13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Semiconductors & Related DevicesDefensive growthQuality
ALAB

ASTERA LABS INC

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

CUSIP 04626A103·Semiconductors & Related Devices·731 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 3.4%
vs prior quarter
13F value held
$10.6B
78.0% inst. owned
of float
Holders
731
-35 QoQ
filers reporting
Activity
+32 / −48
+902 added · −794 reduced
this quarter
Concentration
26.38%
FMR LLC #1
top holder share
AI Holders Summary · Q1 2026

731 institutions reported ALAB in Q1 2026. FMR LLC leads at 26.4% of the visible book. -35 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
FMR LLC
CIK 0000315066
$2.8B25.5M0.15%Q1 202602
BlackRock, Inc.
CIK 0002012383
$1.3B11.4M0.02%Q1 202603
Vanguard Portfolio Management
CIK 0002100121· Index
$801M7.3M0.04%Q1 202604
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$745M6.8M0.08%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$695M6.3M0.02%Q1 202606
D. E. Shaw & Co., Inc.
CIK 0001009207
$455M2.7M0.25%Q4 202507
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$418M2.5M0.14%Q1 202608
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$409M3.7M0.05%Q1 202609
CITADEL ADVISORS LLC
CIK 0001423053
$382M2.3M0.06%Q4 202510
Atreides Management, LP
CIK 0001777813
$369M3.4M7.37%Q1 202611
STATE STREET CORP
CIK 0000093751
$365M3.3M0.01%Q1 202612
FRED ALGER MANAGEMENT, LLC
CIK 0000003520
$282M2.6M1.24%Q1 202613
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$274M2.5M0.02%Q1 202614
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$255M1.8M0.12%Q1 202615
Amundi
CIK 0001330387
$206M1.9M0.06%Q1 202616
BANK OF AMERICA CORP /DE/
CIK 0000070858
$196M1.8M0.01%Q1 202617
MORGAN STANLEY
CIK 0000895421
$190M1.7M0.01%Q1 202618
WOLVERINE TRADING, LLC
CIK 0000927337
$173M871K0.12%Q3 202519
BARCLAYS PLC
CIK 0000312069
$170M1.6M0.04%Q1 202620
UBS Group AG
CIK 0001610520
$167M1.5M0.03%Q1 2026
Page 1 of 37
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