Elizabeth A. Gasser - Feb 28, 2022 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Role: EVP, Chief Strategy Officer
Signature: s/ David B. Berger, Attorney-in-Fact for Elizabeth A. Gasser
Stock symbol: TNDM
Transactions as of: Feb 28, 2022
Transactions value $: -$17,202
Form type: 4
Date filed: 3/2/2022, 06:04 PM
Previous filing: Dec 29, 2021
Next filing: May 18, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TNDM	Common Stock	Options Exercise	$0	+372	+86.31%	$0.00	803	Feb 28, 2022	Direct
transaction	TNDM	Common Stock	Tax liability	-$17.2K	-153	-19.05%	$112.43	650	Feb 28, 2022	Direct	F1

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	+372	+12.47%	$0.00	3.35K	Feb 28, 2022	Common Stock	372		Direct	F2, F3, F4

* 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	Granted pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan (the 2013 Plan).
F3	Each RSU represents a contingent right to receive one share of common stock of the Company.
F4	RSU vested 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.