AI Holders Summary · Q2 2026

90 institutions reported STIM in Q2 2026. Madryn Asset Management, LP leads at 53.7% 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

Madryn Asset Management, LP

CIK 0001787423

$24M18.5M65.29%Q2 2026 02

UBS Group AG

CIK 0001610520

$3M2.3M0.00%Q2 2026 03

WEXFORD CAPITAL LP

CIK 0001048462

$3M2.0M0.33%Q2 2026 04

FourWorld Capital Management LLC

CIK 0001770525

$2M1.7M2.06%Q2 2026 05

Lane Generational LLC

CIK 0001901384

$2M1.6M1.86%Q2 2026 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$2M1.5M0.00%Q2 2026 07

MASTERS CAPITAL MANAGEMENT LLC

CIK 0001104186

$1M1.0M0.03%Q2 2026 08

Ikarian Capital, LLC

CIK 0001778253

$1M701K0.08%Q1 2026 09

AdvisorShares Investments LLC

CIK 0001425930

$966K743K0.12%Q2 2026 10

BlackRock, Inc.

CIK 0002012383

$776K597K0.00%Q2 2026 11

HighTower Advisors, LLC

CIK 0001462245

$733K564K0.00%Q2 2026 12

MARSHALL WACE, LLP

CIK 0001318757

$631K486K0.00%Q2 2026 13

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$596K458K0.00%Q2 2026 14

CITADEL ADVISORS LLC

CIK 0001423053

$565K435K0.00%Q2 2026 15

Dauntless Investment Group, LLC

CIK 0002044285

$480K369K0.38%Q2 2026 16

STATE STREET CORP

CIK 0000093751

$377K290K0.00%Q2 2026 17

Centiva Capital, LP

CIK 0001692507

$372K286K0.00%Q2 2026 18

VANGUARD FIDUCIARY TRUST CO

CIK 0000933478· Index

$344K265K0.00%Q2 2026 19

GOLDMAN SACHS GROUP INC

CIK 0000886982

$343K264K0.00%Q2 2026 20

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$343K264K0.00%Q2 2026

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