Russell Low is CEO & President at AXCELIS TECHNOLOGIES INC (ACLS). They have made 9 open-market trades across 1 company since 2020, most recently 2026-05-18.
CIK 0001689237
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.
1 open-market purchase totalling $49K since 2024, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ACLS | 154,900 | $16.8M |
Shares reported on the most recent Form 4, priced at the 2026-05-20 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ACLS | SELL · 10b5-1 | 2026-05-06 | 2026-05-07 | $156.75 | $1.2M | -5.7% | +1.8% | -10.4% |
| ACLS | SELL · 10b5-1 | 2026-05-01 | 2026-05-04 | $138.86 | $173K | +14.0% | +12.2% | -7.6% |
| ACLS | SELL · 10b5-1 | 2026-04-01 | 2026-04-02 | $94.06 | $117K | +24.1% | +49.4% | +87.6% |
| ACLS | SELL · 10b5-1 | 2026-03-24 | 2026-03-26 | $90.00 | $112K | +8.9% | +43.1% | +75.8% |
| ACLS | BUY | 2024-03-11 | 2024-03-11 | $112.39 | $49K | -0.2% | -8.3% | +11.0% |
| ACLS | SELL | 2023-09-07 | 2023-09-07 | $179.25 | $1.2M | -6.5% | -10.3% | -31.6% |
| ACLS | SELL | 2023-06-08 | 2023-06-08 | $173.41 | $1.2M | -5.2% | +1.7% | +9.2% |
| ACLS | SELL | 2023-05-25 | 2023-05-25 | $153.13 | $1.5M | +11.4% | +10.0% | +15.5% |
| ACLS | SELL | 2023-05-16 | 2023-05-16 | $130.76 | $2.2M | +23.0% | +30.7% | +30.2% |
| ACLS | SELL | 2023-02-13 | 2023-02-13 | $125.72 | $2.4M | -2.4% | -2.1% | +1.2% |
| ACLS | SELL | 2022-11-10 | 2022-11-10 | $73.64 | $1.1M | +4.9% | +11.1% | +56.8% |
| ACLS | SELL | 2021-08-30 | 2021-08-30 | $50.63 | $335K | -4.3% | -8.2% | +22.3% |
| ACLS | SELL | 2020-05-26 | 2020-05-26 | $26.76 | $1.6M | +0.5% | +4.1% | -6.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.