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
FALLON LYNNETTE CExecutive VPSELL$100K–$500K4K$127.67Feb 13, 2023
KEITHLEY JOSEPH PDirectorSELL$500K+6K$124.52Feb 13, 2023
Low RussellEVPSELL$1M+10K$125.72Feb 13, 2023
Titinger JorgeDirectorSELL$1M+8K$122.95Feb 13, 2023
PUMA MARY GPresident and CEOSELL$1M+25K$124.98Feb 13, 2023
Lawson Douglas A.EVPSELL$100K–$500K2K$122.47Feb 13, 2023
KEITHLEY JOSEPH PDirectorSELL$50K–$100K1K$86.24Dec 14, 2022
KURTZWEIL JOHN TDirectorSELL$100K–$500K3K$78.42Dec 9, 2022
PUMA MARY GPresident and CEOSELL$100K–$500K4K$80.31Dec 8, 2022
PUMA MARY GPresident and CEOSELL$100K–$500K4K$80.08Dec 5, 2022
KEITHLEY JOSEPH PDirectorSELL$50K–$100K1K$79.00Nov 30, 2022
Lawson Douglas A.EVPSELL$15K–$50K350$76.52Nov 28, 2022
PUMA MARY GPresident and CEOSELL$100K–$500K4K$80.01Nov 28, 2022
Bintz William JEVPSELL$500K+8K$79.24Nov 23, 2022
St Dennis ThomasDirectorSELL$100K–$500K3K$76.66Nov 18, 2022
BREWER KEVIN JCFOSELL$500K+7K$79.26Nov 15, 2022
FALLON LYNNETTE CExecutive VPSELL$100K–$500K4K$79.00Nov 15, 2022
KEITHLEY JOSEPH PDirectorSELL$100K–$500K2K$74.02Nov 14, 2022
Low RussellEVPSELL$500K+8K$73.64Nov 10, 2022
KEITHLEY JOSEPH PDirectorSELL$100K–$500K2K$79.37Aug 25, 2022
BREWER KEVIN JCFOSELL$500K+9K$75.35Aug 15, 2022
FAUBERT RICHARD JDirectorSELL$1M+15K$76.28Aug 12, 2022
PUMA MARY GPresident and CEOSELL$1M+13K$75.94Aug 12, 2022
FALLON LYNNETTE CExecutive VPSELL$100K–$500K4K$75.50Aug 12, 2022
Bintz William JEVPSELL$500K+13K$71.20Aug 12, 2022
Lawson Douglas A.EVPSELL$100K–$500K5K$74.69Aug 8, 2022
FALLON LYNNETTE CExecutive VPSELL$100K–$500K3K$71.85Mar 17, 2022
PUMA MARY GPresident and CEOSELL$500K+11K$69.23Mar 16, 2022
Lawson Douglas A.EVPSELL$500K+7K$70.20Mar 3, 2022
BREWER KEVIN JCFOSELL$500K+9K$70.89Mar 2, 2022
KEITHLEY JOSEPH PDirectorSELL$100K–$500K3K$69.05Feb 28, 2022
St Dennis ThomasDirectorSELL$100K–$500K3K$72.81Feb 10, 2022
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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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