Portfolio Co Investors 2026 for Robert Nelsen: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Robert Nelsen accounts for 3 tracked companies with verified cap-table data, 3 of which disclose round sizes totalling $306M. The median disclosed raise is $40M, and the largest is Encoded Therapeutics at $240M, ahead of Cero Therapeutics ($40M) and Katalyst ($26M).
The names that recur most often on these co-invested cap tables are Robert Nelsen (3 companies), Altitude Life Science Ventures (2 companies), GV (1 company), Menlo Ventures (1 company), Anne Wojcicki (1 company), ARCH Venture Partners (1 company). By latest disclosed round, the market skews Series A (2), Series D (1).