InsiderFlow

ACLS

Axcelis Technologies, Inc.$181.31+7.74 (+4.46%)
Prev Close$173.57·MCap$5.33B·P/E47.84·Vol494.3K·Yield

Buys (12M)

0

$0.00

Sells (12M)

26

$6.41M

Net Activity

Net Seller

$6.41M

Active Insiders

14

last 12 mo

Over the past 12 months, insider activity at Axcelis Technologies, Inc. (ACLS) has been exclusively selling, with 0 insider purchases totaling $0.00 and 26 insider sales totaling $6.41M. The most recent insider transaction was by Sayiner Necip (director), who sold $249.7K worth of shares on Jun 4, 2026. Axcelis Technologies, Inc. operates in the Technology sector, within the Semiconductors industry, with a market cap of $5.33B.

ACLS Insider Trading Activity

DateInsiderTypeValue
Jun 4, 2026 Sayiner NecipSell$249.7K
May 28, 2026 Sutton ToddSell$320.0K
May 26, 2026 St Dennis ThomasSell$139.8K
May 22, 2026 Evans EileenSell$144.0K
May 22, 2026 Blumenstock Gerald MSell$177.3K
May 21, 2026 Tatnall ChristopherSell$174.6K
May 20, 2026 Quirk JeanneSell$250.9K
May 20, 2026 GRAVES GREGORY BSell$456.7K
May 20, 2026 KURTZWEIL JOHN TSell$485.8K
May 15, 2026 Sutton ToddSell$421.9K
May 15, 2026 Blumenstock Gerald MSell$164.8K
May 14, 2026 Redinbo GregSell$463.7K
May 14, 2026 Titinger JorgeSell$328.3K
May 13, 2026 Mahoney Robert JohnSell$363.5K
May 7, 2026 Low RussellSell$1.17M
May 4, 2026 Low RussellSell$172.7K
Mar 26, 2026 Low RussellSell$112.0K
Feb 20, 2026 Titinger JorgeSell$80.0K
Dec 17, 2025 Titinger JorgeSell$172.1K
Dec 16, 2025 Evans EileenSell$118.9K
Dec 11, 2025 Blumenstock Gerald MSell$271.4K
Oct 16, 2025 COOGAN JAMES GORDONSell$59.6K
Sep 15, 2025 Redinbo GregSell$18.2K
Sep 15, 2025 Tatnall ChristopherSell$12.0K
Jun 16, 2025 Blumenstock Gerald MSell$34.9K
Jun 16, 2025 Redinbo GregSell$50.6K
May 20, 2025 KURTZWEIL JOHN TSell$104.2K
May 16, 2025 Low RussellSell$102.6K
May 16, 2025 Redinbo GregSell$11.7K
May 15, 2025 COOGAN JAMES GORDONSell$36.0K
May 15, 2025 Low RussellSell$199.0K
May 15, 2025 Redinbo GregSell$24.2K
May 15, 2025 Tatnall ChristopherSell$32.3K
Apr 21, 2025 Tatnall ChristopherSell$41.0K
Feb 28, 2025 Blumenstock Gerald MSell$41.0K
Feb 28, 2025 COOGAN JAMES GORDONSell$97.9K
Feb 28, 2025 Low RussellSell$500.5K
Feb 28, 2025 Redinbo GregSell$66.8K
Feb 28, 2025 Tatnall ChristopherSell$62.8K
Jan 3, 2025 FALLON LYNNETTE CSell$221.9K
Oct 16, 2024 COOGAN JAMES GORDONSell$41.4K
Sep 16, 2024 Redinbo GregSell$23.3K
Sep 16, 2024 Tatnall ChristopherSell$8.2K
Aug 6, 2024 Titinger JorgeSell$669.3K
Jun 20, 2024 Lawson Douglas A.Sell$189.9K
Jun 17, 2024 Blumenstock Gerald MSell$42.5K
Jun 17, 2024 Redinbo GregSell$107.2K
Jun 5, 2024 FALLON LYNNETTE CSell$30.3K
Jun 5, 2024 Low RussellSell$43.1K
May 20, 2024 KURTZWEIL JOHN TSell$137.3K
1 / 4

ACLS Insider Buying Activity

The following table shows recent insider purchases of Axcelis Technologies, Inc. (ACLS) stock reported via SEC Form 4 filings.

No insider buying activity found for ACLS in the last 12 months.

ACLS Insider Selling Activity

The following table shows recent insider sales of Axcelis Technologies, Inc. (ACLS) stock reported via SEC Form 4 filings.

DateInsiderTypeValue
Jun 4, 2026 Sayiner NecipSell$249.7K
May 28, 2026 Sutton ToddSell$320.0K
May 26, 2026 St Dennis ThomasSell$139.8K
May 22, 2026 Evans EileenSell$144.0K
May 22, 2026 Blumenstock Gerald MSell$177.3K
May 21, 2026 Tatnall ChristopherSell$174.6K
May 20, 2026 Quirk JeanneSell$250.9K
May 20, 2026 GRAVES GREGORY BSell$456.7K
May 20, 2026 KURTZWEIL JOHN TSell$485.8K
May 15, 2026 Sutton ToddSell$421.9K
May 15, 2026 Blumenstock Gerald MSell$164.8K
May 14, 2026 Redinbo GregSell$463.7K
May 14, 2026 Titinger JorgeSell$328.3K
May 13, 2026 Mahoney Robert JohnSell$363.5K
May 7, 2026 Low RussellSell$1.17M
May 4, 2026 Low RussellSell$172.7K
Mar 26, 2026 Low RussellSell$112.0K
Feb 20, 2026 Titinger JorgeSell$80.0K
Dec 17, 2025 Titinger JorgeSell$172.1K
Dec 16, 2025 Evans EileenSell$118.9K
Dec 11, 2025 Blumenstock Gerald MSell$271.4K
Oct 16, 2025 COOGAN JAMES GORDONSell$59.6K
Sep 15, 2025 Redinbo GregSell$18.2K
Sep 15, 2025 Tatnall ChristopherSell$12.0K
Jun 16, 2025 Blumenstock Gerald MSell$34.9K
Jun 16, 2025 Redinbo GregSell$50.6K
May 20, 2025 KURTZWEIL JOHN TSell$104.2K
May 16, 2025 Low RussellSell$102.6K
May 16, 2025 Redinbo GregSell$11.7K
May 15, 2025 COOGAN JAMES GORDONSell$36.0K
May 15, 2025 Low RussellSell$199.0K
May 15, 2025 Redinbo GregSell$24.2K
May 15, 2025 Tatnall ChristopherSell$32.3K
Apr 21, 2025 Tatnall ChristopherSell$41.0K
Feb 28, 2025 Blumenstock Gerald MSell$41.0K
Feb 28, 2025 COOGAN JAMES GORDONSell$97.9K
Feb 28, 2025 Low RussellSell$500.5K
Feb 28, 2025 Redinbo GregSell$66.8K
Feb 28, 2025 Tatnall ChristopherSell$62.8K
Jan 3, 2025 FALLON LYNNETTE CSell$221.9K
Oct 16, 2024 COOGAN JAMES GORDONSell$41.4K
Sep 16, 2024 Redinbo GregSell$23.3K
Sep 16, 2024 Tatnall ChristopherSell$8.2K
Aug 6, 2024 Titinger JorgeSell$669.3K
Jun 20, 2024 Lawson Douglas A.Sell$189.9K
Jun 17, 2024 Blumenstock Gerald MSell$42.5K
Jun 17, 2024 Redinbo GregSell$107.2K
Jun 5, 2024 FALLON LYNNETTE CSell$30.3K
Jun 5, 2024 Low RussellSell$43.1K
May 20, 2024 KURTZWEIL JOHN TSell$137.3K

ACLS Insiders

Sayiner Necip

director

Sold $249.7K
1 tradesLast: Jun 4, 2026
Sutton Todd

officer: VP Corporate Controller

Sold $741.8K
2 tradesLast: May 28, 2026
St Dennis Thomas

Director

Sold $2.29M
5 tradesLast: May 26, 2026
Blumenstock Gerald M

officer: EVP, Research, Dev. & Eng.

Sold $731.8K
6 tradesLast: May 22, 2026
Evans Eileen

officer: EVP, General Counsel and Sec'y

Sold $262.9K
2 tradesLast: May 22, 2026
Tatnall Christopher

officer: EVP Global Customer Operations

Sold $342.5K
7 tradesLast: May 21, 2026
Quirk Jeanne

Director

Sold $410.5K
2 tradesLast: May 20, 2026
GRAVES GREGORY B

director

Sold $456.7K
1 tradesLast: May 20, 2026
KURTZWEIL JOHN T

Director

Sold $1.56M
6 tradesLast: May 20, 2026
Redinbo Greg

officer: EVP MARKETING AND APPLICATIONS

Sold $1.24M
13 tradesLast: May 14, 2026
Titinger Jorge

Director

Sold $3.66M
7 tradesLast: May 14, 2026
Mahoney Robert John

officer: EVP Global Operations

Sold $363.5K
1 tradesLast: May 13, 2026
Low Russell

PRESIDENT AND CEO

Bought $49.5KSold $8.61M
20 tradesLast: May 7, 2026
COOGAN JAMES GORDON

EVP AND CFO

Bought $11.2KSold $234.9K
5 tradesLast: Oct 16, 2025
FALLON LYNNETTE C

EXECUTIVE VP, HR/LEGAL AND GEN

Sold $5.42M
18 tradesLast: Jan 3, 2025
Lawson Douglas A.

EVP, CORPORATE MKTG & STRATEGY

Bought $55.5KSold $4.99M
22 tradesLast: Jun 20, 2024
PUMA MARY G

President and CEO

Sold $27.18M
17 tradesLast: May 9, 2024
KEITHLEY JOSEPH P

Director

Sold $3.52M
17 tradesLast: Dec 14, 2023
BREWER KEVIN J

EVP & Chief Financial Officer

Sold $6.59M
10 tradesLast: May 25, 2023
Chiu Tzu Yin

Director

Sold $3.34M
3 tradesLast: May 16, 2023
Bintz William J

EVP, Product Development

Sold $3.16M
5 tradesLast: Nov 23, 2022
FAUBERT RICHARD J

Director

Sold $1.14M
1 tradesLast: Aug 12, 2022
George Arthur L Jr

Director

Sold $370.4K
1 tradesLast: Feb 25, 2021