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Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001085146-21-000003
Filing Date
2021-01-06
Accepted
2021-01-06 09:20:11
Documents
1

Document Format Files

Seq Description Document Type Size
1 CONESTOGA CAPITAL ADVISORS altra1_10621.htm SC 13G/A 26411
  Complete submission text file 0001085146-21-000003.txt   28074
Mailing Address 550 E. SWEDESFORD ROAD SUITE 120 WAYNE PA 19087
Business Address 550 E. SWEDESFORD ROAD SUITE 120 WAYNE PA 19087 484-654-1380
Conestoga Capital Advisors, LLC (Filed by) CIK: 0001163744 (see all company filings)

IRS No.: 233072906 | State of Incorp.: DE
Type: SC 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)

IRS No.: 382591828 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-90370 | Film No.: 21509183
SIC: 7372 Services-Prepackaged Software