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  4. [Form 4] QUALYS, INC. Insider Trading Activity

Qualys (QLYS) legal chief sells 865 shares under 10b5-1 trading plan

Filing Impact
(Neutral)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

QUALYS, INC. chief legal officer Bruce K. Posey reported selling 865 shares of Qualys common stock in multiple open-market transactions on June 22, 2026. The reported sale prices ranged roughly from the low $107 area to just above $112 per share, based on weighted average prices.

The filing notes these sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 21, 2025, indicating the trades were scheduled in advance rather than timed opportunistically. After these transactions, Posey continues to hold a direct ownership position in Qualys common stock.

Positive

  • None.

Negative

  • None.
Insider POSEY BRUCE K
Role CHIEF LEGAL OFFICER
Sold 865 shs ($95K)
Type Security Shares Price Value
Sale Common Stock 48 $107.4023 $5K
Sale Common Stock 465 $108.7971 $51K
Sale Common Stock 188 $109.8387 $21K
Sale Common Stock 41 $110.4832 $5K
Sale Common Stock 123 $111.7318 $14K
Holdings After Transaction: Common Stock — 65,388 shares (Direct, null)
Footnotes (1)
  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. The sale price represents the weighted average price of the shares sold ranging from $107.17 to $107.50 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. The sale price represents the weighted average price of the shares sold ranging from $108.37 to $109.34 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. The sale price represents the weighted average price of the shares sold ranging from $109.38 to $110.35 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. The sale price represents the weighted average price of the shares sold ranging from $110.41 to $110.54 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. The sale price represents the weighted average price of the shares sold ranging from $111.48 to $112.145 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.
Total shares sold 865 shares Aggregate open-market sales reported for June 22, 2026
Transaction price (block 1) $111.7318 per share Weighted average price for 123-share sale on June 22, 2026
Transaction price (block 2) $110.4832 per share Weighted average price for 41-share sale on June 22, 2026
Transaction price (block 3) $109.8387 per share Weighted average price for 188-share sale on June 22, 2026
Transaction price (block 4) $108.7971 per share Weighted average price for 465-share sale on June 22, 2026
Transaction price (block 5) $107.4023 per share Weighted average price for 48-share sale on June 22, 2026
Net shares sold -865 shares Net buy/sell shares from transaction summary
10b5-1 plan adoption date August 21, 2025 Date Bruce K. Posey adopted the trading plan
Rule 10b5-1 trading plan regulatory
"The sale transaction reported in this Form 4 was effected 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
"The sale price represents the weighted average price of the shares sold ranging from $107.17 to $107.50 per share."
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.
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Common Stock financial
"security_title": "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
Form 4 regulatory
"The sale transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan..."
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
CHIEF LEGAL OFFICER
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/22/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock06/22/2026S(1)48D$107.4023(2)65,388D
Common Stock06/22/2026S(1)465D$108.7971(3)64,923D
Common Stock06/22/2026S(1)188D$109.8387(4)64,735D
Common Stock06/22/2026S(1)41D$110.4832(5)64,694D
Common Stock06/22/2026S(1)123D$111.7318(6)64,571D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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 $107.17 to $107.50 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 $108.37 to $109.34 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 $109.38 to $110.35 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 $110.41 to $110.54 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 $111.48 to $112.145 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. Posey06/23/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Qualys (QLYS) report for Bruce K. Posey?

Qualys reported that Bruce K. Posey, its chief legal officer, sold 865 shares of common stock in multiple open-market transactions on June 22, 2026, at weighted average prices around $107–$112 per share, according to a Form 4 insider trading report.

At what prices did Bruce K. Posey sell Qualys (QLYS) shares?

Bruce K. Posey’s reported Qualys share sales used weighted average prices from about $107.40 to $111.73 per share, with detailed price ranges between approximately $107.17 and $112.145, as disclosed in the Form 4 filing’s individual transaction lines and footnotes.

How many Qualys (QLYS) shares did Bruce K. Posey sell in the latest Form 4?

The Form 4 filing shows Bruce K. Posey sold a total of 865 shares of Qualys common stock. These sales were split across five separate open-market transactions, each with its own weighted average sale price and reported share amount.

Were Bruce K. Posey’s Qualys (QLYS) share sales under a Rule 10b5-1 plan?

Yes. The Form 4 footnotes state the reported sale transaction was effected under a Rule 10b5-1 trading plan that Bruce K. Posey adopted on August 21, 2025, indicating the trades were pre-arranged rather than decided at the time of sale.

Does Bruce K. Posey still own Qualys (QLYS) shares after these sales?

Yes. The Form 4 tables list direct holdings of Qualys common stock remaining after each transaction, indicating Bruce K. Posey continues to directly own shares following the 865-share open-market sales reported for June 22, 2026.