Stella Paffenholz

Experience

1. Atlas VentureSenior Associatecurrent2026 — present
2. Multiple Myeloma Research Foundation - MMRFIndependent Investment Committee Membercurrent2026 — present
3. Memorial Sloan Kettering Cancer CenterEntrepreneur in Residence & Advisorcurrent2025 — present
4. NucleateAdvisorcurrent2023 — present
5. Sesame TherapeuticsBoard Observer2025 — 2026
6. Nextech InvestPrincipal2025 — 2026Boston, Massachusetts, United States
7. Nextech InvestAssociate2023 — 2025Boston, Massachusetts, United States
8. Nextech InvestVenture Fellow (full-time)2022 — 2023Boston, Massachusetts, United States
9. Be BiopharmaBoard Observer2025 — 2026
10. Flare TherapeuticsBoard Observer2024 — 2026
11. Tubulis GmbHBoard Observer2024 — 2026
12. Delphia TherapeuticsBoard Observer2023 — 2026Boston, Massachusetts, United States
13. Mariana OncologyBoard Observer2023 — 2024
14. Homeward Bound ProjectsHomeward Bound Team HB72022 — 2023
15. Included VCVenture Capital Fellow (Class '22)2022
16. Apollo Health VenturesVenture Developer2022
17. Memorial Sloan Kettering Cancer CenterPh.D. Student2017 — 2022New York City Metropolitan Area
18. Memorial Sloan Kettering Cancer CenterGraduate Teaching Assistant2019 — 2020
19. Memorial Sloan Kettering Cancer CenterCo-Chair GSK Women in Science2017 — 2019
20. Tri-Institutional Biotech ClubPresident2021 — 2022New York, United States

Education

1. Gerstner Sloan Kettering Graduate School of Biomedical Sciences at Memorial Sloan Kettering Cancer CenterDoctor of Philosophy - PhD, Cancer Biology2016 — 2022
2. Weill Cornell Graduate School of Medical SciencesDrug Development Course - From Molecule to Prescription2019
3. Cold Spring Harbor LaboratoryProgramming for Biology2018
4. European Bioinformatics Institute | EMBL-EBICancer Genomics2018
5. Heidelberg UniversityMaster of Science (M.Sc.), Molecular Biosciences - Cancer Biology2013 — 2015
6. The University of BonnBachelor of Science (B.Sc.), Molecular Biomedicine2010 — 2013
7. Hochschule für Musik & Tanz KölnApprenticeship, Church Music2006 — 2008
8. Franken-Gymnasium ZülpichBi-lingual Abitur2001 — 2010
9. Kenmore West Senior High SchoolHigh school exchange program2009

Skills & more

Languages Englisch · French · German · Latin

• VC University — VC University
• Included VC Fellowship (2022) — Included VC
• Beginner to Pro in Excel: Financial Modeling and Valuation — Udemy
• AI For Everyone — DeepLearning.AI
• Problem Solving with Excel — PwC
• Business Strategy Specialization — University of Virginia Darden School of Business
• Financial Markets (with Honors) — Coursera
• Introduction to Project Management — edX
• Business Concepts for Life Scientists — Science Communication Lab
• Responsible Conduct of Research — Memorial Sloan Kettering Cancer Center

From Stella's professional profile.

Same school

Also attended Weill Cornell Graduate School of Medical Sciences8

JYJulie YangInvestor at Third Rock VenturesTWTracy WilliamsInvestor at Third Rock VenturesSCSahil ChopraPrincipal at Vertex Ventures HCCLCarly LevineSenior Associate at AMR Action FundXLXinghuo LiSenior Associate at Frazier Life SciencesCGCristina GhenoiuPartner at Mubadala Capital

+ 2 more

Also attended Cold Spring Harbor Laboratory5

IPIan PeikonVenture Partner at Lux CapitalMGMichael GutbrodSenior Associate at Sante VenturesTVTim Van TreurenPrincipal of New Ventures at Bios PartnersCVCasper VroemenChief R&D Officer, Global at IFF at The Innovation SpaceXLXinhong LimManaging Director at Vickers Venture Partners

Also attended Heidelberg University32

MSMojca SkoberneEntrepreneur in Residence at GV (Google Ventures)KYKeita Yazakiシニア・アソシエイト (Senior Associate) at CyberAgent CapitalKTKeith TanHead of DeFi at CaladanSFSteffen FunckInvestment Director at Statkraft VenturesRMRainer MetzgerPartner at fundamenta Life ScienceHKHelmut KlawitterGeneral Partner, General Counsel at TEV Ventures

+ 26 more

Also attended The University of Bonn20

MUMiriam UeberallTuring Labs AI; Ex-R&D at Flora Food Group, Kraft Heinz, Unilever at PeakBridge VCLSLennart SchlegelManager Investor Relations at FoodLabsCWChristophe WagnerInterim CFO at FoodLabsDVDaniel ValenzuelaVenture Partner at World FundFDFriedrich DrosteManaging Partner at Simon CapitalMBMichael BrandkampManaging Partner at European Circular Bioeconomy Fund

+ 14 more

Shared employers

Also worked at Multiple Myeloma Research Foundation - MMRF1

LTLori Tauber MarcusFormer CMO, Peloton & Keurig Green Mountain at The 98

Also worked at Nextech Invest6

TSThilo SchroederManaging Partner at Nextech InvestRSRocco SgobboManaging Partner, COO at Nextech InvestNBNiresh BerinpanathanPrincipal at Nextech InvestJLJakob LovenPartner at Nextech InvestASAlfred ScheideggerManaging Partner at Nextech InvestGVGretchen van SteenwykAnalyst at Nextech Invest

Also worked at Delphia Therapeutics1

SMSeiji MiyaharaSenior Investment Director at Taiho Ventures, LLC

Also worked at McKinsey & Company1,127

JBJim BreyerFounder & CEO of Breyer CapitalAMAnn Miura-KoCo-founding Partner at FloodgateJLJeremy LiewPartner at Lightspeed Venture PartnersMSMike SpeiserManaging Director at Sutter Hill VenturesJLJeremy LevinePartner at Bessemer Venture PartnersFGFabrice GrindaCo-founder & Managing Partner at FJ Labs

+ 1,121 more