Arkolith/Insider Trading/ACLS/Form 4

Low Russell

PRESIDENT AND CEO, DirectorAXCELIS TECHNOLOGIES INC (ACLS) · full profile →Form 4 · filed May 19, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
5
5 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
May 15, 2026Grant(A)19K—$0143K
May 15, 2026Grant(A)19K—$0163K
May 15, 2026Tax withholding(F)4K$155.18$577K159K
May 15, 2026Tax withholding(F)2K$155.18$267K157K
May 15, 2026Tax withholding(F)1K$155.18$225K156K

Transaction Codes

A
Grant / award
F
Shares withheld for taxes

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001689237-26-000012) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML