Nelson Dias is CRO at Altair Engineering Inc. (ALTR). They have made 29 open-market trades across 1 company since 2018, most recently 2025-03-26.
CIK 0001720642
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 29 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ALTR | 55,411 | $6.2M |
Shares reported on the most recent Form 4, priced at the 2025-03-19 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ALTR | SELL | 2025-03-17 | 2025-03-19 | $111.30 | $372K | N/A | N/A | N/A |
| ALTR | SELL | 2025-03-03 | 2025-03-05 | $111.45 | $109K | +0.2% | N/A | N/A |
| ALTR | SELL | 2025-02-26 | 2025-02-27 | $111.53 | $42K | -0.1% | N/A | N/A |
| ALTR | SELL | 2024-12-10 | 2024-12-11 | $106.23 | $2.4M | +2.2% | +3.6% | +4.6% |
| ALTR | SELL | 2024-05-08 | 2024-05-10 | $84.38 | $24K | +5.7% | +8.3% | +4.0% |
| ALTR | SELL | 2024-03-04 | 2024-03-05 | $85.32 | $42K | -4.8% | +0.5% | +4.2% |
| ALTR | SELL | 2024-02-28 | 2024-02-29 | $83.65 | $31K | -3.7% | +0.2% | +5.2% |
| ALTR | SELL | 2023-06-02 | 2023-06-05 | $74.03 | $349K | +1.9% | -0.6% | -12.1% |
| ALTR | SELL | 2023-05-16 | 2023-05-17 | $67.78 | $493K | +10.3% | +8.7% | -8.6% |
| ALTR | SELL | 2023-03-16 | 2023-03-17 | $65.65 | $35K | +0.8% | +1.4% | +10.1% |
| ALTR | SELL | 2023-03-15 | 2023-03-16 | $65.47 | $200K | +2.1% | +3.2% | +12.2% |
| ALTR | SELL | 2023-03-01 | 2023-03-03 | $63.84 | $24K | +2.1% | +8.5% | +14.2% |
| ALTR | SELL | 2022-11-23 | 2022-11-25 | $47.11 | $188K | +1.9% | -6.7% | +20.2% |
| ALTR | SELL | 2022-07-14 | 2022-07-18 | $49.82 | $448 | +11.2% | +9.2% | -12.6% |
| ALTR | SELL | 2022-03-17 | 2022-03-21 | $61.13 | $7K | +2.2% | -7.4% | -16.9% |
| ALTR | SELL | 2022-03-16 | 2022-03-18 | $58.50 | $24K | +2.4% | -9.6% | -20.8% |
| ALTR | SELL | 2022-03-15 | 2022-03-16 | $59.48 | $476 | +4.7% | -5.9% | -19.2% |
| ALTR | SELL | 2022-03-07 | 2022-03-09 | $64.55 | $7K | -1.0% | -6.9% | -13.0% |
| ALTR | SELL | 2021-03-17 | 2021-03-18 | $59.58 | $7K | +3.7% | +7.7% | +7.6% |
| ALTR | SELL | 2021-03-16 | 2021-03-18 | $60.42 | $15K | +3.7% | +7.7% | +7.6% |
| ALTR | SELL | 2021-03-04 | 2021-03-08 | $61.51 | $6K | +3.3% | +11.9% | +14.7% |
| ALTR | SELL | 2020-11-25 | 2020-11-27 | $52.06 | $208K | +3.6% | +10.4% | +8.8% |
| ALTR | SELL | 2020-06-04 | 2020-06-08 | $39.30 | $79K | +1.4% | +1.3% | +1.0% |
| ALTR | SELL | 2020-03-16 | 2020-03-18 | $24.61 | $5K | -14.7% | +4.7% | +31.1% |
| ALTR | SELL | 2020-03-09 | 2020-03-11 | $28.84 | $3K | -7.8% | +3.2% | +43.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.