Key facts
- This page summarizes Gregory B. Graves's Form 4 filing for AXCELIS TECHNOLOGIES INC (ACLS).
- 2 reported transactions and 0 derivative rows are listed below.
- Accepted by SEC: 20 May 2026, 17:05.
Gregory B. Graves - 19 May 2026 Form 4 Insider Report for AXCELIS TECHNOLOGIES INC (ACLS)
- Reporting relationship
- Director
- Issuer ticker
- ACLS
- Reported as of
- 19 May 2026
- Net transaction value
- -$456,697
- SEC form
- 4
- Accepted by SEC
- 20 May 2026, 17:05:21 UTC
- Prior SEC filing
- 18 May 2026
- Next SEC filing
- 29 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Eileen J. Evans, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Gregory B. Graves filed Form 4 for AXCELIS TECHNOLOGIES INC (ACLS) on 20 May 2026.
Change
- Previous filing in this sequence was filed on 18 May 2026.
- Current net transaction value: -$456,697.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001208109
Primary reporting owner
GRAVES GREGORY B
- Relationship
- Director
- Address
- C/O AXCELIS TECHNOLOGIES, INC., 108 CHERRY HILL DRIVE, BEVERLY
- Signature
- /s/ Eileen J. Evans, Attorney-in-Fact
- Signature date
- 20 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ACLS
transaction
Common Stock
Sale
- Transaction value
- $371,188
- Shares
- -2,625
- Change %
- -30%
- Price
- $141.41
- Shares after
- 6,073
- Date
- 19 May 2026
- Ownership
- Direct
- Footnotes
- F1, F2
ACLS
transaction
Common Stock
Sale
- Transaction value
- $85,509
- Shares
- -600
- Change %
- -9.9%
- Price
- $142.51
- Shares after
- 5,473
- Date
- 19 May 2026
- Ownership
- Direct
- Footnotes
- F3, F4
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 4 footnotes
Footnote F1
The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $141.3301 to $141.6000, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
Footnote F2
Of the shares held after this sale on May 19, 2026, 2,110 shares were issuable on vesting of restricted stock units granted to the reporting person under the 2012 Equity Incentive Plan and are subject to forfeiture.
Footnote F3
The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $142.4400 to $142.6400, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
Footnote F4
Of the shares held after this sale on May 19, 2026, 2,110 shares were issuable on vesting of restricted stock units granted to the reporting person under the 2012 Equity Incentive Plan and are subject to forfeiture.