Funding round
Mirador Series B
Mirador, which works in precision medicine development in San Diego, raised $250M in a Series B round announced on 30 Sep 2025, led by T. Rowe Price Investment Management, Inc. and Fidelity Management & Research Company. 16 firms took part. It is Mirador's second venture round on record; the one before was a Series A in Mar 2024.
$250M
Amount raised
Not disclosed
Post-money valuation
16
Investors
2 leads
Valuation
What this round says about the price
Mirador did not disclose a valuation in this round. It came 18 months after Mirador's Series A. It is 38% of the $650M Mirador has raised in the venture rounds on record. No later venture round is on record for Mirador.
Mirador's funding rounds
Mirador has 2 venture rounds on record. This one is highlighted.
- Series A 21 Mar 2024, led by ARCH Venture Partners $400M
- Series B this round 30 Sep 2025, led by T. Rowe Price Investment Management, Inc. and Fidelity Management & Research Company $250M
Investors
Who put money in
T. Rowe Price Investment Management, Inc. and Fidelity Management & Research Company led the round with 14 other firms.
Lead investors
- T. Rowe Price Investment Management, Inc. new investor
- Fidelity Management & Research Company new investor
Also in the round
- Adage Capital Partners L.P. new investor
- ARCH Venture Partners backs 99 venture-backed companies new investor
- backs 93 venture-backed companies new investor
- Fairmount new investor
- backs 20 venture-backed companies new investor
- backs 15 venture-backed companies new investor
- backs 16 venture-backed companies new investor
- backs 19 venture-backed companies new investor
- Invus backs 83 venture-backed companies new investor
- Logos Capital new investor
- Moore Strategic Ventures new investor
- Blue Owl Capital backs 36 venture-backed companies new investor
- backs 18 venture-backed companies new investor
- Venrock backs 93 venture-backed companies new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development, scaling operations and working capital.
- Product development
- Scaling operations
- Working capital
Comparable rounds
How it compares
107 Series B rounds in Biotechnology within a year either side disclosed an amount; the median was $63M, and this round was 4.0 times the median. The closest in time, other companies' Series B rounds in Biotechnology:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Biotechnology | 17 Sep 2025 | $87M | not disclosed | Bpifrance |
| Biotechnology | 21 Sep 2025 | $63M | not disclosed | Qiming Venture Partners and a globally renowned strategic investor |
| Biotechnology | 22 Sep 2025 | $60M | not disclosed | OrbiMed and SR One |
| Biotechnology | 7 Sep 2025 | $60M | not disclosed | Lapam Capital |
| Biotechnology | 3 Sep 2025 | $59M | not disclosed | Novalis Biotech and Sozo Ventures |
| Biotechnology | 4 Sep 2025 | $6.1M | not disclosed | Miyako Capital |
| Biotechnology | 5 Sep 2025 | $3.9M | not disclosed | not named |
| Biotechnology | 7 Aug 2025 | $153M | not disclosed | Kinnevik |
Sources
Where this comes from
Reported by 4 sources.
Questions
Frequently asked
How much did Mirador raise in its Series B round?
Mirador raised $250M in its Series B round, announced in Sep 2025.
Who led Mirador's Series B round?
T. Rowe Price Investment Management, Inc. and Fidelity Management & Research Company led it, with Adage Capital Partners L.P., ARCH Venture Partners, OrbiMed, Fairmount and Point72 and 9 more.
What was Mirador's valuation at the Series B round?
It was not disclosed.
How does it compare with other Series B rounds in Biotechnology?
107 Series B rounds in Biotechnology within a year either side disclosed an amount; the median was $63M, and this round was 4.0 times the median.