Institutional Ownership
Altair Engr Inc
CUSIP 021369103COM CL AALTREURQ1 2026
13D / 13G Filings
41
Schedule 13D/13G on record
Beneficial Filers
12
Distinct reporting persons
Largest Stake
31.3%
Max % of class reported
Institutional Holders
1
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
41 filings · latest Apr 7, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Apr 7, 2025 | Matrix Capital Management Company, LP | 13G/A | — | 49 | SEC |
| 2 | Mar 26, 2025 | James Ralph Scapa | 13G/A | — | — | SEC |
| 3 | Mar 26, 2025 | George J. Christ | 13G/A | — | — | SEC |
| 4 | Feb 5, 2025 | Blackrock, Inc. | 13G/A | 12.5% | 7.48M | SEC |
| 5 | Nov 21, 2024 | Pictet Asset Management SA | 13G | 3.8% | 2.28M | SEC |
| 6 | Nov 13, 2024 | Matrix Capital Management Company, LP | 13G/A | 20.9% | 12.43M | SEC |
| 7 | Nov 8, 2024 | Scapa James Ralph | 13G/A | 22.3% | 17.11M | SEC |
| 8 | Nov 8, 2024 | Christ George J | 13G/A | 13.9% | 9.45M | SEC |
| 9 | Jul 8, 2024 | Blackrock Inc. | 13G/A | 13.8% | 7.88M | SEC |
| 10 | Feb 13, 2024 | Scapa James Ralph | 13G/A | 23.9% | 17.12M | SEC |
31 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Altair Engr Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Huntington National Bank | 1 | $2.1K |