Where does Ulrik B. Nielsen work?

Ulrik B. Nielsen is General Partner at Mission Biocapital and Board director at Alloy Therapeutics, Inc..

What check size does Ulrik B. Nielsen write?

Ulrik B. Nielsen typically writes checks of $500K.

What boards does Ulrik B. Nielsen sit on?

Ulrik B. Nielsen holds tracked board seats at Alloy Therapeutics, Inc..

Where did Ulrik B. Nielsen go to school?

Ulrik B. Nielsen studied at Københavns Universitet - University of Copenhagen (Doctor of Philosophy (PhD), Molecular Biology); Harvard Business School.

Ulrik B. Nielsen

Investor

General Partner at Mission Biocapital · Board director at Alloy Therapeutics, Inc.

Cambridge

Writes $500K checks

Find your path to Ulrik

280 people in our graph share verified history with Ulrik — schools, employers, funds. One of them is your warm intro.

Noubar AfeyanunlockedUlrik: together at MIT (2000–2002)

Ulrik: together at Københavns Universitet - University of Copenhagen

×8Ulrik: together at Mission Biocapital

×2Ulrik: together at Alloy Therapeutics, Inc.

About

Ulrik B. Nielsen is an oncology therapeutics founder-turned-investor who led Merrimack to IPO and FDA approval, led Torque and Tidal (acquired by Sanofi), and pioneered in vivo mRNA T‑cell reprogramming.

Invests in

AgTechBiotechFoodTechHealthtechMedical DevicesNew Materials

Board director at Alloy Therapeutics, Inc.

Intro paths

→

In turn, Ulrik can intro founders to Alloy Therapeutics, Inc.'s investors below.

Alloy Therapeutics, Inc.'s investors · 5

82VSBoston 8VCAustin · $100K – $50M checks · since 2026 JIC Venture Growth InvestmentsTokyo MC Healthcare VenturesCambridge · since 2026 Mission BiocapitalSan Francisco · $500K checks · since 2026

Co-founders at Alloy Therapeutics, Inc.

Errik B. AndersonExecutive Officer, Director

Experience

Mission BioCapitalGeneral Partnercurrent2025 — present
TROYA TherapeuticsCo-Founder and Executive Chairmancurrent2024 — present
Volnay TherapeuticsCo-founder and Chairmancurrent2023 — presentCambridge, Massachusetts, United States
UNIKUM TherapeuticsCo-founder and Chairmancurrent2020 — presentCopenhagen, Capital Region of Denmark, Denmark
Alloy Therapeutics, LLCMember Board Of Directorscurrent2019 — present
Notch TherapeuticsChairman Of The Board2018 — 2025
Notch TherapeuticsExecutive Chairman2018 — 2020Greater Toronto Area, Canada
Merrimack PharmaceuticalsMember Board of Directors2015 — 2024
Merrimack PharmaceuticalsCo-founder and Chief Scientific Officer2002 — 2015Cambridge, MA
Tidal TherapeuticsPresident and CEO, Tidal Therapeutics (a Sanofi company)2019 — 2023Cambridge, MA
Torque (now Repertoire Immune Medicines)Founder Chairman and President2017 — 2018Cambridge, MA
Torque (now Repertoire Immune Medicines)Founder, President and CEO2015 — 2017Cambridge, MA
Silver Creek Pharmaceuticals, Inc.CEO2010 — 2014Mission Bay, San Francisco
MITPostdoc2000 — 2002
University of California, San FranciscoPostgraduate Researcher1996 — 2000

Skills & more

Cell8Oncology8Drug Discovery18Biotechnology23Lifesciences3Molecular Biology8Drug Development7Cell Biology31Biochemistry5Immunology3Cell Culture2Cancer29

+6 more

Clinical DevelopmentProtein ChemistryComputational BiologyAntibodiesLife SciencesAssay Development

Languages Danish · English

From Ulrik's professional profile.

Deals · 1

Alloy Therapeutics, Inc.Board seat

via Mission Biocapital · filed Apr 2026 · $40M raise

Attribution from SEC filings, press coverage, and firm rosters.

Colleagues at Mission Biocapital

Cassidy Blundell

Partner at Mission Biocapital

Chaya Patel

Principal at Mission Biocapital

Chris Carlin

Chief Operations Officer and Chief Compliance Officer at Mission Biocapital

Clay Rowland

Investment Associate at Mission Biocapital

Douglas Crawford

Managing General Partner at Mission Biocapital

Jennifer Griffin

Partner at Mission Biocapital

Johannes Fruehauf

General Partner at Mission Biocapital

Josephine Brysting

Investment Analyst at Mission Biocapital

Frequently asked questions

Who is Ulrik B. Nielsen?: Ulrik B. Nielsen is an oncology therapeutics founder-turned-investor who led Merrimack to IPO and FDA approval, led Torque and Tidal (acquired by Sanofi), and pioneered in vivo mRNA T‑cell reprogramming.
Where does Ulrik B. Nielsen work?: Ulrik B. Nielsen is General Partner at Mission Biocapital and Board director at Alloy Therapeutics, Inc..
What does Ulrik B. Nielsen invest in?: Ulrik B. Nielsen invests in AgTech, Biotech, FoodTech, Healthtech, Medical Devices, New Materials.
What check size does Ulrik B. Nielsen write?: Ulrik B. Nielsen typically writes checks of $500K.
What boards does Ulrik B. Nielsen sit on?: Ulrik B. Nielsen holds tracked board seats at Alloy Therapeutics, Inc..
Where did Ulrik B. Nielsen go to school?: Ulrik B. Nielsen studied at Københavns Universitet - University of Copenhagen (Doctor of Philosophy (PhD), Molecular Biology); Harvard Business School.

Founder mafias

Harvard Business School mafia892

Also came through, then founded or led a company.

Tim DraperMBAFounded Draper Associates Mike Maples JrMBAFounded Pattern Breakers Hristo BorisovOPM Class 64Founded Payhawk Noubar AfeyanVisiting LecturerFounded ProFound Therapeutics +13 Wade MyersMBAFounded RealManage +6 Wade MyersMBAFounded RealManage +6

+ 885 more

Københavns Universitet - University of Copenhagen mafia67

Also came through, then founded or led a company.

David HelgasonPhysicsFounded Unity Software Gerry Giacomán ColyerEuropean Politics & SocietyFounded Clara +1 Emil MunkData ScienceFounded Balance +1 Christian LanngMasterFounded Beyond Work Holdings +1 Mikkel PrechtKandidatgradFounded Ada Ventures +1 Mads Emil MatthiesenMaster of Science (M.Sc.)Founded Antag Therapeutics +1

+ 60 more

Alloy Therapeutics, Inc. mafia4

Also came through, then founded or led a company.

Errik AndersonExecutive Officer, DirectorFounded Cantai Therapeutics +4 Jesse RobbinsAngel InvestorFounded Chef +1 Alex KolicichDirectorFounded 8Vc

Mission Biocapital mafia2

Also came through, then founded or led a company.

Zach CollinsPartnerFounded Cavalry Biosciences

Same school

Also attended Københavns Universitet - University of Copenhagen180

David HelgasonUnity co-founder; Partner at Transition Jesper GromadaInvestor at Third Rock Ventures Tommy AhlersFormer Danish Science Minister at Giant Ventures Global Llp Taro HizumeGeneral Partner at Ff Venture Capital Claus AnderssonGeneral Partner at Sunstone Capital Sten VerlandVenture Partner at Sunstone Capital

+ 174 more

Also attended Harvard Business School2,000

Brad GerstnerFounder & CEO of Altimeter Capital Aileen LeeFounder & Managing Partner of Cowboy Ventures Jim BreyerFounder & CEO of Breyer Capital Tim DraperFounder of Draper Associates Mike Maples JrCo-founding Partner at Floodgate Mamoon HamidPartner at Kleiner Perkins

+ 1,994 more

Shared employers

Also worked at Volnay Therapeutics1

Johannes FruehaufGeneral Partner at Mission Biocapital

Also worked at Alloy Therapeutics, LLC21

Jesse RobbinsFounder and Investor in AI Developer Tools Chaya PatelPrincipal at Mission Biocapital Errik AndersonBoard Director at Basecamp Fund Alasdair ThongFounding Partner at Selvedge Venture Esra BerkolChief of Staff at Selvedge Venture Mike SchmidtGeneral Partner, President and Head of 82VS Boston at 82VS

+ 15 more

Also worked at Merrimack Pharmaceuticals3

Michael LeeManaging Director at Syngenta Group Ventures Thomas NeedhamDirector, Head of the Biopharma Practice at Broadview Ventures Hewmun LauPrincipal at Broadview Ventures

Also worked at MIT764

Aileen LeeFounder & Managing Partner of Cowboy Ventures Matt HuangCo-founder and Managing Partner at Paradigm Michael TruellCo-founder & CEO of Cursor Raquel UrtasunFounder & CEO of Waabi Colin WebbFounder & CEO of Avatar Robotics Abraham BachrachCo-founder & CTO of Skydio

+ 758 more