24 results
8-K
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10 Dec 21
Departure of Directors or Certain Officers
7:05am
8-K
EX-99.1
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27 Sep 21
Altair Announces Private Placement Financing of $200 Million from Matrix Capital
9:08am
8-K
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16 Jul 21
Departure of Directors or Certain Officers
4:01pm
DEFA14A
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13 May 21
Additional proxy soliciting materials
4:24pm
8-K
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8 Dec 20
Departure of Directors or Certain Officers
4:42pm
8-K
EX-99.1
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14 Sep 20
Altair Acquires Univa
4:05pm
8-K
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13 Nov 18
Departure of Directors or Certain Officers
4:04pm
8-K
EX-99.1
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8 Nov 18
Altair Announces Third Quarter 2018 Financial Results
4:30pm
SC TO-C
EX-99.1
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8 Nov 18
Information about tender offer
4:28pm