| Date Filed | Type | Description |
| 08/03/2023 |
10-Q
| Quarterly Report for the period ended June 30, 2023 |
| 08/03/2023 |
8-K
| Quarterly results |
| 07/17/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 06/12/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 06/09/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 06/09/2023 |
SC 13G/A
| VANGUARD GROUP INC reports a 10.1% stake in Altair Engineering Inc. Class A |
| 06/08/2023 |
8-K
| Submission of Matters to a Vote of Security Holders Interactive Data |
| 06/07/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 06/06/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 06/02/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 05/31/2023 |
8-K
| Other Events Interactive Data |
| 05/26/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 05/16/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 05/04/2023 |
10-Q
| Quarterly Report for the period ended March 31, 2023 |
| 05/04/2023 |
8-K
| Quarterly results |
| 04/25/2023 |
ARS
| Form ARS - Annual Report to Security Holders: |
| 04/25/2023 |
DEFA14A
| Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material: |
| 04/25/2023 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 04/17/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 02/24/2023 |
10-K
| Annual Report for the period ended December 31, 2022 |
| 02/23/2023 |
8-K
| Quarterly results |
| 02/13/2023 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/06/2023 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/06/2023 |
SC 13G/A
| Scapa James Ralph reports a 24.9% stake in ALTAIR ENGINEERING INC. |
| 01/31/2023 |
SC 13G/A
| BlackRock Inc. reports a 7.7% stake in Altair Engineering Inc |
| 01/04/2023 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 11/10/2022 |
8-K
| Quarterly results |
| 11/04/2022 |
10-Q
| Quarterly Report for the period ended September 30, 2022 |
| 11/03/2022 |
8-K
| Quarterly results |
| 10/03/2022 |
8-K
| Quarterly results |
| 09/16/2022 |
8-K
| Other Events, Financial Statements and Exhibits Interactive Data|
Docs:
|
"UNITED STATES SECURITIES AND EXCHANGE COMMISSION",
"Altair Announces Completion of Acquisition of RapidMiner TROY, Mich., Sept. 16 2022 - Altair , a global leader in computational science and artificial intelligence , has completed the acquisition of RapidMiner , a leader in advanced data analytics and machine learning software. RapidMiner's well-established desktop platform and new-to-market cloud platform strengthens Altair's current end-to-end data analytics portfolio, which already offers customers the power to understand, transform, act on, and automate their data. Altair is well positioned to execute on the newly acquired technology and continue to grow its existing business. About Altair" |
|
| 09/13/2022 |
8-K
| Entry into a Material Definitive Agreement, Financial Statements and Exhibits Interactive Data|
Docs:
|
"Agreement and Plan of Merger, by and among the Registrant, RapidMiner, Inc., Rambler Merger Sub Inc., and the stockholder representative named therein",
"Agreement and Plan of Merger, by and among the Registrant, RapidMiner, Inc., Rambler Merger Sub Inc., and the stockholder representative named therein" |
|
| 08/23/2022 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 08/05/2022 |
S-3ASR
| Form S-3ASR - Automatic shelf registration statement of securities of well-known seasoned issuers: |
|