Portfolio Co Investors 2026 for Longitude Capital: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Longitude Capital accounts for 33 tracked companies with verified cap-table data, 33 of which disclose round sizes totalling $7.5B. The median disclosed raise is $135M, and the largest is Vaxcyte at $2.4B, ahead of Somatus ($500M) and Nalu Medical ($396M).
The names that recur most often on these co-invested cap tables are Longitude Capital (33 companies), RA Capital Management (5 companies), Omega Funds (5 companies), Novo Holdings (4 companies), OrbiMed (4 companies), Decheng Capital (3 companies). By latest disclosed round, the market skews Series B (10), Series A (9), Series C (6), Series D (3).
Companies tracked: 33
Disclosed funding total: $7.5B across 33 companies
Median disclosed raise: $135M
Largest raise: Vaxcyte — $2.4B
Stage mix: Series B 10 · Series A 9 · Series C 6 · Series D 3
