Axcelis Technologies (ACLS) Institutional Ownership

$158.00 -6.27 (-3.81%)

Closing price 03:59 PM Eastern

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$158.06 +0.06 (+0.04%)

As of 04:10 PM Eastern

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Current Institutional Ownership Percentage: 89.98%
Number of Institutional Buyers (last 12 months): 213
Total Institutional Inflows (last 12 months): $630.52M

Number of Institutional Sellers (last 12 months): 153
Total Institutional Outflows (last 12 months): $463.85M

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ACLS Institutional Buying and Selling by Quarter

Axcelis Technologies Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
5/22/2026	Segall Bryant & Hamill LLC	200,371	$18.65M	0.2%	+96.1%	0.652%
5/19/2026	Western Wealth Management LLC	6,936	$646K	0.0%	N/A	0.023%
5/19/2026	Bank of America Corp DE	110,999	$10.33M	0.0%	-6.1%	0.361%
5/19/2026	Edgestream Partners L.P.	3,362	$313K	0.0%	N/A	0.011%
5/19/2026	Janus Henderson Group PLC	14,628	$1.36M	0.0%	-65.0%	0.048%
5/18/2026	Amundi	40,627	$3.78M	0.0%	+9.0%	0.132%
5/18/2026	California State Teachers Retirement System	36,420	$3.39M	0.0%	+21.3%	0.119%
5/18/2026	Royal Bank of Canada	9,793	$912K	0.0%	+154.4%	0.032%
5/18/2026	Empowered Funds LLC	39,087	$3.64M	0.0%	+0.5%	0.127%
5/16/2026	The Manufacturers Life Insurance Company	491,745	$45.77M	0.0%	+3,402.5%	1.600%
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5/16/2026	Quantinno Capital Management LP	12,336	$1.15M	0.0%	+10.0%	0.040%
5/15/2026	Entropy Technologies LP	10,790	$1.00M	0.0%	N/A	0.035%
5/14/2026	Morningstar Investment Management LLC	9,179	$854K	0.1%	-8.5%	0.030%
5/14/2026	Paradigm Capital Management Inc. NY	24,000	$2.23M	0.1%	-57.1%	0.078%
5/14/2026	Sei Investments Co.	45,035	$4.19M	0.0%	+61.0%	0.147%
5/14/2026	Lido Advisors LLC	4,259	$396K	0.0%	+17.9%	0.014%
5/14/2026	Globeflex Capital L P	44,455	$4.14M	0.6%	-20.6%	0.145%
5/14/2026	State of Wyoming	393	$37K	0.0%	-67.0%	0.001%
5/13/2026	Cetera Investment Advisers	5,127	$477K	0.0%	-48.5%	0.017%
5/13/2026	First Trust Advisors LP	137,779	$12.82M	0.0%	+55.9%	0.448%
5/12/2026	ABN Amro Investment Solutions	24,650	$2.29M	0.0%	-0.6%	0.080%
5/8/2026	PNC Financial Services Group Inc.	2,168	$202K	0.0%	-5.0%	0.007%
5/7/2026	Dimensional Fund Advisors LP	844,097	$78.57M	0.0%	+0.4%	2.747%
5/7/2026	Parallel Advisors LLC	665	$62K	0.0%	+22.0%	0.002%
5/6/2026	Allspring Global Investments Holdings LLC	258,536	$24.69M	0.0%	-2.8%	0.841%
5/5/2026	D.A. Davidson & CO.	2,300	$214K	0.0%	-12.8%	0.007%
5/5/2026	Bank of New York Mellon Corp	199,672	$18.59M	0.0%	-1.9%	0.650%
5/5/2026	Illinois Municipal Retirement Fund	15,080	$1.40M	0.0%	-3.1%	0.049%
5/4/2026	Emerald Mutual Fund Advisers Trust	47,412	$4.41M	0.2%	N/A	0.154%
5/4/2026	Emerald Advisers LLC	96,238	$8.96M	0.3%	N/A	0.313%
5/4/2026	Empirical Financial Services LLC d.b.a. Empirical Wealth Management	7,654	$712K	0.0%	+36.5%	0.025%
5/4/2026	Principal Financial Group Inc.	210,202	$19.57M	0.0%	+5.1%	0.684%
5/1/2026	Commonwealth of Pennsylvania Public School Empls Retrmt SYS	6,592	$614K	0.0%	-1.2%	0.021%
5/1/2026	Fifth Third Bancorp	9,059	$843K	0.0%	+2,290.2%	0.029%
5/1/2026	ARGA Investment Management LP	41,408	$3.85M	0.1%	+123.4%	0.135%
4/30/2026	Hsbc Holdings PLC	11,443	$1.07M	0.0%	-6.6%	0.037%
4/30/2026	Peterson Wealth Services	7,889	$734K	0.2%	+6.6%	0.026%
4/30/2026	Isthmus Partners LLC	39,357	$3.66M	0.4%	-5.1%	0.128%
4/29/2026	KERR FINANCIAL PLANNING Corp	2,150	$200K	0.3%	-11.3%	0.007%
4/29/2026	Burney Co.	16,845	$1.57M	0.0%	-31.9%	0.055%
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4/28/2026	Praxis Investment Management Inc.	2,766	$257K	0.0%	-43.3%	0.009%
4/28/2026	QRG Capital Management Inc.	9,596	$893K	0.0%	+237.6%	0.031%
4/27/2026	New York State Teachers Retirement System	14,857	$1.38M	0.0%	-6.4%	0.048%
4/27/2026	Private Advisor Group LLC	2,978	$277K	0.0%	-92.3%	0.010%
4/25/2026	Strs Ohio	2,500	$233K	0.0%	-26.5%	0.008%
4/25/2026	Eagle Bay Advisors LLC	6,200	$577K	0.5%	+93.8%	0.020%
4/25/2026	Boston Trust Walden Corp	378,525	$35.23M	0.3%	-11.5%	1.232%
4/24/2026	James Investment Research Inc.	3,408	$317K	0.0%	-58.8%	0.011%
4/22/2026	Janney Montgomery Scott LLC	22,150	$2.06M	0.0%	-1.3%	0.072%
4/22/2026	Pictet Asset Management Holding SA	4,881	$454K	0.0%	+13.5%	0.016%
4/22/2026	Sterling Capital Management LLC	969	$90K	0.0%	-42.0%	0.003%
4/21/2026	Wealth Effects LLC	3,571	$332K	0.1%	-2.1%	0.012%
4/21/2026	Wesbanco Bank Inc.	12,800	$1.19M	0.0%	N/A	0.042%
4/21/2026	Penbrook Management LLC	12,095	$1.13M	0.9%	-23.9%	0.039%
4/21/2026	Louisiana State Employees Retirement System	13,600	$1.27M	0.0%	N/A	0.044%
4/18/2026	CENTRAL TRUST Co	1,237	$115K	0.0%	-8.4%	0.004%
4/16/2026	SG Americas Securities LLC	3,375	$314K	0.0%	-76.2%	0.011%
4/16/2026	Evolve Private Wealth LLC	7,706	$717K	0.0%	+9.6%	0.025%
3/20/2026	Hsbc Holdings PLC	12,254	$991K	0.0%	-41.0%	0.040%
3/17/2026	Rockefeller Capital Management L.P.	1,357	$109K	0.0%	+69.2%	0.004%
3/9/2026	Corient Private Wealth LLC	5,792	$466K	0.0%	+4.0%	0.019%
2/24/2026	Pacer Advisors Inc.	3,615	$290K	0.0%	-19.4%	0.012%
2/19/2026	Invesco Ltd.	478,897	$38.48M	0.0%	+23.8%	1.560%
2/18/2026	Ameriflex Group Inc.	1,180	$95K	0.0%	N/A	0.004%
2/18/2026	Mercer Global Advisors Inc. ADV	3,721	$299K	0.0%	+34.3%	0.012%
2/18/2026	Vident Advisory LLC	13,099	$1.05M	0.0%	-4.1%	0.043%
2/18/2026	State of Tennessee Department of Treasury	6,867	$605K	0.0%	-41.8%	0.022%
2/18/2026	NewEdge Advisors LLC	2,406	$193K	0.0%	+130.2%	0.008%
2/18/2026	Empowered Funds LLC	38,888	$3.12M	0.0%	+706.8%	0.127%
2/18/2026	XTX Topco Ltd	6,771	$544K	0.0%	N/A	0.022%
2/18/2026	Zacks Investment Management	88,080	$7.08M	0.1%	+335.8%	0.287%
2/18/2026	Voloridge Investment Management LLC	220,713	$17.73M	0.1%	+131.8%	0.719%
2/18/2026	Susquehanna Portfolio Strategies LLC	68,213	$5.48M	0.1%	-4.0%	0.222%
2/18/2026	Twinbeech Capital LP	18,000	$1.45M	0.1%	N/A	0.059%
2/18/2026	Old West Investment Management LLC	18,064	$1.45M	0.3%	+11.0%	0.059%
2/18/2026	Millennium Management LLC	130,090	$10.45M	0.0%	-50.3%	0.424%
2/18/2026	Janus Henderson Group PLC	41,776	$3.36M	0.0%	-82.3%	0.136%
2/18/2026	Gotham Asset Management LLC	12,210	$981K	0.0%	+10.8%	0.040%
2/18/2026	Evolve Private Wealth LLC	7,029	$565K	0.0%	N/A	0.023%
2/18/2026	Engineers Gate Manager LP	11,167	$897K	0.0%	+212.7%	0.036%
2/18/2026	Balyasny Asset Management L.P.	243,503	$19.56M	0.0%	+10,368.7%	0.793%
2/18/2026	Bridgeway Capital Management LLC	36,000	$2.89M	0.1%	+16.1%	0.117%
2/17/2026	Freestone Grove Partners LP	6,989	$561K	0.0%	N/A	0.023%
2/17/2026	Guggenheim Capital LLC	7,704	$619K	0.0%	-2.0%	0.025%
2/17/2026	Schonfeld Strategic Advisors LLC	21,182	$1.70M	0.0%	-43.7%	0.069%
2/17/2026	AQR Capital Management LLC	37,581	$3.02M	0.0%	+2.5%	0.122%
2/17/2026	Abel Hall LLC	2,629	$211K	0.0%	N/A	0.009%
2/17/2026	Cetera Investment Advisers	9,955	$800K	0.0%	+63.4%	0.032%
2/17/2026	Amundi	37,274	$3.00M	0.0%	+9.6%	0.121%
2/17/2026	Price T Rowe Associates Inc. MD	383,056	$30.78M	0.0%	-28.0%	1.248%
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2/17/2026	Soviero Asset Management LP	46,000	$3.70M	1.8%	+48.4%	0.150%
2/17/2026	Osaic Holdings Inc.	2,656	$213K	0.0%	-12.7%	0.009%
2/17/2026	Private Advisor Group LLC	38,482	$3.09M	0.0%	-16.2%	0.125%
2/17/2026	Russell Investments Group Ltd.	3,277	$263K	0.0%	-22.7%	0.011%
2/17/2026	Clark Capital Management Group Inc.	110,294	$8.86M	0.1%	+14.2%	0.359%
2/17/2026	State of Wisconsin Investment Board	50,506	$4.06M	0.0%	+0.6%	0.165%
2/17/2026	&PARTNERS	13,953	$1.12M	0.0%	-4.5%	0.045%
2/17/2026	Royal Bank of Canada	3,849	$310K	0.0%	-97.7%	0.013%
2/17/2026	Graham Capital Management L.P.	3,114	$250K	0.0%	-25.8%	0.010%
2/17/2026	Needham Investment Management LLC	20,000	$1.61M	0.1%	N/A	0.065%

ACLS Institutional Ownership - Frequently Asked Questions

During the previous two years, 412 institutional investors and hedge funds held shares of Axcelis Technologies. The most heavily invested institutionals were Vanguard Group Inc. ($331.20M), Victory Capital Management Inc. ($145.21M), American Century Companies Inc. ($131.40M), Reinhart Partners LLC. ($127.73M), State Street Corp ($95.30M), Dimensional Fund Advisors LP ($78.57M), and Geode Capital Management LLC ($73.74M).Learn more on Axcelis Technologies' institutional investors.

89.98% of Axcelis Technologies' stock is owned by institutional investors. Learn more on ACLS's institutional investor holdings.

Of the 355 institutional investors that purchased Axcelis Technologies' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Reinhart Partners LLC. ($1.27M), American Century Companies Inc. ($928.87K), Victory Capital Management Inc. ($922.28K), Boston Trust Walden Corp ($845.91K), Pacer Advisors Inc. ($781.15K), Norges Bank ($666.55K), and Boston Partners ($561.72K).

Institutional investors have bought a total of 7,577,133 shares in the last 24 months. This purchase volume represents approximately $630.52M in transactions.

Of the 153 institutional investors that sold Axcelis Technologies' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Amundi ($545.69K), Bank of America Corp DE ($516.30K), Boston Trust Walden Corp ($467.39K), American Century Companies Inc. ($313.70K), Janus Henderson Group PLC ($220.78K), Voloridge Investment Management LLC ($216.61K), and Vanguard Group Inc. ($201.42K).

Institutional investors have sold a total of 5,488,759 shares in the last 24 months. This volume of shares sold represents approximately $463.85M in transactions.

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This page (NASDAQ:ACLS) was last updated on 5/27/2026 by MarketBeat.com Staff.

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Axcelis Technologies (ACLS) Institutional Ownership

ACLS Institutional Buying and Selling by Quarter

Axcelis Technologies Major Shareholders & Ownership History

ACLS Institutional Ownership - Frequently Asked Questions

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Axcelis Technologies (ACLS) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Axcelis Technologies (NASDAQ:ACLS)

ACLS Institutional Buying and Selling by Quarter

Axcelis Technologies Major Shareholders & Ownership History

ACLS Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ACLS shares?

What percentage of Axcelis Technologies' stock is owned by institutional investors?

Which institutional investors have been buying Axcelis Technologies' stock?

How much institutional buying is happening at Axcelis Technologies?

Which of Axcelis Technologies' major shareholders have been selling company stock?

How much institutional selling is happening at Axcelis Technologies?

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