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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001564590-19-005799
Filing Date
2019-03-01
Accepted
2019-03-01 16:06:19
Documents
127
Period of Report
2018-12-31

Document Format Files

Seq Description Document Type Size
1 10-K altr-10k_20181231.htm 10-K 6230563
2 EX-21.1 altr-ex211_246.htm EX-21.1 7382
3 EX-23.1 altr-ex231_283.htm EX-23.1 6129
4 EX-31.1 altr-ex311_235.htm EX-31.1 8459
5 EX-31.2 altr-ex312_233.htm EX-31.2 8723
6 EX-32.1 altr-ex321_234.htm EX-32.1 6705
7 GRAPHIC gv2qxaqjjgrt000001.jpg GRAPHIC 23695
  Complete submission text file 0001564590-19-005799.txt   20603075

Data Files

Seq Description Document Type Size
8 XBRL INSTANCE DOCUMENT altr-20181231.xml EX-101.INS 4874772
9 XBRL TAXONOMY EXTENSION SCHEMA altr-20181231.xsd EX-101.SCH 99746
10 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE altr-20181231_cal.xml EX-101.CAL 130227
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE altr-20181231_def.xml EX-101.DEF 460125
12 XBRL TAXONOMY EXTENSION LABEL LINKBASE altr-20181231_lab.xml EX-101.LAB 776081
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE altr-20181231_pre.xml EX-101.PRE 725466
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.: 19649302
SIC: 7372 Services-Prepackaged Software
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