Kevin Raymond Merrill Smith - 01 Dec 2025 Form 4 Insider Report for Inogen Inc (INGN)

Role: CEO and President, Director
Signature: /s/ Mary Wright, as Attorney-in-Fact
Issuer symbol: INGN
Transactions as of: 01 Dec 2025
Net transactions value: -$96,028
Form type: 4
Filing time: 02 Dec 2025, 16:06:45 UTC
Previous filing: 03 Sep 2025
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Smith Kevin Raymond Merrill	CEO and President, Director	C/O INOGEN, INC., 859 WARD DRIVE, GOLETA	/s/ Mary Wright, as Attorney-in-Fact	02 Dec 2025	0001802639

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	INGN	Common Stock	Options Exercise	$0	+28,334	+39%	$0.000000	100,108	01 Dec 2025	Direct
transaction	INGN	Common Stock	Tax liability	$96,028	-13,817	-14%	$6.95	86,291	01 Dec 2025	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	INGN	Restricted Stock Unit	Options Exercise	$0	-28,334	-50%	$0.000000	28,333	01 Dec 2025	Common Stock	28,334		Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	The reported shares were withheld to cover the Reporting Person's tax withholding liability in connection with a portion of a time-based restricted stock award that vested on December 1, 2025.
F2	Each restricted stock unit represents a contingent right to receive one share of Inogen common stock.
F3	Subject to the reporting person's continued service, 1/3rd of the restricted stock units shall vest one year from December 1, 2023 (the "Vesting Commencement Date"), and 1/3rd of the restricted stock units shall vest every year thereafter on the same day of the year as the Vesting Commencement Date.