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
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- Peter Lynch
What is insider trading>>
| Reported DateTime |
Transaction Date |
Type | Company Symbol |
Filed By Symbol |
Shares Owned % Owned |
Shares Vs. Prev Report | View |
| 2025-04-07 4:15 pm Sale |
2025-03-31 | 13G | Altair Engineering Inc. ALTR |
Matrix Capital Management Company, LP | 0 0.000% |
-12,430,000 (Position Closed) |
Filing History |
| 2025-03-26 6:31 pm Sale |
2025-03-26 | 13G | Altair Engineering Inc. ALTR |
James Ralph Scapa | 0 0.000% |
-17,105,011 (Position Closed) |
Filing History |
| 2025-03-26 5:10 pm Sale |
2025-03-26 | 13G | Altair Engineering Inc. ALTR |
George J. Christ | 0 0.000% |
-9,450,684 (Position Closed) |
Filing History |
| 2025-02-05 1:23 pm Sale |
2024-12-31 | 13G | Altair Engineering Inc. ALTR |
BLACKROCK INC BLK |
7,478,856 12.500% |
-398,254 (-5.06%) |
Filing History |
| 2024-11-21 06:07 am Purchase |
2024-11-21 | 13G | Altair Engineering Inc. ALTR |
PICTET ASSET MANAGEMENT SA | 2,275,256 3.800% |
2,274,286 (+234462.47%) |
Filing History |
| 2024-11-13 09:09 am Purchase |
2024-09-30 | 13G | Altair Engineering Inc. ALTR |
Matrix Capital Management Company, LP | 12,430,000 20.900% |
196,826 (+1.61%) |
Filing History |
| 2024-11-08 4:44 pm Sale |
2024-09-30 | 13G | Altair Engineering Inc. ALTR |
James Ralph Scapa | 17,105,011 22.300% |
-11,555 (-0.07%) |
Filing History |
| 2024-11-08 4:34 pm Sale |
2024-09-30 | 13G | Altair Engineering Inc. ALTR |
George J. Christ | 9,450,684 13.900% |
-750,048 (-7.35%) |
Filing History |
| 2024-07-08 4:32 pm Purchase |
2024-06-30 | 13G | Altair Engineering Inc. ALTR |
BLACKROCK INC BLK |
7,877,110 13.800% |
3,288,603 (+71.67%) |
Filing History |
| 2024-02-13 4:58 pm Purchase |
2023-12-29 | 13G | Altair Engineering Inc. ALTR |
The Vanguard Group | 5,761,445 10.550% |
354,040 (+6.55%) |
Filing History |
| 2024-02-13 4:15 pm Purchase |
2023-12-31 | 13G | Altair Engineering Inc. ALTR |
Matrix Capital Management Company, LP | 12,233,174 22.400% |
1,362,174 (+12.53%) |
Filing History |
| 2024-02-13 3:48 pm Sale |
2023-12-31 | 13G | Altair Engineering Inc. ALTR |
James Ralph Scapa | 17,116,566 23.900% |
-237,626 (-1.37%) |
Filing History |
| 2024-02-13 3:45 pm Sale |
2023-12-31 | 13G | Altair Engineering Inc. ALTR |
George J. Christ | 10,200,732 15.800% |
-700,000 (-6.42%) |
Filing History |
| 2024-01-31 08:54 am Purchase |
2023-12-29 | 13G | Altair Engineering Inc. ALTR |
PICTET ASSET MANAGEMENT SA | 970 5.300% |
970 (New Position) |
Filing History |
| 2024-01-25 4:59 pm Purchase |
2023-12-31 | 13G | Altair Engineering Inc. ALTR |
BLACKROCK INC BLK |
4,588,507 8.400% |
532,043 (+13.12%) |
Filing History |
| 2023-06-09 2:15 pm Purchase |
2023-05-31 | 13G | Altair Engineering Inc. ALTR |
The Vanguard Group | 5,407,405 10.120% |
202,241 (+3.89%) |
Filing History |
| 2023-02-13 4:05 pm Purchase |
2022-12-31 | 13G | Altair Engineering Inc. ALTR |
Matrix Capital Management Company, LP | 10,871,000 20.750% |
2,271,000 (+26.41%) |
Filing History |
| 2023-02-09 11:07 am Purchase |
2022-12-30 | 13G | Altair Engineering Inc. ALTR |
The Vanguard Group | 5,205,164 9.930% |
577,415 (+12.48%) |
Filing History |
| 2023-02-06 09:16 am Purchase |
2022-12-31 | 13G | Altair Engineering Inc. ALTR |
George J. Christ | 10,900,732 17.200% |
374,950 (+3.56%) |
Filing History |
| 2023-02-06 09:13 am Purchase |
2022-12-31 | 13G | Altair Engineering Inc. ALTR |
James Ralph Scapa | 17,354,192 24.900% |
10,479 (+0.06%) |
Filing History |