David L. Simon, Chief Administrative Officer at Altair Engineering Inc. (ALTR), sold 91 shares at $59.52 ($5K) on 2021-03-12, disclosed to the SEC on 2021-03-16.
Open-market sale of $5k ALTR by Chief Administrative Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| ALTR | SELL | 2022-03-09 | $6K | — | Filing → |
| ALTR | SELL | 2021-03-18 | $10K | — | Filing → |
| ALTR | SELL | 2021-03-08 | $6K | — | Filing → |