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 |
|---|---|---|---|---|---|---|
| Srikanth Mahalingam | CTO | SELL | $100K–$500K | 5K | $67.72 | Mar 17, 2023 |
| Dias Nelson | Chief Revenue Offi… | SELL | $15K–$50K | 538 | $65.65 | Mar 17, 2023 |
| Messano Amy | Chief Marketing Of… | SELL | $1K–$15K | 155 | $64.97 | Mar 17, 2023 |
| Gayle Brian | Chief Accounting O… | SELL | $15K–$50K | 376 | $65.63 | Mar 17, 2023 |
| Buckner Stephanie | COO | SELL | $1K–$15K | 31 | $64.96 | Mar 17, 2023 |
| Maitra Raoul | Chief Legal Officer | SELL | $15K–$50K | 313 | $64.97 | Mar 17, 2023 |
| Saravia Gilma | Chief People Officer | SELL | $1K–$15K | 155 | $64.97 | Mar 17, 2023 |
| Marraccini Jeffrey | See Remarks | SELL | $1K–$15K | 220 | $64.97 | Mar 17, 2023 |
| Kunju Ravi | Chief Product Stra… | SELL | $1K–$15K | 113 | $64.97 | Mar 17, 2023 |
| Scapa James Ralph | CEO | SELL | $1M+ | 35K | $66.16 | Mar 16, 2023 |
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 15K | $66.16 | Mar 16, 2023 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $1M+ | 20K | $66.16 | Mar 16, 2023 |
| Dias Nelson | Chief Revenue Offi… | SELL | $50K–$100K | 2K | $65.47 | Mar 16, 2023 |
| Dias Nelson | Chief Revenue Offi… | EXERCISE | N/A | 2K | — | Mar 16, 2023 |
| Christ George J | 10% Owner | SELL | $1M+ | 50K | $66.02 | Mar 16, 2023 |
| GC Investments LLC | 10% Owner | SELL | $1M+ | 50K | $66.02 | Mar 16, 2023 |
| Scapa James Ralph | CEO | SELL | $50K–$100K | 2K | $62.49 | Mar 15, 2023 |
| Maitra Raoul | Chief Legal Officer | SELL | $1K–$15K | 77 | $62.49 | Mar 15, 2023 |
| Kunju Ravi | Chief Product Stra… | SELL | $1K–$15K | 76 | $62.49 | Mar 15, 2023 |
| Messano Amy | Chief Marketing Of… | SELL | $1K–$15K | 114 | $62.49 | Mar 15, 2023 |
| Marraccini Jeffrey | See Remarks | SELL | $1K–$15K | 125 | $62.49 | Mar 15, 2023 |
| Christ George J | 10% Owner | SELL | $1M+ | 50K | $64.77 | Mar 14, 2023 |
| GC Investments LLC | 10% Owner | SELL | $1M+ | 50K | $64.77 | Mar 14, 2023 |
| Saravia Gilma | Chief People Officer | SELL | $50K–$100K | 925 | $63.84 | Mar 3, 2023 |
| Saravia Gilma | Chief People Officer | GRANT | N/A | 4K | — | Mar 3, 2023 |
| Messano Amy | Chief Marketing Of… | SELL | $15K–$50K | 519 | $63.84 | Mar 3, 2023 |
| Messano Amy | Chief Marketing Of… | GRANT | N/A | 4K | — | Mar 3, 2023 |
| Maitra Raoul | Chief Legal Officer | SELL | $1K–$15K | 154 | $63.84 | Mar 3, 2023 |
| Maitra Raoul | Chief Legal Officer | GRANT | N/A | 3K | — | Mar 3, 2023 |
| Kunju Ravi | Chief Product Stra… | GRANT | N/A | 2K | — | Mar 3, 2023 |
| Kunju Ravi | Chief Product Stra… | SELL | $1K–$15K | 120 | $63.84 | Mar 3, 2023 |
| Gayle Brian | Chief Accounting O… | GRANT | N/A | 3K | — | Mar 3, 2023 |
| Gayle Brian | Chief Accounting O… | SELL | $1K–$15K | 157 | $63.84 | Mar 3, 2023 |
| Dias Nelson | Chief Revenue Offi… | GRANT | N/A | 5K | — | Mar 3, 2023 |
| Dias Nelson | Chief Revenue Offi… | SELL | $15K–$50K | 373 | $63.84 | Mar 3, 2023 |
| Buckner Stephanie | COO | GRANT | N/A | 6K | — | Mar 3, 2023 |
| Buckner Stephanie | COO | SELL | $1K–$15K | 174 | $63.84 | Mar 3, 2023 |
| Brown Matthew Charles | CFO | GRANT | N/A | 8K | — | Mar 3, 2023 |
| Brown Matthew Charles | CFO | SELL | $100K–$500K | 3K | $63.84 | Mar 3, 2023 |
| Marraccini Jeffrey | See Remarks | SELL | $100K–$500K | 2K | $64.48 | Mar 2, 2023 |
| Ayyar Shekar G | Director | SELL | $100K–$500K | 4K | $64.76 | Mar 2, 2023 |
| Gayle Brian | Chief Accounting O… | SELL | $50K–$100K | 1K | $64.50 | Mar 1, 2023 |
| Maitra Raoul | Chief Legal Officer | SELL | $100K–$500K | 3K | $64.53 | Mar 1, 2023 |
| Scapa James Ralph | CEO | SELL | $1M+ | 35K | $57.70 | Feb 16, 2023 |
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 15K | $57.70 | Feb 16, 2023 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $1M+ | 20K | $57.70 | Feb 16, 2023 |
| Scapa James Ralph | CEO | SELL | $1M+ | 35K | $49.91 | Jan 19, 2023 |
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 15K | $49.91 | Jan 19, 2023 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $500K+ | 20K | $49.91 | Jan 19, 2023 |
| Scapa James Ralph | CEO | SELL | $1M+ | 35K | $48.45 | Jan 10, 2023 |
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