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person · Reporting owner

Thakar Sumedh S

Disclosed activity across 1 company

Tapewire entity
23018
SEC CIK
0001558242

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
QUALYS, INC.QLYS · Entity 1519Director · CEO & PRESIDENTOctober 14, 2026October 15, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

QUALYS, INC.

Report date October 14, 2026 · Filed October 15, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect177,138 Ending reported balance After 2026-10-14 transaction · row 5
5 source rows · reconciled sequence

Row 1 · 2026-10-14 · Sale · Disposed 400 · Balance 179,938

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 27, 2026.

F2: The sale price represents the weighted average price of the shares sold ranging from $187.64 to $188.18 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.

Row 2 · 2026-10-14 · Sale · Disposed 1,500 · Balance 178,438

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 27, 2026.

F3: The sale price represents the weighted average price of the shares sold ranging from $188.79 to $189.77 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.

Row 3 · 2026-10-14 · Sale · Disposed 400 · Balance 178,038

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 27, 2026.

F4: The sale price represents the weighted average price of the shares sold ranging from $189.85 to $190.11 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.

Row 4 · 2026-10-14 · Sale · Disposed 500 · Balance 177,538

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 27, 2026.

F5: The sale price represents the weighted average price of the shares sold ranging from $192.43 to $193.41 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.

Row 5 · 2026-10-14 · Sale · Disposed 400 · Balance 177,138

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 27, 2026.

F6: The sale price represents the weighted average price of the shares sold ranging from $194.01 to $194.54 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.

Filing footnotes · ownership attribution and instrument terms

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 27, 2026.

F2: The sale price represents the weighted average price of the shares sold ranging from $187.64 to $188.18 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.

F3: The sale price represents the weighted average price of the shares sold ranging from $188.79 to $189.77 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 $189.85 to $190.11 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.

F5: The sale price represents the weighted average price of the shares sold ranging from $192.43 to $193.41 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 $194.01 to $194.54 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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 14, 2024 Filed Mar 18, 2024 20:40 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 143 $171.93 $24,585.66
Disclosure

SEC source: 0001415889-24-008284 · form4-03182024_080323.xml · nonDerivative · entry 6

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,481

F1 · kind: 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 28, 2023.

F6 · price: The sale price represents the weighted average price of the shares sold ranging from $171.82 to $171.95 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 with the range set forth in this Form 4.

Read SEC document
March 14, 2024 Filed Mar 18, 2024 20:40 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 243 $169.07 $41,083.28
Disclosure

SEC source: 0001415889-24-008284 · form4-03182024_080323.xml · nonDerivative · entry 5

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,624

F1 · kind: 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 28, 2023.

F5 · price: The sale price represents the weighted average price of the shares sold ranging from $169.03 to $169.10 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 with the range set forth in this Form 4.

Read SEC document
March 14, 2024 Filed Mar 18, 2024 20:40 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,405 $168.48 $236,715.81
Disclosure

SEC source: 0001415889-24-008284 · form4-03182024_080323.xml · nonDerivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,867

F1 · kind: 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 28, 2023.

F4 · price: The sale price represents the weighted average price of the shares sold ranging from $167.89 to $168.87 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 with the range set forth in this Form 4.

Read SEC document
March 14, 2024 Filed Mar 18, 2024 20:40 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,447 $167.16 $241,875.02
Disclosure

SEC source: 0001415889-24-008284 · form4-03182024_080323.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 196,272

F1 · kind: 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 28, 2023.

F3 · price: The sale price represents the weighted average price of the shares sold ranging from $166.65 to $167.54 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 with the range set forth in this Form 4.

Read SEC document
March 14, 2024 Filed Mar 18, 2024 20:40 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 882 $165.91 $146,329.71
Disclosure

SEC source: 0001415889-24-008284 · form4-03182024_080323.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 197,719

F1 · kind: 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 28, 2023.

F2 · price: The sale price represents the weighted average price of the shares sold ranging from $165.64 to $166.11 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 with the range set forth in this Form 4.

Read SEC document
March 14, 2024 Filed Mar 18, 2024 20:40 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionCommon Stock 3,250 $30.58 $99,385.00
Disclosure

SEC source: 0001415889-24-008284 · form4-03182024_080323.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 198,601

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 21:19 UTC QUALYS, INC. QLYS · Entity 1519 GrantCommon Stock 108 $126.25 $13,635.00
Disclosure

SEC source: 0001415889-24-004119 · form4-02162024_090234.xml · nonDerivative · entry 5

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 195,351

F5 · shares: These shares were acquired on February 15, 2024 through the Issuer's Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

Read SEC document
February 14, 2024 Filed Feb 16, 2024 21:19 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionStock Option (right to buy) · Derivative 3,250 $30.58 Strike: $30.58 $99,385.00
Disclosure

SEC source: 0001415889-24-004119 · form4-02162024_090234.xml · derivative · entry 6

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,411

Underlying: Common Stock · 3,250 shares

Expires 2024-10-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

F6 · derivative.exercise_date: This option is fully vested and immediately exercisable.

Read SEC document
February 14, 2024 Filed Feb 16, 2024 21:19 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 286 $171.42 $49,026.06
Disclosure

SEC source: 0001415889-24-004119 · form4-02162024_090234.xml · nonDerivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 195,243

F1 · kind: 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 28, 2023.

F4 · price: The sale price represents the weighted average price of the shares sold ranging from $171.30 to $172.05 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 with the range set forth in this Form 4.

Read SEC document
February 14, 2024 Filed Feb 16, 2024 21:19 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 2,599 $170.27 $442,542.65
Disclosure

SEC source: 0001415889-24-004119 · form4-02162024_090234.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 195,529

F1 · kind: 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 28, 2023.

F3 · price: The sale price represents the weighted average price of the shares sold ranging from $169.92 to $170.80 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 with the range set forth in this Form 4.

Read SEC document
February 14, 2024 Filed Feb 16, 2024 21:19 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,235 $169.47 $209,291.00
Disclosure

SEC source: 0001415889-24-004119 · form4-02162024_090234.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 198,128

F1 · kind: 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 28, 2023.

F2 · price: The sale price represents the weighted average price of the shares sold ranging from $168.92 to $169.80 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 with the range set forth in this Form 4.

Read SEC document
February 14, 2024 Filed Feb 16, 2024 21:19 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionCommon Stock 3,250 $30.58 $99,385.00
Disclosure

SEC source: 0001415889-24-004119 · form4-02162024_090234.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & PRESIDENT

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 199,363

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

Read SEC document
February 05, 2024 Filed Feb 7, 2024 22:12 UTC QUALYS, INC. QLYS · Entity 1519 Tax withholdingCommon Stock 7,517 $168.24 $1,264,660.08
Disclosure

SEC source: 0001209191-24-002956 · doc4.xml · nonDerivative · entry 6

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 196,113

F6 · shares: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of performance restricted stock units awarded to the Reporting Person on October 27, 2022.

Read SEC document
February 05, 2024 Filed Feb 7, 2024 22:12 UTC QUALYS, INC. QLYS · Entity 1519 GrantCommon Stock 14,831 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-002956 · doc4.xml · nonDerivative · entry 5

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 203,630

F5 · shares: Represents the acquisition of shares upon the determination of the Board of Directors of the Issuer that the performance conditions were met with respect to performance shares awards granted to the Reporting Person on October 27, 2022.

Read SEC document
February 05, 2024 Filed Feb 7, 2024 22:12 UTC QUALYS, INC. QLYS · Entity 1519 Tax withholdingCommon Stock 6,486 $168.24 $1,091,204.64
Disclosure

SEC source: 0001209191-24-002956 · doc4.xml · nonDerivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 188,799

F4 · shares: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of performance restricted stock units awarded to the Reporting Person on October 28, 2021.

Read SEC document
February 05, 2024 Filed Feb 7, 2024 22:12 UTC QUALYS, INC. QLYS · Entity 1519 GrantCommon Stock 12,797 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-002956 · doc4.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 195,285

F3 · shares: Represents the acquisition of shares upon the determination of the Board of Directors of the Issuer that the performance conditions were met with respect to performance shares awards granted to the Reporting Person on October 28, 2021.

Read SEC document
February 05, 2024 Filed Feb 7, 2024 22:12 UTC QUALYS, INC. QLYS · Entity 1519 Tax withholdingCommon Stock 7,098 $168.24 $1,194,167.52
Disclosure

SEC source: 0001209191-24-002956 · doc4.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,488

F2 · shares: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of performance restricted stock units awarded to the Reporting Person on April 27, 2021.

Read SEC document
February 05, 2024 Filed Feb 7, 2024 22:12 UTC QUALYS, INC. QLYS · Entity 1519 GrantCommon Stock 14,005 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-002956 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,586

F1 · shares: Represents the acquisition of shares upon the determination of the Board of Directors of the Issuer that the performance conditions were met with respect to performance shares awards granted to the Reporting Person on April 27, 2021.

Read SEC document
February 01, 2024 Filed Feb 5, 2024 23:21 UTC QUALYS, INC. QLYS · Entity 1519 Tax withholdingCommon Stock 6,632 $190.39 $1,262,666.48
Disclosure

SEC source: 0001209191-24-002833 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,581

F1 · shares: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

Read SEC document
January 16, 2024 Filed Jan 18, 2024 21:17 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionStock Option (right to buy) · Derivative 3,250 $30.58 Strike: $30.58 $99,385.00
Disclosure

SEC source: 0001209191-24-001841 · doc4.xml · derivative · entry 5

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,661

Underlying: Common Stock · 3,250 shares

Expires 2024-10-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

F6 · derivative.exercise_date: This option is fully vested and immediately exercisable.

Read SEC document
January 16, 2024 Filed Jan 18, 2024 21:17 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 372 $193.62 $72,027.01
Disclosure

SEC source: 0001209191-24-001841 · doc4.xml · nonDerivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 182,213

F1 · kind: 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 28, 2023.

F5 · price: The sale price represents the weighted average price of the shares sold ranging from $193.52 to $193.70 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.

Read SEC document
January 16, 2024 Filed Jan 18, 2024 21:17 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 736 $192.67 $141,803.06
Disclosure

SEC source: 0001209191-24-001841 · doc4.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 182,585

F1 · kind: 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 28, 2023.

F4 · price: The sale price represents the weighted average price of the shares sold ranging from $192.37 to $193.06 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.

Read SEC document
January 16, 2024 Filed Jan 18, 2024 21:17 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 3,897 $191.79 $747,404.85
Disclosure

SEC source: 0001209191-24-001841 · doc4.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 183,321

F1 · kind: 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 28, 2023.

F3 · price: The sale price represents the weighted average price of the shares sold ranging from $191.34 to $192.30 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.

Read SEC document
January 16, 2024 Filed Jan 18, 2024 21:17 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionCommon Stock 3,250 $30.58 $99,385.00
Disclosure

SEC source: 0001209191-24-001841 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,218

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

F2 · balance_after: On December 18, 2023, the Reporting Person filed a Form 4 that contained a scrivener's error that resulted in the number of shares beneficially owned by the Reporting Person to be understated by 572 shares. That error has been corrected in this Form 4.

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December 14, 2023 Filed Dec 18, 2023 21:27 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionStock Option (right to buy) · Derivative 3,250 $30.58 Strike: $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-058963 · doc4.xml · derivative · entry 5

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,911

Underlying: Common Stock · 3,250 shares

Expires 2024-10-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

F5 · derivative.exercise_date: This option is fully vested and immediately exercisable.

Read SEC document
December 14, 2023 Filed Dec 18, 2023 21:27 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,478 $195.34 $288,709.12
Disclosure

SEC source: 0001209191-23-058963 · doc4.xml · nonDerivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 183,396

F1 · kind: 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 28, 2023.

F4 · price: The sale price represents the weighted average price of the shares sold ranging from $195.13 to $195.66 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.

Read SEC document
December 14, 2023 Filed Dec 18, 2023 21:27 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 2,681 $194.73 $522,063.89
Disclosure

SEC source: 0001209191-23-058963 · doc4.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 185,446

F1 · kind: 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 28, 2023.

F3 · price: The sale price represents the weighted average price of the shares sold ranging from $194.12 to $195.11 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.

Read SEC document
December 14, 2023 Filed Dec 18, 2023 21:27 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 845 $193.59 $163,587.01
Disclosure

SEC source: 0001209191-23-058963 · doc4.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 188,127

F1 · kind: 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 28, 2023.

F2 · price: The sale price represents the weighted average price of the shares sold ranging from $193.06 to $194.02 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.

Read SEC document
December 14, 2023 Filed Dec 18, 2023 21:27 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionCommon Stock 3,250 $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-058963 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 188,972

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

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November 14, 2023 Filed Nov 16, 2023 21:19 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionStock Option (right to buy) · Derivative 3,250 $30.58 Strike: $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-055519 · doc4.xml · derivative · entry 6

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,161

Underlying: Common Stock · 3,250 shares

Expires 2024-10-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

F6 · derivative.exercise_date: This option is fully vested and immediately exercisable.

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November 14, 2023 Filed Nov 16, 2023 21:19 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,576 $176.44 $278,068.49
Disclosure

SEC source: 0001209191-23-055519 · doc4.xml · nonDerivative · entry 5

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 185,722

F1 · kind: 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 28, 2023.

F5 · price: The sale price represents the weighted average price of the shares sold ranging from $176.03 to $176.78 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.

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November 14, 2023 Filed Nov 16, 2023 21:19 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,826 $175.30 $320,091.77
Disclosure

SEC source: 0001209191-23-055519 · doc4.xml · nonDerivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,298

F1 · kind: 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 28, 2023.

F4 · price: The sale price represents the weighted average price of the shares sold ranging from $174.90 to $175.88 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.

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November 14, 2023 Filed Nov 16, 2023 21:19 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,107 $173.89 $192,497.34
Disclosure

SEC source: 0001209191-23-055519 · doc4.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 189,124

F1 · kind: 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 28, 2023.

F3 · price: The sale price represents the weighted average price of the shares sold ranging from $173.70 to $174.43 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.

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November 14, 2023 Filed Nov 16, 2023 21:19 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 495 $172.80 $85,537.83
Disclosure

SEC source: 0001209191-23-055519 · doc4.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 190,231

F1 · kind: 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 28, 2023.

F2 · price: The sale price represents the weighted average price of the shares sold ranging from $172.59 to $173.17 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.

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November 14, 2023 Filed Nov 16, 2023 21:19 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionCommon Stock 3,250 $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-055519 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 190,726

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

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November 01, 2023 Filed Nov 2, 2023 20:54 UTC QUALYS, INC. QLYS · Entity 1519 Tax withholdingCommon Stock 7,991 $151.95 $1,214,232.45
Disclosure

SEC source: 0001209191-23-054175 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,476

F1 · shares: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

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October 26, 2023 Filed Oct 30, 2023 21:50 UTC QUALYS, INC. QLYS · Entity 1519 GrantCommon Stock 45,551 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-053886 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 195,467

F1 · shares: The reported securities represent restricted stock units which vest quarterly in equal installments over four years after November 1, 2023, subject to the Reporting Person's continued service through each vesting date.

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October 16, 2023 Filed Oct 18, 2023 20:13 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionStock Option (right to buy) · Derivative 3,250 $30.58 Strike: $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-053071 · doc4.xml · derivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,411

Underlying: Common Stock · 3,250 shares

Expires 2024-10-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

F4 · derivative.exercise_date: This option is fully vested and immediately exercisable.

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October 16, 2023 Filed Oct 18, 2023 20:13 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 761 $163.10 $124,115.83
Disclosure

SEC source: 0001209191-23-053071 · doc4.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 149,916

F1 · kind: 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 28, 2023.

F3 · price: The sale price represents the weighted average price of the shares sold ranging from $162.95 to $163.40 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.

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October 16, 2023 Filed Oct 18, 2023 20:13 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 4,244 $162.53 $689,787.08
Disclosure

SEC source: 0001209191-23-053071 · doc4.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 150,677

F1 · kind: 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 28, 2023.

F2 · price: The sale price represents the weighted average price of the shares sold ranging from $161.95 to $162.94 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.

Read SEC document
October 16, 2023 Filed Oct 18, 2023 20:13 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionCommon Stock 3,250 $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-053071 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 154,921

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

Read SEC document
September 14, 2023 Filed Sep 18, 2023 21:58 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionStock Option (right to buy) · Derivative 3,250 $30.58 Strike: $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-049798 · doc4.xml · derivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,661

Underlying: Common Stock · 3,250 shares

Expires 2024-10-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

F4 · derivative.exercise_date: This option is fully vested and immediately exercisable.

Read SEC document
September 14, 2023 Filed Sep 18, 2023 21:58 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 432 $152.99 $66,093.28
Disclosure

SEC source: 0001209191-23-049798 · doc4.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 151,671

F1 · kind: 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 28, 2023.

F3 · price: The sale price represents the weighted average price of the shares sold ranging from $152.92 to $153.06 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.

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September 14, 2023 Filed Sep 18, 2023 21:58 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 4,571 $152.62 $697,604.99
Disclosure

SEC source: 0001209191-23-049798 · doc4.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 152,103

F1 · kind: 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 28, 2023.

F2 · price: The sale price represents the weighted average price of the shares sold ranging from $151.91 to $152.90 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.

Read SEC document
September 14, 2023 Filed Sep 18, 2023 21:58 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionCommon Stock 3,250 $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-049798 · doc4.xml · nonDerivative · entry 1

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 156,674

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

Read SEC document
August 15, 2023 Filed Aug 16, 2023 21:11 UTC QUALYS, INC. QLYS · Entity 1519 GrantCommon Stock 28 $99.26 $2,779.28
Disclosure

SEC source: 0001209191-23-046059 · doc4.xml · nonDerivative · entry 5

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 153,424

F5 · shares: These shares were acquired on August 15, 2023 through the Issuer's Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

Read SEC document
August 14, 2023 Filed Aug 16, 2023 21:11 UTC QUALYS, INC. QLYS · Entity 1519 Exercise / conversionStock Option (right to buy) · Derivative 3,250 $30.58 Strike: $30.58 $99,385.00
Disclosure

SEC source: 0001209191-23-046059 · doc4.xml · derivative · entry 6

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,911

Underlying: Common Stock · 3,250 shares

Expires 2024-10-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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 28, 2023.

F6 · derivative.exercise_date: This option is fully vested and immediately exercisable.

Read SEC document
August 14, 2023 Filed Aug 16, 2023 21:11 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,415 $152.31 $215,521.62
Disclosure

SEC source: 0001209191-23-046059 · doc4.xml · nonDerivative · entry 4

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 153,396

F1 · kind: 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 28, 2023.

F4 · price: The sale price represents the weighted average price of the shares sold ranging from $152.13 to $153.11 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.

Read SEC document
August 14, 2023 Filed Aug 16, 2023 21:11 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,844 $151.81 $279,929.16
Disclosure

SEC source: 0001209191-23-046059 · doc4.xml · nonDerivative · entry 3

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 154,811

F1 · kind: 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 28, 2023.

F3 · price: The sale price represents the weighted average price of the shares sold ranging from $151.13 to $152.12 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.

Read SEC document
August 14, 2023 Filed Aug 16, 2023 21:11 UTC QUALYS, INC. QLYS · Entity 1519 SaleCommon Stock 1,744 $150.79 $262,979.85
Disclosure

SEC source: 0001209191-23-046059 · doc4.xml · nonDerivative · entry 2

Thakar Sumedh S · CIK 0001558242 · Director · CEO & President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 156,655

F1 · kind: 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 28, 2023.

F2 · price: The sale price represents the weighted average price of the shares sold ranging from $150.25 to $151.06 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.