Shannon M. Hansen - May 15, 2025 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Signature
/s/ Rachel Malina, Attorney-in-Fact for Shannon M. Hansen
Stock symbol
TNDM
Transactions as of
May 15, 2025
Transactions value $
-$51,643
Form type
4
Date filed
5/19/2025, 06:07 PM
Previous filing
Feb 20, 2025
Next filing
Jun 5, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Hansen Shannon Marie EVP & Chief Legal Officer 12400 HIGH BLUFF DRIVE, SAN DIEGO /s/ Rachel Malina, Attorney-in-Fact for Shannon M. Hansen 2025-05-19 0001908267

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TNDM Common Stock Options Exercise $0 +531 +4.19% $0.00 13.2K May 15, 2025 Direct
transaction TNDM Common Stock Tax liability -$4.31K -190 -1.44% $22.70 13K May 15, 2025 Direct F1
transaction TNDM Common Stock Options Exercise $0 +1.44K +11.05% $0.00 14.4K May 15, 2025 Direct
transaction TNDM Common Stock Tax liability -$11.7K -515 -3.57% $22.70 13.9K May 15, 2025 Direct F1
transaction TNDM Common Stock Options Exercise $0 +4.39K +31.5% $0.00 18.3K May 15, 2025 Direct
transaction TNDM Common Stock Tax liability -$35.6K -1.57K -8.57% $22.70 16.7K May 15, 2025 Direct F1
holding TNDM Common Stock 1.94K May 15, 2025 Shannon M. Hansen Trust F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction TNDM Restricted Stock Unit Options Exercise $0 -531 -25.01% $0.00 1.59K May 15, 2025 Common Stock 531 Direct F3, F4, F5
transaction TNDM Restricted Stock Unit Options Exercise $0 -1.44K -20% $0.00 5.75K May 15, 2025 Common Stock 1.44K Direct F6, F7, F8
transaction TNDM Restricted Stock Unit Options Exercise $0 -4.39K -33.33% $0.00 8.77K May 15, 2025 Common Stock 4.39K Direct F7, F9, F10
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.
F2 The securities are held by the Shannon M. Hansen Trust dated July 8, 2003, of which Shannon M. Hansen is the Trustee.
F3 Awarded on February 15, 2022 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).
F4 Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.
F5 RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 2/15/2023, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.
F6 Awarded on May 25, 2023 pursuant to the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan).
F7 Each restricted stock unit (RSU) represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2023 Plan.
F8 RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2024, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.
F9 Awarded on May 23, 2024 pursuant to the 2023 Plan.
F10 RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2025, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.