ACLS

Axcelis Technologies Inc

A maker of ion implantation equipment, the machines that fire charged particles into silicon wafers to build the chips inside phones, cars, and power electronics. Its flagship Purion line of implanters serves chipmakers worldwide, with a specialized Purion Power Series for silicon-carbide power devices. The company traces its roots to 1978, when founders launched Nova Associates in a shed that had once been a chicken hatchery; after joining Eaton Corporation, the business was spun off and rebranded as Axcelis in 2000.

CUSIP: 054540208TechnologyUS2 holders

Ownership Activity Financials Filings

Insiders

Ranked by how much each holding moved in the last 5 years

Insider

Puma Mary GEXECUTIVE CHAIRPERSON, Director · 36 transactions

237.0K-40.3%

as of May 2024

Granted 54.0K · Sold 146.0K

Low RussellPRESIDENT AND CEO, Director · 55 transactions

154.9K+124%

Granted 170.2K · Bought 440 · Sold 52.0K

Coogan James GordonEVP AND CFO · 11 transactions

37.1K—

Granted 40.0K · Bought 100

Redinbo GregEVP MARKETING AND APPLICATIONS · 33 transactions

35.1K—

Granted 31.9K · Sold 4.5K

Faubert Richard JDirector · 2 transactions

33.6K-26.8%

as of Aug 2022

Granted 2.7K · Sold 15.0K

Kurtzweil John TDirector · 11 transactions

33.0K-13%

Granted 10.7K · Sold 15.6K

Bintz William JEVP, Product Development · 11 transactions

33.0K-44.9%

as of Nov 2022

Granted 5.0K · Sold 21.3K

Evans EileenEVP, General Counsel and Sec'y · 8 transactions

31.3K—

Granted 33.6K · Sold 926

Tatnall ChristopherEVP Global Customer Operations · 21 transactions

27.6K—

Granted 26.1K · Sold 1.2K

Fallon Lynnette CEXECUTIVE VP, HR/LEGAL · 36 transactions

27.3K-53.3%

as of Jan 2025

Granted 19.9K · Sold 33.6K

Blumenstock Gerald MEVP, Research, Dev. & Eng. · 18 transactions

20.0K—

Granted 27.6K · Sold 5.2K

Brewer Kevin JEVP & Chief Financial Officer · 24 transactions

19.6K-71.6%

as of Dec 2023

Granted 15.6K · Sold 44.0K

St Dennis ThomasDirector · 10 transactions

17.7K-39.9%

Granted 10.7K · Sold 22.4K

Lawson Douglas A.EVP, CORPORATE MKTG & STRATEGY · 38 transactions

15.8K-63.9%

as of Jun 2024

Granted 13.9K · Bought 500 · Sold 28.1K

Mahoney Robert JohnEVP Global Operations · 12 transactions

14.4K—

Granted 5.6K · Sold 3.4K

Chiu Tzu YinDirector · 8 transactions

11.8K-57.5%

Granted 10.7K · Sold 26.7K

Quirk JeanneDirector · 9 transactions

11.4K—

Granted 14.1K · Sold 2.7K

Ryzhik DavidSVP Interim CFO · 3 transactions

10.0K—

Granted 3.1K

Vachani DiptiDirector · 5 transactions

9.1K—

as of May 2024

Granted 9.1K

Sayiner NecipDirector · 6 transactions

7.1K—

Granted 8.7K · Sold 1.6K

Sutton ToddVP Corporate Controller · 7 transactions

6.4K—

Granted 1.2K · Sold 4.6K

Titinger JorgeDirector · 12 transactions

5.9K-72.7%

Granted 10.7K · Sold 26.4K

Graves Gregory BDirector · 7 transactions

5.5K—

Granted 8.7K · Sold 3.2K

Keithley Joseph PDirector · 22 transactions

3.2K-89%

as of Dec 2023

Granted 4.0K · Sold 29.5K

Insider	Stake change	Holds now	Granted / vested	Bought	Sold
Puma Mary GEXECUTIVE CHAIRPERSON, Director · 36 transactions	-40.3%	237.0Kas of May 2024	54.0K	—	146.0K
Low RussellPRESIDENT AND CEO, Director · 55 transactions	+124%	154.9K	170.2K	440	52.0K
Coogan James GordonEVP AND CFO · 11 transactions	—	37.1K	40.0K	100	—
Redinbo GregEVP MARKETING AND APPLICATIONS · 33 transactions	—	35.1K	31.9K	—	4.5K
Faubert Richard JDirector · 2 transactions	-26.8%	33.6Kas of Aug 2022	2.7K	—	15.0K
Kurtzweil John TDirector · 11 transactions	-13%	33.0K	10.7K	—	15.6K
Bintz William JEVP, Product Development · 11 transactions	-44.9%	33.0Kas of Nov 2022	5.0K	—	21.3K
Evans EileenEVP, General Counsel and Sec'y · 8 transactions	—	31.3K	33.6K	—	926
Tatnall ChristopherEVP Global Customer Operations · 21 transactions	—	27.6K	26.1K	—	1.2K
Fallon Lynnette CEXECUTIVE VP, HR/LEGAL · 36 transactions	-53.3%	27.3Kas of Jan 2025	19.9K	—	33.6K
Blumenstock Gerald MEVP, Research, Dev. & Eng. · 18 transactions	—	20.0K	27.6K	—	5.2K
Brewer Kevin JEVP & Chief Financial Officer · 24 transactions	-71.6%	19.6Kas of Dec 2023	15.6K	—	44.0K
St Dennis ThomasDirector · 10 transactions	-39.9%	17.7K	10.7K	—	22.4K
Lawson Douglas A.EVP, CORPORATE MKTG & STRATEGY · 38 transactions	-63.9%	15.8Kas of Jun 2024	13.9K	500	28.1K
Mahoney Robert JohnEVP Global Operations · 12 transactions	—	14.4K	5.6K	—	3.4K
Chiu Tzu YinDirector · 8 transactions	-57.5%	11.8K	10.7K	—	26.7K
Quirk JeanneDirector · 9 transactions	—	11.4K	14.1K	—	2.7K
Ryzhik DavidSVP Interim CFO · 3 transactions	—	10.0K	3.1K	—	—
Vachani DiptiDirector · 5 transactions	—	9.1Kas of May 2024	9.1K	—	—
Sayiner NecipDirector · 6 transactions	—	7.1K	8.7K	—	1.6K
Sutton ToddVP Corporate Controller · 7 transactions	—	6.4K	1.2K	—	4.6K
Titinger JorgeDirector · 12 transactions	-72.7%	5.9K	10.7K	—	26.4K
Graves Gregory BDirector · 7 transactions	—	5.5K	8.7K	—	3.2K
Keithley Joseph PDirector · 22 transactions	-89%	3.2Kas of Dec 2023	4.0K	—	29.5K

Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.