AXCELIS TECHNOLOGIES INC·4

May 18, 5:05 PM ET

Chiu Tzu Yin 4

4 · AXCELIS TECHNOLOGIES INC · Filed May 18, 2026

Research Summary

AI-generated summary of this filing

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Axcelis (ACLS) Director Chiu Tzu Yin Receives Award

What Happened
Chiu Tzu Yin, a director of Axcelis Technologies, was granted 1,440 restricted stock units (RSUs) on May 15, 2026. The RSUs were issued at $0.00 (an award, not a purchase) and are subject to forfeiture until they vest. No cash changed hands at grant.

Key Details

  • Transaction date: May 15, 2026; Form 4 filed May 18, 2026 (three days after the grant).
  • Award: 1,440 RSUs issued at $0.00.
  • Vesting: These RSUs are scheduled to vest on May 15, 2027, contingent on completion of the director’s current term (Footnote F1).
  • Shares held after transaction: The filing notes that, as of May 15, 2026, 1,440 shares were issuable on vesting of RSUs and are subject to forfeiture (Footnote F2).
  • Filing status: No indication in the filing that this was a late Form 4 submission.

Context
This was a compensation award to a board member rather than an open-market purchase or sale. Awards like RSUs are common director compensation and do not by themselves indicate insider sentiment about the stock.

Insider Transaction Report

Form 4
Period: 2026-05-15
Chiu Tzu Yin
Director
Transactions
  • Award

    Common Stock

    [F1][F2]
    2026-05-15+1,44011,843 total
Footnotes (2)
  • [F1]These shares are issuable on vesting of restricted stock units granted under the Company's 2012 Equity Incentive Plan on May 15, 2026. Assuming completion of the director's current term of service on the Board of Directors, these restricted stock units will vest on May 15, 2027.
  • [F2]Of the shares held as of May 15, 2026, 1,440 were issuable on vesting of restricted stock units granted to the director under the 2012 Equity Incentive Plan and are subject to forfeiture.
Signature
/s/ Eileen J. Evans, Attorney-in-Fact|2026-05-18

Documents

1 file
  • 4
    form4-05182026_050501.xmlPrimary