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Business Summary
Filings
Ownership
Valuation
Ownership — STTK
Institutional Holdings
Insider Transactions
US Institutional Ownership
83.3%
Institution
Shares
Value
Ownership %
Change
Filing Date
T. Rowe Price Investment Management, Inc.
13.43M
$93.0M
13.34%
+3.57M
2026-06-30
ADAGE CAPITAL PARTNERS GP, L.L.C.
8.12M
$56.0M
8.06%
+3.48M
2026-06-30
Redmile Group, LLC
6.89M
$47.0M
6.84%
+1.35M
2026-06-30
ORBIMED ADVISORS LLC
6.31M
$43.0M
6.26%
--
2026-06-30
Prosight Management, LP
5.96M
$41.0M
5.91%
+953.4K
2026-06-30
BlackRock, Inc.
3.94M
$27.0M
3.91%
+3.43M
2026-06-30
Frazier Life Sciences Management, L.P.
3.75M
$26.0M
3.72%
--
2026-06-30
NEXTBio Capital Management LP
3.73M
$25.0M
3.70%
+577.4K
2026-06-30
Deep Track Capital, LP
3.71M
$25.0M
3.68%
--
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
3.21M
$22.0M
3.18%
+930.7K
2026-06-30
PRICE T ROWE ASSOCIATES INC /MD/
2.64M
$18.0M
2.62%
+858.3K
2026-06-30
PINNACLE ASSOCIATES LTD
1.87M
$12.0M
1.86%
+503.2K
2026-06-30
WELLINGTON MANAGEMENT GROUP LLP
1.77M
$12.0M
1.76%
--
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
1.58M
$10.0M
1.57%
+939.1K
2026-06-30
CLARK ESTATES INC/NY
1.43M
$9.0M
1.42%
-45.5K
2026-06-30
Aberdeen Group plc
1.41M
$9.0M
1.40%
+246.5K
2026-06-30
Point72 Asset Management, L.P.
1.17M
$8.0M
1.16%
+139.7K
2026-06-30
683 Capital Management, LLC
1.16M
$8.0M
1.15%
+357.2K
2026-06-30
STATE STREET CORP
1.03M
$7.0M
1.02%
+762.6K
2026-06-30
Boxer Capital Management, LLC
1.00M
$6.0M
0.99%
--
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
947.0K
$6.0M
0.94%
--
2026-06-30
RENAISSANCE TECHNOLOGIES LLC
743.8K
$5.0M
0.74%
+139.3K
2026-06-30
GOLDMAN SACHS GROUP INC
593.3K
$4.0M
0.59%
+401.9K
2026-06-30
TD Asset Management Inc
558.9K
$3.0M
0.55%
+176.2K
2026-06-30
NORTHERN TRUST CORP
520.3K
$3.0M
0.52%
+394.3K
2026-06-30
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