Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2023-01-31 1:58 pm Sale | 2022-12-31 | 13G | Altair Engineering Inc. ALTR | BlackRock Inc. BLK | 4,056,464 7.700% | -483,070 (-10.64%) | Filing History |
| 2022-02-14 12:05 pm Purchase | 2021-12-31 | 13G | Altair Engineering Inc. ALTR | Matrix Capital Management Company LP | 8,600,000 16.930% | 3,444,975 (+66.83%) | Filing History |
| 2022-02-09 3:24 pm Purchase | 2021-12-31 | 13G | Altair Engineering Inc. ALTR | The Vanguard Group | 4,627,749 9.110% | 576,927 (+14.24%) | Filing History |
| 2022-02-08 4:52 pm Sale | 2021-12-31 | 13G | Altair Engineering Inc. ALTR | George J. Christ | 10,525,782 17.200% | -1,574,950 (-13.02%) | Filing History |
| 2022-02-08 4:51 pm Sale | 2021-12-31 | 13G | Altair Engineering Inc. ALTR | James Ralph Scapa | 17,343,713 25.500% | -735,838 (-4.07%) | Filing History |
| 2022-02-03 4:41 pm Purchase | 2021-12-31 | 13G | Altair Engineering Inc. ALTR | BlackRock Inc. BLK | 4,539,534 8.900% | 254,371 (+5.94%) | Filing History |
| 2021-02-16 10:00 am Purchase | 2020-12-31 | 13G | Altair Engineering Inc. ALTR | Matrix Capital Management Company LP | 5,155,025 11.920% | 2,762,300 (+115.45%) | Filing History |
| 2021-02-16 06:29 am Sale | 2020-12-31 | 13G | Altair Engineering Inc. ALTR | George J. Christ | 12,100,732 21.900% | -660,000 (-5.17%) | Filing History |
| 2021-02-16 06:26 am Sale | 2020-12-31 | 13G | Altair Engineering Inc. ALTR | James Ralph Scapa | 18,079,551 29.500% | -359,140 (-1.95%) | Filing History |
| 2021-02-11 10:30 am Sale | 2020-12-31 | 13G | Altair Engineering Inc. ALTR | Neuberger Berman Group LLC | 1,917,420 4.430% | -1,131,957 (-37.12%) | Filing History |
| 2021-02-10 10:30 am Purchase | 2020-12-31 | 13G | Altair Engineering Inc. ALTR | The Vanguard Group | 4,050,822 9.370% | 418,987 (+11.54%) | Filing History |
| 2021-01-28 5:56 pm Purchase | 2020-12-31 | 13G | Altair Engineering Inc. ALTR | BlackRock Inc. BLK | 4,285,163 9.900% | 1,042,429 (+32.15%) | Filing History |
| 2021-01-06 09:20 am Purchase | 2021-01-06 | 13G | Altair Engineering Inc. ALTR | Conestoga Capital Advisors LLC | 2,397,962 5.550% | 280,485 (+13.25%) | Filing History |