United States · Investor

Deerfield Partners

Filed with the SEC to raise a fund in Feb 2026, closing $5,131M. Last cheque observed Nov 2013.

QuietNew fund $5.1B, Feb 2026VC firm

GrowthNanotechnologyPrinting

Cheques on record
0%of best year0cheques in 12 months, 4 on record
Since the last cheque4737days00hrs00min00sec
Median round$44MRounds led0 of 4Exits2 from the portfolio
Pitch Deerfield Partners

Deerfield Partners highlights

  1. 01

    4 rounds on record

  2. 02

    Mostly Series C and Series D: 75% of its rounds

  3. 03

    2 exits from the portfolio

What they do

Type
VC firm (from a list, unverified)
Cheque size
Not stated
Stages
Growth
Sectors
NanotechnologyPrinting
Based in
United States
Cold pitches
Not stated

The record

Every round we can evidence, newest first4 appearances

  1. 2013

    2 rounds

  2. Nov
    Ocera TherapeuticsVenture · US · fiercebiotech.com$28MWith 7 others
  3. Jul
    Dicerna PharmaceuticalsSeries C · US · finsmes.com$60MWith 8 others
  4. 2012

    1 round

  5. Jul
    bluebird bioSeries D · US · in.finance.yahoo.com$60MWith 6 others
  6. 2008

    1 round

  7. Nov
    TengionSeries C · US$21MWith 7 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

The team

Named by the firm itself, on a filing, its Form ADV or its company registration1 named

JFJames FlynnSole manageriFiling they signed

We also hold 1 person at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

Exits from the portfolio

Companies it backed that were later bought or listed2 in all

bluebird bioListed$101MJun 2013
TengionListedUndisclosedApr 2010

An exit counts when it came after the firm's first round in the company. From historical deal records.

Who they invest alongside

The investors most often in the same rounds as Deerfield Partners. A count of rooms they were both in, not a relationship either has claimed.

RA Capital ManagementPrivate equity3rounds together

Quick answers about Deerfield Partners

What does Deerfield Partners invest in?

Deerfield Partners invests most often at Series C and Series D (75% of the rounds on record), in sectors such as Nanotechnology and Printing.

How active is Deerfield Partners?

4 investments on record, 0 of them in the last 12 months. The most recent was in Nov 2013.

How big are Deerfield Partners's cheques?

The median round it joins is $44M.

Is Deerfield Partners investing now?

No investments in the last 12 months; the latest was in Nov 2013.

Who does Deerfield Partners invest alongside?

Most often RA Capital Management (3 rounds together).

What kind of investor is Deerfield Partners?

Deerfield Partners is a VC firm based in United States.

Has Deerfield Partners raised a new fund?

Its latest fund filing with the SEC was in Feb 2026, reporting $5.1B raised.

Where does this information on Deerfield Partners come from?

From 3 articles and filings naming it in a round, public registers and its own website, checked and rebuilt every night.

Raising now?

Find the investors who back rounds like yours, and keep every conversation on one fundraising board.

Find similar investorsOpen your CRM

Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it