Scapa James Ralph
Insider CIK 1720314 · ALTR Chief Executive Officer, Director, 10% owner
Trades across companies
| Ticker | Code | Trade | Filed | Shares | Price | Value | Owned after | |
|---|---|---|---|---|---|---|---|---|
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 40,000 | $51.07 | $2.04M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 10,695 | $107.82 | $1.15M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 15,000 | $74.89 | $1.12M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 10,241,110 | $113.00 | $1.16B | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 123,000 | $33.97 | $4.18M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 114,000 | $47.81 | $5.45M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 80,000 | $48.46 | $3.88M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 6,626,682 | $113.00 | $748.82M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer deriv | 2025-03-26 | 2025-03-26 | 40,000 | $82.85 | $3.31M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer | 2025-03-26 | 2025-03-26 | 190,505 | $113.00 | $21.53M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | D To issuer | 2025-03-26 | 2025-03-26 | 1,184 | $113.00 | $133.8K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2025-03-17 | 2025-03-19 | 9 | $111.30 | $1.0K | 1,184 | SEC↗ |
| ALTR Altair Engineering Inc. | A Award | 2025-02-12 | 2025-02-14 | 72,555 | — | $0 | 190,505 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-12-03 | 2024-12-05 | 16,095 | $105.65 | $1.70M | 117,950 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-11-29 | 2024-12-02 | 6,500 | — | $0 | 6,626,682 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-11-29 | 2024-12-02 | 6,500 | — | $0 | 10,241,110 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-11-29 | 2024-12-02 | 6,500 | $105.69 | $687.0K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-11-29 | 2024-12-02 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-11-29 | 2024-12-02 | 6,500 | $105.69 | $687.0K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-11-29 | 2024-12-02 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-10-28 | 2024-10-29 | 6,500 | — | $0 | 10,247,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-10-28 | 2024-10-29 | 6,500 | — | $0 | 6,633,182 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-10-28 | 2024-10-29 | 2,522 | $103.19 | $260.2K | 296 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-10-28 | 2024-10-29 | 3,682 | $102.08 | $375.9K | 2,818 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-10-28 | 2024-10-29 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-10-28 | 2024-10-29 | 295 | $103.84 | $30.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-10-28 | 2024-10-29 | 2,522 | $103.19 | $260.2K | 295 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-10-28 | 2024-10-29 | 296 | $103.84 | $30.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-10-28 | 2024-10-29 | 3,683 | $102.08 | $376.0K | 2,817 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-10-28 | 2024-10-29 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-09-30 | 2024-10-01 | 6,500 | — | $0 | 6,639,682 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-09-30 | 2024-10-01 | 6,500 | — | $0 | 10,254,110 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-09-30 | 2024-10-01 | 928 | $95.55 | $88.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-09-30 | 2024-10-01 | 5,572 | $95.03 | $529.5K | 928 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-09-30 | 2024-10-01 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-09-30 | 2024-10-01 | 928 | $95.55 | $88.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-09-30 | 2024-10-01 | 5,572 | $95.03 | $529.5K | 928 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-09-30 | 2024-10-01 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-08-28 | 2024-08-29 | 6,500 | — | $0 | 6,646,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-08-28 | 2024-08-29 | 6,500 | — | $0 | 10,260,610 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-08-28 | 2024-08-29 | 1,490 | $89.53 | $133.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-08-28 | 2024-08-29 | 5,010 | $88.89 | $445.3K | 1,490 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-08-28 | 2024-08-29 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-08-28 | 2024-08-29 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-08-28 | 2024-08-29 | 5,010 | $88.89 | $445.3K | 1,490 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-08-28 | 2024-08-29 | 1,490 | $89.53 | $133.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-07-29 | 2024-07-30 | 6,500 | — | $0 | 6,652,682 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-07-29 | 2024-07-30 | 6,500 | — | $0 | 10,267,110 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-07-29 | 2024-07-30 | 5,017 | $87.96 | $441.3K | 1,483 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-07-29 | 2024-07-30 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-07-29 | 2024-07-30 | 1,483 | $88.60 | $131.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-07-29 | 2024-07-30 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-07-29 | 2024-07-30 | 5,016 | $87.96 | $441.2K | 1,484 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-07-29 | 2024-07-30 | 1,484 | $88.60 | $131.5K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-06-28 | 2024-07-01 | 6,500 | — | $0 | 10,273,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-06-28 | 2024-07-01 | 6,500 | — | $0 | 6,659,182 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-28 | 2024-07-01 | 900 | $99.57 | $89.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-06-28 | 2024-07-01 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-28 | 2024-07-01 | 3,839 | $97.77 | $375.3K | 2,661 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-28 | 2024-07-01 | 1,761 | $98.67 | $173.8K | 900 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-06-28 | 2024-07-01 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-28 | 2024-07-01 | 900 | $99.57 | $89.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-28 | 2024-07-01 | 1,762 | $98.67 | $173.9K | 900 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-28 | 2024-07-01 | 3,838 | $97.77 | $375.2K | 2,662 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-06-10 | 2024-06-11 | 6,500 | — | $0 | 10,280,110 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-06-10 | 2024-06-11 | 6,500 | — | $0 | 6,665,682 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-10 | 2024-06-11 | 4,950 | $93.28 | $461.7K | 100 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-10 | 2024-06-11 | 100 | $94.19 | $9.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-10 | 2024-06-11 | 1,450 | $92.71 | $134.4K | 5,050 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-06-10 | 2024-06-11 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-10 | 2024-06-11 | 100 | $94.19 | $9.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-10 | 2024-06-11 | 4,950 | $93.28 | $461.7K | 100 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-06-10 | 2024-06-11 | 1,450 | $92.71 | $134.4K | 5,050 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-06-10 | 2024-06-11 | 6,500 | — | $0 | 6,500 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-05-08 | 2024-05-10 | 9 | $84.38 | $759 | 1,193 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-05-08 | 2024-05-10 | 5,560 | $84.37 | $469.1K | 134,045 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-03-18 | 2024-03-19 | 5,000 | — | $0 | 10,286,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-03-18 | 2024-03-19 | 5,000 | — | $0 | 6,672,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-03-18 | 2024-03-19 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-03-18 | 2024-03-19 | 4,500 | $80.84 | $363.8K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-03-18 | 2024-03-19 | 500 | $79.87 | $39.9K | 4,500 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-03-18 | 2024-03-19 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-03-18 | 2024-03-19 | 4,500 | $80.84 | $363.8K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-03-18 | 2024-03-19 | 500 | $79.87 | $39.9K | 4,500 | SEC↗ |
| ALTR Altair Engineering Inc. | A Award deriv | 2024-03-15 | 2024-03-19 | 123,000 | — | $0 | 123,000 | SEC↗ |
| ALTR Altair Engineering Inc. | A Award | 2024-03-15 | 2024-03-19 | 41,000 | — | $0 | 139,605 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-03-13 | 2024-03-14 | 93 | $81.66 | $7.6K | 1,202 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-03-13 | 2024-03-14 | 1,686 | $81.66 | $137.7K | 98,605 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-03-04 | 2024-03-05 | 3,300 | $85.32 | $281.6K | 100,291 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-02-16 | 2024-02-20 | 5,000 | — | $0 | 6,677,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-02-16 | 2024-02-20 | 5,000 | — | $0 | 10,291,610 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-02-16 | 2024-02-20 | 2,790 | $91.35 | $254.9K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-02-16 | 2024-02-20 | 2,210 | $90.72 | $200.5K | 2,790 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-02-16 | 2024-02-20 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-02-16 | 2024-02-20 | 2,211 | $90.72 | $200.6K | 2,789 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-02-16 | 2024-02-20 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-02-16 | 2024-02-20 | 2,789 | $91.35 | $254.8K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-01-16 | 2024-01-18 | 5,000 | — | $0 | 6,682,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2024-01-16 | 2024-01-18 | 5,000 | — | $0 | 10,296,610 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-01-16 | 2024-01-18 | 2,096 | $83.48 | $175.0K | 2,904 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-01-16 | 2024-01-18 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-01-16 | 2024-01-18 | 2,904 | $83.91 | $243.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2024-01-16 | 2024-01-18 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-01-16 | 2024-01-18 | 2,095 | $83.48 | $174.9K | 2,905 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2024-01-16 | 2024-01-18 | 2,905 | $83.91 | $243.8K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-12-18 | 2023-12-19 | 5,000 | — | $0 | 6,687,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-12-18 | 2023-12-19 | 5,000 | — | $0 | 10,301,610 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-12-18 | 2023-12-19 | 4,932 | $74.11 | $365.5K | 68 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-12-18 | 2023-12-19 | 68 | $74.58 | $5.1K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-12-18 | 2023-12-19 | 4,933 | $74.11 | $365.6K | 67 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-12-18 | 2023-12-19 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-12-18 | 2023-12-19 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-12-18 | 2023-12-19 | 67 | $74.58 | $5.0K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-11-16 | 2023-11-17 | 5,000 | — | $0 | 6,692,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-11-16 | 2023-11-17 | 5,000 | — | $0 | 10,306,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-11-16 | 2023-11-17 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-11-16 | 2023-11-17 | 947 | $71.74 | $67.9K | 4,053 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-11-16 | 2023-11-17 | 3,253 | $72.48 | $235.8K | 800 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-11-16 | 2023-11-17 | 800 | $73.60 | $58.9K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-11-16 | 2023-11-17 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-11-16 | 2023-11-17 | 947 | $71.74 | $67.9K | 4,053 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-11-16 | 2023-11-17 | 3,253 | $72.48 | $235.8K | 800 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-11-16 | 2023-11-17 | 800 | $73.60 | $58.9K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-10-16 | 2023-10-17 | 5,000 | — | $0 | 10,311,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-10-16 | 2023-10-17 | 5,000 | — | $0 | 6,697,182 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-10-16 | 2023-10-17 | 3,348 | $65.44 | $219.1K | 350 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-10-16 | 2023-10-17 | 1,302 | $64.48 | $84.0K | 3,698 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-10-16 | 2023-10-17 | 350 | $66.05 | $23.1K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-10-16 | 2023-10-17 | 3,348 | $65.44 | $219.1K | 350 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-10-16 | 2023-10-17 | 1,302 | $64.48 | $84.0K | 3,698 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-10-16 | 2023-10-17 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-10-16 | 2023-10-17 | 350 | $66.05 | $23.1K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-10-16 | 2023-10-17 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-09-18 | 2023-09-19 | 5,000 | — | $0 | 10,316,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-09-18 | 2023-09-19 | 5,000 | — | $0 | 6,702,182 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-09-18 | 2023-09-19 | 5,000 | $65.29 | $326.5K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-09-18 | 2023-09-19 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-09-18 | 2023-09-19 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-09-18 | 2023-09-19 | 5,000 | $65.29 | $326.5K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-08-16 | 2023-08-17 | 5,000 | — | $0 | 6,707,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-08-16 | 2023-08-17 | 5,000 | — | $0 | 10,321,610 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-08-16 | 2023-08-17 | 5,000 | $62.47 | $312.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-08-16 | 2023-08-17 | 5,000 | $62.47 | $312.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-08-16 | 2023-08-17 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-08-16 | 2023-08-17 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-07-17 | 2023-07-18 | 5,000 | — | $0 | 6,712,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-07-17 | 2023-07-18 | 5,000 | — | $0 | 10,326,610 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-07-17 | 2023-07-18 | 2,601 | $75.14 | $195.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-07-17 | 2023-07-18 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-07-17 | 2023-07-18 | 2,399 | $74.66 | $179.1K | 2,601 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-07-17 | 2023-07-18 | 2,601 | $75.14 | $195.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-07-17 | 2023-07-18 | 2,399 | $74.66 | $179.1K | 2,601 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-07-17 | 2023-07-18 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-06-16 | 2023-06-20 | 5,000 | — | $0 | 6,717,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-06-16 | 2023-06-20 | 5,000 | — | $0 | 10,331,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-06-16 | 2023-06-20 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-06-16 | 2023-06-20 | 3,600 | $75.00 | $270.0K | 1,400 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-06-16 | 2023-06-20 | 1,400 | $75.63 | $105.9K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-06-16 | 2023-06-20 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-06-16 | 2023-06-20 | 1,400 | $75.63 | $105.9K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-06-16 | 2023-06-20 | 3,600 | $75.00 | $270.0K | 1,400 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-06-06 | 2023-06-07 | 9,267 | $74.30 | $688.5K | 103,591 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-05-16 | 2023-05-17 | 5,000 | — | $0 | 10,336,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-05-16 | 2023-05-17 | 5,000 | — | $0 | 6,722,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-05-16 | 2023-05-17 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-05-16 | 2023-05-17 | 5,000 | $67.94 | $339.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-05-16 | 2023-05-17 | 5,000 | $67.94 | $339.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-05-16 | 2023-05-17 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-05-12 | 2023-05-15 | 548 | $67.40 | $36.9K | 112,858 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-05-10 | 2023-05-11 | 5,358 | $67.82 | $363.4K | 113,406 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-04-17 | 2023-04-18 | 5,000 | — | $0 | 10,341,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-04-17 | 2023-04-18 | 5,000 | — | $0 | 6,727,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-04-17 | 2023-04-18 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-04-17 | 2023-04-18 | 5,000 | — | $0 | 5,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-04-17 | 2023-04-18 | 291 | $71.08 | $20.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-04-17 | 2023-04-18 | 4,709 | $70.28 | $330.9K | 291 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-04-17 | 2023-04-18 | 4,709 | $70.28 | $330.9K | 291 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-04-17 | 2023-04-18 | 291 | $71.08 | $20.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-03-16 | 2023-03-17 | 109 | $64.97 | $7.1K | 1,295 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-03-16 | 2023-03-17 | 1,784 | $64.97 | $115.9K | 118,764 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-03-15 | 2023-03-16 | 15,000 | — | $0 | 6,732,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-03-15 | 2023-03-16 | 20,000 | — | $0 | 10,346,610 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-03-15 | 2023-03-16 | 8,676 | $66.49 | $576.9K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-03-15 | 2023-03-16 | 15,000 | — | $0 | 15,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-03-15 | 2023-03-16 | 8,493 | $65.91 | $559.8K | 6,507 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-03-15 | 2023-03-16 | 6,507 | $66.49 | $432.7K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-03-15 | 2023-03-16 | 11,324 | $65.91 | $746.4K | 8,676 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-03-15 | 2023-03-16 | 20,000 | — | $0 | 20,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-03-13 | 2023-03-15 | 91 | $62.49 | $5.7K | 1,404 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-03-13 | 2023-03-15 | 1,414 | $62.49 | $88.4K | 120,548 | SEC↗ |
| ALTR Altair Engineering Inc. | A Award deriv | 2023-03-02 | 2023-03-08 | 114,000 | — | $0 | 114,000 | SEC↗ |
| ALTR Altair Engineering Inc. | A Award | 2023-03-02 | 2023-03-08 | 38,000 | — | $0 | 121,962 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-02-15 | 2023-02-16 | 20,000 | — | $0 | 10,366,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-02-15 | 2023-02-16 | 15,000 | — | $0 | 6,747,182 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-02-15 | 2023-02-16 | 3,396 | $58.15 | $197.5K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-02-15 | 2023-02-16 | 12,453 | $57.60 | $717.3K | 2,547 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-02-15 | 2023-02-16 | 15,000 | — | $0 | 15,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-02-15 | 2023-02-16 | 2,547 | $58.15 | $148.1K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-02-15 | 2023-02-16 | 16,604 | $57.60 | $956.4K | 3,396 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-02-15 | 2023-02-16 | 20,000 | — | $0 | 20,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-01-17 | 2023-01-19 | 15,000 | — | $0 | 6,762,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-01-17 | 2023-01-19 | 20,000 | — | $0 | 10,386,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-01-17 | 2023-01-19 | 15,000 | — | $0 | 15,000 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-01-17 | 2023-01-19 | 20,000 | — | $0 | 20,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-01-17 | 2023-01-19 | 20,000 | $49.91 | $998.2K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-01-17 | 2023-01-19 | 15,000 | $49.91 | $748.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-01-09 | 2023-01-10 | 20,000 | — | $0 | 10,406,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2023-01-09 | 2023-01-10 | 15,000 | — | $0 | 6,777,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-01-09 | 2023-01-10 | 15,000 | — | $0 | 15,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-01-09 | 2023-01-10 | 217 | $49.05 | $10.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2023-01-09 | 2023-01-10 | 20,000 | — | $0 | 20,000 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-01-09 | 2023-01-10 | 19,711 | $48.44 | $954.8K | 289 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-01-09 | 2023-01-10 | 289 | $49.05 | $14.2K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2023-01-09 | 2023-01-10 | 14,783 | $48.44 | $716.1K | 217 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-11-16 | 2022-11-17 | 19,262 | $49.52 | $953.9K | 83,962 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-11-15 | 2022-11-17 | 57,915 | $49.97 | $2.89M | 103,224 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-05-12 | 2022-05-13 | 2,520 | $49.31 | $124.3K | 161,139 | SEC↗ |
| ALTR Altair Engineering Inc. | A Award | 2022-05-11 | 2022-05-12 | 4,390 | — | $0 | 163,659 | SEC↗ |
| ALTR Altair Engineering Inc. | A Award deriv | 2022-03-22 | 2022-03-23 | 80,000 | — | $0 | 80,000 | SEC↗ |
| ALTR Altair Engineering Inc. | A Award | 2022-03-22 | 2022-03-23 | 23,000 | — | $0 | 159,269 | SEC↗ |
| ALTR Altair Engineering Inc. | M Exercise deriv | 2022-03-16 | 2022-03-18 | 19,305 | — | $0 | 10,695 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-03-16 | 2022-03-18 | 22 | $59.99 | $1.3K | 136,269 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-03-16 | 2022-03-18 | 1,738 | $58.48 | $101.6K | 136,291 | SEC↗ |
| ALTR Altair Engineering Inc. | M Exercise | 2022-03-16 | 2022-03-18 | 19,305 | — | $0 | 138,029 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-03-16 | 2022-03-18 | 1 | $59.86 | $60 | 1,495 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-03-16 | 2022-03-18 | 106 | $58.48 | $6.2K | 1,496 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-03-14 | 2022-03-16 | 1,406 | $59.96 | $84.3K | 118,724 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-03-14 | 2022-03-18 | 92 | $59.96 | $5.5K | 1,602 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2022-03-07 | 2022-03-09 | 1,791 | $64.55 | $115.6K | 120,130 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-12-15 | 2021-12-17 | 23,669 | — | $0 | 10,426,610 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-12-15 | 2021-12-17 | 19,140 | — | $0 | 6,792,182 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-12-15 | 2021-12-17 | 9,112 | $72.32 | $659.0K | 484 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-12-15 | 2021-12-17 | 7,696 | $71.13 | $547.4K | 9,596 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-12-15 | 2021-12-17 | 6,377 | $70.10 | $447.0K | 17,292 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-12-15 | 2021-12-17 | 23,669 | — | $0 | 23,669 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-12-15 | 2021-12-17 | 400 | $72.73 | $29.1K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-12-15 | 2021-12-17 | 7,126 | $72.32 | $515.4K | 400 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-12-15 | 2021-12-17 | 6,637 | $71.11 | $472.0K | 7,526 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-12-15 | 2021-12-17 | 4,977 | $70.07 | $348.7K | 14,163 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-12-15 | 2021-12-17 | 19,140 | — | $0 | 19,140 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-12-15 | 2021-12-17 | 484 | $72.73 | $35.2K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-11-17 | 2021-11-19 | 9,867 | — | $0 | 10,450,279 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-11-17 | 2021-11-19 | 8,860 | — | $0 | 6,811,322 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-11-17 | 2021-11-19 | 9,867 | — | $0 | 9,867 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-17 | 2021-11-19 | 9,867 | $78.27 | $772.3K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-17 | 2021-11-19 | 8,860 | $78.27 | $693.5K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-11-17 | 2021-11-19 | 8,860 | — | $0 | 8,860 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-11-16 | 2021-11-17 | 8,099 | — | $0 | 10,460,146 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-11-16 | 2021-11-17 | 7,075 | — | $0 | 6,820,182 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-11-16 | 2021-11-17 | 7,075 | — | $0 | 7,075 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-16 | 2021-11-17 | 4,294 | $79.33 | $340.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-16 | 2021-11-17 | 3,805 | $78.86 | $300.1K | 4,294 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-11-16 | 2021-11-17 | 8,099 | — | $0 | 8,099 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-16 | 2021-11-17 | 3,860 | $79.35 | $306.3K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-16 | 2021-11-17 | 3,215 | $78.88 | $253.6K | 3,860 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-11-15 | 2021-11-17 | 6,747 | — | $0 | 6,827,257 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-11-15 | 2021-11-17 | 7,751 | — | $0 | 10,468,245 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-15 | 2021-11-17 | 100 | $78.40 | $7.8K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-15 | 2021-11-17 | 6,647 | $77.74 | $516.7K | 100 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-11-15 | 2021-11-17 | 6,747 | — | $0 | 6,747 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-15 | 2021-11-17 | 7,616 | $77.75 | $592.1K | 135 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-11-15 | 2021-11-17 | 7,751 | — | $0 | 7,751 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-11-15 | 2021-11-17 | 135 | $78.36 | $10.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-10-19 | 2021-10-21 | 9,076 | — | $0 | 6,834,004 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-10-19 | 2021-10-21 | 11,955 | — | $0 | 10,475,996 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-19 | 2021-10-21 | 806 | $73.31 | $59.1K | 8,270 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-10-19 | 2021-10-21 | 9,076 | — | $0 | 9,076 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-10-19 | 2021-10-21 | 11,955 | — | $0 | 11,955 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-19 | 2021-10-21 | 3,760 | $73.76 | $277.3K | 8,195 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-19 | 2021-10-21 | 8,195 | $74.27 | $608.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-19 | 2021-10-21 | 8,270 | $74.23 | $613.9K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-10-18 | 2021-10-19 | 10,756 | — | $0 | 6,843,080 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-10-18 | 2021-10-19 | 14,597 | — | $0 | 10,487,951 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-18 | 2021-10-19 | 14,097 | $73.69 | $1.04M | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-18 | 2021-10-19 | 500 | $72.85 | $36.4K | 14,097 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-10-18 | 2021-10-19 | 14,597 | — | $0 | 14,597 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-10-18 | 2021-10-19 | 10,756 | — | $0 | 10,756 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-18 | 2021-10-19 | 10,456 | $73.68 | $770.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-18 | 2021-10-19 | 300 | $72.71 | $21.8K | 10,456 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-10-15 | 2021-10-19 | 13,448 | — | $0 | 10,502,548 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-10-15 | 2021-10-19 | 10,168 | — | $0 | 6,853,836 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-15 | 2021-10-19 | 4,346 | $73.95 | $321.4K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-15 | 2021-10-19 | 5,822 | $73.07 | $425.4K | 4,346 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-10-15 | 2021-10-19 | 10,168 | — | $0 | 10,168 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-15 | 2021-10-19 | 6,826 | $73.91 | $504.5K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-10-15 | 2021-10-19 | 6,622 | $73.01 | $483.5K | 6,826 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-10-15 | 2021-10-19 | 13,448 | — | $0 | 13,448 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-09-17 | 2021-09-20 | 14,571 | — | $0 | 6,864,004 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-09-17 | 2021-09-20 | 22,151 | — | $0 | 10,515,996 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-09-17 | 2021-09-20 | 2,600 | $75.23 | $195.6K | 100 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-09-17 | 2021-09-20 | 14,571 | — | $0 | 14,571 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-09-17 | 2021-09-20 | 11,871 | $74.55 | $885.0K | 2,700 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-09-17 | 2021-09-20 | 100 | $76.11 | $7.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-09-17 | 2021-09-20 | 22,151 | — | $0 | 22,151 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-09-17 | 2021-09-20 | 18,126 | $74.55 | $1.35M | 4,025 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-09-17 | 2021-09-20 | 3,925 | $75.17 | $295.0K | 100 | SEC↗ |
| ALTR Altair Engineering Inc. | S Sale | 2021-09-17 | 2021-09-20 | 100 | $76.11 | $7.6K | 0 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-09-16 | 2021-09-17 | 9,031 | — | $0 | 10,538,147 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion deriv | 2021-09-16 | 2021-09-17 | 7,865 | — | $0 | 6,878,575 | SEC↗ |
| ALTR Altair Engineering Inc. | C Conversion | 2021-09-16 | 2021-09-17 | 9,031 | — | $0 | 9,031 | SEC↗ |