ACLS

AXCELIS TECHNOLOGIES INC

Special Industry Machinery, NECNasdaqLarge accelerated filer

Total Trades

82

Buys

2

Sells

76

Largest Trade

N/A

Insiders

16

Institutional Funds

313

Inst. Value

$1M+

Activist Filings

17

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Titinger JorgeDirectorSELL$50K–$100K1K$80.00Feb 23, 2026
Titinger JorgeDirectorSELL$100K–$500K2K$86.05Dec 18, 2025
Blumenstock Gerald MEVPSELL$100K–$500K3K$89.46Dec 12, 2025
KURTZWEIL JOHN TDirectorSELL$100K–$500K2K$61.93May 21, 2025
COOGAN JAMES GORDONEVP AND CFOBUY$1K–$15K100$112.23Feb 29, 2024
Lawson Douglas A.EVPBUY$50K–$100K500$111.04Feb 26, 2024
KEITHLEY JOSEPH PDirectorSELL$50K–$100K500$130.43Nov 13, 2023
Redinbo GregEVP Marketing and …SELL$100K–$500K600$180.18Sep 14, 2023
Titinger JorgeDirectorSELL$1M+7K$177.38Sep 7, 2023
Low RussellPresident and CEOSELL$500K+3K$179.25Sep 7, 2023
FALLON LYNNETTE CExecutive VPSELL$500K+3K$181.32Sep 7, 2023
Lawson Douglas A.EVPSELL$50K–$100K375$177.45Aug 7, 2023
KEITHLEY JOSEPH PDirectorSELL$50K–$100K500$181.75Jun 14, 2023
PUMA MARY GExecutive Chairper…SELL$1M+12K$181.80Jun 12, 2023
Quirk JeanneDirectorSELL$100K–$500K900$177.41Jun 12, 2023
Lawson Douglas A.EVPSELL$50K–$100K400$175.00Jun 12, 2023
Low RussellPresident and CEOSELL$500K+4K$173.41Jun 8, 2023
PUMA MARY GExecutive Chairper…SELL$1M+22K$173.58Jun 7, 2023
FALLON LYNNETTE CExecutive VPSELL$100K–$500K2K$172.73Jun 7, 2023
KEITHLEY JOSEPH PDirectorSELL$100K–$500K1K$173.00Jun 7, 2023
KEITHLEY JOSEPH PDirectorSELL$100K–$500K1K$163.50Jun 6, 2023
Lawson Douglas A.EVPSELL$15K–$50K200$153.00May 30, 2023
KEITHLEY JOSEPH PDirectorSELL$100K–$500K1K$152.21May 25, 2023
Low RussellPresident and CEOSELL$500K+5K$153.13May 25, 2023
PUMA MARY GExecutive Chairper…SELL$1M+20K$151.83May 25, 2023
FALLON LYNNETTE CExecutive VPSELL$100K–$500K2K$152.20May 25, 2023
BREWER KEVIN JCFOSELL$100K–$500K2K$148.00May 25, 2023
Lawson Douglas A.EVPSELL$50K–$100K550$144.82May 19, 2023
KEITHLEY JOSEPH PDirectorSELL$100K–$500K3K$139.79May 19, 2023
Redinbo GregEVP Marketing and …SELL$100K–$500K1K$135.00May 18, 2023
PUMA MARY GExecutive Chairper…SELL$1M+9K$141.52May 18, 2023
Lawson Douglas A.EVPSELL$500K+5K$141.05May 18, 2023
KURTZWEIL JOHN TDirectorSELL$100K–$500K3K$138.69May 18, 2023
FALLON LYNNETTE CExecutive VPSELL$100K–$500K2K$141.55May 18, 2023
Low RussellPresident and CEOGRANTN/A24KMay 16, 2023
Low RussellPresident and CEOSELL$1M+8K$130.76May 16, 2023
FALLON LYNNETTE CExecutive VPGRANTN/A5KMay 16, 2023
FALLON LYNNETTE CExecutive VPSELL$500K+4K$129.84May 16, 2023
BREWER KEVIN JCFOGRANTN/A3KMay 16, 2023
BREWER KEVIN JCFOSELL$500K+7K$130.84May 16, 2023
KEITHLEY JOSEPH PDirectorSELL$100K–$500K1K$131.00May 16, 2023
Chiu Tzu YinDirectorSELL$1M+15K$129.50May 16, 2023
KEITHLEY JOSEPH PDirectorSELL$100K–$500K3K$126.07May 15, 2023
KEITHLEY JOSEPH PDirectorGRANTN/A1KMay 15, 2023
PUMA MARY GExecutive Chairper…SELL$1M+22K$125.00May 11, 2023
BREWER KEVIN JCFOSELL$1M+11K$125.06May 11, 2023
Lawson Douglas A.EVPSELL$500K+6K$122.00May 10, 2023
Chiu Tzu YinDirectorSELL$1M+10K$118.50May 9, 2023
Chiu Tzu YinDirectorSELL$100K–$500K2K$127.12Feb 14, 2023
St Dennis ThomasDirectorSELL$1M+12K$127.02Feb 13, 2023
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

REINHART PARTNERS, LLC.

SC 13G · Feb 12, 2026

5.2%

1.6M shares

4.3%

1.3M shares

5.2%

1.7M shares

BlackRock, Inc.

SC 13G/A · Apr 29, 2025

15.3%

4.9M shares

The Vanguard Group

SC 13G/A · Jan 31, 2025

13.5%

4.4M shares

BlackRock, Inc.

SC 13G/A · Nov 8, 2024

16.4%

5.3M shares

BlackRock, Inc.

SC 13G/A · Oct 18, 2024

16.4%

5.3M shares

The Vanguard Group - 23-1945930

SC 13G/A · Feb 13, 2024

12.3%

4.0M shares

BlackRock, Inc.

SC 13G/A · Jan 19, 2024

18.6%

6.1M shares

The Vanguard Group - 23-1945930

SC 13G/A · Apr 10, 2023

10.8%

3.5M shares

Senvest Management, LLC

SC 13G/A · Feb 10, 2023

5.4%

1.8M shares

BlackRock, Inc.

SC 13G/A · Jan 26, 2023

16.2%

5.3M shares

BlackRock, Inc.

SC 13G/A · Jan 20, 2023

16.2%

5.3M shares

Senvest Management, LLC

SC 13G · Oct 26, 2022

5.1%

1.7M shares

95-3868081

SC 13G/A · Oct 7, 2022

5.0%

1.6M shares

95-3868081

SC 13G/A · Feb 10, 2022

6.3%

2.1M shares

BlackRock, Inc.

SC 13G/A · Jan 28, 2022

15.0%

5.0M shares

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