Block Director Anthony Eisen Files Form 144 to Sell 6,000 Shares Under 10b5-1 Plan

Executive Summary

On September 22, 2026, Block, Inc. (NYSE: SQ) director Anthony Mathew Eisen filed a Form 144 notice of proposed sale covering 6,000 shares of common stock with an aggregate market value of $477,540.00 (implying approximately $79.59 per share). The proposed transaction is scheduled through Morgan Stanley Smith Barney LLC and is governed by a Rule 10b5-1 trading plan adopted on March 2, 2026.

Transaction Details

• Security: Common Stock
• Shares to Sell: 6,000 shares
• Aggregate Market Value: $477,540.00
• Shares Outstanding: 540,816,000
• Acquisition Origin: The shares were originally acquired on January 31, 2022, as restricted stock directly from the issuer.
• Significance Relative to Float: The proposed sale represents approximately 0.001% of the issuer's 540.8M shares outstanding.

Historical Selling Pattern

The filing reflects an active, programmatic liquidation strategy under the insider's Rule 10b5-1 plan. Over the prior three months, Mr. Eisen has executed near-daily tranches of 6,000 shares, alongside larger periodic disposals (e.g., 141,000 shares on July 15, 2026, and 41,000 shares on August 5, 2026).

Significance Assessment

• Trading Significance: Low
• Rationale: The transaction represents a small fraction of the company's total shares outstanding and follows a pre-established Rule 10b5-1 plan adopted months earlier, reflecting routine liquidity management rather than discretionary, event-driven trading.