Susan Morrison - 13 Oct 2021 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Role: EVP & Chief Admin. Officer
Signature: s/ David B. Berger, Attorney-in-Fact for Susan M. Morrison
Issuer symbol: TNDM
Transactions as of: 13 Oct 2021
Net transactions value: -$1,128,488
Form type: 4
Filing time: 14 Oct 2021, 16:56:19 UTC
Previous filing: 31 Aug 2021
Next filing: 05 Nov 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TNDM	Common Stock	Options Exercise	$45,840	+4,145	+51%	$11.06	12,227	13 Oct 2021	Direct	F1
transaction	TNDM	Common Stock	Options Exercise	$53,127	+5,903	+48%	$9.00	18,130	13 Oct 2021	Direct	F1
transaction	TNDM	Common Stock	Sale	$1,326,421	-10,048	-55%	$132.01	8,082	13 Oct 2021	Direct	F2, F3

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	Common Stock	Options Exercise	$45,840	+4,145		$11.06	0	13 Oct 2021	Common Stock	4,145	$11.06	Direct	F4, F5
transaction	TNDM	Common Stock	Options Exercise	$53,127	+5,903		$9.00	0	13 Oct 2021	Common Stock	5,903	$9.00	Direct	F5, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of common stock received upon exercise of a stock option award.
F2	The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 6, 2021.
F3	The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $132.00 to $132.70. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.
F4	The option vested as to twenty-five percent (25%) of the underlying shares on 04/23/2014, and the remaining shares vested in thirty-six (36) equal monthly installments thereafter.
F5	The expiration date for these options is 10 years from the date of grant.
F6	The options vested as to twenty-five percent (25%) of the underlying shares on 5/17/2018, and the remaining shares vested in thirty-six (36) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").