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ACLS · Axcelis Technologies Inc

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TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475

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ACLS

Name: AXCELIS TECHNOLOGIES INC (ACLS) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

AXCELIS TECHNOLOGIES INC

INDUSTRIALS · SPECIAL INDUSTRY MACHINERY, NEC · CIK 0001113232

SEC FILINGS☆ WATCH

INSIDER NET · 180D

-$5.9M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

235

13F, latest reported quarter

REVENUE GROWTH

-17.6%

XBRL, annual

NET MARGIN

14.3%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$5.9M over 180 days

below 68% of Industrials

CONGRESS

no member of Congress has reported trading it

FUNDS

235 funds added or opened last quarter

more than 69% of Industrials

REVENUE

-17.6% year over year

below 92% of Industrials

MARGIN

14.3% net margin

more than 86% of Industrials

BUYBACKS

$244.0K repurchased, FY to 2026-06-30

below 95% of Industrials

SHORT

5.2% of shares outstanding short · 4.0 days to cover · settled 2026-07-31

more than 69% of Industrials

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Insiders are net sellers: -$5.9M across 13 people in 180 days.

235 funds added or opened positions in the latest 13F quarter, of 442 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +38.7%

+38.7%12M

INSIDER SELL

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

The complete filing record, in one place.

The record shows a net $5.9M sold by insiders over 180 days, 235 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

DELL ANET TDG TSLA PANW AXON STX KTOS CRCT OFLX JOBY FTNT

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, AXCELIS TECHNOLOGIES INC insiders sold a net $5.9M of stock across 132 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-04.

INSIDER

FILED

VALUE

Sayiner Necip

Director

SELL

2026-06-03

1,586.0

$249.7K

Mahoney Robert John

EVP Global Operations

SELL

2026-06-02

1,155.0

$179.3K

Sutton Todd

VP Corporate Controller

SELL

2026-05-27

2,000.0

$320.0K

St Dennis Thomas

Director

SELL

2026-05-22

900.0

$139.8K

Evans Eileen

EVP, General Counsel and Sec'y

SELL

2026-05-22

926.0

$144.0K

132 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 127 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

5,029,462.0 sh

$952.8M

FMR LLC

4,125,902.0 sh

$781.7M

VANGUARD PORTFOLIO MANAGEMENT LLC

2,478,878.0 sh

$469.6M

VANGUARD CAPITAL MANAGEMENT LLC

1,386,518.0 sh

$262.7M

STATE STREET CORP

1,231,109.0 sh

$233.2M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Reinhart Genesis PMV Fund

$24.2M POSITION · AS OF 2026-02-28

4.0%

Firsthand Alternative Energy Fund

$372.3K POSITION · AS OF 2026-03-31

3.4%

GMO Small Cap Quality Fund

$17.1M POSITION · AS OF 2026-02-28

2.5%

Needham Small Cap Growth Fund

$4.0M POSITION · AS OF 2026-03-31

2.3%

North Star Small Cap Value Fund

$610.7K POSITION · AS OF 2026-02-28

1.8%

GMO U.S. Small Cap Value Fund

$718.4K POSITION · AS OF 2026-02-28

1.7%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$839.0M	$1.0B	$1.1B	$920.0M
GROSS PROFIT	$376.8M	$454.7M	$491.3M	$401.8M
OPERATING INCOME	$119.3M	$210.8M	$265.8M	$212.4M
NET INCOME	$120.2M	$201.0M	$246.3M	$183.1M
EPS (DILUTED)	3.80	6.15	7.43	5.46
OPERATING CASH FLOW	$118.3M	$140.8M	$156.9M	$215.6M
CASH	$145.5M	$123.5M	$167.3M	$185.6M
BUYBACKS	$121.1M	$60.5M	$52.5M	$57.5M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-04 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE