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Business Summary
Filings
Ownership
Valuation
Ownership — STOK
Institutional Holdings
Insider Transactions
US Institutional Ownership
100.0%
Institution
Shares
Value
Ownership %
Change
Filing Date
BlackRock, Inc.
5.88M
$192.0M
9.42%
+491.6K
2026-06-30
RTW INVESTMENTS, LP
5.62M
$184.0M
9.01%
--
2026-06-30
FMR LLC
5.31M
$173.0M
8.51%
-70.6K
2026-06-30
Lynx1 Capital Management LP
4.04M
$132.0M
6.47%
-725.3K
2026-06-30
Redmile Group, LLC
3.95M
$129.0M
6.32%
-218.2K
2026-06-30
WELLINGTON MANAGEMENT GROUP LLP
3.52M
$115.0M
5.64%
+423.6K
2026-06-30
MORGAN STANLEY
3.45M
$112.0M
5.53%
+29.5K
2026-06-30
BAKER BROS. ADVISORS LP
3.34M
$109.0M
5.35%
--
2026-06-30
TORONTO DOMINION BANK
3.17M
$103.0M
5.09%
--
2026-06-30
STATE STREET CORP
2.85M
$93.0M
4.57%
+575.7K
2026-06-30
PRICE T ROWE ASSOCIATES INC /MD/
2.66M
$87.0M
4.27%
+727.6K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
2.59M
$84.0M
4.15%
+231.3K
2026-06-30
BVF INC/IL
2.55M
$83.0M
4.08%
--
2026-06-30
T. Rowe Price Investment Management, Inc.
2.42M
$79.0M
3.87%
+2.16M
2026-06-30
Siren, L.L.C.
2.00M
$65.0M
3.20%
--
2026-06-30
DEERFIELD MANAGEMENT COMPANY, L.P.
1.82M
$59.0M
2.92%
--
2026-06-30
Jupiter Topco LLC
1.81M
$59.0M
2.91%
--
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
1.52M
$49.0M
2.44%
+202.0K
2026-06-30
Assenagon Asset Management S.A.
1.13M
$36.0M
1.81%
+221.4K
2026-06-30
DIMENSIONAL FUND ADVISORS LP
1.01M
$33.0M
1.62%
+24.0K
2026-06-30
Polar Capital Holdings Plc
833.7K
$27.0M
1.34%
-298.8K
2026-06-30
EcoR1 Capital, LLC
735.0K
$24.0M
1.18%
+635.0K
2026-06-30
MPM BIOIMPACT LLC
723.3K
$23.0M
1.16%
-43.7K
2026-06-30
Opaleye Management Inc.
700.0K
$22.0M
1.12%
--
2026-06-30
GOLDMAN SACHS GROUP INC
575.3K
$18.0M
0.92%
-255.4K
2026-06-30
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