Elizabeth A. Gasser - Aug 15, 2023 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Role: EVP, Chief Strategy Officer
Signature: /s/ Rachel Malina, Attorney-in-Fact for Elizabeth A. Gasser
Stock symbol: TNDM
Transactions as of: Aug 15, 2023
Transactions value $: -$6,382
Form type: 4
Date filed: 8/17/2023, 04:29 PM
Previous filing: May 30, 2023
Next filing: Aug 30, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TNDM	Common Stock	Options Exercise	$0	+162	+4.13%	$0.00	4.09K	Aug 15, 2023	Direct
transaction	TNDM	Common Stock	Tax liability	-$1.65K	-57	-1.4%	$28.88	4.03K	Aug 15, 2023	Direct	F1
transaction	TNDM	Common Stock	Options Exercise	$0	+474	+11.77%	$0.00	4.5K	Aug 15, 2023	Direct
transaction	TNDM	Common Stock	Tax liability	-$4.74K	-164	-3.64%	$28.88	4.34K	Aug 15, 2023	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	-162	-12.47%	$0.00	1.14K	Aug 15, 2023	Common Stock	162		Direct	F2, F3, F4
transaction	TNDM	Restricted Stock Unit	Options Exercise	$0	-474	-12.49%	$0.00	3.32K	Aug 15, 2023	Common Stock	474		Direct	F3, F5, F6

* 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	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).
F3	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.
F4	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.
F5	Awarded on May 25, 2022 pursuant to the 2013 Plan, as amended, and the agreements related thereto.
F6	RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.