Who invested in Alexza Pharmaceuticals

5 rounds we have observed, with the 7 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Pharma

Funding summaryUpdated 26 Oct 2026

$114Mraised across 5 rounds since 2002, from 5 sources

$45MSeries A$20MVenture$1.0MVenture$3.0MSeed$45MRound

Latest round: Round, $45MMar 2014
Step-upi: 15×
Investors: 7

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2002200420062008201020122014

$45MSeries A$20MVenture$1.0MVenture$3.0MSeed$45MRound

First round: Series A, $45M
Biggest round: $45M
Usual gap between rounds: 2 years

The rounds

Mar 2014
Round$45M
No investor was named in the report.
From a historical funding recordSEC filing: $3K sold, first sale Mar 2014
Mar 2012
Seed$3.0M
No investor was named in the report.
Reported by sec.govSEC filing: $3.0M sold, first sale Mar 2012
May 2010
Venture$1.0M
No investor was named in the report.
Reported by deals.venturebeat.comSEC filing: $1.0M sold, first sale May 2010
Oct 2009
Venture$20M
No investor was named in the report.
From a historical funding recordSEC filing: $20M sold, first sale Oct 2009
Sept 2002
Series A$45M7 new
From a historical funding record

Founders and team

From the SEC filings it signed: 2 on the team.

Edwin S KamemotoExecutive Officeri
Thomas B KingExecutive Officer, Directori

On the board, as filediDeepika R PakianathanGordon Leighton RingoldIsaac Leighton SteinJ Kevin BuchiJ Leighton ReadJoseph L Turner

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 A2002Venture2009Venture2010Seed2012Round2014

New Enterprise Associates

Versant VenturesAlloy Ventures

CMEA Ventures

Frazier Healthcare Partners

Burrill & CompanyZesiger Capital

Everyone who backed them

New Enterprise AssociatesVC firm1round

Versant VenturesVC firm1round

Alloy VenturesVC firm1round

CMEA VenturesVC firm1round

Frazier Healthcare PartnersPrivate equity1round

Burrill & CompanyVC firm1round

Zesiger CapitalVC firm1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about Alexza Pharmaceuticals

Who invested in Alexza Pharmaceuticals?

Alexza Pharmaceuticals's investors include New Enterprise Associates, Versant Ventures, Alloy Ventures, CMEA Ventures and Frazier Healthcare Partners, and 2 more on record.

How much has Alexza Pharmaceuticals raised?

Alexza Pharmaceuticals has raised $114M across 5 rounds since 2002.

When did Alexza Pharmaceuticals last raise?

Alexza Pharmaceuticals's most recent round was an Undisclosed round of $45M in Mar 2014.

What was Alexza Pharmaceuticals's biggest round?

Its most recent round, $45M in Mar 2014, is also its largest on record.

Who backed Alexza Pharmaceuticals first?

Alexza Pharmaceuticals's first round on record, in Sept 2002, was backed by New Enterprise Associates, Versant Ventures and Alloy Ventures and 4 others.