Blumenstock Gerald M (CIK 1979418) reported 14 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-16). Recent activity: Sell ACLS (506 shares), Sell ACLS (1,161 shares), Buy ACLS (2,725 shares), Buy ACLS (2,725 shares), Sell ACLS (744 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-16 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 506 | $96,950 |
| 2026-05-22 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 1,161 | $177,285 |
| 2026-05-19 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Buy | 2,725 | $0 |
| 2026-05-19 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Buy | 2,725 | $0 |
| 2026-05-19 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 744 | $115,454 |
| 2026-05-19 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 345 | $53,537 |
| 2026-05-15 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 1,015 | $164,750 |
| 2026-03-03 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 1,121 | $97,056 |
| 2025-12-12 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 3,034 | $271,422 |
| 2025-06-17 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 506 | $34,894 |
| 2025-05-19 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Buy | 6,148 | $0 |
| 2025-05-19 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Buy | 6,148 | $0 |
| 2025-05-19 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 345 | $21,621 |
| 2025-03-04 | AXCELIS TECHNOLOGIES INC (ACLS) | EVP, Research, Dev. & Eng. | Sell | 748 | $40,983 |
Source: SEC Form 4 filings · as of 2026-06-16