Myoungil Cha - 16 Jun 2025 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Role: Director
Signature: /s/ Rachel Malina, Attorney-in-Fact for Myoungil Cha
Issuer symbol: TNDM
Transactions as of: 16 Jun 2025
Net transactions value: $0
Form type: 4
Filing time: 18 Jun 2025, 16:08:10 UTC
Previous filing: 23 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Cha Myoungil	Director	12400 HIGH BLUFF DRIVE, SAN DIEGO	/s/ Rachel Malina, Attorney-in-Fact for Myoungil Cha	18 Jun 2025	0001934068

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TNDM	Common Stock	Options Exercise	$0	+1,749	+15%	$0.000000	13,699	16 Jun 2025	Direct

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	-1,749	-100%	$0.000000	0	16 Jun 2025	Common Stock	1,749		Direct	F1, F2, F3

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

Explanation of Responses:

Id	Content
F1	Awarded on June 15, 2022 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).
F2	Each restricted stock unit (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.
F3	The total number of shares subject to the RSU will vest over a period of three years in equal annual installments on the anniversary of the grant, subject to the terms of the 2013 Plan.