David L. Simon is CAO at Altair Engineering Inc. (ALTR). They have made 10 open-market trades across 1 company since 2019, most recently 2022-07-14.
CIK 0001763738
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ALTR | 26,745 | $3.0M |
Shares reported on the most recent Form 4, priced at the 2022-07-18 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ALTR | SELL | 2022-03-16 | 2022-03-18 | $58.50 | $16K | +2.4% | -9.6% | -20.8% |
| ALTR | SELL | 2022-03-14 | 2022-03-15 | $59.96 | $5K | +6.7% | -1.2% | -14.6% |
| ALTR | SELL | 2022-03-07 | 2022-03-09 | $64.55 | $6K | -1.0% | -6.9% | -13.0% |
| ALTR | SELL | 2021-03-16 | 2021-03-18 | $60.43 | $10K | +3.7% | +7.7% | +7.6% |
| ALTR | SELL | 2021-03-12 | 2021-03-16 | $59.52 | $5K | +6.5% | +3.4% | +12.1% |
| ALTR | SELL | 2021-03-04 | 2021-03-08 | $61.51 | $6K | +3.3% | +11.9% | +14.7% |
| ALTR | SELL | 2020-08-24 | 2020-08-25 | $41.44 | $104K | -5.7% | -5.8% | +20.7% |
| ALTR | SELL | 2020-03-16 | 2020-03-18 | $24.61 | $4K | -14.7% | +4.7% | +31.1% |
| ALTR | SELL | 2020-03-09 | 2020-03-11 | $28.83 | $3K | -7.8% | +3.2% | +43.4% |
| ALTR | SELL | 2019-03-06 | 2019-06-05 | $35.64 | $3K | +5.0% | +16.4% | -6.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.