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 |
|---|---|---|---|---|---|---|
| Kunju Ravi | Chief Product Stra… | SELL | $15K–$50K | 229 | $111.30 | Mar 21, 2025 |
| Scapa James Ralph | CEO | SELL | $1K–$15K | 9 | $111.30 | Mar 19, 2025 |
| Marraccini Jeffrey | See Remarks | SELL | $1K–$15K | 90 | $111.30 | Mar 19, 2025 |
| Dias Nelson | Chief Revenue Offi… | SELL | $100K–$500K | 2K | $111.30 | Mar 19, 2025 |
| Maitra Raoul | Chief Legal Officer | SELL | $15K–$50K | 403 | $111.30 | Mar 19, 2025 |
| Gayle Brian | Chief Accounting O… | SELL | $15K–$50K | 182 | $111.30 | Mar 19, 2025 |
| Buckner Stephanie | COO | SELL | $1K–$15K | 47 | $111.30 | Mar 19, 2025 |
| Messano Amy | Chief Marketing Of… | SELL | $15K–$50K | 416 | $111.30 | Mar 19, 2025 |
| Saravia Gilma | Chief People Officer | SELL | $15K–$50K | 425 | $111.30 | Mar 19, 2025 |
| Kunju Ravi | Chief Product Stra… | SELL | $1K–$15K | 120 | $111.53 | Feb 27, 2025 |
| Maitra Raoul | Chief Legal Officer | SELL | $15K–$50K | 188 | $111.53 | Feb 27, 2025 |
| Dias Nelson | Chief Revenue Offi… | SELL | $15K–$50K | 373 | $111.53 | Feb 27, 2025 |
| Brown Matthew Charles | CFO | SELL | $100K–$500K | 4K | $111.53 | Feb 27, 2025 |
| Saravia Gilma | Chief People Officer | SELL | $15K–$50K | 243 | $111.53 | Feb 27, 2025 |
| Gayle Brian | Chief Accounting O… | SELL | $15K–$50K | 137 | $111.53 | Feb 27, 2025 |
| Messano Amy | Chief Marketing Of… | SELL | $15K–$50K | 235 | $111.53 | Feb 27, 2025 |
| Harris Teresa A | Director | SELL | $100K–$500K | 3K | $111.61 | Feb 27, 2025 |
| Brown Matthew Charles | CFO | SELL | $100K–$500K | 1K | $108.90 | Dec 26, 2024 |
| Scapa James Ralph | CEO | SELL | $1M+ | 13K | $105.69 | Dec 2, 2024 |
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 7K | $105.69 | Dec 2, 2024 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $500K+ | 7K | $105.69 | Dec 2, 2024 |
| Srikanth Mahalingam | CTO | SELL | $1K–$15K | 119 | $105.80 | Nov 27, 2024 |
| Srikanth Mahalingam | CTO | EXERCISE | N/A | 6K | — | Nov 27, 2024 |
| Kunju Ravi | Chief Product Stra… | SELL | $15K–$50K | 360 | $103.65 | Nov 12, 2024 |
| Marraccini Jeffrey | See Remarks | SELL | $100K–$500K | 2K | $104.10 | Nov 7, 2024 |
| Marraccini Jeffrey | See Remarks | EXERCISE | N/A | 2K | — | Nov 7, 2024 |
| Harris Teresa A | Director | EXERCISE | N/A | 620 | — | Nov 6, 2024 |
| Harris Teresa A | Director | SELL | $50K–$100K | 620 | $104.10 | Nov 6, 2024 |
| Scapa James Ralph | CEO | SELL | $1M+ | 13K | $102.59 | Oct 29, 2024 |
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 7K | $102.59 | Oct 29, 2024 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $500K+ | 7K | $102.59 | Oct 29, 2024 |
| Christ Revocable Trust | 10% Owner | SELL | $1M+ | 100K | $106.57 | Oct 25, 2024 |
| Christ George J | 10% Owner | SELL | $1M+ | 100K | $106.57 | Oct 25, 2024 |
| Christ George J | 10% Owner | SELL | $1M+ | 100K | $95.23 | Oct 15, 2024 |
| GC Investments LLC | 10% Owner | SELL | $1M+ | 100K | $95.23 | Oct 15, 2024 |
| Christ George J | 10% Owner | SELL | $1M+ | 50K | $95.72 | Oct 10, 2024 |
| Christ Revocable Trust | 10% Owner | SELL | $1M+ | 50K | $95.72 | Oct 10, 2024 |
| Harris Teresa A | Director | SELL | $50K–$100K | 620 | $95.12 | Oct 1, 2024 |
| Harris Teresa A | Director | EXERCISE | N/A | 620 | — | Oct 1, 2024 |
| Scapa James Ralph | CEO | SELL | $1M+ | 13K | $95.10 | Oct 1, 2024 |
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 7K | $95.10 | Oct 1, 2024 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $500K+ | 7K | $95.10 | Oct 1, 2024 |
| Christ Revocable Trust | 10% Owner | SELL | $1M+ | 50K | $95.07 | Sep 30, 2024 |
| Christ George J | 10% Owner | SELL | $1M+ | 50K | $95.07 | Sep 30, 2024 |
| Scapa James Ralph | CEO | SELL | $1M+ | 13K | $89.04 | Aug 29, 2024 |
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 7K | $89.04 | Aug 29, 2024 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $500K+ | 7K | $89.04 | Aug 29, 2024 |
| Scapa James Ralph | CEO | SELL | $1M+ | 13K | $98.26 | Jul 1, 2024 |
| JRS Investments LLC | 10% Owner | SELL | $500K+ | 7K | $98.26 | Jul 1, 2024 |
| James R. Scapa Declaration of Trust | 10% Owner | SELL | $500K+ | 7K | $98.26 | Jul 1, 2024 |
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