AI Holders Summary · Q1 2026

55 institutions reported KLRS in Q1 2026. Samsara BioCapital, LLC leads at 71.1% 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

Samsara BioCapital, LLC

CIK 0001744967

$75M12.9M7.26%Q1 2026 02

RTW INVESTMENTS, LP

CIK 0001493215

$8M1.3M0.07%Q1 2026 03

Paradigm Biocapital Advisors LP

CIK 0001855655

$4M700K0.08%Q1 2026 04

Alyeska Investment Group, L.P.

CIK 0001453072

$3M404K0.01%Q4 2025 05

Siren, L.L.C.

CIK 0002005245

$3M436K0.07%Q1 2026 06

Ikarian Capital, LLC

CIK 0001778253

$2M360K0.17%Q1 2026 07

Propel Bio Management, LLC

CIK 0001969764

$2M296K1.08%Q1 2026 08

Kalehua Capital Management LLC

CIK 0002106181

$2M271K0.60%Q1 2026 09

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$1M255K0.00%Q1 2026 10

RAYMOND JAMES FINANCIAL INC

CIK 0000720005

$686K119K0.00%Q1 2026 11

683 Capital Management, LLC

CIK 0001404574

$680K81K0.03%Q4 2025 12

GOLDMAN SACHS GROUP INC

CIK 0000886982

$638K111K0.00%Q1 2026 13

MARSHALL WACE, LLP

CIK 0001318757

$615K73K0.00%Q4 2025 14

ADAR1 Capital Management, LLC

CIK 0001940272

$577K100K0.03%Q1 2026 15

Woodline Partners LP

CIK 0001784547

$577K100K0.00%Q1 2026 16

WHI TRUST Co LLC

CIK 0002013902

$563K97K0.42%Q1 2026 17

BOOTHBAY FUND MANAGEMENT, LLC

CIK 0001549230

$532K92K0.01%Q1 2026 18

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$505K88K0.00%Q1 2026 19

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$382K66K0.00%Q1 2026 20

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$344K60K0.00%Q1 2026

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