ACLS Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 0.48%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $104,166.26

Axcelis Technologies Insider Trading History Chart

Axcelis Technologies Share Price & Price History

^$89.10

▲ +1.08 (1.23%)

As of 12/4/2025 05:00 PM ET

Days: 30 | 90 | 365

Axcelis Technologies Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
5/20/2025	John T. Kurtzweil	Director	Sell	1,682	$61.93	$104,166.26	35,050
8/6/2024	Jorge Titinger	Director	Sell	6,086	$109.98	$669,338.28	5,891
5/20/2024	John T. Kurtzweil	Director	Sell	1,200	$114.42	$137,304.00	33,146
2/23/2024	Douglas A Lawson	EVP	Buy	500	$111.04	$55,520.00	19,648
11/10/2023	Joseph P Keithley	Director	Sell	500	$130.43	$65,215.00	4,157
9/14/2023	Greg Redinbo	EVP	Sell	600	$180.18	$108,108.00	17,203
8/7/2023	Douglas A Lawson	EVP	Sell	375	$177.45	$66,543.75	18,342
6/12/2023	Jeanne Quirk	Director	Sell	900	$177.41	$159,669.00	7,782
6/12/2023	Mary G Puma	Insider	Sell	11,800	$181.80	$2,145,240.00	263,058
6/9/2023	Douglas A Lawson	EVP	Sell	400	$175.00	$70,000.00	18,717
6/7/2023	Lynnette C Fallon	VP	Sell	1,584	$172.73	$273,604.32	34,469
6/7/2023	Mary G Puma	Insider	Sell	21,701	$173.58	$3,766,859.58	278,985
6/6/2023	Joseph P Keithley	Director	Sell	1,000	$163.50	$163,500.00	5,657
5/26/2023	Douglas A Lawson	EVP	Sell	200	$153.00	$30,600.00	19,117
5/25/2023	Joseph P Keithley	Director	Sell	1,000	$152.21	$152,210.00	9,657
5/18/2023	John T. Kurtzweil	Director	Sell	2,689	$138.69	$372,937.41	32,684
5/18/2023	Lynnette C Fallon	VP	Sell	2,410	$141.55	$341,135.50	37,934
5/18/2023	Mary G Puma	Insider	Sell	8,578	$141.52	$1,213,958.56	320,408
5/17/2023	Greg Redinbo	EVP	Sell	1,000	$135.00	$135,000.00	18,537
5/16/2023	Kevin J. Brewer	CFO	Sell	6,505	$130.84	$851,114.20	29,005
5/16/2023	Lynnette C Fallon	VP	Sell	4,120	$129.84	$534,940.80	41,844
5/16/2023	Russell Low	CEO	Sell	8,309	$130.76	$1,086,484.84	71,239
5/15/2023	Joseph P Keithley	Director	Sell	3,000	$126.07	$378,210.00	10,375
5/11/2023	Kevin J. Brewer	CFO	Sell	10,546	$125.06	$1,318,882.76	36,277
5/11/2023	Mary G Puma	Insider	Sell	21,705	$125.00	$2,713,125.00	332,412
5/10/2023	Douglas A Lawson	EVP	Sell	5,734	$122.00	$699,548.00	35,205
5/9/2023	Tzu Yin Chiu	Director	Sell	10,000	$118.50	$1,185,000.00	18,873
2/1/2023	Tzu Yin Chiu	Director	Sell	1,700	$127.12	$216,104.00	28,873
12/8/2022	Mary G Puma	CEO	Sell	4,202	$80.31	$337,462.62	393,511
12/5/2022	Mary G Puma	CEO	Sell	2,697	$80.12	$216,083.64	397,713
12/1/2022	Mary G Puma	CEO	Sell	1,500	$80.02	$120,030.00	400,410

SEC Filings (Institutional Ownership Changes) for Axcelis Technologies (NASDAQ:ACLS)

89.98% of Axcelis Technologies stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Axcelis Technologies Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/25/2025	KERR FINANCIAL PLANNING Corp	2,425	$0.24M	0.3%	N/A	0.008%
11/21/2025	CIBC Bancorp USA Inc.	3,437	$0.34M	0.0%	N/A	0.011%
11/19/2025	Mizuho Markets Cayman LP	15,616	$1.53M	0.1%	-63.2%	0.050%
11/18/2025	Advisory Services Network LLC	323	$32K	0.0%	N/A	0.001%
11/17/2025	Morningstar Investment Management LLC	10,027	$0.98M	0.0%	N/A	0.032%
11/17/2025	NewEdge Advisors LLC	1,045	$0.10M	0.0%	+5,705.6%	0.003%
11/17/2025	CANADA LIFE ASSURANCE Co	32,985	$3.19M	0.0%	-7.2%	0.106%
11/17/2025	Virtus Advisers LLC	2,221	$0.22M	0.1%	N/A	0.007%
11/17/2025	Voloridge Investment Management LLC	95,227	$9.30M	0.0%	-69.5%	0.307%
11/17/2025	Wexford Capital LP	570	$56K	0.0%	-21.9%	0.002%
11/17/2025	Verition Fund Management LLC	35,776	$3.49M	0.0%	-28.8%	0.115%
11/17/2025	Mariner LLC	14,529	$1.42M	0.0%	-8.7%	0.047%
11/17/2025	Moors & Cabot Inc.	8,430	$0.82M	0.0%	+10.5%	0.027%
11/17/2025	Mercer Global Advisors Inc. ADV	2,770	$0.27M	0.0%	N/A	0.009%
11/17/2025	Millennium Management LLC	261,776	$25.56M	0.0%	+143.8%	0.844%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	14,980	$1.46M	0.0%	-15.2%	0.048%
11/17/2025	Holocene Advisors LP	13,887	$1.36M	0.0%	-61.2%	0.045%
11/17/2025	Gotham Asset Management LLC	11,015	$1.08M	0.0%	-19.2%	0.036%
11/17/2025	Focus Partners Wealth	4,206	$0.41M	0.0%	N/A	0.014%
11/17/2025	Brevan Howard Capital Management LP	13,818	$1.35M	0.0%	-48.8%	0.045%
11/17/2025	Clark Capital Management Group Inc.	96,588	$9.43M	0.1%	+14.2%	0.312%
11/17/2025	Bridgefront Capital LLC	9,895	$0.97M	0.3%	N/A	0.032%
11/17/2025	Bank of America Corp DE	410,314	$40.06M	0.0%	-41.7%	1.324%
11/17/2025	Algert Global LLC	31,110	$3.04M	0.1%	+81.9%	0.100%
11/17/2025	Alliancebernstein L.P.	69,644	$6.80M	0.0%	-2.7%	0.225%
11/17/2025	Ameriprise Financial Inc.	118,133	$11.54M	0.0%	-3.4%	0.381%
11/14/2025	Schonfeld Strategic Advisors LLC	37,637	$3.68M	0.0%	+89.3%	0.121%
11/14/2025	Creative Planning	72,634	$7.09M	0.0%	+8.1%	0.234%
11/14/2025	Zacks Investment Management	20,213	$1.97M	0.0%	N/A	0.065%
11/14/2025	Raymond James Financial Inc.	14,695	$1.44M	0.0%	-12.2%	0.047%
11/14/2025	Amundi	34,018	$3.32M	0.0%	+535.5%	0.110%
11/14/2025	Man Group plc	5,979	$0.58M	0.0%	N/A	0.019%
11/14/2025	Horizon Investments LLC	7,194	$0.70M	0.0%	N/A	0.023%
11/14/2025	Zurcher Kantonalbank Zurich Cantonalbank	11,326	$1.11M	0.0%	+7.4%	0.037%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	66,098	$6.45M	0.0%	-40.7%	0.213%
11/14/2025	Two Sigma Investments LP	37,165	$3.63M	0.0%	+3.5%	0.120%
11/14/2025	Soviero Asset Management LP	31,000	$3.03M	1.6%	-35.4%	0.100%
11/14/2025	Bridgeway Capital Management LLC	31,000	$3.03M	0.1%	N/A	0.100%
11/14/2025	Vident Advisory LLC	13,666	$1.33M	0.0%	-18.4%	0.044%
11/14/2025	Ossiam	40,700	$3.97M	0.1%	N/A	0.131%
11/14/2025	iSAM Funds UK Ltd	973	$95K	0.0%	-91.4%	0.003%
11/14/2025	Comerica Bank	9,721	$0.95M	0.0%	-17.0%	0.031%
11/14/2025	F m Investments LLC	21,068	$2.06M	0.1%	N/A	0.068%
11/13/2025	Boston Partners	468,741	$44.90M	0.0%	-1.1%	1.512%
11/13/2025	Vise Technologies Inc.	2,733	$0.27M	0.0%	-4.8%	0.009%
11/13/2025	Kennedy Capital Management LLC	183,100	$17.88M	0.4%	+37.5%	0.591%
11/13/2025	Arrowstreet Capital Limited Partnership	117,797	$11.50M	0.0%	N/A	0.380%
11/13/2025	Invesco Ltd.	386,735	$37.76M	0.0%	+176.6%	1.248%
11/13/2025	Sei Investments Co.	14,076	$1.37M	0.0%	+35.2%	0.045%
11/13/2025	UBS Group AG	127,323	$12.43M	0.0%	-35.7%	0.411%
11/13/2025	BNP Paribas Financial Markets	283,926	$27.72M	0.0%	+47.7%	0.916%
11/13/2025	Mackenzie Financial Corp	4,157	$0.41M	0.0%	-34.5%	0.013%
11/13/2025	Magnetar Financial LLC	4,618	$0.45M	0.0%	-20.0%	0.015%
11/13/2025	Quadrant Capital Group LLC	952	$93K	0.0%	N/A	0.003%
11/13/2025	Legal & General Group Plc	83,016	$8.11M	0.0%	-6.3%	0.268%
11/13/2025	Vestcor Inc	4,286	$0.42M	0.0%	-36.4%	0.014%
11/13/2025	Swiss National Bank	62,300	$6.08M	0.0%	+1.3%	0.201%
11/13/2025	WINTON GROUP Ltd	14,468	$1.41M	0.1%	-73.4%	0.047%
11/13/2025	Russell Investments Group Ltd.	4,239	$0.41M	0.0%	-62.7%	0.014%
11/13/2025	Inceptionr LLC	2,267	$0.22M	0.1%	N/A	0.007%
11/13/2025	Private Advisor Group LLC	45,895	$4.48M	0.0%	-5.6%	0.148%
11/13/2025	Grantham Mayo Van Otterloo & Co. LLC	443,863	$43.34M	0.1%	+0.4%	1.432%
11/13/2025	First Trust Advisors LP	55,243	$5.39M	0.0%	-21.1%	0.178%
11/12/2025	Barclays PLC	69,585	$6.79M	0.0%	-11.1%	0.224%
11/12/2025	Crossmark Global Holdings Inc.	2,356	$0.23M	0.0%	N/A	0.008%
11/12/2025	Dimensional Fund Advisors LP	769,612	$75.14M	0.0%	+4.6%	2.483%
11/12/2025	Cresset Asset Management LLC	2,592	$0.25M	0.0%	N/A	0.008%
11/12/2025	First Eagle Investment Management LLC	130,358	$12.73M	0.0%	+78.6%	0.421%
11/12/2025	Teachers Retirement System of The State of Kentucky	9,149	$0.89M	0.0%	-14.5%	0.030%
11/12/2025	Victory Capital Management Inc.	972,162	$90.24M	0.1%	+9.6%	3.136%
11/12/2025	Segall Bryant & Hamill LLC	58,611	$5.72M	0.1%	N/A	0.189%
11/12/2025	Royce & Associates LP	144,708	$14.13M	0.1%	-45.4%	0.467%
11/12/2025	American Century Companies Inc.	1,345,761	$131.40M	0.1%	-18.9%	4.341%
11/12/2025	Quantbot Technologies LP	16,156	$1.58M	0.0%	-54.2%	0.052%
11/12/2025	Caitlin John LLC	324	$32K	0.0%	N/A	0.001%
11/12/2025	Andra AP fonden	19,990	$1.95M	0.0%	+11.1%	0.064%
11/12/2025	Close Asset Management Ltd	280	$27K	0.0%	N/A	0.001%
11/12/2025	Xponance Inc.	2,608	$0.26M	0.0%	N/A	0.008%
11/12/2025	Mitsubishi UFJ Asset Management Co. Ltd.	54,221	$5.29M	0.0%	-0.6%	0.175%
11/12/2025	Primecap Management Co. CA	833,676	$81.40M	0.1%	-2.2%	2.689%
11/12/2025	Intech Investment Management LLC	17,671	$1.73M	0.0%	+3.2%	0.057%
11/12/2025	Fox Run Management L.L.C.	9,618	$0.94M	0.1%	-65.1%	0.031%
11/10/2025	EverSource Wealth Advisors LLC	585	$57K	0.0%	+29.7%	0.002%
11/10/2025	Ameritas Investment Partners Inc.	2,694	$0.26M	0.0%	-18.4%	0.009%
11/10/2025	Citigroup Inc.	324,354	$31.67M	0.0%	-10.5%	1.032%
11/7/2025	NJ State Employees Deferred Compensation Plan	2,358	$0.23M	0.0%	N/A	0.008%
11/7/2025	GSA Capital Partners LLP	8,566	$0.84M	0.1%	-15.7%	0.027%
11/7/2025	Merit Financial Group LLC	6,094	$0.60M	0.0%	N/A	0.019%
11/7/2025	Skandinaviska Enskilda Banken AB publ	2,503	$0.25M	0.0%	-5.1%	0.008%
11/7/2025	denkapparat Operations GmbH	2,168	$0.21M	0.1%	N/A	0.007%
11/7/2025	Vanguard Group Inc.	4,185,701	$408.69M	0.0%	-3.2%	13.322%
11/7/2025	Fifth Third Bancorp	363	$35K	0.0%	-25.8%	0.001%
11/7/2025	Shell Asset Management Co.	1,275	$0.12M	0.0%	-51.9%	0.004%
11/6/2025	Public Sector Pension Investment Board	122,564	$11.97M	0.0%	+11.9%	0.390%
11/6/2025	Illinois Municipal Retirement Fund	16,102	$1.57M	0.0%	+11.2%	0.051%
11/6/2025	LSV Asset Management	314,900	$30.75M	0.1%	N/A	1.002%
11/6/2025	Rhumbline Advisers	96,897	$9.46M	0.0%	+2.3%	0.308%
11/6/2025	Stratos Wealth Partners LTD.	2,594	$0.25M	0.0%	N/A	0.008%
11/6/2025	Essex Investment Management Co. LLC	3,350	$0.33M	0.1%	-10.1%	0.011%
11/6/2025	ProShare Advisors LLC	9,421	$0.92M	0.0%	-34.4%	0.030%

Data available starting January 2016

Axcelis Technologies, Inc. designs, manufactures, and services ion implantation and other processing equipment used in the fabrication of semiconductor chips in the United States, Europe, and Asia Pacific. The company offers high energy, high current, and medium current implanters for various application requirements. It also provides aftermarket lifecycle products and services, including used tools, spare parts, equipment upgrades, maintenance services, and customer training. It sells its equipment and services to semiconductor chip manufacturers through its direct sales force. The company was founded in 1978 and is headquartered in Beverly, Massachusetts.

Today's Range

Now: $89.10

$85.76

$89.74

50 Day Range

MA: $84.00

$74.12

$97.64

52 Week Range

Now: $89.10

$40.40

$102.93

Volume

472,134 shs

Average Volume

508,937 shs

Market Capitalization

$2.76 billion

P/E Ratio

21.06

Dividend Yield

N/A

Beta

1.73

Who are the company insiders with the largest holdings of Axcelis Technologies?: Axcelis Technologies' top insider shareholders include:
John T Kurtzweil (Director)
Douglas A Lawson (EVP)
Jorge Titinger (Director)
Learn More about top insider investors at Axcelis Technologies.
Who are the major institutional investors of Axcelis Technologies?: Axcelis Technologies' top institutional investors include:
Vanguard Group Inc. — 13.32%
Reinhart Partners LLC. — 5.13%
American Century Companies Inc. — 4.34%
Victory Capital Management Inc. — 3.14%
Primecap Management Co. CA — 2.69%
Dimensional Fund Advisors LP — 2.48%
Learn More about top institutional investors of Axcelis Technologies stock.
Which institutional investors are selling Axcelis Technologies stock?: In the previous quarter, ACLS stock was sold by these institutional investors:
Boston Trust Walden Corp
American Century Companies Inc.
Bank of America Corp DE
Voloridge Investment Management LLC
Vanguard Group Inc.
Royce & Associates LP
Pacer Advisors Inc.
Harbor Capital Advisors Inc.
Which institutional investors are buying Axcelis Technologies stock?: During the previous quarter, ACLS stock was bought by institutional investors including:
LSV Asset Management
Invesco Ltd.
Millennium Management LLC
Arrowstreet Capital Limited Partnership
Allspring Global Investments Holdings LLC
Reinhart Partners LLC.
BNP Paribas Financial Markets
Victory Capital Management Inc.