Altair Engineering Inc.
Total Trades
257
Buys
0
Sells
221
Largest Trade
N/A
Insiders
20
Institutional Funds
1
Inst. Value
$1K–$15K
Activist Filings
19
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 15K | $48.45 | Jan 10, 2023 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $500K+ | 20K | $48.45 | Jan 10, 2023 |
| Dias Nelson | Chief Revenue Offi… | EXERCISE | $1K–$15K | 4K | $2.48 | Nov 25, 2022 |
| Dias Nelson | Chief Revenue Offi… | SELL | $100K–$500K | 4K | $47.11 | Nov 25, 2022 |
| Scapa James Ralph | CEO | SELL | $1M+ | 77K | $49.86 | Nov 17, 2022 |
| Messano Amy | Chief Marketing Of… | SELL | $15K–$50K | 363 | $45.91 | Nov 10, 2022 |
| Dias Nelson | Chief Revenue Offi… | SELL | <$1K | 9 | $49.82 | Jul 18, 2022 |
| Dias Nelson | Chief Revenue Offi… | GRANT | $1K–$15K | 145 | $41.68 | Jul 18, 2022 |
| Schramm Uwe | Chief Vision Officer | EXERCISE | $15K–$50K | 3K | $5.18 | Jun 9, 2022 |
| Schramm Uwe | Chief Vision Officer | SELL | $100K–$500K | 3K | $55.47 | Jun 9, 2022 |
| Schramm Uwe | Chief Vision Officer | EXERCISE | $15K–$50K | 6K | $4.94 | May 27, 2022 |
| Schramm Uwe | Chief Vision Officer | SELL | $100K–$500K | 6K | $52.64 | May 27, 2022 |
| Scapa James Ralph | CEO | SELL | $100K–$500K | 3K | $49.31 | May 13, 2022 |
| Gayle Brian | Chief Accounting O… | SELL | $1K–$15K | 77 | $61.13 | Mar 21, 2022 |
| Dias Nelson | Chief Revenue Offi… | SELL | $1K–$15K | 116 | $61.13 | Mar 21, 2022 |
| Scapa James Ralph | CEO | GRANT | N/A | 2K | — | Mar 18, 2022 |
| Scapa James Ralph | CEO | SELL | $100K–$500K | 2K | $57.37 | Mar 18, 2022 |
| Scapa James Ralph | CEO | EXERCISE | N/A | 19K | — | Mar 18, 2022 |
| Gayle Brian | Chief Accounting O… | GRANT | N/A | 2K | — | Mar 18, 2022 |
| Gayle Brian | Chief Accounting O… | SELL | $15K–$50K | 324 | $58.50 | Mar 18, 2022 |
| Messano Amy | Chief Marketing Of… | SELL | $15K–$50K | 702 | $68.81 | Mar 18, 2022 |
| Maitra Raoul | Chief Legal Officer | SELL | $15K–$50K | 401 | $51.32 | Mar 18, 2022 |
| Srikanth Mahalingam | Chief Technical Of… | SELL | $1K–$15K | 153 | $58.50 | Mar 18, 2022 |
| Srikanth Mahalingam | Chief Technical Of… | GRANT | N/A | 3K | — | Mar 18, 2022 |
| Saravia Gilma | Chief People Officer | GRANT | N/A | 3K | — | Mar 18, 2022 |
| Saravia Gilma | Chief People Officer | SELL | $1K–$15K | 153 | $58.50 | Mar 18, 2022 |
| Simon David L | Chief Administrati… | SELL | $15K–$50K | 273 | $58.50 | Mar 18, 2022 |
| Schramm Uwe | Chief Vision Officer | SELL | $15K–$50K | 455 | $58.50 | Mar 18, 2022 |
| Buckner Stephanie | COO | SELL | $15K–$50K | 336 | $58.49 | Mar 18, 2022 |
| Dias Nelson | Chief Revenue Offi… | SELL | $15K–$50K | 417 | $58.50 | Mar 18, 2022 |
| Marraccini Jeffrey | See Remarks | SELL | $1K–$15K | 217 | $58.49 | Mar 18, 2022 |
| Buckner Stephanie | COO | GRANT | N/A | 3K | — | Mar 17, 2022 |
| Buckner Stephanie | COO | SELL | $1K–$15K | 81 | $59.96 | Mar 17, 2022 |
| Dias Nelson | Chief Revenue Offi… | SELL | <$1K | 8 | $59.48 | Mar 16, 2022 |
| Dias Nelson | Chief Revenue Offi… | GRANT | N/A | 4K | — | Mar 16, 2022 |
| Scapa James Ralph | CEO | SELL | $50K–$100K | 1K | $59.96 | Mar 16, 2022 |
| Messano Amy | Chief Marketing Of… | SELL | $1K–$15K | 115 | $59.96 | Mar 16, 2022 |
| Messano Amy | Chief Marketing Of… | GRANT | N/A | 3K | — | Mar 16, 2022 |
| Maitra Raoul | Chief Legal Officer | GRANT | N/A | 2K | — | Mar 16, 2022 |
| Maitra Raoul | Chief Legal Officer | SELL | $1K–$15K | 75 | $59.96 | Mar 16, 2022 |
| Simon David L | Chief Administrati… | SELL | $1K–$15K | 88 | $59.96 | Mar 16, 2022 |
| Simon David L | Chief Administrati… | GRANT | N/A | 2K | — | Mar 16, 2022 |
| Schramm Uwe | Chief Vision Officer | SELL | $1K–$15K | 128 | $59.96 | Mar 16, 2022 |
| Schramm Uwe | Chief Vision Officer | GRANT | N/A | 3K | — | Mar 16, 2022 |
| Marraccini Jeffrey | See Remarks | SELL | $1K–$15K | 126 | $59.96 | Mar 16, 2022 |
| Marraccini Jeffrey | See Remarks | SELL | $50K–$100K | 920 | $62.79 | Mar 10, 2022 |
| Schramm Uwe | See Remarks | SELL | $1K–$15K | 222 | $63.27 | Mar 10, 2022 |
| Gayle Brian | Chief Accounting O… | SELL | $1K–$15K | 91 | $64.55 | Mar 10, 2022 |
| Brown Matthew Charles | CFO | SELL | $100K–$500K | 2K | $64.55 | Mar 10, 2022 |
| Simon David L | Chief Administrati… | SELL | $1K–$15K | 91 | $64.55 | Mar 10, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 1 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| HUNTINGTON NATIONAL BANK | 1 | $1K–$15K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Matrix Capital Management Company, LP
SC 13G/A · Apr 7, 2025
0.0%
0 shares
SC 13G/A · Mar 26, 2025
0.0%
0 shares
SC 13G/A · Mar 26, 2025
0.0%
0 shares
SC 13G/A · Feb 5, 2025
12.5%
7.5M shares
SC 13G · Nov 21, 2024
3.8%
2.3M shares
Matrix Capital Management Company LP
SC 13G/A · Nov 13, 2024
20.9%
12.4M shares
SC 13G/A · Nov 8, 2024
22.3%
17.1M shares
SC 13G/A · Nov 8, 2024
13.9%
9.5M shares
SC 13G/A · Jul 8, 2024
13.8%
7.9M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
10.6%
5.8M shares
Matrix Capital Management Company LP
SC 13G/A · Feb 13, 2024
22.4%
12.2M shares
SC 13G/A · Feb 13, 2024
23.9%
17.1M shares
SC 13G/A · Feb 13, 2024
15.8%
10.2M shares
SC 13G · Jan 31, 2024
5.3%
2.9M shares
SC 13G/A · Jan 25, 2024
8.4%
4.6M shares
The Vanguard Group - 23-1945930
SC 13G/A · Jun 9, 2023
10.1%
5.4M shares
Matrix Capital Management Company LP
SC 13G/A · Feb 13, 2023
20.8%
10.9M shares
SC 13G/A · Jan 31, 2023
7.7%
4.1M shares
Matrix Capital Management Company LP
SC 13G/A · Feb 14, 2022
16.9%
8.6M shares