Form 4 Tracker
TANDEM DIABETES CARE INC
TNDM

44 insider filings · Latest: Aug 15, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Sep 17, 2026Sep 17 8:32 PMMARK NOVARA
Proposed Sale
360$17.53$6.3K—

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Aug 18, 2026Aug 18 8:23 PMMARK NOVARA
Proposed Sale
131$22.26$2.9K—

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Jun 17, 2026Jun 17 8:27 PMMARK NOVARA
Proposed Sale
361$16.69$6.0K—

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May 19, 2026May 19 8:37 PMMARK NOVARA
Proposed Sale
266$13.53$3.6K—

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Mar 17, 2026Mar 18 8:06 PMMark David NovaraEVP & CHIEF COMMERCIAL OFFICER
Sale
187$23.05$4.3K37,656(D)

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Mar 17, 2026Mar 17 8:38 PMMARK NOVARA
Proposed Sale
187$21.91$4.1K—

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Mar 5, 2026Mar 9 8:27 PMMark David NovaraEVP & CHIEF COMMERCIAL OFFICER
Sale
2$22.81$4635,969(D)

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Mar 5, 2026Mar 5 9:29 PMMARK NOVARA
Proposed Sale
2$23.41$47—

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Nov 21, 2024Nov 21 4:22 PMBLICKENSTAFF KIM D
Proposed Sale
30,000$30.00$900.0K—

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Nov 20, 2024Nov 20 9:52 PMBLICKENSTAFF KIM D
Proposed Sale
10,000$120.00$1.2M—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Aug 15, 2026Aug 18 8:28 PMLeigh VossellerEVP & CHIEF FINANCIAL OFFICER
Option Exercise
4,120—18,368(D)

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Aug 15, 2026Aug 18 8:28 PMJohn F SheridanDirector, PRESIDENT & CEO
Option Exercise
15,916—69,537(D)

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Aug 15, 2026Aug 18 8:28 PMSusan MorrisonEVP & Chief Admin. Officer
Option Exercise
2,827—12,115(D)

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Aug 15, 2026Aug 18 8:27 PMJean-Claude KyrillosEVP & Chief Operating Officer
Option Exercise
1,010—7,067(D)

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Aug 15, 2026Aug 18 8:27 PMElizabeth Anne GasserEVP, Chief Strategy Officer
Option Exercise
3,014—13,418(D)

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Aug 15, 2026Aug 18 8:27 PMRick CarpenterEVP & Chief Technology Officer
Option Exercise
2,507—11,268(D)

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Aug 15, 2026Aug 18 8:26 PMShannon Marie HansenEVP & Chief Legal Officer
Option Exercise
3,014—13,418(D)

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Jul 15, 2026Jul 17 8:07 PMJean-Claude KyrillosEVP & Chief Operating Officer
Option Exercise
3,636—14,545(D)

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May 29, 2026Jun 2 8:21 PMJohn F SheridanDirector, PRESIDENT & CEO
Grant/Award
191,103—191,103(D)

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May 29, 2026Jun 2 8:21 PMElizabeth Anne GasserEVP, Chief Strategy Officer
Grant/Award
29,136—29,136(D)

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May 29, 2026Jun 2 8:21 PMLeigh VossellerEVP & CHIEF FINANCIAL OFFICER
Grant/Award
62,657—62,657(D)

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May 29, 2026Jun 2 8:21 PMJean-Claude KyrillosEVP & Chief Operating Officer
Grant/Award
29,136—29,136(D)

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May 29, 2026Jun 2 8:20 PMSusan MorrisonEVP & Chief Admin. Officer
Grant/Award
29,136—29,136(D)

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May 29, 2026Jun 2 8:20 PMRick CarpenterEVP & Chief Technology Officer
Grant/Award
26,003—26,003(D)

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May 29, 2026Jun 2 8:20 PMShannon Marie HansenEVP & Chief Legal Officer
Grant/Award
29,136—29,136(D)

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May 21, 2026May 23 1:36 AMDick AllenOther
Option Exercise
8,759—0(D)

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May 20, 2026May 23 1:36 AMDick AllenOther
Grant/Award
10,220—10,220(D)

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May 21, 2026May 22 8:13 PMPeyton R HowellDirector
Option Exercise
8,759—0(D)

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May 20, 2026May 22 8:13 PMPeyton R HowellDirector
Grant/Award
10,220—10,220(D)

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May 21, 2026May 22 8:11 PMJoao Paulo Falcao MalagueiraDirector
Option Exercise
8,759—0(D)

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