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EcoR1 Capital, LLC

Position in AKTS — Aktis Oncology, Inc.

CIK 1587114 San Francisco, CA

Position in AKTS

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$155,492,635
+$69,182,885 QoQ
Shares Held
4,824,469
0.0% QoQ
Ownership
8.67%
of shares outstanding
% of Portfolio
7.71%
of 13F equity value
Holder Rank
#2
of 114 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AKTS Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

EcoR1 Capital, LLC holds $1,935,887,028 across 29 Biotechnology names. AKTS ranks #3 (8.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 AKTS
Aktis Oncology, Inc.
This page
4,824,469 $155,492,635

All Filings in AKTS

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3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $155,492,635 4,824,469
2026-03-31 $86,309,750 4,824,469
2026-01-12 $104,932,200 4,824,469