AI Holders Summary · Q1 2026

86 institutions reported MIST in Q1 2026. RTW INVESTMENTS, LP leads at 19.6% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(1 on this page)

#HolderValueShares% port.Quarter

RTW INVESTMENTS, LP

CIK 0001493215

$8M6.3M0.07%Q1 2026 02

Propel Bio Management, LLC

CIK 0001969764

$5M4.1M3.20%Q1 2026 03

Simplify Asset Management Inc.

CIK 0001846368

$4M3.3M0.06%Q2 2026 04

MARSHALL WACE, LLP

CIK 0001318757

$3M1.7M0.00%Q4 2025 05

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$3M2.3M0.00%Q1 2026 06

GOLDMAN SACHS GROUP INC

CIK 0000886982

$2M2.0M0.00%Q1 2026 07

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$2M1.5M0.00%Q1 2026 08

Point72 Asset Management, L.P.

CIK 0001603466

$1M1.1M0.00%Q1 2026 09

CITADEL ADVISORS LLC

CIK 0001423053

$1M637K0.00%Q4 2025 10

TWO SIGMA ADVISERS, LP

CIK 0001478735

$1M620K0.00%Q4 2025 11

BALYASNY ASSET MANAGEMENT L.P.

CIK 0001218710

$1M851K0.00%Q1 2026 12

Lion Point Capital, LP

CIK 0001643354

$976K820K5.83%Q1 2026 13

TORONTO DOMINION BANK

CIK 0000947263

$893K750K0.00%Q1 2026 14

MORGAN STANLEY

CIK 0000895421

$862K724K0.00%Q1 2026 15

Boxer Capital Management, LLC

CIK 0002018299

$793K667K0.10%Q1 2026 16

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$749K629K0.00%Q1 2026 17

UBS Group AG

CIK 0001610520

$589K495K0.00%Q1 2026 18

AMH Equity Ltd

CIK 0001600535

$463K232K0.58%Q3 2025 19

Squarepoint Ops LLC

CIK 0001642575

$401K337K0.00%Q1 2026 20

Seven Fleet Capital Management LP

CIK 0002092021

$397K333K0.12%Q1 2026

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