Third Rock Ventures Investments & Fund Profile

Overview

Invests in transformational life science companies with high growth potenti

Founded

2007

Deals · 12mo

4

Links

Website LinkedIn

Stage focus

Series A

Series B

Geographic focus

United States

Sector focus

Biotechnology

Health Care

Medical Device

Investment portfolio

125rounds

LedParticipated

NAME	DATE	SIZE
Flare Therapeutics	Jun 2026Led	$85 MSeries C
Terremoto Biosciences	Apr 2026Participated	$108 MSeries C
Syremis Therapeutics	Dec 2025Led	$165 MSeries A
Azalea Therapeutics	Nov 2025Led	$65 MSeries A
ARTBIO	Jul 2025Participated	$132 MSeries B
Merida Biosciences	Apr 2025Led	$121 MSeries A
Trace Neuroscience	Nov 2024Led	$101 MSeries A
Seaport Therapeutics	Oct 2024Participated	$225 MSeries B
Candid Therapeutics	Sep 2024Participated	$370 MOther Equity
Marea Therapeutics	Jun 2024Led	$190 MSeries A
Asher Bio	Apr 2024Participated	$55 MSeries C
Seaport Therapeutics	Apr 2024Participated	$100 MSeries A
Flare Therapeutics	Jun 2026Led	$85 MSeries C
Terremoto Biosciences	Apr 2026Participated	$108 MSeries C
Syremis Therapeutics	Dec 2025Led	$165 MSeries A
Azalea Therapeutics	Nov 2025Led	$65 MSeries A
ARTBIO	Jul 2025Participated	$132 MSeries B
Merida Biosciences	Apr 2025Led	$121 MSeries A
Trace Neuroscience	Nov 2024Led	$101 MSeries A
Seaport Therapeutics	Oct 2024Participated	$225 MSeries B
Candid Therapeutics	Sep 2024Participated	$370 MOther Equity
Marea Therapeutics	Jun 2024Led	$190 MSeries A
Asher Bio	Apr 2024Participated	$55 MSeries C
Seaport Therapeutics	Apr 2024Participated	$100 MSeries A

125 Items

125

Items

...

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Deal Distribution

Third Rock Ventures: 125 funding rounds are recorded in the selected participation categories. All available history
Round type	Led deals	Participated deals
Seed	0	1
Series A	47	11
Series B	7	28
Series C+	3	17
Other Equity	1	9
Debt	0	1

Monthly Deal Activity

Third Rock Ventures: 125 deals are recorded across 203 months. All available history
Month	Deals
Dec '09	1
Jan '10	1
Feb '10	1
Mar '10	0
Apr '10	0
May '10	0
Jun '10	2
Jul '10	0
Aug '10	0
Sep '10	2
Oct '10	1
Nov '10	0
Dec '10	0
Jan '11	1
Feb '11	0
Mar '11	0
Apr '11	3
May '11	1
Jun '11	2
Jul '11	1
Aug '11	0
Sep '11	0
Oct '11	3
Nov '11	2
Dec '11	1
Jan '12	1
Feb '12	0
Mar '12	1
Apr '12	1
May '12	1
Jun '12	3
Jul '12	2
Aug '12	0
Sep '12	1
Oct '12	1
Nov '12	1
Dec '12	1
Jan '13	0
Feb '13	2
Mar '13	1
Apr '13	1
May '13	0
Jun '13	0
Jul '13	2
Aug '13	0
Sep '13	0
Oct '13	1
Nov '13	1
Dec '13	0
Jan '14	2
Feb '14	1
Mar '14	2
Apr '14	2
May '14	1
Jun '14	0
Jul '14	1
Aug '14	0
Sep '14	0
Oct '14	0
Nov '14	1
Dec '14	1
Jan '15	1
Feb '15	1
Mar '15	0
Apr '15	0
May '15	0
Jun '15	0
Jul '15	0
Aug '15	2
Sep '15	0
Oct '15	2
Nov '15	0
Dec '15	0
Jan '16	0
Feb '16	1
Mar '16	0
Apr '16	0
May '16	0
Jun '16	1
Jul '16	1
Aug '16	0
Sep '16	1
Oct '16	0
Nov '16	1
Dec '16	2
Jan '17	1
Feb '17	1
Mar '17	1
Apr '17	0
May '17	0
Jun '17	0
Jul '17	0
Aug '17	0
Sep '17	0
Oct '17	1
Nov '17	0
Dec '17	1
Jan '18	0
Feb '18	0
Mar '18	1
Apr '18	3
May '18	2
Jun '18	1
Jul '18	0
Aug '18	1
Sep '18	0
Oct '18	0
Nov '18	0
Dec '18	0
Jan '19	0
Feb '19	1
Mar '19	0
Apr '19	0
May '19	1
Jun '19	0
Jul '19	1
Aug '19	0
Sep '19	0
Oct '19	0
Nov '19	0
Dec '19	0
Jan '20	0
Feb '20	0
Mar '20	2
Apr '20	0
May '20	1
Jun '20	0
Jul '20	0
Aug '20	0
Sep '20	1
Oct '20	1
Nov '20	1
Dec '20	1
Jan '21	0
Feb '21	0
Mar '21	2
Apr '21	0
May '21	1
Jun '21	1
Jul '21	0
Aug '21	0
Sep '21	1
Oct '21	1
Nov '21	0
Dec '21	1
Jan '22	2
Feb '22	0
Mar '22	1
Apr '22	0
May '22	2
Jun '22	1
Jul '22	0
Aug '22	0
Sep '22	0
Oct '22	0
Nov '22	1
Dec '22	0
Jan '23	0
Feb '23	0
Mar '23	3
Apr '23	0
May '23	0
Jun '23	0
Jul '23	1
Aug '23	1
Sep '23	0
Oct '23	0
Nov '23	1
Dec '23	1
Jan '24	1
Feb '24	0
Mar '24	1
Apr '24	2
May '24	0
Jun '24	1
Jul '24	0
Aug '24	0
Sep '24	1
Oct '24	1
Nov '24	1
Dec '24	0
Jan '25	0
Feb '25	0
Mar '25	0
Apr '25	1
May '25	0
Jun '25	0
Jul '25	1
Aug '25	0
Sep '25	0
Oct '25	0
Nov '25	1
Dec '25	1
Jan '26	0
Feb '26	0
Mar '26	0
Apr '26	1
May '26	0
Jun '26	1
Jul '26	0
Aug '26	0
Sep '26	0
Oct '26	0

Sector Breakdown

A deal can appear in multiple sectors, so sector totals may overlap. Capital represents disclosed total round sizes, not fund cheque sizes.

Third Rock Ventures: Health & Life Sciences is the largest displayed sector by deal count (125 deals). All available history
Sector	Deals
Health & Life Sciences	125
Space & Frontier Tech	10
AI & Machine Learning	2
Consumer & Lifestyle	2
Networks, Cloud & Communication	1
Hardware & Robotics	1
Clean Energy & Sustainability	1
Professional Services	1

Deal Size Distribution

Undisclosed round sizes are excluded. Capital represents total round sizes, not fund cheque sizes.

Third Rock Ventures: 125 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)	Deals
<$5M	1
$5M-$10M	3
$10M-$25M	20
$25M-$50M	38
$50M-$100M	33
$100M-$250M	28
$250M-$500M	2
$500M-$1B	0
$1B+	0

Deals By Geography

Top 2 of 2 regions; European countries are grouped as Europe.

Third Rock Ventures: United States has the largest recorded deal count among the displayed regions (124 deals). All available history
Region	Deals
United States	124
Israel	1

Co-Investors

Bubble size = shared deals

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Shows up to 20 co-investors ranked by shared deals. Deals may be shared with multiple funds, so rows overlap. Capital is total round size, not fund cheque size.

Third Rock Ventures: 20 co-investors are shown, with Casdin Capital sharing 23 recorded deals. All available history
Co-investor	Shared deals
Casdin Capital	23
Google Ventures	15
Invus	13
Alexandria Venture Investments	12
ARCH Venture Partners	12
The Column Group	12
OrbiMed	11
Boxer Capital	10
Foresite Capital	10
Nextech Invest	9
RA Capital Management	9
Flagship Ventures	8
Polaris Partners	8
BVF Partners	7
Cormorant Asset Management	7
Pfizer Ventures	7
Wellington Management	7
Bessemer Venture Partners	6
Deerfield Management	6
Frazier Healthcare Partners	6