13F Insight
DOSSIER · 13F Holders · Q2 2026

ALPHA & OMEGA SEMICONDUCTOR

221 institutions still hold ALPHA & OMEGA SEMICONDUCTOR as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G6331P104·221 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$841M
visible holders
Holders
221
filers reporting
Concentration
23.94%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

221 institutions reported ALPHA & OMEGA SEMICONDUCTOR in Q2 2026. BlackRock, Inc. leads at 23.9% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$201M4.3M0.00%Q2 202602
STATE STREET CORP
CIK 0000093751
$111M2.3M0.00%Q2 202603
MANUFACTURERS LIFE INSURANCE COMPANY, THE
CIK 0000928047
$65M1.4M0.05%Q2 202604
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$63M1.3M0.01%Q2 202605
Vanguard Portfolio Management
CIK 0002100121· Index
$53M1.1M0.00%Q2 202606
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$51M1.1M0.00%Q2 202607
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$45M952K0.03%Q2 202608
FMR LLC
CIK 0000315066
$37M792K0.00%Q2 202609
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$31M659K0.00%Q2 202610
Connor, Clark & Lunn Investment Management Ltd.
CIK 0001596800
$30M637K0.06%Q2 202611
CITADEL ADVISORS LLC
CIK 0001423053
$23M476K0.00%Q2 202612
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$20M413K0.00%Q2 202613
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$19M403K0.00%Q2 202614
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$15M318K0.01%Q2 202615
WEBER CAPITAL MANAGEMENT LLC /ADV
CIK 0001099905
$15M537K13.46%Q3 202616
ROYCE & ASSOCIATES LP
CIK 0000906304
$15M309K0.12%Q2 202617
GOLDMAN SACHS GROUP INC
CIK 0000886982
$13M279K0.00%Q2 202618
NORTHERN TRUST CORP
CIK 0000073124· Index
$12M261K0.00%Q2 202619
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$12M254K0.00%Q2 202620
MORGAN STANLEY
CIK 0000895421
$10M217K0.00%Q2 2026
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