John Green

Director of Finance/CFO at COGENT BIOSCIENCES, INC.

Net worth: 3 M $ as of 2026-06-29

45 year

71 connections

Health Technology

Commercial Services

Consumer Services

Profile

John L.
Green is currently Chief Financial Officer at Cogent Biosciences, Inc. Formerly, Mr. Green was Chief Financial Officer & Accounting Director at Dicerna Pharmaceuticals, Inc. from 2014 to 2020, Assurance Manager at PricewaterhouseCoopers LLP from 2008 to 2013, Vice President & Assistant Treasurer at TSI Corp from 1989 to 1994, Chief Accounting Officer at Merrimack Pharmaceuticals, Inc. from 2017 to 2018, Vice President-Finance at On-Q-ity, Inc. from 2011 to 2012, Senior Manager at Corporate Finance Group, Inc. from 2013 to 2014, Chief Financial Officer at Verastem, Inc. from 2013 to 2016, Controller at Fractyl Health, Inc. from 2015 to 2017, and Chief Financial Officer & Senior Vice President at rEVO Biologics, Inc. from 2002 to 2010.
Education includes undergraduate studies at College of the Holy Cross (Massachusetts) and Acadia University, and an MBA from Questrom School of Business.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
COGENT BIOSCIENCES, INC. 0.05%	2026-04-12	81,834 ( 0.05% )	3 M $	2026-06-29

John Green active positions

Companies	Position	Start
COGENT BIOSCIENCES, INC.	Director of Finance/CFO	2018-05-31

All active positions of John Green

Former positions of John Green

Companies	Position	End
DICERNA PHARMACEUTICALS, INC.	Director of Finance/CFO	2020-05-25
MERRIMACK PHARMACEUTICALS	Comptroller/Controller/Auditor	2018-05-31
FRACTYL HEALTH, INC.	Comptroller/Controller/Auditor	2017-02-28
VERASTEM, INC.	Director of Finance/CFO	2016-04-14
Corporate Finance Group, Inc. Corporate Finance Group, Inc. Miscellaneous Commercial ServicesCommercial Services Provides accounting, tax, business advisory and cybersecurity services	Corporate Officer/Principal	2014-05-31

See the detail of John Green's experience

Training of John Green

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of John Green's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	13
PricewaterhouseCoopers LLP PricewaterhouseCoopers LLP Miscellaneous Commercial ServicesCommercial Services Provides auditing, assurance, consulting and tax & business consulting services	Commercial Services
Dicerna Pharmaceuticals, Inc. Dicerna Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Operates as a biopharmaceutical company that focuses on discovering, developing and commercializing medicines for chronic liver diseases	Health Technology
Cogent Biosciences, Inc. Cogent Biosciences, Inc. BiotechnologyHealth Technology Discovers and develops new cellular immunotherapies for cancer	Health Technology
College of the Holy Cross (Massachusetts) College of the Holy Cross (Massachusetts) Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
TSI Corp TSI Corp Miscellaneous Commercial ServicesCommercial Services Provides lab testing services	Commercial Services
Merrimack Pharmaceuticals, Inc. Merrimack Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Discovers, develops and commercializes drugs for the treatment of immunological & autoimmune diseases and cancer	Health Technology
Acadia University Acadia University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
On-Q-ity, Inc. On-Q-ity, Inc. Medical/Nursing ServicesHealth Services Provides diagnostic services for cancer	Health Services
Corporate Finance Group, Inc. Corporate Finance Group, Inc. Miscellaneous Commercial ServicesCommercial Services Provides accounting, tax, business advisory and cybersecurity services	Commercial Services
Verastem, Inc. Verastem, Inc. BiotechnologyHealth Technology Discovers and develops drugs	Health Technology
Fractyl Health, Inc. Fractyl Health, Inc. BiotechnologyHealth Technology Develops and sells therapeutics for metabolic diseases, type 2 diabetes and obesity	Health Technology
rEVO Biologics, Inc. rEVO Biologics, Inc. BiotechnologyHealth Technology Develops and commercializes specialty therapeutics to address unmet medical needs in patients with rare, life-threatening conditions	Health Technology
Questrom School of Business Questrom School of Business Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services