13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Special Industry Machinery, NECCheap mega-capRe-rated
ACLS

AXCELIS TECHNOLOGIES INC

392 institutions still hold AXCELIS TECHNOLOGIES INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 054540208·Special Industry Machinery, NEC·392 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 4.6%
vs prior quarter
13F value held
$2.3B
76.0% inst. owned
of float
Holders
392
+107 QoQ
filers reporting
Activity
+25 / −103
+1,025 added · −945 reduced
this quarter
Concentration
20.38%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

392 institutions reported ACLS in Q1 2026. BlackRock, Inc. leads at 20.4% of the visible book. +107 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$460M4.9M0.01%Q1 202602
Vanguard Portfolio Management
CIK 0002100121· Index
$232M2.5M0.01%Q1 202603
FMR LLC
CIK 0000315066
$226M2.4M0.01%Q1 202604
REINHART PARTNERS, LLC.
CIK 0001080298
$154M1.7M4.44%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$129M1.4M0.00%Q1 202606
BALYASNY ASSET MANAGEMENT L.P.
CIK 0001218710
$127M1.4M0.16%Q1 202607
VICTORY CAPITAL MANAGEMENT INC
CIK 0001040188
$119M1.3M0.08%Q1 202608
STATE STREET CORP
CIK 0000093751
$111M1.2M0.00%Q1 202609
BNP Paribas Asset Management Holding S.A.
CIK 0001520354
$94M1.0M0.11%Q1 202610
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$89M952K0.05%Q1 202611
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$79M844K0.02%Q1 202612
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$76M811K0.00%Q1 202613
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
$61M659K0.05%Q1 202614
MORGAN STANLEY
CIK 0000895421
$54M582K0.00%Q1 202615
GOLDMAN SACHS GROUP INC
CIK 0000886982
$46M498K0.01%Q1 202616
MANUFACTURERS LIFE INSURANCE COMPANY, THE
CIK 0000928047
$46M492K0.04%Q1 202617
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$41M446K0.01%Q1 202618
NORTHERN TRUST CORP
CIK 0000073124· Index
$39M417K0.01%Q1 202619
D. E. Shaw & Co., Inc.
CIK 0001009207
$38M470K0.02%Q4 202520
Boston Trust Walden Corp
CIK 0001534866
$35M379K0.29%Q1 2026
Page 1 of 20
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