AI Holders Summary · Q2 2026

426 institutions reported MMSI in Q2 2026. BlackRock, Inc. leads at 25.0% 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

$656M9.5M0.01%Q2 2026 02

Vanguard Portfolio Management

CIK 0002100121· Index

$241M3.5M0.01%Q2 2026 03

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$180M2.6M0.00%Q2 2026 04

STATE STREET CORP

CIK 0000093751

$172M2.5M0.01%Q2 2026 05

Conestoga Capital Advisors, LLC

CIK 0001163744

$137M2.0M2.99%Q2 2026 06

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$113M1.6M0.01%Q2 2026 07

FULLER & THALER ASSET MANAGEMENT, INC.

CIK 0001082327

$112M1.6M0.30%Q2 2026 08

CONGRESS ASSET MANAGEMENT CO

CIK 0000897378

$109M1.3M0.70%Q3 2026 09

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$101M1.5M0.02%Q2 2026 10

UBS Group AG

CIK 0001610520

$94M1.4M0.01%Q2 2026 11

Delaware Management Holdings, Inc.

CIK 0000921739

$89M1.3M0.13%Q2 2026 12

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK 0001644956

$79M1.1M0.24%Q2 2026 13

Greenhouse Funds LLLP

CIK 0001626220

$74M1.1M3.80%Q2 2026 14

CITIGROUP INC

CIK 0000831001

$71M1.0M0.02%Q2 2026 15

FMR LLC

CIK 0000315066

$70M1.0M0.00%Q2 2026 16

WESTWOOD HOLDINGS GROUP INC

CIK 0001165002

$70M1.0M0.53%Q2 2026 17

MORGAN STANLEY

CIK 0000895421

$70M1.0M0.00%Q2 2026 18

Neuberger Berman Group LLC

CIK 0001465109

$69M1.0M0.05%Q2 2026 19

CITADEL ADVISORS LLC

CIK 0001423053

$64M921K0.01%Q2 2026 20

ROYAL BANK OF CANADA

CIK 0001000275

$57M827K0.01%Q2 2026

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