David McDonough

David

McDonough

NYC  LON, SF

Founder  Builder, Designer, Investor, Advisor, Blah Blah Blah

Product Design-Eng  Startups, VC, Data, Economics, Markets, Tech

I like designing & building things. Mostly digital things, but sometimes real world stuff too. I founded Commonstock, a social network for investing, which was acquired by Yahoo! Finance. I trade stocks, invest in startups, advise founders, play tennis/golf/soccer/etc and generally just nerd out.     I'm working on my existential highlight reel...  LET'S JAM!

WORK

Something New

Founder

Startup

Back in the arena, trying stuff. #TimeToBuild

2025
Now

Yahoo Finance

Product

BigTech

Led team to build new advanced tools & community

2023
2025

Commonstock

Acquired

Founder/CEO

Startup

Social network & tool for advanced investors, grew to ~$40B of portfolios, raised ~$40m from top VCs, acquired by Yahoo Finance in 2023

2017
2023

Google

Corp Strategy & Policy

BigTech

Corporate strategy, product policy & safety, anti-spam/fraud engineering, Google for Entrepreneurs, Google for Startups

2012
2017

Greenspring

Analyst

VC

Unpaid Intern getting lunches -> Investment Analyst

2009
2012

Pro Squash

Pro

Sports

Played tournaments... mostly coached tennis/squash

2008
2009

Trinity College

Student

College

Led squash team to win 4x National Champions, undefeated over all 4 years

2004
2008