[Form 4] QUALYS, INC. Insider Trading Activity

Rhea-AI Filing Summary

Bruce K. Posey, Chief Legal Officer of Qualys, Inc. (QLYS), reported two share dispositions executed on 09/22/2025 under a Rule 10b5-1 trading plan adopted on August 21, 2024. The Form 4 shows a sale of 270 shares at a weighted-average price of $135.9405, followed by a sale of 255 shares at a weighted-average price of $136.4424. The filing discloses ranges for the underlying prices: $135.28–$136.24 and $136.29–$136.63, and lists the reporter's beneficial ownership after the trades as 57,570 and 57,315 shares respectively. The Form is signed and dated 09/23/2025.

Positive

• Transaction executed under a Rule 10b5-1 plan, indicating the trades were pre-scheduled
• Form 4 filed and signed, demonstrating timely insider disclosure and regulatory compliance
• Post-transaction beneficial ownership disclosed (57,570 and 57,315 shares), providing transparency

Negative

• Insider sold shares (270 and 255 shares), which reduces the reporting person's holdings
• Specific per-price allocations not disclosed; only weighted-average prices and ranges are provided

Insights

Financial Analyst

TL;DR: Routine insider sales under a pre-established 10b5-1 plan; no new operational or earnings information disclosed.

The filing documents two small, planned dispositions by the Chief Legal Officer implemented under a Rule 10b5-1 plan adopted in August 2024. The sales were executed on 09/22/2025 at reported weighted-average prices of $135.9405 and $136.4424, with disclosed price ranges. Because these trades were made pursuant to a 10b5-1 plan, they appear pre-scheduled and do not, by themselves, indicate new material information about Qualys' business or financial condition.

Corporate Governance Expert

TL;DR: Governance process followed: trades reported on Form 4 and executed under a documented 10b5-1 plan.

The report shows compliance with insider trading disclosure requirements: the reporting person identified the 10b5-1 plan adoption date and provided price-range disclosure and post-transaction beneficial ownership counts. The timely filing (signed 09/23/2025) and explanation of weighted-average pricing align with standard disclosure practices. This is a procedural disclosure rather than a governance event signaling change in control or leadership.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

POSEY BRUCE K

(Last) (First) (Middle)

C/O QUALYS, INC.

919 E. HILLSDALE BLVD.

(Street)

FOSTER CITY CA 94404

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
QUALYS, INC. [ QLYS ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHIEF LEGAL OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
09/22/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/22/2025		S(1)		270	D	$135.9405(2)	57,570	D
Common Stock	09/22/2025		S(1)		255	D	$136.4424(3)	57,315	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sale transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 21, 2024.

2. The sale price represents the weighted average price of the shares sold ranging from $135.28 to $136.24 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

3. The sale price represents the weighted average price of the shares sold ranging from $136.29 to $136.63 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

	/s/ Bruce K. Posey	09/23/2025
	** 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 4 (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 Bruce K. Posey report on the Form 4 for QLYS?

The Form 4 reports two sales on 09/22/2025 of 270 and 255 shares executed under a Rule 10b5-1 plan.

Were the trades by the Qualys insider pre-planned?

Yes; the filing states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2024.

What prices were reported for the insider sales in the QLYS Form 4?

The weighted-average sale prices reported are $135.9405 and $136.4424, with disclosed ranges of $135.28–$136.24 and $136.29–$136.63.

How many shares did the reporting person own after the reported transactions?

The Form 4 lists beneficial ownership following the transactions as 57,570 and 57,315 shares (direct ownership).

When was the Form 4 signed and filed?

The Form 4 is signed by Bruce K. Posey and dated 09/23/2025.