SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001193125-18-090811
Filing Date
2018-03-21
Accepted
2018-03-21 17:09:12
Documents
120
Period of Report
2017-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K d503331d10k.htm 10-K 1517068
2 EX-21.1 d503331dex211.htm EX-21.1 3076
3 EX-23.1 d503331dex231.htm EX-23.1 1732
4 EX-31.1 d503331dex311.htm EX-31.1 6054
5 EX-31.2 d503331dex312.htm EX-31.2 6627
6 EX-32.1 d503331dex321.htm EX-32.1 4743
13 GRAPHIC g503331g0315082453384.jpg GRAPHIC 25704
  Complete submission text file 0001193125-18-090811.txt   9132829

Data Files

Seq Description Document Type Size
7 XBRL INSTANCE DOCUMENT altr-20171231.xml EX-101.INS 1798095
8 XBRL TAXONOMY EXTENSION SCHEMA altr-20171231.xsd EX-101.SCH 85627
9 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE altr-20171231_cal.xml EX-101.CAL 151030
10 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE altr-20171231_def.xml EX-101.DEF 367028
11 XBRL TAXONOMY EXTENSION LABEL LINKBASE altr-20171231_lab.xml EX-101.LAB 754865
12 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE altr-20171231_pre.xml EX-101.PRE 611505
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.: 18705107
SIC: 7372 Services-Prepackaged Software
Office of Technology