Blumenstock Gerald M 4
4 · AXCELIS TECHNOLOGIES INC · Filed Jun 16, 2026
Research Summary
AI-generated summary of this filing
Axcelis (ACLS) EVP Gerald Blumenstock Forfeits 506 Shares
What Happened
Gerald M. Blumenstock, EVP of Research, Development & Engineering at Axcelis Technologies (ACLS), had 506 shares withheld to satisfy his tax withholding obligation related to RSUs that vested on June 15, 2026. The shares withheld were valued at $191.60 each (closing price), for a total of $96,950. This was a tax-withholding/net settlement of vested restricted stock units—not an open-market sale.
Key Details
- Transaction date: June 15, 2026; Filing date: June 16, 2026.
- Transaction type/code: Forfeiture for tax withholding (F).
- Share count withheld: 506 shares at $191.60 per share; total value ~$96,950 (per closing price).
- Shares remaining/subject to vesting: Footnote indicates 19,447 shares are still issuable on vesting of RSUs granted under the 2012 Equity Incentive Plan and remain subject to forfeiture.
- Footnotes: F1 — withholding relates to RSUs granted June 2023 and vested June 15, 2026; F2 — price is the closing price on the withholding date; F3 — 19,447 RSU shares remain issuable.
- Timeliness: Filed the day after the vesting/reporting date (no late-filing indication in the report).
Context
This was a routine net settlement to cover tax withholding on vested RSUs (common practice). Such withholding actions are not necessarily indicative of the insider buying or selling shares on the open market and do not, by themselves, signal a change in the insider’s view of the company.
Insider Transaction Report
- Tax Payment
Common Stock
[F2][F1][F3]2026-06-15$191.60/sh−506$96,950→ 19,987 total
Footnotes (3)
- [F1]This forfeiture of shares for tax withholding purposes relates to the vesting on June 15, 2026 of service vesting restricted stock units granted to the executive in June 2023. The shares issued to the executive following the vesting were reduced by a number of shares having a value equal to the executive's tax withholding obligation with respect to the vested restricted stock units.
- [F2]Represents the closing price of the common stock on the date of the tax withholding.
- [F3]Of the shares held after this vesting event on June 15, 2026, 19,447 shares are issuable on vesting of restricted stock units granted to the reporting person under the 2012 Equity Incentive Plan and are subject to forfeiture.