# Deerfield Partners: portfolio, investments and team > Deerfield Partners is a vc firm based in United States. 4 investments on record, latest Nov 2013. Portfolio, stages, co-investors and team. Source: https://millionrounds.com/fund/deerfield-partners (Millionrounds; every figure on the page links to its filing or article) United States · [Investor](https://millionrounds.com/investors) # Deerfield Partners Filed with the SEC to raise a fund in Feb 2026, closing $5,131M. Last cheque observed Nov 2013. Quiet New fund $5.1B, Feb 2026 VC firm Growth Nanotechnology Printing Cheques on record **0%** of best year **0** **cheques in 12 months**, 4 on record Since the last cheque **4737** days **00** hrs **00** min **00** sec Median round **$44M** Rounds led **0 of 4** Exits **2 from the portfolio** Pitch Deerfield Partners ## Deerfield Partners highlights - 01 4 rounds on record - 02 Mostly Series C and Series D: 75% of its rounds - 03 2 exits from the portfolio ## What they do - **Type:** VC firm (from a list, unverified) - **Cheque size:** Not stated - **Stages:** Growth - **Sectors:** Nanotechnology Printing - **Based in:** United States - **Cold pitches:** Not stated ## The record Every round we can evidence, newest first **4 appearances** - **2013** 2 rounds - **Nov** **[Ocera Therapeutics](https://millionrounds.com/company/ocera-therapeutics)** Venture · US · fiercebiotech.com **$28M** With 7 others - **Jul** **[Dicerna Pharmaceuticals](https://millionrounds.com/company/dicerna-pharmaceuticals)** Series C · US · finsmes.com **$60M** With 8 others - **2012** 1 round - **Jul** **[bluebird bio](https://millionrounds.com/company/bluebird-bio)** Series D · US · in.finance.yahoo.com **$60M** With 6 others - **2008** 1 round - **Nov** **[Tengion](https://millionrounds.com/company/tengion)** Series C · US **$21M** With 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 registration **1 named** JF **James Flynn** Sole manager i Filing 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 listed **2 in all** **[bluebird bio](https://millionrounds.com/company/bluebird-bio)** Listed **$101M** Jun 2013 **[Tengion](https://millionrounds.com/company/tengion)** Listed **Undisclosed** Apr 2010 An exit counts when it came after the firm's first round in the company. From historical deal records. New fund on file **$5.1B** raised in Feb 2026 From its SEC filing, not a journalist: a firm that has just raised has money to deploy. ## The cheque Growth Median round joined **$44M** the round, not its cheque Led 0 of 4 rounds **0%** - **Sole investor:** Never alone - **Last cheque:** Nov 2013 - **Exits:** 2 from the portfolio Rounds by stage said on their site - Series C *2* - Series D *1* - Venture *1* - Growth said *-* Cheques by year Led Joined 2008 2013 Often in the room with - [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) 3 **Pitching Deerfield Partners?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque. Add to your CRM *→* ## 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 Management** Private equity **3** rounds together](https://millionrounds.com/fund/ra-capital-management) ## 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](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=deerfield-partners) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=deerfield-partners)