[Form 3] Pulmonx Corp Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Pulmonx Corporation (LUNG) reported insider ownership via a Form 3. Executive Derrick Sung, who serves as COO and CFO, disclosed 135,319 shares of Common Stock held directly. The filing lists the Date of Event as 11/03/2025. No derivative securities were reported in Table II.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Sung Derrick

(Last) (First) (Middle)

C/O PULMONX CORPORATION

700 CHESAPEAKE DRIVE

(Street)

REDWOOD CITY CA 94063

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
11/03/2025

3. Issuer Name and Ticker or Trading Symbol
Pulmonx Corp [ LUNG ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	COO and CFO

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	135,319	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Derrick Sung	11/07/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Pulmonx (LUNG) disclose in this Form 3?

An executive, Derrick Sung (COO and CFO), reported direct ownership of 135,319 shares of Common Stock.

Who is the reporting person in Pulmonx’s (LUNG) Form 3?

The reporting person is Derrick Sung, the company’s COO and CFO.

How many Pulmonx (LUNG) shares does the executive directly own?

He directly owns 135,319 shares of Common Stock.

Were any derivative securities reported in this filing?

No. Table II shows no derivative securities reported.

What is the Date of Event for this Form 3?

The Date of Event is 11/03/2025.

Is this filing made by multiple reporting persons?

No. It states Form filed by One Reporting Person.