![Jack Sinclair](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Jack Sinclair
Director of Finance/CFO at
Stack Exchange, Inc.
Profile
Jack Sinclair was the founder of Return Path, Inc. (founded in 1999, title: Chief Financial Officer) and Bolster Networks, Inc. (founded in 2020, title: Chief Financial Officer).
Mr. Sinclair is currently the Chief Financial Officer at Stack Exchange, Inc. Former job includes Principal at Stern Value Management Ltd. Education includes an undergraduate degree from the University of Pennsylvania.
Jack Sinclair active positions
| Companies | Position | Start |
|---|---|---|
Stack Exchange, Inc.
 Stack Exchange, Inc. Internet Software/ServicesTechnology Services Operates as a question and answer platform that allows people to ask, share & learn | Director of Finance/CFO | - |
Former positions of Jack Sinclair
| Companies | Position | End |
|---|---|---|
Bolster Networks, Inc.
 Bolster Networks, Inc. Internet Software/ServicesTechnology Services Operates online marketplace to connect high-growth companies with executives | Founder | 01/03/2025 |
Return Path, Inc.
 Return Path, Inc. Information Technology ServicesTechnology Services Provides email intelligence solutions for marketers | Founder | 01/06/2019 |
Stern Value Management Ltd.
 Stern Value Management Ltd. Miscellaneous Commercial ServicesCommercial Services Provides management consulting services | Corporate Officer/Principal | - |
Training of Jack Sinclair
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
20
1st degree connections
5
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 5 |
|---|---|
Return Path, Inc.
Return Path, Inc. Information Technology ServicesTechnology Services Provides email intelligence solutions for marketers | Technology Services |
University of Pennsylvania
 University of Pennsylvania Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Stern Value Management Ltd.
Stern Value Management Ltd. Miscellaneous Commercial ServicesCommercial Services Provides management consulting services | Commercial Services |
Stack Exchange, Inc.
Stack Exchange, Inc. Internet Software/ServicesTechnology Services Operates as a question and answer platform that allows people to ask, share & learn | Technology Services |
Bolster Networks, Inc.
Bolster Networks, Inc. Internet Software/ServicesTechnology Services Operates online marketplace to connect high-growth companies with executives | Technology Services |
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