AI Holders Summary · Q2 2026

71 institutions reported QTTB in Q2 2026. ORBIMED ADVISORS LLC leads at 23.8% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(2 on this page)

#HolderValueShares% port.Quarter

ORBIMED ADVISORS LLC

CIK 0001055951

$53M4.1M0.98%Q2 2026 02

Boxer Capital Management, LLC

CIK 0002018299

$40M3.1M3.02%Q2 2026 03

Atlas Venture Life Science Advisors, LLC

CIK 0001917529

$35M2.7M3.93%Q2 2026 04

RA CAPITAL MANAGEMENT, L.P.

CIK 0001346824

$30M2.3M0.26%Q2 2026 05

Opaleye Management Inc.

CIK 0001595855

$12M931K1.07%Q2 2026 06

Logos Global Management LP

CIK 0001792126

$10M800K0.44%Q2 2026 07

SummitTX Capital, L.P.

CIK 0002052310

$9M734K0.24%Q2 2026 08

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$7M519K0.00%Q2 2026 09

Woodline Partners LP

CIK 0001784547

$4M286K0.01%Q2 2026 10

AMERICAN CENTURY COMPANIES INC

CIK 0000748054

$3M273K0.00%Q2 2026 11

Sanofi

CIK 0001121404

$3M244K0.58%Q2 2026 12

ACORN CAPITAL ADVISORS, LLC

CIK 0002054410

$3M216K0.75%Q2 2026 13

BOOTHBAY FUND MANAGEMENT, LLC

CIK 0001549230

$2M192K0.03%Q2 2026 14

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$2M180K0.00%Q2 2026 15

MONIMUS CAPITAL MANAGEMENT, LP

CIK 0001848831

$2M132K0.39%Q2 2026 16

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$2M123K0.00%Q2 2026 17

CITADEL ADVISORS LLC

CIK 0001423053

$2M121K0.00%Q2 2026 18

BlackRock, Inc.

CIK 0002012383

$2M119K0.00%Q2 2026 19

ACADIAN ASSET MANAGEMENT LLC

CIK 0000916542

$1M173K0.00%Q1 2026 20

MARSHALL WACE, LLP

CIK 0001318757

$854K67K0.00%Q2 2026

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