Find your path to Ryan
308 people in our graph share verified history with Ryan — schools, employers, funds. One of them is your warm intro.
Cyriac ParisotunlockedRyan: together at BlackRock (2016)
×7Ryan: together at BlackRock
×2Ryan: together at The Economic Club of New York
Ryan: together at Geneva Graduate Institute
About
Co-founder of Pennant, Ryan Nowicki Stewart previously spent over a decade in asset management, proxy voting, and shareholder activism at PJT, State Street, and BlackRock. He studied at Cornell University and was part of the Palantir Startup Fellowship's second cohort.
Founder at PennantYC S26
Intro paths
YC
Ryan went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran Pennant's batch and knows the company first-hand. YC profile ↗
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In turn, Ryan can intro founders to Pennant's investors below.
Pennant's investors · 1
Co-founders at Pennant
TT
Tomas TaylorFounder
Experience
- Pennant AICo-Founder, CEOcurrent2026 — presentNew York, New York, United States
- PJT PartnersVice President2024 — 2026New York
- State Street Investment ManagementAsset Stewardship2020 — 2024New York
- The Economic Club of New YorkFellow2023 — 2024New York, New York, United States
- The Council of Institutional InvestorsCorporate Governance Advisory Council2023 — 2024
- Cambridge Institute for Sustainability Leadership (CISL)Investment Leaders Working Group Member2022 — 2023Cambridge, England, United Kingdom
- BlackRockAssociate2018 — 2020Tokyo, London, New York
- BlackRockAnalyst2016 — 2018New York
- The Hoover Institution, Stanford UniversitySelected Scholar, National & Foreign Policy2017Stanford, California
Skills & more
Languages Japanese · Spanish
- FSA Credential — SASB Standards
- Alternative Investment Analyst Charter (CAIA Charter) Level 1 — CAIA Association
- Japanese Language Proficiency Test: Level 5 — The Japan Foundation
From Ryan's professional profile.
Frequently asked questions
- Who is Ryan Nowicki Stewart?
- Co-founder of Pennant, Ryan Nowicki Stewart previously spent over a decade in asset management, proxy voting, and shareholder activism at PJT, State Street, and BlackRock. He studied at Cornell University and was part of the Palantir Startup Fellowship's second cohort.
- Where does Ryan Nowicki Stewart work?
- Ryan Nowicki Stewart is Founder of Pennant.
- What companies did Ryan Nowicki Stewart found?
- Ryan Nowicki Stewart founded Pennant.
- Where did Ryan Nowicki Stewart go to school?
- Ryan Nowicki Stewart studied at Y Combinator (S26); Cornell University (Bachelor of Science (B.S.)); Geneva Graduate Institute (Summer Degree in International Affairs and Multilateral Governance).
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianPartnerFounded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Paradigm +1
+ 10,223 more
Cornell mafia535
Also came through, then founded or led a company.
John ZimmerBSFounded LyftDavid SteinbergBAFounded Restorbio +3Hanson S. Gifford, IIIBSMEFounded Miramar Labs +3Emin Gun SirerAssociate ProfessorFounded Ava Labs +3Uri LopatinBAFounded Assemblybio +2Aniq RahmanB.S.Founded Ucmdigitalhealth +2
+ 528 more
BlackRock mafia62
Also came through, then founded or led a company.
Bo LuManaging DirectorFounded FutureAdvisor +1Gus TrigosQuant, Quantitative Investment GroupFounded Runtime +1Shourya LalaSoftware EngineerFounded Third Chair +1Pauline RotetaSenior Investor & Portfolio Manager, BlackRock Infrastructure Investment GroupFounded Pasito +1Anand KannappanQuantitative AnalystFounded Kyber Technologies +1Vivian WangFinancial Markets Advisory AnalystFounded Landed +1
+ 55 more
Geneva Graduate Institute mafia4
Also came through, then founded or led a company.
Alliance High School mafia3
Also came through, then founded or led a company.
Same school
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyArhaan A.Deeptech Fellow at Clear VenturesCollin WallaceGeneral Partner at Lobby CapitalVictor SantosVictor Scout at One Way Ventures
+ 1,994 more
Also attended Cornell University1,410
Jenny LeeSenior Managing Partner at Granite AsiaNeeraj AgrawalGeneral Partner at Battery VenturesJohn ZimmerCo-founder of LyftMichelle FernandesInvestor at Index VenturesMike ZakInvestor at CRV (Charles River Ventures)Micah RosenbloomGeneral Partner at Founder Collective
+ 1,404 more
Also attended Geneva Graduate Institute19
Melissa DonohoeVice President at Notion CapitalAviral GoenkaSenior Associate, India at Jungle VenturesUlises CejaVenture Associate at Untapped VenturesIbrahim KöranHead of GovTech at Heliad AGAmir WeitmannCo-Founder, Managing Partner at Champel CapitalFabio SofiaCo-Founder and Managing Partner at Zebra Impact Ventures
+ 13 more
Also attended Alliance High School6
Shared employers
Also worked at Pennant AI1
Also worked at PJT Partners45
Alejandro de RemediosInvestment Associate at Burda Principal InvestmentsAnna WangAssociate at March Capital PartnersSudeep JandyamPrincipal at TCVRob NeedhamInvestor at Riverwood CapitalAngel DuanAssociate at DFJLouis DessalSenior Associate at Partech Ventures
+ 39 more
Also worked at State Street Investment Management11
Ben TisdaleHead of Capital Formation and Investor Relations at Hivemind Capital PartnersMorgan SheilChief Climate Officer at World FundDylan HerschfieldInvestor at M33 GrowthDavid LaVallePresident of CoinDesk Data & Indices at BullishRick BunkerChief Technology and Product Officer at InveniamNoel ArchardManaging Director and Global Head of Product Solutions & Marketing at AllianceBernstein
+ 5 more
Also worked at The Economic Club of New York16
Nicholas AdamsManaging Partner at Differential VenturesDavid BorcsokPartner at Mucker CapitalPete MathiasFounder at Reveille VCThomas Walton-CaleManaging Director at Multiplier CapitalDaniel CorbettPrincipal at Heartland VenturesChristopher PerkinsManaging Partner and President at CoinFund
+ 10 more