Funding round
Retro Bio Series A
Retro Bio, which works in aging-related disease therapies development in Redwood City, raised $1.00B in a Series A round announced on 1 Jan 2025, at a $5.00B post-money valuation. 2 firms took part. It is Retro Bio's second venture round on record; the one before was a Seed in Jun 2022.
$1.00B
Amount raised
$5.00B
Post-money valuation
$4.00B pre-money
2
Investors
no lead named
20%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced Retro Bio at $5.00B after the new money. The $1.00B bought investors about 20% of the company. It came 31 months after Retro Bio's Seed. It is 85% of the $1.18B Retro Bio has raised in the venture rounds on record. No later venture round is on record for Retro Bio.
Retro Bio's funding rounds
Retro Bio has 2 venture rounds on record. This one is highlighted.
- Seed 1 Jun 2022 $180M
- Series A this round 1 Jan 2025 $1.00B$5.00B post-money
Investors
Who put money in
2 firms took part; no lead investor was named.
Investors
- OpenAI new investor
- Sam Altman
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
163 Series A rounds in Biotechnology within a year either side disclosed an amount; the median was $30M, and this round was 33 times the median. The closest in time, other companies' Series A rounds in Biotechnology:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Biotechnology | 10 Jan 2025 | $120M | not disclosed | TPG and New Enterprise Associates |
| Biotechnology | 15 Jan 2025 | $86M | not disclosed | GV |
| Biotechnology | 8 Jan 2025 | $67M | not disclosed | Frazier Life Sciences and Droia Ventures |
| Biotechnology | 9 Jan 2025 | $62M | not disclosed | Versant Ventures |
| Biotechnology | 15 Jan 2025 | $30M | not disclosed | Point72 |
| Biotechnology | 8 Jan 2025 | $21M | not disclosed | Angelini Ventures and Invivo Partners |
| Biotechnology | 15 Jan 2025 | $15M | not disclosed | not named |
| Biotechnology | 9 Jan 2025 | $15M | not disclosed | SPRIM Global Investments and William Taylor Nominees |
Sources
Where this comes from
Reported by 3 sources. The deal data marks this round as not yet confirmed by an official announcement. Unconfirmed
Questions
Frequently asked
How much did Retro Bio raise in its Series A round?
Retro Bio raised $1.00B in its Series A round, announced in Jan 2025.
Which investors took part in Retro Bio's Series A round?
OpenAI and Sam Altman.
What was Retro Bio's valuation at the Series A round?
$5.00B post-money ($4.00B pre-money).
How does it compare with other Series A rounds in Biotechnology?
163 Series A rounds in Biotechnology within a year either side disclosed an amount; the median was $30M, and this round was 33 times the median.