Derrick Sung - 01 Dec 2025 Form 4 Insider Report for Pulmonx Corp (LUNG)

Role: COO and CFO
Signature: /s/ David Aaron Lehman, Attorney-in-Fact
Issuer symbol: LUNG
Transactions as of: 01 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 03 Dec 2025, 19:45:52 UTC
Previous filing: 10 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sung Derrick	COO and CFO	C/O PULMONX CORPORATION, 700 CHESAPEAKE DRIVE, REDWOOD CITY	/s/ David Aaron Lehman, Attorney-in-Fact	02 Dec 2025	0001670118

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	LUNG	Common Stock	Award	$0	+1,200,000	+887%	$0.000000	1,335,319	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	LUNG	Performance Stock Units	Award	$0	+400,000		$0.000000	400,000	01 Dec 2025	Common Stock	400,000		Direct	F2

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

Explanation of Responses:

Id	Content
F1	Represents grant of Restricted Stock Units payable solely in common stock of the Issuer, 25% of which vests one year from the grant date of December 1, 2025, and the remainder vests in equal quarterly installments over the three-year period following the date of grant.
F2	Each Performance Stock Unit represents a contingent right to receive one share of the Issuer's common stock. The Performance Stock Units vest upon meeting the following two conditions: (a) upon the Issuer's common stock achieving a specified price per share and (b) with respect to 33% on the one year following the grant date of December 1, 2025 and the remainder in eight equal quarterly installments.

Content

Represents grant of Restricted Stock Units payable solely in common stock of the Issuer, 25% of which vests one year from the grant date of December 1, 2025, and the remainder vests in equal quarterly installments over the three-year period following the date of grant.

Each Performance Stock Unit represents a contingent right to receive one share of the Issuer's common stock. The Performance Stock Units vest upon meeting the following two conditions: (a) upon the Issuer's common stock achieving a specified price per share and (b) with respect to 33% on the one year following the grant date of December 1, 2025 and the remainder in eight equal quarterly installments.