Leigh Vosseller - Aug 15, 2024 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Role: EVP & CHIEF FINANCIAL OFFICER
Signature: /s/ Rachel Malina, Attorney-in-Fact for Leigh A. Vosseller
Stock symbol: TNDM
Transactions as of: Aug 15, 2024
Transactions value $: -$33,566
Form type: 4
Date filed: 8/19/2024, 08:31 PM
Previous filing: May 28, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TNDM	Common Stock	Options Exercise	$0	+163	+0.87%	$0.00	19K	Aug 15, 2024	Direct
transaction	TNDM	Common Stock	Tax liability	-$2.59K	-59	-0.31%	$43.82	18.9K	Aug 15, 2024	Direct	F1
transaction	TNDM	Common Stock	Options Exercise	$0	+474	+2.5%	$0.00	19.4K	Aug 15, 2024	Direct
transaction	TNDM	Common Stock	Tax liability	-$7.45K	-170	-0.88%	$43.82	19.2K	Aug 15, 2024	Direct	F1
transaction	TNDM	Common Stock	Options Exercise	$0	+1.5K	+7.81%	$0.00	20.7K	Aug 15, 2024	Direct
transaction	TNDM	Common Stock	Tax liability	-$23.5K	-537	-2.59%	$43.82	20.2K	Aug 15, 2024	Direct	F1
holding	TNDM	Common Stock						11.9K	Aug 15, 2024	Leigh A. Vosseller 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	-163	-25.08%	$0.00	487	Aug 15, 2024	Common Stock	163		Direct	F3, F4, F5
transaction	TNDM	Restricted Stock Unit	Options Exercise	$0	-474	-24.99%	$0.00	1.42K	Aug 15, 2024	Common Stock	474		Direct	F4, F6, F7
transaction	TNDM	Restricted Stock Unit	Options Exercise	$0	-1.5K	-12.5%	$0.00	10.5K	Aug 15, 2024	Common Stock	1.5K		Direct	F8, 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 Leigh A. Vosseller Trust dated January 17, 2010, of which Leigh Vosseller is the Trustee.
F3	Awarded on May 18, 2021 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 5/15/2022, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.
F6	Awarded on May 25, 2022 pursuant to the 2013 Plan.
F7	RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2023, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.
F8	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).
F9	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 2023 Plan.
F10	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.