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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — ALDX
Institutional Holdings
Insider Transactions
US Institutional Ownership
58.9%
Institution
Shares
Value
Ownership %
Change
Filing Date
Knoll Capital Management, LLC
5.48M
$11.0M
9.08%
--
2026-06-30
AQR CAPITAL MANAGEMENT LLC
3.75M
$7.0M
6.22%
+921.7K
2026-06-30
KINGDON CAPITAL MANAGEMENT, L.L.C.
2.65M
$5.0M
4.40%
+500.0K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
2.36M
$5.0M
3.92%
-1.9K
2026-06-30
D. E. Shaw & Co., Inc.
1.94M
$4.0M
3.22%
+536.3K
2026-06-30
MARSHALL WACE, LLP
1.51M
$3.0M
2.50%
+1.38M
2026-06-30
683 Capital Management, LLC
1.45M
$3.0M
2.40%
-50.0K
2026-06-30
JANE STREET GROUP, LLC
1.40M
$2.0M
2.31%
+255.4K
2026-06-30
ARDSLEY ADVISORY PARTNERS LP
1.27M
$2.0M
2.11%
+25.0K
2026-06-30
BlackRock, Inc.
1.26M
$2.0M
2.08%
-2.51M
2026-06-30
Qube Research & Technologies Ltd
1.13M
$2.0M
1.87%
+1.04M
2026-06-30
RENAISSANCE TECHNOLOGIES LLC
882.0K
$1.0M
1.46%
+18.8K
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
794.9K
$1.0M
1.32%
-12.9K
2026-06-30
GOLDMAN SACHS GROUP INC
725.4K
$1.0M
1.20%
+182.3K
2026-06-30
JACOBS LEVY EQUITY MANAGEMENT, INC
646.8K
$1.0M
1.07%
-150.0K
2026-06-30
MORGAN STANLEY
608.3K
$1.0M
1.01%
+89.7K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
596.0K
$1.0M
0.99%
-655.6K
2026-06-30
CITADEL ADVISORS LLC
542.7K
$1.0M
0.90%
+125.9K
2026-06-30
DIMENSIONAL FUND ADVISORS LP
529.1K
$1.0M
0.88%
-95.1K
2026-06-30
GSA CAPITAL PARTNERS LLP
472.6K
$1.0M
0.78%
+225.4K
2026-06-30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
421.2K
--
0.70%
--
2026-06-30
MILLENNIUM MANAGEMENT LLC
360.4K
--
0.60%
-634.9K
2026-06-30
UBS Group AG
301.9K
--
0.50%
-235.6K
2026-06-30
VANGUARD FIDUCIARY TRUST CO
298.2K
--
0.49%
-40.4K
2026-06-30
XTX Topco Ltd
254.8K
--
0.42%
+179.6K
2026-06-30
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