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Equibles

TWO SIGMA INVESTMENTS, LP

Position in ATNM — Actinium Pharmaceuticals, Inc.

CIK 1179392 NEW YORK, NY
Back to ATNM Full portfolio

Position in ATNM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$253,995
-$81,487 QoQ
Shares Held
259,179
-23.1% QoQ
Ownership
0.824%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#8
of 47 holders
Holding Since
Jun 2022
10 quarters on record
Voting authority Sole 98% Shared 0% None 2%

Common Shares in ATNM Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

TWO SIGMA INVESTMENTS, LP holds $7,283,390,440 across 343 Biotechnology names. ATNM ranks #283 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ALNY
Alnylam Pharmaceuticals, Inc.
 1,875,937 $564,713,315
2 MRNA
Moderna, Inc.
 7,193,530 $503,762,905
3 IONS
Ionis Pharmaceuticals Inc
 6,252,342 $495,748,197
4 REGN
Regeneron Pharmaceuticals, Inc.
 656,124 $409,119,558
5 BBIO
BridgeBio Pharma, Inc.
 4,722,185 $351,708,338
6 EXEL
Exelixis, Inc.
 4,209,861 $229,058,537
7 INCY
Incyte Corp
 2,003,559 $227,123,448
8 ARGX
Argenx SE
 185,638 $172,229,367

All Filings in ATNM

Export CSV
10 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $253,995 259,179
2026-03-31 $335,482 337,168
2025-12-31 $285,181 209,692
2025-09-30 $374,868 234,293
2025-06-30 $65,163 46,545
2023-06-30 $144,452 19,468
2023-03-31 $430,381 45,543
2022-12-31 $2,271,858 213,320
2022-09-30 $116,795 15,826
2022-06-30 $275,218 57,218