Form4insider filings, from the source

Company · CIK 0001113232 · SIC 3559 — Special Industry Machinery, NEC · Nasdaq

AXCELIS TECHNOLOGIES INC · ACLS

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $429k · 2net −$429k
$10k$10k$100k$100k$1M$1MbuyssalesSep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 15, 2026 FForm 4 →Sep 16, 5:05 pm EDTGreg RedinboEVP and Chief Strategy Officer208$105.04$21,84834,816—
Sep 15, 2026 FForm 4 →Sep 16, 5:05 pm EDTChristopher TatnallEVP Global Customer Operations136$105.04$14,28527,491—
Jul 15, 2026 FForm 4 →Jul 17, 5:05 pm EDTDavid RyzhikSVP Interim CFO221$145.01$32,0479,790—
Jun 16, 2026 FForm 4 →Jun 17, 5:05 pm EDTDavid RyzhikSVP Interim CFO76$176.85$13,4409,955—
Jun 15, 2026 FForm 4 →Jun 16, 5:05 pm EDTGerald M BlumenstockEVP, Research, Dev. & Eng.506$191.60$96,95019,987—
Jun 3, 2026 SForm 4 →Jun 4, 5:05 pm EDTNecip SayinerDirector1,586$157.44$249,7037,112−18.2%
Jun 2, 2026 SForm 4 →Jun 3, 5:05 pm EDTRobert John MahoneyEVP Global Operations1,155$155.24$179,30214,410−7.42%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.