Qualys (QLYS) legal chief sells 65 shares under Rule 10b5-1 plan

Rhea-AI Filing Summary

QUALYS, INC. chief legal officer Bruce K. Posey reported a small open-market sale of common stock. He sold 65 shares on March 13, 2026 at an average price of about $100.09 per share and held 70,955 shares afterward.

The filing notes that this transaction was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on August 21, 2025, indicating it was scheduled in advance rather than timed discretionarily.

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

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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)
03/13/2026

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	03/13/2026		S(1)		65	D	$100.0935(2)	70,955	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, 2025.

2. The sale price represents the weighted average price of the shares sold ranging from $100.04 to $100.18 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	03/16/2026
	** 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 insider transaction did Qualys (QLYS) report in this Form 4?

Qualys reported that chief legal officer Bruce K. Posey sold 65 shares of common stock. The sale occurred on March 13, 2026 at an average price near $100.09 per share, as part of routine insider trading disclosures.

How many Qualys (QLYS) shares did Bruce K. Posey sell and at what price?

Bruce K. Posey sold 65 Qualys common shares at a weighted average price of approximately $100.09. The filing explains prices ranged from $100.04 to $100.18, and detailed breakdowns are available to regulators or shareholders on request.

How many Qualys (QLYS) shares does Bruce K. Posey hold after this Form 4 sale?

After the sale, Bruce K. Posey directly owned 70,955 Qualys common shares. This post-transaction holding, disclosed in the Form 4, shows the sale was small relative to his remaining stake in the company.

Was the Qualys (QLYS) insider sale under a Rule 10b5-1 trading plan?

Yes. The Form 4 states the sale was executed under a Rule 10b5-1 trading plan adopted by Bruce K. Posey on August 21, 2025. Such plans schedule trades in advance to reduce concerns about trade timing.

Does this Qualys (QLYS) Form 4 show any option exercises or derivative transactions?

No. The filing reports only a single non-derivative transaction: an open-market sale of common stock. The derivative section is empty, indicating there were no option exercises or other derivative security transactions in this Form 4.