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Equibles

RTW INVESTMENTS, LP

Position in CGEM — Cullinan Therapeutics, Inc.

CIK 1493215 NEW YORK, NY
Back to CGEM Full portfolio

Position in CGEM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$43,054,758
+$18,813,067 QoQ
Shares Held
2,364,347
+38.6% QoQ
Ownership
3.67%
of shares outstanding
% of Portfolio
0.37%
of 13F equity value
Holder Rank
#9
of 183 holders
Holding Since
Jun 2024
9 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CGEM Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

RTW INVESTMENTS, LP holds $9,530,420,260 across 63 Biotechnology names. CGEM ranks #35 (0.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MDGL
Madrigal Pharmaceuticals, Inc.
 1,993,687 $1,070,510,234
2 ARGX
Argenx SE
 709,446 $658,202,715
3 PTCT
Ptc Therapeutics, Inc.
 7,746,415 $631,875,071
4 PTGX
Protagonist Therapeutics, Inc
 5,061,175 $620,398,831
5 CGON
CG Oncology, Inc.
 8,514,590 $604,961,619
6 INSM
INSMED Inc
 4,842,880 $516,347,865
7 TNGX
Tango Therapeutics, Inc.
 13,900,620 $434,533,381
8 SYRE
Spyre Therapeutics, Inc.
 4,251,996 $377,492,204

All Filings in CGEM

Export CSV
9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $43,054,758 2,364,347
2026-03-31 $24,241,691 1,705,960
2025-12-31 $17,656,686 1,705,960
2025-09-30 $10,116,342 1,705,960
2025-06-30 $12,845,878 1,705,960
2025-03-31 $12,914,117 1,705,960
2024-12-31 $20,778,592 1,705,960
2024-09-30 $28,557,770 1,705,960
2024-06-30 $18,357,867 1,052,630