Fairmount

Portfolio Co Investors 2026 for Fairmount: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.

Fairmount accounts for 8 tracked companies with verified cap-table data, 8 of which disclose round sizes totalling $2.6B. The median disclosed raise is $370M, and the largest is Mirador Therapeutics at $650M, ahead of Spyre Therapeutics ($644M) and Prometheus Biosciences ($400M).

The names that recur most often on these co-invested cap tables are Fairmount (8 companies), Venrock Healthcare Capital Partners (7 companies), OrbiMed (3 companies), Sanofi Ventures (3 companies), TCGX (3 companies), Fidelity Management & Research Company (3 companies). By latest disclosed round, the market skews Series A (4), Series B (2), Growth (1).

Companies tracked: 8
Disclosed funding total: $2.6B across 8 companies
Median disclosed raise: $370M
Largest raise: Mirador Therapeutics — $650M
Stage mix: Series A 4 · Series B 2 · Growth 1
Most recent dated round: 2025-12-15

Best funded Fairmount companies

Mirador Therapeutics — $650M (latest: Series B)
Spyre Therapeutics — $644M (latest: Growth)
Prometheus Biosciences — $400M (latest: Series A)
Candid Therapeutics — $370M (latest: Series A)
Korsana Biosciences — $175M (latest: Series A)
Apogee Therapeutics — $169M (latest: Series B)
Jade Biosciences — $125M
Dianthus Therapeutics — $100M (latest: Series A)

Fairmount Funds Management LLC — related firms and companies (56)

Fairmount Funds Management LLC profile · All research reports