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Coinbase CEO Defends COIN Stock Sales as Portfolio Diversification

Coinbase CEO Defends COIN Stock Sales as Portfolio Diversification

According to an official announcement, Armstrong executed 88 sales and no purchases under a 10b5-1 plan, with reported quarterly sales in the billions, though prior filings showed materially lower figures.

Summary

According to an official announcement, Brian Armstrong has never purchased COIN via his Rule 10b5-1 plan; all 88 recorded trades were sales. The announcement lists quarterly sale proceeds of $4.37B (Q4 2024), $1.96B (Q2 2025), and $2.68B (Q3 2025). Previously reported disclosures cited $437M, $196M, and $268M for the same periods; this discrepancy is not reconciled. Coinbase shares are down 45% over the past six months.

Terms & Concepts
  • COIN Stock: The publicly traded shares of Coinbase Global Inc., listed on the Nasdaq exchange.
  • Portfolio Diversification: An investment strategy that spreads exposure across assets to reduce risk concentration.
  • Rule 10b5-1 Plan: A pre-arranged trading plan that allows insiders to sell or buy shares on a set schedule to mitigate insider trading concerns.