AI Holders Summary · Q1 2026

80 institutions reported BLTE in Q1 2026. Darwin Global Management, Ltd. leads at 33.3% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter

Darwin Global Management, Ltd.

CIK 0001839209

$456M3.1M12.10%Q1 2026 02

Paradigm Biocapital Advisors LP

CIK 0001855655

$178M1.1M3.63%Q1 2026 03

UBS Group AG

CIK 0001610520

$123M768K0.02%Q1 2026 04

RTW INVESTMENTS, LP

CIK 0001493215

$114M715K1.13%Q1 2026 05

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$91M570K0.04%Q1 2026 06

Holocene Advisors, LP

CIK 0001700574

$79M494K0.19%Q1 2026 07

EVENTIDE ASSET MANAGEMENT, LLC

CIK 0001442891

$57M358K0.94%Q1 2026 08

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$45M282K0.01%Q1 2026 09

DEERFIELD MANAGEMENT COMPANY, L.P.

CIK 0001009258

$37M234K0.48%Q4 2025 10

MORGAN STANLEY

CIK 0000895421

$32M201K0.00%Q1 2026 11

MARSHALL WACE, LLP

CIK 0001318757

$31M193K0.03%Q4 2025 12

PERCEPTIVE ADVISORS LLC

CIK 0001224962

$24M152K0.47%Q1 2026 13

Patient Square Capital LP

CIK 0001819257

$19M117K3.30%Q1 2026 14

Duquesne Family Office LLC

CIK 0001536411

$17M106K0.50%Q1 2026 15

GOLDMAN SACHS GROUP INC

CIK 0000886982

$17M106K0.00%Q1 2026 16

MPM BioImpact LLC

CIK 0001687078

$14M88K1.08%Q1 2026 17

Affinity Asset Advisors, LLC

CIK 0001773195

$10M65K0.54%Q1 2026 18

FRED ALGER MANAGEMENT, LLC

CIK 0000003520

$10M63K0.04%Q1 2026 19

PFM Health Sciences, LP

CIK 0001442756

$9M59K0.86%Q1 2026 20

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$8M52K0.01%Q1 2026

Page 1 of 4

60 more holders available. Log in →