United States · Who invested in Ambrx?
Ambrx's investors include Versant Ventures, 5AM Ventures, CMEA Ventures, Maverick Capital and Aravis Ventures, and 4 more on record.
20092010201120122013201420152016
$10MSeries D$45MRound
United States · Funded startup
Who invested in Ambrx
Funding summaryUpdated 26 Oct 2026
$55Mraised across 2 rounds since 2009, from 2 sources
$10MSeries D$45MRound
- Latest round
- Round, $45MAug 2016
- Step-upi
- 4.5×
- Investors
- 9
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series D, $10M Apr 2009
- Biggest round
- $45M Round · Aug 2016
- Between rounds
- 7.3 years from the last two
The rounds
- Aug 2016
- Apr 2009Series D$10M7 new
Versant Ventures
5AM Ventures
CMEA Ventures
Maverick Capital
Aravis Ventures
Tavistock Life Sciences- Merck Serono Ventures
Reported by onbiovc.comSEC filing: $10M sold, first sale Mar 2009
Founders and team
From the SEC filings it signed: 6 on the team.
- Crispina CalsadaExecutive Officeri
- Douglas W. AxelrodExecutive Officeri
- Ho Sung ChoExecutive Officeri
- John W. WallenExecutive Officeri
- Kevin L. EastwoodExecutive Officeri
- Stephen W. KaldorExecutive Officer, Directori
On the board, as filediAllan MarchingtonAugust M. WatanabeDavid B. SingerJohn D. DiekmanPeter G. SchultzRichard D. DiMarchiShehan Dissanayake
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.
Series D2009Round2016Versant Ventures5AM VenturesCMEA VenturesMaverick CapitalAravis VenturesTavistock Life SciencesMerck Serono VenturesApricot CapitalNortheast Securities Prosperity
Versant Ventures5AM VenturesCMEA VenturesMaverick CapitalAravis VenturesTavistock Life SciencesMerck Serono VenturesApricot CapitalNortheast Securities ProsperityEveryone who backed them
Merck Serono VenturesVC firm1round
Apricot CapitalPrivate equity1round
Northeast Securities Prosperityno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Ambrx
How much has Ambrx raised?
Ambrx has raised $55M across 2 rounds since 2009.
When did Ambrx last raise?
Ambrx's most recent round was an Undisclosed round of $45M in Aug 2016.
What was Ambrx's biggest round?
Its most recent round, $45M in Aug 2016, is also its largest on record.
Who backed Ambrx first?
Ambrx's first round on record, in Apr 2009, was backed by Versant Ventures, 5AM Ventures and CMEA Ventures and 4 others.
What stage is Ambrx at?
Ambrx's latest named round is an Undisclosed round, in Aug 2016.
Where is Ambrx based?
Ambrx is based in the United States.
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