AI Holders Summary · Q2 2026

294 institutions reported KYMR in Q2 2026. FMR LLC leads at 17.8% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(3 on this page)

#HolderValueShares% port.Quarter

FMR LLC

CIK 0000315066

$1.4B12.3M0.06%Q2 2026 02

Avoro Capital Advisors LLC

CIK 0001633313

$857M7.5M7.70%Q2 2026 03

BAKER BROS. ADVISORS LP

CIK 0001263508

$674M8.7M3.94%Q4 2025 04

BlackRock, Inc.

CIK 0002012383

$635M5.5M0.01%Q2 2026 05

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$505M6.1M0.06%Q1 2026 06

T. Rowe Price Investment Management, Inc.

CIK 0001897612

$455M5.5M0.31%Q1 2026 07

BVF INC/IL

CIK 0001056807

$428M5.5M14.41%Q4 2025 08

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$421M3.7M0.07%Q2 2026 09

Vanguard Portfolio Management

CIK 0002100121· Index

$343M3.0M0.02%Q2 2026 10

Siren, L.L.C.

CIK 0002005245

$337M2.9M6.81%Q2 2026 11

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$336M2.9M0.01%Q2 2026 12

Atlas Venture Life Science Advisors, LLC

CIK 0001917529

$327M2.8M37.05%Q2 2026 13

STATE STREET CORP

CIK 0000093751

$314M2.7M0.01%Q2 2026 14

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$208M1.8M0.01%Q2 2026 15

Capital Research Global Investors

CIK 0001422848

$159M1.4M0.02%Q2 2026 16

GOLDMAN SACHS GROUP INC

CIK 0000886982

$136M1.2M0.01%Q2 2026 17

UBS Group AG

CIK 0001610520

$116M1.0M0.01%Q2 2026 18

DRIEHAUS CAPITAL MANAGEMENT LLC

CIK 0000938206

$105M919K0.61%Q2 2026 19

Merck & Co., Inc.

CIK 0000310158

$89M772K16.82%Q2 2026 20

NORGES BANK

CIK 0001374170· Sovereign

$87M757K0.01%Q2 2026

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