Dexcom Officer Sadie Stern Files Form 144 to Sell $201K in Common Stock

Dexcom, Inc. (DXCM) Form 144 Filing Analysis

Executive Summary

On October 27, 2026, Sadie Stern, an Officer at Dexcom, Inc., filed a Form 144 notice proposing to sell 2,565 shares of common stock through Morgan Stanley Smith Barney LLC. The aggregate market value of the proposed transaction is $201,660.30, implying an estimated share price of approximately $78.62.

Transaction & Plan Details

• Security: Common Stock
• Shares Proposed for Sale: 2,565
• Aggregate Market Value: $201,660.30
• Shares Outstanding: 377,360,765 (proposed sale represents <0.001% of total outstanding shares)
• Acquisition Origin: Shares were originally acquired as restricted stock directly from the issuer on March 8, 2024.
• Rule 10b5-1 Trading Plan: The transaction is executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on May 28, 2026.

Historical Selling Pattern

The filer has engaged in consistent monthly sales of identical tranche sizes:

• September 28, 2026: 2,565 shares sold for gross proceeds of $220,974.75.
• August 27, 2026: 2,565 shares sold for gross proceeds of $226,669.05.

Trading Significance

Significance: Low. The proposed transaction represents routine, programmatic liquidations executed under a pre-scheduled Rule 10b5-1 plan. Given the modest transaction size relative to Dexcom's total market capitalization and float, this sale is unlikely to impact market sentiment or stock performance.