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Business Summary
Filings
Ownership
Valuation
Ownership — SRZN
Institutional Holdings
Insider Transactions
US Institutional Ownership
87.6%
Institution
Shares
Value
Ownership %
Change
Filing Date
TCG Crossover Management, LLC
1.47M
$38.0M
12.53%
--
2026-06-30
Boxer Capital Management, LLC
1.11M
$26.0M
9.41%
+339.4K
2026-06-30
MILLENNIUM MANAGEMENT LLC
683.1K
$17.0M
5.81%
-48.1K
2026-06-30
Point72 Asset Management, L.P.
664.3K
$17.0M
5.65%
--
2026-06-30
Venrock Adviser, LLC
632.9K
$16.0M
5.38%
--
2026-06-30
STEMPOINT CAPITAL LP
602.8K
$13.0M
5.13%
+406.8K
2026-06-30
PERCEPTIVE ADVISORS LLC
504.0K
$13.0M
4.29%
+274.6K
2026-06-30
Spruce Street Capital LP
432.0K
$11.0M
3.68%
--
2026-06-30
BlackRock, Inc.
394.9K
$10.0M
3.36%
+367.0K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
392.6K
$10.0M
3.34%
+223.5K
2026-06-30
BRAIDWELL LP
390.8K
$10.0M
3.32%
-5.3K
2026-06-30
Kalehua Capital Management LLC
385.2K
$9.0M
3.28%
--
2026-06-30
Vestal Point Capital, LP
304.7K
$7.0M
2.59%
-33.9K
2026-06-30
5AM Venture Management, LLC
271.3K
$7.0M
2.31%
-116.3K
2026-06-30
Vivo Capital, LLC
260.0K
$6.0M
2.21%
--
2026-06-30
Balyasny Asset Management L.P.
205.0K
$5.0M
1.74%
+1.1K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
201.7K
$5.0M
1.72%
+135.8K
2026-06-30
ACUTA CAPITAL PARTNERS, LLC
173.4K
$4.0M
1.48%
+548
2026-06-30
STATE STREET CORP
133.1K
$3.0M
1.13%
+105.4K
2026-06-30
GOLDMAN SACHS GROUP INC
113.5K
$2.0M
0.97%
+87.7K
2026-06-30
ADAGE CAPITAL PARTNERS GP, L.L.C.
88.7K
$2.0M
0.75%
--
2026-06-30
Euclidean Capital LLC
87.7K
$2.0M
0.75%
--
2026-06-30
TWO SIGMA INVESTMENTS, LP
71.1K
$1.0M
0.61%
--
2026-06-30
Stonepine Capital Management, LLC
68.0K
$4.0M
0.58%
+35.0K
2026-06-30
NORTHERN TRUST CORP
63.6K
$1.0M
0.54%
+51.3K
2026-06-30
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