Welcome to our dedicated page for Axcelis Tech Ord SEC filings (Ticker: ACLS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Axcelis Technologies filings document the formal disclosures of a semiconductor equipment company focused on ion implantation systems and lifecycle support. Its Form 8-K reports cover operating results, material events, financial-condition updates, executive officer changes and annual-meeting voting results.
Proxy materials describe board elections, stockholder voting mechanics, independent auditor ratification, executive compensation and share ownership by directors, officers and significant holders. The filing record also includes disclosures related to material agreements, governance matters and capital-structure subjects tied to the company’s common stock and public-company reporting obligations.
Axcelis Technologies SVP and Interim CFO David Ryzhik reported a routine tax-withholding share disposition tied to equity compensation. On June 16, 2026, 76 shares of common stock were withheld at a price of $176.845 per share to cover taxes on vesting restricted stock units granted in June 2025.
After this vesting event, Ryzhik directly held 9,955 shares, including 8,439 shares issuable upon future vesting of restricted stock units under the 2012 Equity Incentive Plan that remain subject to forfeiture. The transaction reflects tax withholding rather than an open-market sale.
AXCELIS TECHNOLOGIES INC executive Gerald M. Blumenstock had 506 common shares withheld for taxes tied to vesting restricted stock units. On June 15, 2026, shares from RSUs granted in June 2023 vested, and part of the issued shares was forfeited to satisfy his tax withholding obligation.
After this tax-withholding disposition, he directly holds 19,987 common shares. Footnotes state that 19,447 additional shares are issuable upon future vesting of restricted stock units under the 2012 Equity Incentive Plan and remain subject to forfeiture.
Axcelis Technologies director Necip Sayiner sold common stock in an open-market transaction. On June 3, 2026, he sold 1,586 shares at a weighted-average price of $157.4422 per share, with individual trade prices ranging from $157.41 to $157.71. Following this sale, he directly holds 7,112 shares of Axcelis common stock. Of these holdings, 2,110 shares are issuable upon vesting of restricted stock units granted under the 2012 Equity Incentive Plan and remain subject to forfeiture.
Axcelis Technologies EVP Global Operations Robert John Mahoney sold shares of company stock in an open-market trade. On June 2, 2026, he sold 1,155 shares of common stock at an average price of $155.24 per share.
After this sale, he directly holds 14,410 shares, including 12,578 shares issuable upon vesting of restricted stock units granted under the 2012 Equity Incentive Plan, which remain subject to forfeiture. The transaction modestly reduces his direct common stock position while leaving a substantial equity stake tied to both owned shares and unvested awards.
ACLS submitted a Form 144 reporting 1,586 shares of Common Stock for disposition. The filing notes the shares related to restricted stock vesting under a registered plan with the transaction dated 05/15/2026 and the Form 144 dated 06/03/2026.
The notice lists Morgan Stanley Smith Barney LLC as the broker and identifies trading on NASDAQ. The filing describes an issuer-related disposition method tied to plan vesting.
Morgan Stanley Smith Barney LLC Executive Financial Services filed a notice under Form 144 reporting restricted common shares vesting and a recent small sale. The filer lists 824 shares vesting on 05/15/2026 and 331 shares vesting on 05/16/2026. The excerpt also shows 2,258 shares sold on 05/12/2026 for $363,538.
Axcelis Technologies executive Todd Sutton, VP Corporate Controller, reported an open-market sale of 2,000 shares of common stock on May 27, 2026 at $159.99 per share. Following this transaction, he directly holds 6,360 shares, including 4,582 shares that are issuable upon vesting of restricted stock units granted under the 2012 Equity Incentive Plan and subject to forfeiture. This filing shows a relatively small insider sale alongside a meaningful portion of unvested equity awards that continue to tie his compensation to the company’s future performance.
ACLS Rule 144 notice lists restricted stock vesting events and a recent sale. The filing shows multiple restricted-stock vesting entries dated 05/16/2024, 05/17/2024, 05/16/2025, 05/15/2025, and 05/17/2025 with per-event share counts shown. It also discloses a sale of 2,574 shares on 05/14/2026 producing $421,748.87 in proceeds.
Axcelis Technologies director Thomas St. Dennis reported an open-market sale of 900 shares of common stock at $155.37 per share on May 22, 2026.
After this transaction he held 17,695 shares, including 1,440 shares issuable upon vesting of restricted stock units that remain subject to forfeiture.
AXCELIS TECHNOLOGIES INC executive Eileen Evans reported an open-market sale of 926 shares of Common Stock. The transaction occurred on May 22, 2026 at a price of $155.5053 per share. After the sale, she directly held 31,295 shares.
According to a footnote, 29,823 of the shares held after this sale are issuable upon vesting of restricted stock units granted under the 2012 Equity Incentive Plan and remain subject to forfeiture. This indicates most of her reported position consists of unvested equity awards rather than fully vested, unrestricted shares.