13F Insight
DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
OKLO

OKLO INC

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

CUSIP 02156v109·712 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 4.9%
vs prior quarter
13F value held
$4.6B
67.0% inst. owned
of float
Holders
712
+126 QoQ
filers reporting
Activity
+33 / −38
+906 added · −858 reduced
this quarter
Concentration
16.97%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

712 institutions reported OKLO in Q1 2026. BlackRock, Inc. leads at 17.0% of the visible book. +126 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
$789M15.9M0.01%Q1 202602
CITADEL ADVISORS LLC
CIK 0001423053
$507M7.1M0.08%Q4 202503
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$462M9.3M0.06%Q1 202604
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$445M9.0M0.05%Q1 202605
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$439M8.9M0.60%Q1 202606
Vanguard Portfolio Management
CIK 0002100121· Index
$309M6.2M0.02%Q1 202607
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$289M5.8M0.01%Q1 202608
WOLVERINE TRADING, LLC
CIK 0000927337
$280M2.4M0.20%Q3 202509
Defiance ETFs, LLC
CIK 0001732541
$181M3.6M2.59%Q1 202610
STATE STREET CORP
CIK 0000093751
$165M3.3M0.01%Q1 202611
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$151M3.1M0.01%Q1 202612
MORGAN STANLEY
CIK 0000895421
$133M2.7M0.01%Q1 202613
D. E. Shaw & Co., Inc.
CIK 0001009207
$111M1.5M0.06%Q4 202514
UBS Group AG
CIK 0001610520
$73M1.5M0.01%Q1 202615
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$59M1.2M0.01%Q1 202616
NORTHERN TRUST CORP
CIK 0000073124· Index
$57M1.2M0.01%Q1 202617
CANTOR FITZGERALD, L. P.
CIK 0001024896
$56M1.1M0.82%Q1 202618
GOLDMAN SACHS GROUP INC
CIK 0000886982
$52M1.0M0.01%Q1 202619
BANK OF MONTREAL /CAN/
CIK 0000927971
$47M945K0.02%Q1 202620
Select Equity Group, L.P.
CIK 0001592643
$46M641K0.20%Q4 2025
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