John F. Sheridan

Companies

• Tandem Diabetes Care, Inc.Board member May 20, 2021 to now¹
• Tandem Diabetes Care, Inc.Chief executive officer May 17, 2019 to now²
• Tandem Diabetes Care, Inc.President May 17, 2019 to now²
• Acutus Medical, Inc.Board member Mar 19, 2021 to Jun 15, 2023³
• Tandem Diabetes Care, Inc.Chief operating officer Nov 13, 2013 to Feb 27, 2019⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• TDTandem Diabetes Care, Inc. TNDM160,260 shares⁵$2.6M at $16.23Aug 15, 2026
• AMAcutus Medical, Inc.24,347 shares⁶Jun 15, 2023

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 15, 2026Shares withheld for tax 5,055 shares at $22.72 of Tandem Diabetes Care, Inc.⁵
• Aug 15, 2026Exercised options 9,934 shares of Tandem Diabetes Care, Inc.⁵
• Aug 15, 2026Shares withheld for tax 3,044 shares at $22.72 of Tandem Diabetes Care, Inc.⁵
• Aug 15, 2026Exercised options 5,982 shares of Tandem Diabetes Care, Inc.⁵
• May 15, 2026Granted 1,336 shares at $10.90 of Tandem Diabetes Care, Inc.⁷
• May 15, 2026Shares withheld for tax 18,944 shares at $12.82 of Tandem Diabetes Care, Inc.⁷
• May 15, 2026Exercised options 39,735 shares of Tandem Diabetes Care, Inc.⁷
• May 15, 2026Shares withheld for tax 3,044 shares at $12.82 of Tandem Diabetes Care, Inc.⁷
• May 15, 2026Exercised options 5,982 shares of Tandem Diabetes Care, Inc.⁷
• May 15, 2026Shares withheld for tax 2,785 shares at $12.82 of Tandem Diabetes Care, Inc.⁷
• May 15, 2026Exercised options 5,472 shares of Tandem Diabetes Care, Inc.⁷
• Feb 17, 2026Shares withheld for tax 2,400 shares at $18.95 of Tandem Diabetes Care, Inc.⁸
• Feb 17, 2026Exercised options 5,983 shares of Tandem Diabetes Care, Inc.⁸
• Feb 17, 2026Shares withheld for tax 1,963 shares at $18.95 of Tandem Diabetes Care, Inc.⁸
• Feb 17, 2026Exercised options 5,471 shares of Tandem Diabetes Care, Inc.⁸
• Nov 17, 2025Shares withheld for tax 3,038 shares at $18.61 of Tandem Diabetes Care, Inc.⁹
• Nov 17, 2025Exercised options 5,982 shares of Tandem Diabetes Care, Inc.⁹
• Nov 17, 2025Shares withheld for tax 2,779 shares at $18.61 of Tandem Diabetes Care, Inc.⁹
• Nov 17, 2025Exercised options 5,472 shares of Tandem Diabetes Care, Inc.⁹
• Aug 15, 2025Shares withheld for tax 3,038 shares at $10.82 of Tandem Diabetes Care, Inc.¹⁰
• Aug 15, 2025Exercised options 5,982 shares of Tandem Diabetes Care, Inc.¹⁰
• Aug 15, 2025Shares withheld for tax 2,779 shares at $10.82 of Tandem Diabetes Care, Inc.¹⁰
• Aug 15, 2025Exercised options 5,471 shares of Tandem Diabetes Care, Inc.¹⁰
• Aug 11, 2025Bought 10,000 shares at $10.23 of Tandem Diabetes Care, Inc.¹¹
• May 15, 2025Shares withheld for tax 12,152 shares at $22.70 of Tandem Diabetes Care, Inc.¹²