Experience
- Third Rock VenturesManager, Fund Accountingcurrent2025 — present
- Third Rock VenturesSenior Finance Associate2023 — 2025
- Third Rock VenturesFinance Associate2021 — 2023
- HarbourVest PartnersSenior Private Equity Accountant2020 — 2021
- HarbourVest PartnersPrivate Equity Accountant2019 — 2020
- PwCExperienced Associate2017 — 2019
- Amphenol TCSFinancial Analyst2017Nashua, NH
Skills & more
Microsoft Excel6Microsoft Office1PowerPointMicrosoft Word1Teamwork3Financial Analysis1Research1Social Media1Public SpeakingEnglishHTMLAccounting5
- Certified Public Accountant — Massachusetts Board of Public Accountancy
From Greg's professional profile.
Colleagues at Third Rock Ventures
Abbie Celniker
Investor at Third Rock Ventures
Adam Tebbe
Investor at Third Rock Ventures
Alan Ezekowitz
Investor at Third Rock Ventures
Alison Connors
Investor at Third Rock Ventures
Amanda Chan
Investor at Third Rock Ventures
Andrea van Elsas
Investor at Third Rock Ventures
Angelo Severino
Investor at Third Rock Ventures
Ava Brunelle
Investor at Third Rock Ventures
Frequently asked questions
- Who is Greg O'Brien?
- Investor at Third Rock Ventures
- Where does Greg O'Brien work?
- Greg O'Brien is at Third Rock Ventures.
- Where did Greg O'Brien go to school?
- Greg O'Brien studied at Bentley University (Master of Science - (MS), Accountancy); Bentley University (Bachelor's degree, Corporate Finance and Accounting).
Same school
Also attended Bentley University117
Jessica DowdInvestor at OpenView Venture PartnersBrett RippergerDirector, Investor Reporting & Business Analytics at Sapphire VenturesAva BrunelleInvestor at Third Rock VenturesGabriella WilliamsInvestor at Third Rock VenturesTom MendozaInvestor at EQT VenturesSteve GentiliVice President at Alpha Partners
+ 111 more
Shared employers
Also worked at Third Rock Ventures78
Lisa PurcellInvestor at Third Rock VenturesPaul MeloneInvestor at Third Rock VenturesKevin MunnellyInvestor at Third Rock VenturesAmanda ChanInvestor at Third Rock VenturesJigar RaythathaInvestor at Third Rock VenturesOlie LuchitskyInvestor at Third Rock Ventures
+ 72 more
Also worked at HarbourVest Partners35
Samar JahanVice President of Finance at Mission BiocapitalDaniel FureyPartner, Head of Global Capital Formation at ClearSkyBrian BuennekePartner at Pantheon VenturesDan RosenPartner at Commerce VenturesJustin StreicherAssociate at Mainsail PartnersChuaPartner at Parc Capital
+ 29 more
