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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — ABEO
Institutional Holdings
Insider Transactions
US Institutional Ownership
68.0%
Institution
Shares
Value
Ownership %
Change
Filing Date
Nantahala Capital Management, LLC
6.03M
$27.0M
10.61%
+550.0K
2026-03-31
BlackRock, Inc.
3.20M
$14.0M
5.62%
+35.7K
2026-03-31
AIGH Capital Management LLC
3.10M
$13.0M
5.45%
+1.10M
2026-03-31
Cable Car Capital, LP
3.01M
$13.0M
5.29%
+507.3K
2026-03-31
SUVRETTA CAPITAL MANAGEMENT, LLC
2.68M
$11.0M
4.71%
--
2026-03-31
VANGUARD CAPITAL MANAGEMENT LLC
2.16M
$9.0M
3.81%
--
2026-03-31
Propel Bio Management, LLC
1.33M
$6.0M
2.34%
--
2026-03-31
GEODE CAPITAL MANAGEMENT, LLC
1.21M
$5.0M
2.13%
+72.7K
2026-03-31
GOLDMAN SACHS GROUP INC
1.13M
$5.0M
1.99%
+628.4K
2026-03-31
STATE STREET CORP
957.3K
$4.0M
1.68%
+58.9K
2026-03-31
NAN FUNG TRINITY (HK) LTD
956.8K
$4.0M
1.68%
--
2026-03-31
Stonepine Capital Management, LLC
846.6K
$3.0M
1.49%
-62.9K
2026-03-31
AWM Investment Company, Inc.
803.1K
$3.0M
1.41%
+29.0K
2026-03-31
683 Capital Management, LLC
770.0K
$3.0M
1.35%
--
2026-03-31
SILVERARC CAPITAL MANAGEMENT, LLC
648.9K
$2.0M
1.14%
+21.2K
2026-03-31
J. Goldman & Co LP
640.5K
$2.0M
1.13%
+241.6K
2026-03-31
Diametric Capital, LP
611.5K
$2.0M
1.08%
-82.9K
2026-03-31
Balyasny Asset Management L.P.
589.8K
$2.0M
1.04%
-1.9K
2026-03-31
CITIGROUP INC
522.4K
$2.0M
0.92%
+1.4K
2026-03-31
Simplify Asset Management Inc.
508.0K
$2.0M
0.89%
+7.6K
2026-03-31
NATIONAL BANK OF CANADA /FI/
500.0K
$2.0M
0.88%
--
2026-03-31
Knoll Capital Management, LLC
485.5K
$2.0M
0.85%
+249.6K
2026-03-31
NORTHERN TRUST CORP
436.0K
$1.0M
0.77%
+16.6K
2026-03-31
MILLENNIUM MANAGEMENT LLC
425.4K
$1.0M
0.75%
+81.9K
2026-03-31
TANG CAPITAL MANAGEMENT LLC
400.0K
$1.0M
0.70%
-600.0K
2026-03-31
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