, 01:17 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Dec 16, 2020 | Sale | $57.12 | 4,000 | 228,468 | 301,555 | Dec 18, 2020, 06:46 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Nov 11, 2020 | Sale | $49.05 | 4,000 | 196,196 | 305,555 | Nov 13, 2020, 05:12 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Oct 14, 2020 | Sale | $46.54 | 4,000 | 186,164 | 309,855 | Oct 16, 2020, 02:22 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Sep 17, 2020 | Sale | $39.77 | 4,000 | 159,080 | 316,955 | Sep 21, 2020, 12:09 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Aug 13, 2020 | Sale | $40.24 | 4,000 | 160,964 | 317,755 | Aug 14, 2020, 06:48 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jul 16, 2020 | Sale | $37.16 | 4,000 | 148,644 | 321,555 | Jul 16, 2020, 08:48 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jun 16, 2020 | Sale | $38.21 | 4,000 | 152,840 | 325,555 | Jun 18, 2020, 03:30 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jun 10, 2020 | Option Exercise | $4.99 | 7,774 | 38,779 | 13,166 | Jun 12, 2020, 03:37 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | May 18, 2020 | Sale | $33.31 | 4,000 | 133,260 | 321,781 | May 20, 2020, 12:06 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Apr 29, 2020 | Sale | $32.79 | 4,000 | 131,180 | 325,781 | Apr 30, 2020, 02:34 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Mar 03, 2020 | Sale | $34.97 | 4,000 | 139,892 | 328,438 | Mar 04, 2020, 08:26 AM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jan 08, 2020 | Option Exercise | $3.84 | 756 | 2,903 | 5,606 | Feb 06, 2020, 11:13 AM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Feb 04, 2020 | Sale | $38.85 | 4,000 | 155,396 | 332,438 | Feb 06, 2020, 11:13 AM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Dec 17, 2019 | Sale | $34.17 | 4,000 | 136,696 | 335,682 | Dec 18, 2019, 04:26 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Nov 26, 2019 | Sale | $32.77 | 4,000 | 131,064 | 339,682 | Nov 29, 2019, 11:20 AM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Oct 17, 2019 | Sale | $34.77 | 4,000 | 139,084 | 343,682 | Oct 21, 2019, 09:05 AM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Sep 17, 2019 | Sale | $34.22 | 4,000 | 136,890 | 347,682 | Sep 19, 2019, 04:24 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Aug 19, 2019 | Sale | $34.90 | 4,000 | 139,616 | 351,682 | Aug 21, 2019, 04:37 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jul 17, 2019 | Sale | $41.81 | 4,000 | 167,260 | 355,682 | Jul 18, 2019, 03:28 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jun 17, 2019 | Sale | $37.52 | 4,000 | 150,096 | 359,164 | Jun 19, 2019, 10:26 AM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jun 10, 2019 | Option Exercise | $4.99 | 7,774 | 38,779 | 13,142 | Jun 12, 2019, 07:20 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | May 17, 2019 | Sale | $36.14 | 4,000 | 144,548 | 355,390 | May 21, 2019, 04:51 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Apr 17, 2019 | Sale | $36.63 | 4,000 | 146,513 | 359,690 | Apr 18, 2019, 11:57 AM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Dec 21, 2018 | Option Exercise | $3.81 | 1,621 | 6,181 | 3,691 | Dec 21, 2018, 04:30 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jun 20, 2018 | Option Exercise | $3.27 | 32,849 | 107,543 | 34,919 | Jun 22, 2018, 04:05 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jun 11, 2018 | Sale | $13.52 | 588,548 | 7,958,049 | 380,618 | Jun 11, 2018, 04:17 PM | |
| ALTR | Altair Engineering Inc. | Morof Howard N | Chief Financial Officer | Jan 23, 2018 | Option Exercise | $2.48 | 20,372 | 50,523 | 20,372 | Jan 24, 2018, 12:25 PM |
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