United States · 
Who invested in BTB Therapeutics?
BTB Therapeutics's investors include SMBC Venture Capital and Kyoto University Innovation Capital Co., Ltd.
2026
$3.4MVenture$8.9MRound
United States · Venture startup
Who invested in BTB Therapeutics
Funding summaryUpdated 26 Oct 2026
$12Mraised across 2 rounds since 2025, from 2 sources
$3.4MVenture$8.9MRound
- Latest round
- Round, $8.9MAug 2026
- Step-upi
- 2.6×
- Investors
- 2
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Venture, $3.4M Nov 2025
- Biggest round
- $8.9M Round · Aug 2026
- Between rounds
- 9 months from the last two
The rounds
- Aug 2026Round$8.9M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $8.9M sold, first sale Aug 2026
- Nov 2025Venture$3.4M2 new
Source recordedSEC filing: $3.4M sold, first sale Nov 2025
Founders and team
From BTB Therapeutics's own website: 1 on the team.
- Takashi KiyoizumiBTB Therapeutics GK CEO
AdvisersAkihisa MoriKenneth W. LockeMariano A. Garcia-BlancoSilvio GutkindThomas Forest Farb-Horch
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about BTB Therapeutics
How much has BTB Therapeutics raised?
BTB Therapeutics has raised $12M across 2 rounds since 2025.
When did BTB Therapeutics last raise?
BTB Therapeutics's most recent round, $8.9M, was in Aug 2026.
What was BTB Therapeutics's biggest round?
Its most recent round, $8.9M in Aug 2026, is also its largest on record.
Who backed BTB Therapeutics first?
BTB Therapeutics's first round on record, in Nov 2025, was backed by SMBC Venture Capital and Kyoto University Innovation Capital Co., Ltd.
What stage is BTB Therapeutics at?
BTB Therapeutics's latest named round is a Venture, in Nov 2025.
Where is BTB Therapeutics based?
BTB Therapeutics is based in the United States.
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