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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — PSNL
Institutional Holdings
Insider Transactions
US Institutional Ownership
78.0%
Institution
Shares
Value
Ownership %
Change
Filing Date
Merck & Co., Inc.
14.04M
$188.0M
13.20%
--
2026-06-30
ARK Investment Management LLC
8.27M
$110.0M
7.78%
+327.2K
2026-06-30
BlackRock, Inc.
7.08M
$94.0M
6.66%
+1.69M
2026-06-30
LIGHTSPEED MANAGEMENT COMPANY, L.L.C.
6.10M
$81.0M
5.74%
-2.06M
2026-06-30
AMERIPRISE FINANCIAL INC
6.09M
$81.0M
5.72%
-1.51M
2026-06-30
Deep Track Capital, LP
4.00M
$53.0M
3.76%
+1.00M
2026-06-30
Aberdeen Group plc
3.75M
$50.0M
3.52%
+259.0K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
3.01M
$40.0M
2.83%
+141.7K
2026-06-30
Casdin Capital, LLC
2.55M
$34.0M
2.40%
+950.0K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
1.82M
$24.0M
1.71%
+524.8K
2026-06-30
BANK OF AMERICA CORP /DE/
1.82M
$24.0M
1.71%
+1.71M
2026-06-30
AIGH Capital Management LLC
1.72M
$22.0M
1.61%
-1.19M
2026-06-30
Blue Water Life Science Advisors, LP
1.68M
$22.0M
1.58%
--
2026-06-30
DIMENSIONAL FUND ADVISORS LP
1.50M
$20.0M
1.41%
+430.7K
2026-06-30
STATE STREET CORP
1.49M
$19.0M
1.40%
+352.9K
2026-06-30
MORGAN STANLEY
1.27M
$17.0M
1.19%
+1.03M
2026-06-30
GOLDMAN SACHS GROUP INC
1.17M
$15.0M
1.10%
+432.7K
2026-06-30
HRT FINANCIAL LP
930.8K
$12.0M
0.88%
+721.9K
2026-06-30
JANE STREET GROUP, LLC
865.7K
$11.0M
0.81%
+830.2K
2026-06-30
Nuveen, LLC
753.0K
$10.0M
0.71%
+409.5K
2026-06-30
STEMPOINT CAPITAL LP
717.8K
$4.0M
0.67%
--
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
659.8K
$8.0M
0.62%
+99.3K
2026-06-30
NORTHERN TRUST CORP
632.8K
$8.0M
0.59%
+227.0K
2026-06-30
Trexquant Investment LP
600.2K
$8.0M
0.56%
--
2026-06-30
HOWLAND CAPITAL MANAGEMENT LLC
555.6K
$7.0M
0.52%
+8.5K
2026-06-30
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