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AXCELIS TECHNOLOGIES INC (ACLS)
Institutional ownership, SEC filings and insider activity
Sector: Technology · SEC CIK 0001113232 · EDGAR filings · Updated 2026-07-17
AXCELIS TECHNOLOGIES INC (ACLS) has reported institutional ownership of 105.9%, with 373 institutional managers holding positions valued at $3.03B per the latest 13F reporting period.
Institutional ownership
105.9%
Institutional managers
373
Reported 13F value
$3.03B
Insider activity
49 trans.
−$739.6K net selling
Latest updates
- 2026-07-17 — Insider transaction reported (Form 4)
- 2026-07-14 — SCHEDULE 13G/A filed
- 2026-06-17 — Insider transaction reported (Form 4)
- 2026-06-16 — Insider transaction reported (Form 4)
- 2026-06-04 — Insider transaction reported (Form 4)
- 2026-06-03 — Insider transaction reported (Form 4)
Institutional ownership overview
According to SEC 13F filings tracked by Sightfile, AXCELIS TECHNOLOGIES INC has 373 institutional holders and institutional ownership of 105.9%.
Insider activity
Insiders reported 49 transactions (0 buys, 5 sells) across 16 reporting insiders, with a net reported value of −$739.6K.
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See full history, cross-references and alerts on SightfileSightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-17.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-17.