AI Holders Summary · Q2 2026

133 institutions reported ABEO in Q2 2026. Nantahala Capital Management, LLC leads at 31.1% 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

Nantahala Capital Management, LLC

CIK 0001472322

$76M12.3M1.26%Q2 2026 02

BlackRock, Inc.

CIK 0002012383

$21M3.4M0.00%Q2 2026 03

Cable Car Capital, LP

CIK 0001699575

$19M3.0M0.40%Q2 2026 04

AIGH Capital Management LLC

CIK 0001835943

$18M3.0M1.16%Q2 2026 05

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$14M2.2M0.00%Q2 2026 06

SUVRETTA CAPITAL MANAGEMENT, LLC

CIK 0001569064

$12M2.7M0.31%Q1 2026 07

OneDigital Investment Advisors LLC

CIK 0001690370

$10M1.7M0.09%Q2 2026 08

AWM Investment Company, Inc.

CIK 0001535264

$9M1.5M0.80%Q2 2026 09

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$8M1.3M0.00%Q2 2026 10

KENNEDY CAPITAL MANAGEMENT LLC

CIK 0000884589

$8M1.2M0.14%Q2 2026 11

GOLDMAN SACHS GROUP INC

CIK 0000886982

$8M1.2M0.00%Q2 2026 12

STATE STREET CORP

CIK 0000093751

$6M1.0M0.00%Q2 2026 13

Propel Bio Management, LLC

CIK 0001969764

$6M983K3.18%Q2 2026 14

NAN FUNG TRINITY (HK) Ltd

CIK 0001781880

$6M957K0.58%Q2 2026 15

Diametric Capital, LP

CIK 0001719087

$5M755K0.49%Q2 2026 16

J. Goldman & Co LP

CIK 0001412741

$4M678K0.11%Q2 2026 17

683 Capital Management, LLC

CIK 0001404574

$4M770K0.18%Q4 2025 18

SILVERARC CAPITAL MANAGEMENT, LLC

CIK 0001816307

$4M610K0.39%Q2 2026 19

Rubric Capital Management LP

CIK 0001687509

$4M609K0.03%Q2 2026 20

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$4M603K0.00%Q2 2026

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