F-Prime Capital (formerly Fidelity Biosciences) is the venture capital arm of Fidelity Investments/FMR LLC, investing in healthcare and technology companies. It was formed in 2015 when Fidelity Biosciences merged with Devonshire Investors' technology venture fund.
Average disclosed round size is $51.6M (across 405 rounds with reported amounts).
Portfolio
273
Fund Size
—
Top Stage
Series A
Last 12 Mo
25
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
452 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Twin1 Ai | Seed | $20M | Aug 2026 |
 Silicon Data | Series A | $30.5M | Aug 2026 |
 Flourish | Series A | $26M | Jul 2026 |
 Cyclops | Series A | $20M | Jul 2026 |
 Pie | Series A | $19.5M | Jun 2026 |
 Immutrin | Series A | $87M | Mar 2026 |
 R1 Therapeutics | Series A | $77.5M | Mar 2026 |
 Jump | Series B | $80M | Feb 2026 |
| MMonark | Series A | $8.1M | Feb 2026 |
 Jump | Series B | $80M | Feb 2026 |
| MMonark Markets | Strategic | $8.1M | Feb 2026 |
 Tenpoint Therapeutics | Series B | — | Jan 2026 |
 Meld | Series A | $7M | Jan 2026 |
 Meld.io | Seed | $7M | Jan 2026 |
 Unbox | Series B | $28M | Jan 2026 |
| VVenice AI | Series A | $65M | Jan 2026 |
 Enumerix | Unknown | $26M | Jan 2026 |
| 33F Labs | Seed | $4M | Jan 2026 |
| R1 Therapeutics | Series A | $77.5M | Jan 2026 |
| Immutrin | Series A | $87M | Jan 2026 |
 Paradigm Health | Series B | $78M | Dec 2025 |
 Paradigm | Growth | — | Dec 2025 |
 Paradigm | Series B | $78M | Dec 2025 |
 Wellbeam | Series A | $10M | Nov 2025 |
 T-Therapeutics | Series A | $91M | Nov 2025 |
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Top Co-Investors
Fidelity Investments95 shared
Eight Roads80 shared
Y Combinator41 shared
ARCH Venture Partners38 shared
GV36 shared
General Catalyst25 shared
Polaris Partners22 shared
OrbiMed21 shared
.406 Ventures20 shared
Temasek Holdings (Private) Limited19 shared
Sofinnova Partners19 shared
New Enterprise Associates17 shared
Atlas Venture16 shared
Alexandria Venture Investments14 shared
Khosla Ventures12 shared
Rock Springs Capital12 shared
Norwest Venture Partners11 shared
Lightspeed Venture Partners11 shared
The Goldman Sachs Group, Inc.11 shared
Maverick Ventures11 shared
Last updated: 7 October 2026