AI Holders Summary · Q1 2026

143 institutions reported ALEC in Q1 2026. TCG Crossover Management, LLC leads at 16.1% 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

TCG Crossover Management, LLC

CIK 0001839948

$22M10.0M0.62%Q1 2026 02

BlackRock, Inc.

CIK 0002012383

$17M7.7M0.00%Q1 2026 03

ACADIAN ASSET MANAGEMENT LLC

CIK 0000916542

$9M4.0M0.01%Q1 2026 04

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$8M3.7M0.00%Q1 2026 05

Merck & Co., Inc.

CIK 0000310158

$8M3.5M2.18%Q1 2026 06

BALYASNY ASSET MANAGEMENT L.P.

CIK 0001218710

$6M2.9M0.01%Q1 2026 07

Foresite Capital Management IV, LLC

CIK 0001704132

$6M3.9M2.64%Q4 2025 08

Nantahala Capital Management, LLC

CIK 0001472322

$6M2.8M0.22%Q1 2026 09

Vanguard Portfolio Management

CIK 0002100121· Index

$6M2.6M0.00%Q1 2026 10

683 Capital Management, LLC

CIK 0001404574

$5M3.4M0.23%Q4 2025 11

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$5M2.3M0.00%Q1 2026 12

JACOBS LEVY EQUITY MANAGEMENT, INC

CIK 0000884414

$5M2.2M0.02%Q1 2026 13

Spruce Street Capital LP

CIK 0002050194

$5M2.1M1.09%Q1 2026 14

Ikarian Capital, LLC

CIK 0001778253

$4M2.1M0.36%Q1 2026 15

Kynam Capital Management, LP

CIK 0001907884

$4M2.0M0.27%Q1 2026 16

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$4M2.0M0.00%Q1 2026 17

STATE STREET CORP

CIK 0000093751

$4M1.9M0.00%Q1 2026 18

FMR LLC

CIK 0000315066

$4M1.8M0.00%Q1 2026 19

D. E. Shaw & Co., Inc.

CIK 0001009207

$4M2.4M0.00%Q4 2025 20

MEDICI CAPITAL LLC

CIK 0001777234

$4M1.7M4.37%Q1 2026

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