Darwin Global Management, Ltd. — 13F Holdings & Portfolio

CIK 1839209 · latest 13F-HR filed 2026-08-14

Darwin Global Management, Ltd. manages $3.76B in 13F-reported U.S. long-equity assets across 5 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are RVMD (54.45%), INSM (17.91%), BLTE (12.14%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 0 new positions, exited 1, added to 2, and trimmed 1.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM

$3.76B

Long-equity book

Holdings

5

Distinct positions

Period

2026-06-30

Filed 2026-08-14

Q/Q Activity

+0 / −1 / ↑2 / ↓1

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Firm Profile & Key People
Name Title / Status Ownership Type

Quarter-over-quarter changes

Share-count changes vs the prior 13F.

Top Adds (vs prior quarter)

  • REVOLUTION MEDICINES INC$1.84B +898.9%
  • ROIVANT SCIENCES LTD$54.8M +30.5%
Show all 2 →

Top Trims

  • INSMED INC-$1.90B -73.9%
Show all 1 →

New Positions

  • No new positions this quarter.
Show all 0 →

Exited Positions

  • DIANTHUS THERAPEUTICS INC$1.5M
Show all 1 →
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 REVOLUTION MEDICINES INC RVMD 76155X100 $2.05B 54.45% 10,629,822 SH
2 INSMED INC INSM 457669307 $673.6M 17.91% 6,431,163 SH
3 BELITE BIO INC BLTE 07782B104 $456.6M 12.14% 3,077,219 SH
4 ABIVAX SA ABVX 00370M103 $348.2M 9.26% 3,621,583 SH
5 ROIVANT SCIENCES LTD ROIV G76279101 $234.3M 6.23% 6,747,300 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $3.76B 5 0001892688-26-000126
2026-03-31 2026-05-15 $3.77B 6 0001892688-26-000087
2025-12-31 2026-02-17 $4.94B 6 0001892688-26-000041
2025-09-30 2025-11-14 $3.60B 5 0001892688-25-000196
Filer Information
Address
WHITELEY CHAMBERS
DON STREET
ST. HELIER, Y9 JE2 4TR
Phone
(212) 729-7524
Filing Manager
Darwin Global Management, Ltd.
ST. HELIER, Y9
Signatory
SARAH MONIME
CHIEF COMPLIANCE OFFICER