Leigh Vosseller - Feb 28, 2022 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Role: EVP & CHIEF FINANCIAL OFFICER
Signature: s/David B. Berger, Attorney-in-Fact for Leigh A. Vosseller
Stock symbol: TNDM
Transactions as of: Feb 28, 2022
Transactions value $: -$15,515
Form type: 4
Date filed: 3/2/2022, 06:21 PM
Previous filing: Dec 1, 2021
Next filing: May 10, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TNDM	Common Stock	Options Exercise	$0	+407	+6.41%	$0.00	6.76K	Feb 28, 2022	Direct
transaction	TNDM	Common Stock	Tax liability	-$15.5K	-138	-2.04%	$112.43	6.62K	Feb 28, 2022	Direct	F1
holding	TNDM	Common Stock						145	Feb 28, 2022	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	+407	+12.52%	$0.00	3.66K	Feb 28, 2022	Common Stock	407		Direct	F3, F4, F5

* 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	Granted pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan (the 2013 Plan).
F4	Each RSU represents a contingent right to receive one share of common stock of the Company.
F5	RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 5/27/2021, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.