Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902664-25-001703
Filing Date
2025-04-07
Accepted
2025-04-07 16:15:10
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G/A  
1 primary_doc.xml SCHEDULE 13G/A 8024
  Complete submission text file 0000902664-25-001703.txt   9982
Mailing Address 3 PLEASANT STREET, SUITE 400 C/O MATRIX CAPITAL MANAGEMENT PORTSMOUTH NH 03801
Business Address 3 PLEASANT STREET, SUITE 400 C/O MATRIX CAPITAL MANAGEMENT PORTSMOUTH NH 03801 781-522-4948
Matrix Capital Management Company, LP (Filed by) CIK: 0001410830 (see all company filings)

EIN.: 043475951 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G/A

Mailing Address 1820 E. BIG BEAVER ROAD TROY MI 48083
Business Address 1820 E. BIG BEAVER ROAD TROY MI 48083 248-614-2400
Altair Engineering Inc. (Subject) CIK: 0001701732 (see all company filings)

EIN.: 382591828 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G/A | Act: 34 | File No.: 005-90370 | Film No.: 25818295
SIC: 7372 Services-Prepackaged Software
(CF Office: 06 Technology)