Where did Tim Clackson go to school?

Tim Clackson studied at University of Cambridge (PhD, Biology); University of Oxford (BA Hons., Biochemistry).

Tim Clackson

Executive at IDRx

Cambridge, Massachusetts, United States

Find your path to Tim

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

Dan LynchunlockedTim: together at Xilio Therapeutics (2020–2021)

×2Tim: together at University of Cambridge

×2Tim: together at University of Oxford

Tim: together at Xilio Therapeutics

About

A biotech executive whose leadership roles include President and CEO of Theseus Pharmaceuticals and President and Chief Technology Officer at Xilio Therapeutics. He has served on the boards of Elevation Oncology, Forma Therapeutics, MassBio, Kesmalea Therapeutics, and PanTher Therapeutics.

Executive at IDRx

Intro paths

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In turn, Tim can intro founders to IDRx's investors below.

IDRx's investors · 3

Andreessen HorowitzMenlo Park · $500K – $50M checks Nextech InvestZurich · $648K – $3.2M checks RA CapitalBoston

Experience

PanTher TherapeuticsBoard Member and Advisorcurrent2026 — present
Kesmalea TherapeuticsBoard Membercurrent2025 — presentLondon, UK
Elevation OncologyBoard Member2020 — 2025New York, NY / virtual
IDRxPresident and CEO2024 — 2025Cambridge, MA / virtual
Theseus PharmaceuticalsPresident and CEO2021 — 2023Cambridge, MA
MassBioBoard Member2015 — 2023Cambridge, MA
Forma TherapeuticsBoard Member2018 — 2022Watertown, MA
Xilio Therapeutics, Inc.President and CTO2020 — 2021Cambridge, MA
Xilio Therapeutics, Inc.President, and EVP of R&D2018 — 2020Cambridge, MA
Spring Bank PharmaceuticalsBoard Member2018 — 2020Hopkinton, MA
ARIAD Pharmaceuticals, Inc.President of R&D, Chief Scientific Officer2010 — 2017Cambridge, MA
ARIAD Pharmaceuticals, Inc.Chief Scientific Officer2003 — 2010Cambridge, MA
ARIAD Pharmaceuticals, Inc.VP/SVP, Science and Technology2000 — 2003Cambridge, MA
ARIAD Pharmaceuticals, Inc.Research Scientist, Group Leader, Director1994 — 2000Cambridge, MA
GenentechPostdoctoral Fellow1991 — 1994South San Francisco, CA

Frequently asked questions

Who is Tim Clackson?: A biotech executive whose leadership roles include President and CEO of Theseus Pharmaceuticals and President and Chief Technology Officer at Xilio Therapeutics. He has served on the boards of Elevation Oncology, Forma Therapeutics, MassBio, Kesmalea Therapeutics, and PanTher Therapeutics.
Where did Tim Clackson go to school?: Tim Clackson studied at University of Cambridge (PhD, Biology); University of Oxford (BA Hons., Biochemistry).

Founder mafias

University of Oxford mafia622

Also came through, then founded or led a company.

Reid HoffmanM.St.Founded LinkedIn +2 Gabriel PereyraDropped outFounded Harvey Brent HobermanMaster of Arts - MAFounded Founders Pledge +4 Kevin HartzMstFounded Eventbrite +3 William GuttmanM.PhilFounded CurvePoint +3 Tom BlomfieldMaster's DegreeFounded Starling Bank +2

+ 615 more

University of Cambridge mafia589

Also came through, then founded or led a company.

Stewart ButterfieldMPhilFounded Flickr +1 Demis HassabisBAFounded Google Deepmind +2 C. Giovanni TraversoMBFounded Teal Bio +4 Immad AkhundMaster of Arts (M.A.)Founded Mercury Technologies, Inc. +3 Inaki BerenguerMasterFounded InfiniteWatch +2 Harish AgarwalMaster of Philosophy - MPhilFounded Nori +2

+ 582 more

Xilio Therapeutics mafia3

Also came through, then founded or led a company.

Nessan BerminghamExec ChairFounded Korro Bio +2 Rachel HumphreyIndependent Board DirectorFounded Normunity

Same school

Also attended University of Cambridge1,600

Stewart ButterfieldCo-founder of Slack and Flickr Demis HassabisCo-founder & CEO of Google DeepMind Niko BonatsosFounder and Managing Partner of Verdict Georgia StevensonInvestor at Index Ventures Hannah SealInvestor at Index Ventures Leah von SiemensPartner at Manta Ray Ventures

+ 1,594 more

Also attended University of Oxford1,763

Reid HoffmanCo-founder of LinkedIn; Partner at Greylock Michael MoritzFormer Partner at Sequoia Capital; Senior Adviser at Sequoia Heritage Gabriel PereyraCo-founder & President of Harvey Dominic JacquessonInvestor at Index Ventures Erin Price-WrightInvestor at Index Ventures Jan HammerInvestor at Index Ventures

+ 1,757 more

Shared employers

Also worked at PanTher Therapeutics2

Manish BhandariManaging Partner at Angel Physicians Fund Laura IndolfiChief Executive Officer and Co-Founder at PanTher Therapeutics

Also worked at MassBio15

Christopher de SouzaDirector at Broadview Ventures Glenn BatchelderVenture Partner at Pivotal Life Sciences Martin HeideckerCIO at AMR Action Fund Chandra RamanathanAdvisor, Biotech at Iaso Ventures Janice BourqueManaging Director of Life Sciences, Hercules Capital at Foreground Capital Rakhshita DharInvestor at Leaps by Bayer

+ 9 more

Also worked at Forma Therapeutics6

Steve TregayManaging General Partner at Mission Biocapital Joey AzofeifaFounder at Arpeggio Bio Michael FoleyCEO at Excelsior Sciences Cameron TrenorChief Medical Officer at AN2 Therapeutics David N. CookChief Executive Officer at Edgewood Oncology, Inc.Jane RhodesChief Executive Officer at 0 2 AstronauTx

Also worked at Xilio Therapeutics, Inc.8

Dan LynchInvestor at GV (Google Ventures)Nessan BerminghamInvestor at Khosla Ventures Alex Badamchi-ZadehVice President at SV Health Investors Keno GutierrezGeneral Partner at BioGeneration Ventures Peter DudekPresident at MRL Ventures Fund Ugur EskiocakFounder / EIR at 82VS

+ 2 more