Ecosystem Lead
Brian Grassadonia is an executive at Block, Inc. (NYSE: XYZ), currently serving as Ecosystem Lead, where he focuses on connecting Square, Cash App, and the rest of the company's ecosystem through integrated product experiences.[[2]](https://investors.block.xyz/governance/board-of-directors/person-details/default.aspx?ItemId=fcd7cef2-90d8-4b89-b3f7-845bffe63bdf)[[3]](https://investors.block.xyz/governance/leadership/default.aspx) He previously held key roles at Block, including as Square’s first product lead, helping launch the flagship card reader in 2010, co-creating Cash App, and later serving as Cash App’s CEO.[[2]](https://investors.block.xyz/governance/board-of-directors/person-details/default.aspx?ItemId=fcd7cef2-90d8-4b89-b3f7-845bffe63bdf)[[3]](https://investors.block.xyz/governance/leadership/default.aspx)[[5]](https://www.paymentsdive.com/news/block-shuffles-leadership-creates-chief-risk-officer-role/727197/) Before joining Block, Grassadonia worked at a startup acquired by Google and in investment banking at UBS.[[2]](https://investors.block.xyz/governance/board-of-directors/person-details/default.aspx?ItemId=fcd7cef2-90d8-4b89-b3f7-845bffe63bdf)[[3]](https://investors.block.xyz/governance/leadership/default.aspx)
Grassadonia has been active in insider trading, recently selling shares of Block stock, including 3,021 shares across transactions in January 2026 (1,038 shares at $63.98 and 1,983 at $68.52) under a Rule 10b5-1 plan, and additional sales in February 2026 such as 10,349 shares at $50.00, retaining ownership of approximately 503,784 to 518,331 shares.[[1]](https://www.investing.com/news/insider-trading-news/block-ecosystem-lead-brian-grassadonia-sells-shares-worth-202286-93CH-4433886)[[6]](https://www.streetinsider.com/SEC+Filings/Form++4++++++++++Block,+Inc.+++++++++++++++For:+Feb+20++Filed+by:+Grassadonia+Brian/26053377.html)[[7]](https://www.quiverquant.com/insiders/1803649/Brian-Grassadonia)[[8]](https://www.stocktitan.net/sec-filings/XYZ/form-4-block-inc-insider-trading-activity-5f6982cfa2c4.html) His total compensation as Ecosystem Lead reached $13,463,051, primarily from equity, reflecting his significant stake estimated at $46.6 million as of late 2025.[[4]](https://www.salary.com/research/executive-compensation/brian-grassadonia-executive-member-of-square-inc)[[7]](https://www.quiverquant.com/insiders/1803649/Brian-Grassadonia)
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