AI Holders Summary · Q2 2026

62 institutions reported STEX in Q2 2026. Legacy Wealth Managment, LLC/ID leads at 29.4% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(6 on this page)

#HolderValueShares% port.Quarter

Legacy Wealth Managment, LLC/ID

CIK 0002045082

$6M6.5M2.29%Q2 2026 02

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$3M3.8M0.00%Q2 2026 03

Yorkville Advisors Global, LP

CIK 0001838613

$3M3.8M3.70%Q2 2026 04

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$1M1.3M0.00%Q2 2026 05

BlackRock, Inc.

CIK 0002012383

$793K933K0.00%Q2 2026 06

VANGUARD FIDUCIARY TRUST CO

CIK 0000933478· Index

$537K632K0.00%Q2 2026 07

JANE STREET GROUP, LLC

CIK 0001595888· Market maker

$521K461K0.00%Q1 2026 08

STATE STREET CORP

CIK 0000093751

$514K604K0.00%Q2 2026 09

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$403K474K0.00%Q2 2026 10

Cambridge Investment Research Advisors, Inc.

CIK 0001419186

$362K320K0.00%Q1 2026 11

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$348K410K0.00%Q2 2026 12

Rossby Financial, LCC

CIK 0002056510

$327K385K0.06%Q2 2026 13

UBS Group AG

CIK 0001610520

$288K339K0.00%Q2 2026 14

WOLVERINE TRADING, LLC

CIK 0000927337

$276K51K0.00%Q3 2025 15

CITADEL ADVISORS LLC

CIK 0001423053

$274K323K0.00%Q2 2026 16

NATIONAL BANK OF CANADA /FI/

CIK 0000926171

$266K320K0.00%Q2 2026 17

UNITED CAPITAL FINANCIAL ADVISORS, LLC

CIK 0001463217

$261K307K0.00%Q2 2026 18

Caption Management, LLC

CIK 0001706766

$255K300K0.00%Q2 2026 19

Shay Capital LLC

CIK 0001723643

$243K285K0.02%Q2 2026 20

NORTHERN TRUST CORP

CIK 0000073124· Index

$200K235K0.00%Q2 2026

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