AI Holders Summary · Q1 2026

120 institutions reported TSSI in Q1 2026. BlackRock, Inc. leads at 18.5% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(7 on this page)

#HolderValueShares% port.Quarter

BlackRock, Inc.

CIK 0002012383

$23M1.8M0.00%Q1 2026 02

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$13M968K0.00%Q1 2026 03

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$11M823K0.00%Q1 2026 04

JANE STREET GROUP, LLC

CIK 0001595888· Market maker

$10M759K0.00%Q1 2026 05

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$7M576K0.00%Q1 2026 06

WOLVERINE TRADING, LLC

CIK 0000927337

$7M403K0.01%Q3 2025 07

UBS Group AG

CIK 0001610520

$7M522K0.00%Q1 2026 08

Value Aligned Research Advisors, LLC

CIK 0001963565

$6M461K0.03%Q1 2026 09

STATE STREET CORP

CIK 0000093751

$6M425K0.00%Q1 2026 10

SILVERCREST ASSET MANAGEMENT GROUP LLC

CIK 0001232395

$5M417K0.04%Q1 2026 11

CITADEL ADVISORS LLC

CIK 0001423053

$5M686K0.00%Q4 2025 12

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$5M370K0.00%Q1 2026 13

LPL Financial LLC

CIK 0001403438

$4M343K0.00%Q1 2026 14

Rockefeller Capital Management L.P.

CIK 0001739439

$3M217K0.01%Q1 2026 15

CenterBook Partners LP

CIK 0001872738

$2M177K0.12%Q1 2026 16

WELLS FARGO & COMPANY/MN

CIK 0000072971

$2M173K0.00%Q1 2026 17

NORTHERN TRUST CORP

CIK 0000073124· Index

$2M165K0.00%Q1 2026 18

VANGUARD FIDUCIARY TRUST CO

CIK 0000933478· Index

$2M160K0.00%Q1 2026 19

Arosa Capital Management LP

CIK 0001596053

$2M150K0.30%Q1 2026 20

Vanguard Portfolio Management

CIK 0002100121· Index

$2M131K0.00%Q1 2026

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