AI Holders Summary · Q2 2026

631 institutions reported SIRI in Q2 2026. BERKSHIRE HATHAWAY INC leads at 52.0% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(5 on this page)

#HolderValueShares% port.Quarter

BERKSHIRE HATHAWAY INC

CIK 0001067983

$3.7B124.8M1.23%Q2 2026 02

BlackRock, Inc.

CIK 0002012383

$520M17.6M0.01%Q2 2026 03

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$311M10.5M0.06%Q2 2026 04

Vanguard Portfolio Management

CIK 0002100121· Index

$268M9.1M0.01%Q2 2026 05

CHECK CAPITAL MANAGEMENT INC/CA

CIK 0001032814

$259M8.8M2.32%Q2 2026 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$248M8.4M0.01%Q2 2026 07

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$204M6.9M0.02%Q2 2026 08

Kontiki Capital Management (HK) Ltd.

CIK 0001713390

$180M6.1M11.78%Q2 2026 09

STATE STREET CORP

CIK 0000093751

$177M6.0M0.01%Q2 2026 10

CITADEL ADVISORS LLC

CIK 0001423053

$157M5.3M0.02%Q2 2026 11

Boston Partners

CIK 0001386060

$150M5.1M0.13%Q2 2026 12

GOLDMAN SACHS GROUP INC

CIK 0000886982

$142M4.8M0.01%Q2 2026 13

Gates Capital Management, Inc.

CIK 0001312908

$134M4.5M3.22%Q2 2026 14

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$115M3.9M0.01%Q2 2026 15

FPR PARTNERS LLC

CIK 0001546190

$99M4.4M17.13%Q1 2025 16

AQR CAPITAL MANAGEMENT LLC

CIK 0001167557

$98M3.4M0.03%Q2 2026 17

Tidal Investments LLC

CIK 0001600064

$89M3.0M0.15%Q2 2026 18

Bank of New York Mellon Corp

CIK 0001390777

$89M3.0M0.01%Q2 2026 19

J. Goldman & Co LP

CIK 0001412741

$88M3.0M2.28%Q2 2026 20

D. E. Shaw & Co., Inc.

CIK 0001009207

$80M4.0M0.04%Q4 2025

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