Qualys legal chief Bruce K. Posey sells 881 shares

The sales were made under a Rule 10b5-1 trading plan adopted August 21, 2025.

Rhea-AI Filing Summary

Qualys, Inc. (QLYS) Chief Legal Officer Bruce K. Posey sold 881 shares of common stock in six direct transactions on October 20, 2026. Reported prices were $184.3348 (84 shares), $185.3100 (7), $187.2514 (35), $189.5173 (244), $190.4867 (449) and $191.2576 (62) per share. The sales were made under a Rule 10b5-1 trading plan adopted August 21, 2025.

Insider Trade Summary 10b5-1

Net Seller: 881 shares

Net Sell 6 txns

Insider POSEY BRUCE K

Role CHIEF LEGAL OFFICER

Sold 881 shs ($167K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	84	$184.3348	$15K
Sale	Common Stock F1	7	$185.31	$1K
Sale	Common Stock F1, F3	35	$187.2514	$7K
Sale	Common Stock F1, F4	244	$189.5173	$46K
Sale	Common Stock F1, F5	449	$190.4867	$86K
Sale	Common Stock F1, F6	62	$191.2576	$12K

Holdings After Transaction: Common Stock — 57,807 shares (Direct)

Footnotes (6)

1. F1. 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. F2. The sale price represents the weighted average price of the shares sold ranging from $184.25 to $184.53 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. F3. The sale price represents the weighted average price of the shares sold ranging from $187.24 to $187.28 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.
4. F4. The sale price represents the weighted average price of the shares sold ranging from $188.895 to $189.87 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.
5. F5. The sale price represents the weighted average price of the shares sold ranging from $189.90 to $190.88 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.
6. F6. The sale price represents the weighted average price of the shares sold ranging from $190.92 to $191.37 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.

Key Figures

Shares sold: 881 shares Shares sold, transaction 1: 84 shares at $184.3348 per share Shares sold, transaction 2: 7 shares at $185.3100 per share +4 more

7 metrics

Shares sold 881 shares Across six direct transactions on October 20, 2026

Shares sold, transaction 1 84 shares at $184.3348 per share October 20, 2026; weighted-average price for shares sold ranging from $184.25 to $184.53

Shares sold, transaction 2 7 shares at $185.3100 per share October 20, 2026

Shares sold, transaction 3 35 shares at $187.2514 per share October 20, 2026; weighted-average price for shares sold ranging from $187.24 to $187.28

Shares sold, transaction 4 244 shares at $189.5173 per share October 20, 2026; weighted-average price for shares sold ranging from $188.895 to $189.87

Shares sold, transaction 5 449 shares at $190.4867 per share October 20, 2026; weighted-average price for shares sold ranging from $189.90 to $190.88

Shares sold, transaction 6 62 shares at $191.2576 per share October 20, 2026; weighted-average price for shares sold ranging from $190.92 to $191.37

Key Terms

Rule 10b5-1 trading plan, weighted average price

2 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"sale price represents the weighted average price of the shares sold"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many QLYS shares did Bruce K. Posey sell?

Bruce K. Posey, Qualys, Inc.'s Chief Legal Officer, reported sales totaling 881 common shares across six direct transactions on October 20, 2026. The sales were made pursuant to a Rule 10b5-1 trading plan adopted August 21, 2025.

What prices did Bruce K. Posey's QLYS sales report?

The reported per-share prices were $184.3348 for 84 shares (weighted average across $184.25 to $184.53), $185.3100 for 7 shares, $187.2514 for 35 shares (weighted average across $187.24 to $187.28), $189.5173 for 244 shares (weighted average across $188.895 to $189.87), $190.4867 for 449 shares (weighted average across $189.90 to $190.88), and $191.2576 for 62 shares (weighted average across $190.92 to $191.37).

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/21/2026 - 04:53 PM EDT Accepted by SEC EDGAR 10/21/2026 - 04:51 PM EDT Learn about SEC filing dates

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 CALIFORNIA 94404

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/20/2026

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

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

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

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	10/20/2026		S(1)		84	D	$184.3348(2)	58,604	D
Common Stock	10/20/2026		S(1)		7	D	$185.31	58,597	D
Common Stock	10/20/2026		S(1)		35	D	$187.2514(3)	58,562	D
Common Stock	10/20/2026		S(1)		244	D	$189.5173(4)	58,318	D
Common Stock	10/20/2026		S(1)		449	D	$190.4867(5)	57,869	D
Common Stock	10/20/2026		S(1)		62	D	$191.2576(6)	57,807	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 $184.25 to $184.53 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 $187.24 to $187.28 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.

4. The sale price represents the weighted average price of the shares sold ranging from $188.895 to $189.87 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.

5. The sale price represents the weighted average price of the shares sold ranging from $189.90 to $190.88 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.

6. The sale price represents the weighted average price of the shares sold ranging from $190.92 to $191.37 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	10/21/2026
	** 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.
* Form 4: SEC 1474 (03-26)