Sumedh S. Thakar - 15 Dec 2025 Form 4 Insider Report for QUALYS, INC. (QLYS)

Role
CEO & PRESIDENT, Director
Signature
/s/ Bruce Posey by power of attorney for Sumedh S. Thakar
Issuer symbol
QLYS
Transactions as of
15 Dec 2025
Net transactions value
-$1,084,411
Form type
4
Filing time
16 Dec 2025, 18:05:24 UTC
Previous filing
17 Nov 2025
Next filing
16 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Thakar Sumedh S CEO & PRESIDENT, Director C/O QUALYS, INC., 919 E. HILLSDALE BLVD., FOSTER CITY /s/ Bruce Posey by power of attorney for Sumedh S. Thakar 16 Dec 2025 0001558242

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction QLYS Common Stock Options Exercise $166,140 +6,500 +2.6% $25.56 261,300 15 Dec 2025 Direct F1
transaction QLYS Common Stock Sale $378,281 -2,600 -1% $145.49 258,700 15 Dec 2025 Direct F1, F2
transaction QLYS Common Stock Sale $307,296 -2,100 -0.81% $146.33 256,600 15 Dec 2025 Direct F1, F3
transaction QLYS Common Stock Sale $206,030 -1,400 -0.55% $147.16 255,200 15 Dec 2025 Direct F1, F4
transaction QLYS Common Stock Sale $184,371 -1,243 -0.49% $148.33 253,957 15 Dec 2025 Direct F1, F5
transaction QLYS Common Stock Sale $53,386 -357 -0.14% $149.54 253,600 15 Dec 2025 Direct F1, F6
transaction QLYS Common Stock Sale $30,021 -200 -0.08% $150.10 253,400 15 Dec 2025 Direct F1, F7
transaction QLYS Common Stock Sale $91,167 -600 -0.24% $151.94 252,800 15 Dec 2025 Direct F1, F8

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction QLYS Stock Option (right to buy) Options Exercise $0 -6,500 -100% $0.000000 0 15 Dec 2025 Common Stock 6,500 $25.56 Direct F9
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
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 February 26, 2025.
F2 The sale price represents the weighted average price of the shares sold ranging from $144.99 to $145.97 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.
F3 The sale price represents the weighted average price of the shares sold ranging from $146.01 to $146.99 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.
F4 The sale price represents the weighted average price of the shares sold ranging from $147.02 to $147.48 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.
F5 The sale price represents the weighted average price of the shares sold ranging from $148.04 to $149.00 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.
F6 The sale price represents the weighted average price of the shares sold ranging from $149.07 to $150.05 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.
F7 The sale price represents the weighted average price of the shares sold ranging from $150.10 to $150.11 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.
F8 The sale price represents the weighted average price of the shares sold ranging from $151.19 to $152.05 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.
F9 The option is fully vested and immediately exercisable.