Alphabet Co-Founder Sergey Brin Has Sold $25.3 Billion in GOOG Stock Across 10,633 Transactions

Sergey Brin, co-founder and director of Alphabet Inc. (GOOG), has sold $25.3 billion in company stock across 10,633 insider transactions — one of the largest insider sell totals of any individual in tech history. Despite two decades of selling, Brin still holds over 359 million shares worth approximately $60 billion at current prices. His most recent filing from February 2026 was a gift of 437,500 shares, not a sale.

The Numbers

Metric	Value
Career Sell Value	$25.3 billion
Career Buy Value	$254K
Total Transactions	10,633
Last Filing	Feb 19, 2026
Shares Remaining	359.8 million

What It Means

Brin's $25.3 billion in career sales represents steady diversification from the company he co-founded in 1998. His selling has been entirely through pre-arranged 10b5-1 plans, with the last actual sales occurring in April 2022 at pre-split prices around $2,600 per share. Since then, his filings have consisted exclusively of stock conversions (Class B to Class A) and charitable gifts — suggesting his 10b5-1 selling plan may have been paused or terminated.

Even after $25 billion in sales, Brin remains Alphabet's second-largest individual shareholder behind Larry Page. His 359+ million shares represent significant voting power through the dual-class stock structure. The shift from selling to gifting aligns with Brin's increased philanthropic activity through the Brin Wojcicki Foundation.

What to Watch

• Whether Brin resumes direct sales through a new 10b5-1 plan after a 3+ year pause, which would be a major signal given the share price has nearly tripled since his last sale
• The pace of charitable gifting, which has averaged millions of shares per quarter and serves as an alternative form of position reduction
• Any changes in Alphabet's dual-class structure that could affect Brin's voting influence relative to his economic interest