Axcelis Technologies, Inc. ACLS

Set alert

97.38 USD +2.23 (+2.34%)

At closeNov 3, 2026, 4:01 PM EST

97.38 0.00 0.00%

After hours · Nov 3, 4:01 PM ET

96.83 Day range 101.08

73.60 52-week range 193.78

Held by insiders 0.68%

Held by institutions 103.50%

Float held by institutions 104.21%

Institutions 550

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	16.29%	5,029,462	489.77M	Jun 29, 2026
FMR, LLC	13.36%	4,125,902	401.78M	Jun 29, 2026
Vanguard Portfolio Management LLC	8.03%	2,478,878	241.39M	Jun 29, 2026
Vanguard Capital Management LLC	4.49%	1,386,518	135.02M	Jun 29, 2026
State Street Corporation	3.99%	1,231,109	119.89M	Jun 29, 2026
Victory Capital Management Inc.	3.67%	1,134,007	110.43M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
iShares Trust-iShares Core S&P Small-Cap ETF	5.95%	1,838,932	179.08M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	3.16%	976,851	95.13M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.64%	815,569	79.42M	Sep 29, 2026
VANGUARD WORLD FUND-Vanguard Information Technology Index Fund	2.42%	746,527	72.70M	Aug 30, 2026
VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund	2.28%	704,939	68.65M	Jun 29, 2026
PRIMECAP Odyssey Funds-PRIMECAP Odyssey Aggressive Growth Fund	1.86%	575,146	56.01M	Jul 30, 2026

ACLS insiders
Insider	Relation	Latest transaction	Date	Shares held
BLUMENSTOCK GERALD M	Officer	Sale	May 20, 2026	20,493
CHIU TZU YIN	Director	Stock Award(Grant)	May 14, 2026	11,843
COOGAN JAMES GORDON	Chief Financial Officer	Stock Award(Grant)	May 14, 2025	39,657
EVANS EILEEN	General Counsel	Sale	May 21, 2026	31,295
KURTZWEIL JOHN THOMAS	Director	Sale	May 18, 2026	32,990
LOW RUSSELL J	Chief Executive Officer	Stock Award(Grant)	May 14, 2026	155,611

Held by funds