Skip to main content
Signal8

Sheridan John F

SEC insider (Form 3/4/5 filer). CIK 0001365369. PRESIDENT & CEO at TANDEM DIABETES CARE INC (TNDM). 53 reported Form 4/5 transactions since Sep 2024; latest on Aug 15, 2026. Located in SAN DIEGO, CA.

Companies Sheridan John F has filed insider reports for

  • TANDEM DIABETES CARE INC (TNDM): Director, Officer, PRESIDENT & CEO
Sheridan John F profile photo

Sheridan John F

CIK: 0001365369

Transaction Breakdown

Open Market Buys (P)1 (1.9%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)23 (43.4%)

Derivative conversions

Awards (A)6 (11.3%)

Compensation grants

Other (G, F, J, C, D, …)23 (43.4%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

TANDEM DIABETES CARE INC logo
TNDM

TANDEM DIABETES CARE INC

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (53 total)

  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    Aug 15, 2026
    Exercise
    Direct
    6K shares-
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    Aug 15, 2026
    Tax Payment
    Direct
    5.1K shares at avg. $22.72$115K
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    Aug 15, 2026
    Exercise
    Direct
    9.9K shares-
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    Aug 15, 2026
    Tax Payment
    Direct
    3K shares at avg. $22.72$69K
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    May 29, 2026
    Award

    Restricted Stock Unit

    Direct
    191.1K shares-
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    May 15, 2026
    Exercise
    Direct
    5.5K shares-
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    May 15, 2026
    Exercise
    Direct
    39.7K shares-
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    May 15, 2026
    Exercise
    Direct
    6K shares-
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    May 15, 2026
    Tax Payment
    Direct
    2.8K shares at avg. $12.82$36K
  • TANDEM DIABETES CARE INC logo
    TNDM

    TANDEM DIABETES CARE INC

    May 15, 2026
    Tax Payment
    Direct
    3K shares at avg. $12.82$39K

1-10 of 53

…