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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000950170-23-004281
Filing Date
2023-02-24
Accepted
2023-02-24 10:47:03
Documents
120
Period of Report
2022-12-31

Document Format Files

Seq Description Document Type Size
1 10-K altr-20221231.htm   iXBRL 10-K 6694613
2 EX-4.1 altr-ex4_1.htm EX-4 49309
3 EX-10.26 altr-ex10_26.htm EX-10 144935
4 EX-21.1 altr-ex21_1.htm EX-21 50775
5 EX-23.1 altr-ex23_1.htm EX-23 13621
6 EX-31.1 altr-ex31_1.htm EX-31 14248
7 EX-31.2 altr-ex31_2.htm EX-31 14245
8 EX-32.1 altr-ex32_1.htm EX-32 12028
9 GRAPHIC img205777825_0.jpg GRAPHIC 300837
  Complete submission text file 0000950170-23-004281.txt   24280945

Data Files

Seq Description Document Type Size
10 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT altr-20221231_lab.xml EX-101.LAB 865808
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT altr-20221231_def.xml EX-101.DEF 472085
12 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT altr-20221231.xsd EX-101.SCH 99355
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT altr-20221231_pre.xml EX-101.PRE 716683
14 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT altr-20221231_cal.xml EX-101.CAL 121800
114 EXTRACTED XBRL INSTANCE DOCUMENT altr-20221231_htm.xml XML 5319751
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. (Filer) CIK: 0001701732 (see all company filings)

IRS No.: 382591828 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-38263 | Film No.: 23663546
SIC: 7372 Services-Prepackaged Software