AI Holders Summary · Q2 2026

386 institutions reported OSIS in Q2 2026. BlackRock, Inc. leads at 18.7% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(4 on this page)

#HolderValueShares% port.Quarter

BlackRock, Inc.

CIK 0002012383

$558M2.6M0.01%Q2 2026 02

FMR LLC

CIK 0000315066

$380M1.7M0.02%Q2 2026 03

Vanguard Portfolio Management

CIK 0002100121· Index

$278M1.3M0.01%Q2 2026 04

JANUS HENDERSON GROUP PLC

CIK 0001274173

$205M772K0.10%Q1 2026 05

Jupiter Topco LLC

CIK 0002146052

$198M906K0.08%Q2 2026 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$154M703K0.00%Q2 2026 07

STATE STREET CORP

CIK 0000093751

$147M674K0.00%Q2 2026 08

Capital International Investors

CIK 0001562230

$130M596K0.03%Q2 2026 09

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$101M464K0.01%Q2 2026 10

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

CIK 0000861177

$99M453K0.02%Q2 2026 11

Channing Capital Management, LLC

CIK 0001302404

$95M433K2.18%Q2 2026 12

Hood River Capital Management LLC

CIK 0001578177

$91M414K0.66%Q2 2026 13

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$91M414K0.02%Q2 2026 14

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK 0001644956

$83M379K0.25%Q2 2026 15

Neuberger Berman Group LLC

CIK 0001465109

$71M325K0.05%Q2 2026 16

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$69M260K0.01%Q1 2026 17

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$65M298K0.02%Q2 2026 18

Invesco Ltd.

CIK 0000914208

$58M263K0.00%Q2 2026 19

PRIMECAP MANAGEMENT CO/CA/

CIK 0000763212

$56M258K0.03%Q2 2026 20

AMERICAN CENTURY COMPANIES INC

CIK 0000748054

$49M223K0.02%Q2 2026

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