Boulder-based Foundry Group cashes in on Fitbit initial public offering

Fitbit’s massive $732 million initial public offering was felt in Boulder Thursday and not just because the city is routinely ranked one of the nation’s healthiest.

Boulder venture capital firm Foundry Group, a major Fitbit shareholder, sold more than 7.6 million shares into the IPO, according to a regulatory filing made Thursday. At an IPO price of $20 per share, that meant a payoff of just more than $152 million.

San Francisco-based Fitbit makes wearable fitness trackers that measure everything from a person’s heart rate to the amount of sleep they’re getting.

Foundry Group owned 28.9 percent of the company’s shares, or roughly 52.7…