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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — ERAS
Institutional Holdings
Insider Transactions
US Institutional Ownership
87.9%
Institution
Shares
Value
Ownership %
Change
Filing Date
Frazier Life Sciences Management, L.P.
24.68M
$399.0M
7.94%
+1.95M
2026-03-31
T. Rowe Price Investment Management, Inc.
21.26M
$343.0M
6.84%
+16.47M
2026-03-31
BlackRock, Inc.
20.15M
$326.0M
6.48%
+4.55M
2026-03-31
VR ADVISER, LLC
16.38M
$265.0M
5.27%
-1.47M
2026-03-31
RTW INVESTMENTS, LP
16.16M
$261.0M
5.20%
+16.01M
2026-03-31
Vivo Capital, LLC
12.15M
$196.0M
3.91%
+2.88M
2026-03-31
VANGUARD CAPITAL MANAGEMENT LLC
11.25M
$182.0M
3.62%
--
2026-03-31
Siren, L.L.C.
11.24M
$181.0M
3.62%
+2.49M
2026-03-31
Logos Global Management LP
11.15M
$180.0M
3.59%
-1.85M
2026-03-31
Paradigm Biocapital Advisors LP
10.39M
$168.0M
3.34%
-3.77M
2026-03-31
STATE STREET CORP
9.30M
$150.0M
2.99%
+3.13M
2026-03-31
ARCH Venture Management, LLC
7.09M
$114.0M
2.28%
-3.96M
2026-03-31
GEODE CAPITAL MANAGEMENT, LLC
6.00M
$97.0M
1.93%
+1.07M
2026-03-31
Cormorant Asset Management, LP
5.80M
$93.0M
1.87%
--
2026-03-31
Affinity Asset Advisors, LLC
5.35M
$86.0M
1.72%
+1.45M
2026-03-31
Balyasny Asset Management L.P.
5.14M
$83.0M
1.66%
+5.05M
2026-03-31
GOLDMAN SACHS GROUP INC
4.88M
$78.0M
1.57%
+1.54M
2026-03-31
JANUS HENDERSON GROUP PLC
3.71M
$59.0M
1.19%
--
2026-03-31
5AM Venture Management, LLC
3.49M
$56.0M
1.12%
-1.92M
2026-03-31
SUVRETTA CAPITAL MANAGEMENT, LLC
3.43M
$55.0M
1.11%
-11.07M
2026-03-31
Commodore Capital LP
3.17M
$51.0M
1.02%
--
2026-03-31
BANK OF AMERICA CORP /DE/
3.06M
$49.0M
0.98%
+1.44M
2026-03-31
AH CAPITAL MANAGEMENT, L.L.C.
2.86M
$46.0M
0.92%
--
2026-03-31
Woodline Partners LP
2.83M
$45.0M
0.91%
+900.9K
2026-03-31
ALLIANCEBERNSTEIN L.P.
2.64M
$9.0M
0.85%
+2.44M
2026-03-31
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