Gerald M. Blumenstock serves as Executive at AXCELIS TECHNOLOGIES INC, where they oversee executive responsibilities. Since joining the company, Gerald M. Blumenstock has executed 5 insider transactions totaling $271.4K, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 11, 2025 involved selling 3,034 shares valued at $271.4K.
Gerald M. Blumenstock currently holds 18,661 shares of AXCELIS TECHNOLOGIES INC (ACLS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Gerald M. Blumenstock has been a net seller of ACLS stock. They have purchased $0 and sold $271.4K worth of shares.
Gerald M. Blumenstock's most recent insider trade was on Dec 11, 2025, when they sold 3,034 shares at $89.46 per share.
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| $138.02 |
| Discretionary |
| May 15, 2024 | ACLS | $0 | Award | 2,849 | $N/A | Discretionary |
| May 15, 2024 | ACLS | $0 | Award | 2,849 | $N/A | Discretionary |
| Jun 15, 2023 | ACLS | $0 | Award | 4,182 | $N/A | Discretionary |