13F Insight
DOSSIER · 13F Holders · Q1 2026

ALPHA & OMEGA SEMICONDUCTOR

196 institutions still hold ALPHA & OMEGA SEMICONDUCTOR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G6331P104·196 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$375M
visible holders
Holders
196
filers reporting
Concentration
23.10%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

196 institutions reported ALPHA & OMEGA SEMICONDUCTOR in Q1 2026. BlackRock, Inc. leads at 23.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$87M3.9M0.00%Q1 202602
MANUFACTURERS LIFE INSURANCE COMPANY, THE
CIK 0000928047
$35M1.6M0.03%Q1 202603
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$35M1.6M0.01%Q1 202604
STATE STREET CORP
CIK 0000093751
$31M1.4M0.00%Q1 202605
Vanguard Portfolio Management
CIK 0002100121· Index
$26M1.2M0.00%Q1 202606
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$23M1.1M0.00%Q1 202607
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$15M695K0.00%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$14M629K0.00%Q1 202609
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$12M553K0.01%Q1 202610
FMR LLC
CIK 0000315066
$12M545K0.00%Q1 202611
WEBER CAPITAL MANAGEMENT LLC /ADV
CIK 0001099905
$12M542K12.00%Q1 202612
ROYCE & ASSOCIATES LP
CIK 0000906304
$11M518K0.11%Q1 202613
CONGRESS ASSET MANAGEMENT CO
CIK 0000897378
$10M203K0.06%Q2 202614
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$9M420K0.00%Q1 202615
Invesco Ltd.
CIK 0000914208
$8M376K0.00%Q1 202616
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 0000884414
$8M354K0.03%Q1 202617
Connor, Clark & Lunn Investment Management Ltd.
CIK 0001596800
$7M337K0.02%Q1 202618
JPMORGAN CHASE & CO
CIK 0000019617
$7M344K0.00%Q1 202619
GOLDMAN SACHS GROUP INC
CIK 0000886982
$6M268K0.00%Q1 202620
NORTHERN TRUST CORP
CIK 0000073124· Index
$5M247K0.00%Q1 2026
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