Qualys (QLYS) CEO sells 10,000 shares under Rule 10b5-1 plan

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

QUALYS, INC. CEO and President Sumedh S. Thakar reported open-market sales of a total of 10,000 shares of common stock on June 29, 2026, executed in three separate transactions at weighted average prices between about $125 and $128 per share. These trades were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 27, 2026, indicating they were scheduled in advance. Following the transactions, Thakar directly holds 226,686 shares of Qualys common stock.

Insider Trade Summary 10b5-1

Net Seller: 10,000 shares ($1,267,538)

Net Sell 3 txns

Insider Thakar Sumedh S

Role CEO & PRESIDENT

Sold 10,000 shs ($1.27M)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,700	$125.603	$339K
Sale	Common Stock	4,994	$126.9574	$634K
Sale	Common Stock	2,306	$127.6601	$294K

Holdings After Transaction: Common Stock — 233,986 shares (Direct, null)

Footnotes (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 February 27, 2026. The sale price represents the weighted average price of the shares sold ranging from $125.00 to $125.98 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 $126.15 to $127.14 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 $127.15 to $127.74 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: 10,000 shares Sale price 1: $125.6030 per share Sale price 2: $126.9574 per share +3 more

6 metrics

Shares sold 10,000 shares Total common stock sold on June 29, 2026

Sale price 1 $125.6030 per share Weighted average price for 2,700 shares sold

Sale price 2 $126.9574 per share Weighted average price for 4,994 shares sold

Sale price 3 $127.6601 per share Weighted average price for 2,306 shares sold

Shares held after trades 226,686 shares Direct ownership after June 29, 2026 sales

Number of sale transactions 3 transactions Open-market sales of common stock on June 29, 2026

Key Terms

Rule 10b5-1 trading plan, weighted average price, open-market sale

3 terms

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 by the Reporting Person on February 27, 2026."

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 $125.00 to $125.98 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.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/30/2026 - 04:22 PM Accepted by SEC EDGAR 06/30/2026 - 04:21 PM

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).

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^*

Thakar Sumedh S

(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)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	CEO & PRESIDENT

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/29/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/29/2026		S⁽¹⁾		2,700	D	$125.603⁽²⁾	233,986	D
Common Stock	06/29/2026		S⁽¹⁾		4,994	D	$126.9574⁽³⁾	228,992	D
Common Stock	06/29/2026		S⁽¹⁾		2,306	D	$127.6601⁽⁴⁾	226,686	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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 February 27, 2026.

2. The sale price represents the weighted average price of the shares sold ranging from $125.00 to $125.98 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 $126.15 to $127.14 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 $127.15 to $127.74 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 Posey by power of attorney for Sumedh S. Thakar	06/30/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What did Qualys (QLYS) CEO Sumedh Thakar report in this Form 4?

Qualys CEO Sumedh Thakar reported selling 10,000 shares of common stock in three open-market transactions on June 29, 2026. These trades were executed under a pre-arranged Rule 10b5-1 trading plan and left him with 226,686 directly owned shares.

How many Qualys (QLYS) shares did the CEO sell and at what prices?

The CEO sold 10,000 Qualys shares across three transactions at weighted average prices of $125.6030, $126.9574 and $127.6601 per share. Footnotes note detailed price ranges between $125.00 and $127.74 per share for the individual trades.

Was the Qualys (QLYS) CEO’s stock sale part of a Rule 10b5-1 plan?

Yes. The filing states the sale was effected under a Rule 10b5-1 trading plan adopted on February 27, 2026. Such plans allow insiders to schedule trades in advance, helping separate routine portfolio activity from discretionary market-timing decisions.

How many Qualys (QLYS) shares does the CEO hold after these sales?

After these transactions, CEO Sumedh Thakar directly owns 226,686 shares of Qualys common stock. This figure comes from the Form 4’s post-transaction ownership column, which reflects his remaining direct position following the 10,000 shares sold.

How many separate transactions were reported in this Qualys (QLYS) Form 4?

The Form 4 shows three separate open-market sale transactions of Qualys common stock on June 29, 2026. Each line item lists the number of shares sold, a specific weighted average sale price, and references footnotes that provide the detailed price ranges.