Axcelis Ownership | Who Owns Axcelis?

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Axcelis Ownership Summary

Axcelis is owned by 98.33% institutional investors, 1.64% insiders, and 0.03% retail investors. Blackrock is the largest institutional shareholder, holding 17.79% of ACLS shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.11% of its assets in Axcelis shares.

ACLS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Axcelis	98.33%	1.64%	0.03%
Sector	Technology Stocks	126.02%	12.46%	-38.47%
Idea	Semiconductor Stocks List	62.65%	7.35%	30.01%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	5.81M	17.79%	$825.67M
Blackrock funding, inc. /de	5.02M	15.67%	$349.98M
Vanguard group	4.40M	13.51%	$307.16M
American century companies	1.66M	5.18%	$115.65M
State street	1.30M	4.00%	$90.91M
Reinhart partners	1.04M	3.18%	$72.39M
Bnp paribas asset management	921.13K	2.87%	$64.19M
Geode capital management	897.75K	2.76%	$62.74M
Primecap management co/ca/	852.30K	2.66%	$59.40M
Boston trust walden	820.12K	2.52%	$57.30M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Reinhart partners	1.04M	2.79%	$72.39M
Soviero asset management, lp	48.00K	2.02%	$3.35M
Penbrook management	19.57K	0.93%	$1.37M
Jackson square partners	35.05K	0.90%	$2.44M
Chase investment counsel	24.00K	0.53%	$1.67M
Firsthand capital management	4.00K	0.48%	$198.68K
Eagle bay advisors	7.49K	0.43%	$521.63K
Boston trust walden	820.12K	0.40%	$57.30M
Harbor capital advisors	135.58K	0.40%	$9.45M
Wakefield asset management lllp	18.07K	0.35%	$1.26M

Top Buyers

Holder	Shares	% Assets	Change
Pacer advisors	782.15K	0.12%	781.15K
American century companies	1.66M	0.06%	518.97K
Norges bank	515.96K	0.00%	515.96K
Reinhart partners	1.04M	2.79%	348.50K
Boston trust walden	820.12K	0.40%	313.69K

Top Sellers

Holder	Shares	% Assets	Change
Amundi	5.35K	0.00%	-545.69K
Ameriprise financial	101.97K	0.00%	-505.85K
Blackrock	5.81M	0.02%	-332.11K
Blackrock funding, inc. /de	5.02M	0.01%	-316.47K
Rafferty asset management	-	-	-259.58K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	515.96K	0.00%	515.96K	$36.05M
Balyasny asset management	90.75K	0.01%	90.75K	$6.32M
Clark capital management group	84.59K	0.04%	84.59K	$5.90M
Susquehanna portfolio strategies	67.87K	0.10%	67.87K	$4.73M
Blackbarn capital partners lp	56.00K	0.21%	56.00K	$3.91M

Sold Out

Holder	Change
Sjs investment consulting	-1.00
Dinuzzo private wealth	-2.00
Kelly financial services	-3.00
Mendota financial group	-3.00
Financial gravity asset management	-5.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	339	7.96%	31,517,002	1.71%	98	1.07%	176	0.57%	102	22.89%
Mar 31, 2025	2	-99.42%	22,694	-99.93%	-	0.00%	2	-98.91%	-	-100.00%
Dec 31, 2024	332	-12.86%	30,738,912	3.13%	94	1.13%	174	-4.92%	94	-25.98%
Sep 30, 2024	380	-5.47%	29,801,666	-2.70%	91	1.04%	182	-11.22%	127	0.79%
Jun 30, 2024	397	-0.50%	30,601,925	2.97%	93	1.13%	201	17.54%	126	-24.10%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	1.92M	6.11%	288.00
Vanguard Total Stock Mkt Idx Inv	1.03M	3.27%	-21.90K
Vanguard US Total Market Shares ETF	1.03M	3.20%	836.00
American Century U.S. Small Cap Value	1.02M	3.17%	170.00K
American Century Small Cap Value Inv	1.02M	3.17%	170.00K
Vanguard Small Cap Index	779.32K	2.48%	-5.31K
PRIMECAP Odyssey Aggressive Growth	791.68K	2.46%	13.31K
Vanguard Information Technology ETF	767.71K	2.44%	7.78K
iShares Russell 2000 ETF	760.88K	2.42%	-14.49K
Pacer US Small Cap Cash Cows 100 ETF	674.99K	2.10%	-4.90K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 20, 2025	KURTZWEIL JOHN T	-	Sell	$104.17K
Aug 06, 2024	Titinger Jorge	-	Sell	$669.34K
May 20, 2024	KURTZWEIL JOHN T	-	Sell	$137.30K
Mar 11, 2024	Low Russell	PRESIDENT AND CEO	Buy	$49.45K
Feb 29, 2024	COOGAN JAMES GORDON	EVP AND CFO	Buy	$11.22K

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	-	1
2025 Q1	-	-
2024 Q4	-	-
2024 Q3	-	1
2024 Q2	-	1

ACLS Ownership FAQ

Who owns the most shares of Axcelis?

Axcelis’s largest shareholders are Blackrock (5.81M shares, 17.79%), Blackrock funding, inc. /de (5.02M shares, 15.67%), and Vanguard group (4.4M shares, 13.51%). Together, they hold 46.97% of Axcelis’s total shares outstanding.

Does Blackrock own Axcelis?

Yes, BlackRock owns 17.79% of Axcelis, totaling 5.81M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 825.67M$. In the last quarter, BlackRock decreased its holdings by -332K shares, a -5.41% change.

Who is Axcelis’s biggest shareholder by percentage of total assets invested?

Reinhart partners is Axcelis’s biggest shareholder by percentage of total assets invested, with 2.79% of its assets in 1.04M Axcelis shares, valued at 72.39M$.

Who is the top mutual fund holder of Axcelis shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of Axcelis shares, with 6.11% of its total shares outstanding invested in 1.92M Axcelis shares.

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