Blumenstock Gerald M
SEC insider (Form 3/4/5 filer). CIK 0001979418. EVP, Research, Dev. & Eng. at AXCELIS TECHNOLOGIES INC (ACLS). 14 reported Form 4/5 transactions since Sep 2024; latest on Jun 15, 2026. Located in BEVERLY, MA.
Companies Blumenstock Gerald M has filed insider reports for
- AXCELIS TECHNOLOGIES INC (ACLS): Officer, EVP, Research, Dev. & Eng.
Blumenstock Gerald M
CIK: 0001979418
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
AXCELIS TECHNOLOGIES INC
Discretionary Trading P&L
Holdings
Transaction History (14 total)
- Jun 15, 2026ACLS
AXCELIS TECHNOLOGIES INC
Tax PaymentDirect506 shares at avg. $191.60$97K - May 21, 2026ACLS
AXCELIS TECHNOLOGIES INC
SaleDirect1.2K shares at avg. $152.70$177K - May 15, 2026ACLS
AXCELIS TECHNOLOGIES INC
AwardDirect2.7K shares- - May 15, 2026ACLS
AXCELIS TECHNOLOGIES INC
Tax PaymentDirect345 shares at avg. $155.18$54K - May 15, 2026ACLS
AXCELIS TECHNOLOGIES INC
Tax PaymentDirect744 shares at avg. $155.18$115K - May 15, 2026ACLS
AXCELIS TECHNOLOGIES INC
AwardDirect2.7K shares- - May 14, 2026ACLS
AXCELIS TECHNOLOGIES INC
SaleDirect1K shares at avg. $162.31$165K - Mar 2, 2026ACLS
AXCELIS TECHNOLOGIES INC
Tax PaymentDirect1.1K shares at avg. $86.58$97K - Dec 11, 2025ACLS
AXCELIS TECHNOLOGIES INC
SaleDirect3K shares at avg. $89.46$271K - Jun 16, 2025ACLS
AXCELIS TECHNOLOGIES INC
Tax PaymentDirect506 shares at avg. $68.96$35K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 15, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Tax Payment | 506 | $191.60 | $96,950 | Direct |
| May 21, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Sale | 1,161 | $152.70 | $177,285 | Direct |
| May 15, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Award | 2,725 | - | $0 | Direct |
| May 15, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Tax Payment | 345 | $155.18 | $53,537 | Direct |
| May 15, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Tax Payment | 744 | $155.18 | $115,454 | Direct |
| May 15, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Award | 2,725 | - | $0 | Direct |
| May 14, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Sale | 1,015 | $162.31 | $164,750 | Direct |
| Mar 2, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Tax Payment | 1,121 | $86.58 | $97,056 | Direct |
| Dec 11, 2025 | ACLS AXCELIS TECHNOLOGIES INC | Sale | 3,034 | $89.46 | $271,422 | Direct |
| Jun 16, 2025 | ACLS AXCELIS TECHNOLOGIES INC | Tax Payment | 506 | $68.96 | $34,894 | Direct |
1-10 of 14 transactions