How many insider trades does FilingIQ track for ACLS?

FilingIQ tracks 910 Form 4 insider transactions for ACLS (AXCELIS TECHNOLOGIES INC), covering filings from Feb 17, 2015 onwards. 15 of those were filed in the last 90 days.

Are ACLS insiders net buyers or net sellers?

Across the full Form 4 history for ACLS, 17 transactions (2%) were open-market purchases and 235 (26%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does ACLS insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is ACLS in?

AXCELIS TECHNOLOGIES INC (ACLS) is classified in the Technology sector, specifically Semiconductor Equipment & Materials, with a current market capitalisation of $2.52B.

ACLS insider trading

NasdaqGS Technology

AXCELIS TECHNOLOGIES INC — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

910

Last 90 days

Buys / sells

2% / 26%

Market cap

$2.52B

About AXCELIS TECHNOLOGIES INC

Axcelis Technologies, Inc. designs, manufactures, and services ion implantation and other processing equipment used in the fabrication of semiconductor chips in the United States, Europe, and the Asia Pacific. The company offers high energy, high current, and medium current implanters for various application requirements. It also provides aftermarket lifecycle products and services, including used tools, spare parts, equipment upgrades, maintenance services, and customer training. The company sells its equipment and services to semiconductor chip manufacturers through its direct sales force. Axcelis Technologies, Inc. was founded in 1978 and is headquartered in Beverly, Massachusetts.

Company website: www.axcelis.com

ACLS insider activity at a glance

FilingIQ has scored 910 insider transactions for ACLS since Feb 17, 2015. The most recent filing in our index is dated May 13, 2026.

Across the full history, 17 open-market purchases and 235 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on ACLS insider trades is 63.1/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live ACLS trades on FilingIQ Raw filings on SEC EDGAR

Latest ACLS Form 4 filings

Low Russell President and CEO

S May 16, 2023

Most recent disclosures. Sign up to filter by score, transaction code, or insider role.

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13F funds holding ACLS

EAM Investors, LLC

$3.89M · 0.8% of AUM

Frequently asked

How many insider trades does FilingIQ track for ACLS?: FilingIQ tracks 910 Form 4 insider transactions for ACLS (AXCELIS TECHNOLOGIES INC), covering filings from Feb 17, 2015 onwards. 15 of those were filed in the last 90 days.
Are ACLS insiders net buyers or net sellers?: Across the full Form 4 history for ACLS, 17 transactions (2%) were open-market purchases and 235 (26%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does ACLS insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is ACLS in?: AXCELIS TECHNOLOGIES INC (ACLS) is classified in the Technology sector, specifically Semiconductor Equipment & Materials, with a current market capitalisation of $2.52B.

Methodology & sources

Every ACLS insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.