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Themelis Nicholas

Disclosed activity across 1 company

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129304
SEC CIK
0001296468

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MARKETAXESS HOLDINGS INCMKTX · Entity 3821Chief Information OfficerMarch 07, 2022March 09, 2022

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.

MARKETAXESS HOLDINGS INC

Report date March 07, 2022 · Filed March 09, 2022

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock, par value $0.003 per shareSEC Table I · non-derivativeDirect8,544 Ending reported balance After 2022-03-07 transaction · row 10
10 source rows · reconciled sequence

Row 1 · 2022-03-07 · Sale · Disposed 424 · Balance 10,120

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2: The transactions were executed in multiple trades at prices ranging from $357.90 to $358.70. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 2 · 2022-03-07 · Sale · Disposed 98 · Balance 10,022

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3: The transactions were executed in multiple trades at prices ranging from $358.98 to $359.47. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 3 · 2022-03-07 · Sale · Disposed 109 · Balance 9,913

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4: The transactions were executed in multiple trades at prices ranging from $360.74 to $361.21. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 4 · 2022-03-07 · Sale · Disposed 212 · Balance 9,701

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F5: The transactions were executed in multiple trades at prices ranging from $361.84 to $362.04. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 5 · 2022-03-07 · Sale · Disposed 8 · Balance 9,693

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F6: The transactions were executed in multiple trades at prices ranging from $365.05 to $365.18. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 6 · 2022-03-07 · Sale · Disposed 200 · Balance 9,493

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F7: The transactions were executed in multiple trades at prices ranging from $366.15 to $366.63. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 7 · 2022-03-07 · Sale · Disposed 315 · Balance 9,178

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F8: The transactions were executed in multiple trades at prices ranging from $367.27 to $367.79. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 8 · 2022-03-07 · Sale · Disposed 171 · Balance 9,007

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F9: The transactions were executed in multiple trades at prices ranging from $368.45 to $369.29. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 9 · 2022-03-07 · Sale · Disposed 325 · Balance 8,682

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F10: The transactions were executed in multiple trades at prices ranging from $369.94 to $370.72. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Row 10 · 2022-03-07 · Sale · Disposed 138 · Balance 8,544

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F11: The transactions were executed in multiple trades at prices ranging from $371.03 to $371.57. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Filing footnotes · ownership attribution and instrument terms

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2: The transactions were executed in multiple trades at prices ranging from $357.90 to $358.70. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F3: The transactions were executed in multiple trades at prices ranging from $358.98 to $359.47. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F4: The transactions were executed in multiple trades at prices ranging from $360.74 to $361.21. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F5: The transactions were executed in multiple trades at prices ranging from $361.84 to $362.04. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F6: The transactions were executed in multiple trades at prices ranging from $365.05 to $365.18. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F7: The transactions were executed in multiple trades at prices ranging from $366.15 to $366.63. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F8: The transactions were executed in multiple trades at prices ranging from $367.27 to $367.79. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F9: The transactions were executed in multiple trades at prices ranging from $368.45 to $369.29. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F10: The transactions were executed in multiple trades at prices ranging from $369.94 to $370.72. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

F11: The transactions were executed in multiple trades at prices ranging from $371.03 to $371.57. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

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
April 08, 2020 Filed Apr 10, 2020 14:30 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GiftCommon Stock, par value $0.003 per share 259 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-024119 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,192

Read SEC document
February 10, 2020 Filed Feb 12, 2020 16:18 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 4,000 $342.01 $1,368,040.00
Disclosure

SEC source: 0001209191-20-008724 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,451

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 11 $354.18 $3,895.98
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 9

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,451

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 173 $354.18 $61,273.14
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 8

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,462

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 234 $354.18 $82,878.12
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 7

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,635

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 228 $354.18 $80,753.04
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 6

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,869

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 226 $354.18 $80,044.68
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 5

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,097

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 199 $354.18 $70,481.82
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 4

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,323

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 158 $354.18 $55,960.44
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 3

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,522

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 2,122 $354.18 $751,569.96
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,680

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 16:25 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 2,829 $354.18 $1,001,975.22
Disclosure

SEC source: 0001209191-20-006328 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,802

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 29, 2020 Filed Jan 29, 2020 17:31 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GrantCommon Stock, par value $0.003 per share 830 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-005407 · doc4.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,631

F2 · price: Settlement of performance shares granted January 15, 2019 pursuant to the Company's 2012 Incentive Plan, which were settled based on the achievement by the Issuer of adjusted pre-tax operating income targets during the performance period and are payable in shares of restricted stock. The shares of restricted stock will vest in two equal installments on January 31, 2021 and January 31, 2022.

Read SEC document
January 29, 2020 Filed Jan 29, 2020 17:31 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GrantCommon Stock, par value $0.003 per share 44 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-005407 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,801

F1 · price: Settlement of performance shares granted January 22, 2016 pursuant to the Company's 2012 Incentive Plan, which were settled based on the achievement by the Issuer of adjusted pre-tax operating income targets during the performance period and are payable in shares of restricted stock. The shares of restricted stock will vest in two equal installments on January 31, 2020 and January 31, 2021.

Read SEC document
January 15, 2020 Filed Jan 17, 2020 16:34 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GrantCommon Stock, par value $0.003 per share 943 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-004023 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,757

F1 · price: Represents a grant of restricted stock units pursuant to the Company's 2012 Incentive Plan. The restricted stock units will vest in three installments of 34% on January 31, 2021, and 33% on each of January 31, 2022 and January 31, 2023.

Read SEC document
November 08, 2019 Filed Nov 12, 2019 17:24 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 1,200 $349.72 $419,664.00
Disclosure

SEC source: 0001209191-19-056102 · doc4.xml · nonDerivative · entry 3

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,814

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The transactions were executed in multiple trades at prices ranging from $349.35 to $350.00. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
November 08, 2019 Filed Nov 12, 2019 17:24 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 1,300 $348.60 $453,180.00
Disclosure

SEC source: 0001209191-19-056102 · doc4.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,014

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · price: The transactions were executed in multiple trades at prices ranging from $348.30 to $349.19. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
November 08, 2019 Filed Nov 12, 2019 17:24 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 1,500 $347.87 $521,805.00
Disclosure

SEC source: 0001209191-19-056102 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,314

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The transactions were executed in multiple trades at prices ranging from $347.29 to $348.27. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
August 08, 2019 Filed Aug 9, 2019 16:15 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 330 $349.36 $115,288.80
Disclosure

SEC source: 0001209191-19-045336 · doc4.xml · nonDerivative · entry 5

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,814

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F6 · price: The transactions were executed in multiple trades at prices ranging from $349.29 to $349.53. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
August 08, 2019 Filed Aug 9, 2019 16:15 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 1,120 $348.46 $390,275.20
Disclosure

SEC source: 0001209191-19-045336 · doc4.xml · nonDerivative · entry 4

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,144

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F5 · price: The transactions were executed in multiple trades at prices ranging from $348.08 to $349.02. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
August 08, 2019 Filed Aug 9, 2019 16:15 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 300 $347.10 $104,130.00
Disclosure

SEC source: 0001209191-19-045336 · doc4.xml · nonDerivative · entry 3

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,264

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The transactions were executed in multiple trades at prices ranging from $346.91 to $347.40. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
August 08, 2019 Filed Aug 9, 2019 16:15 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 500 $346.09 $173,045.00
Disclosure

SEC source: 0001209191-19-045336 · doc4.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,564

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · price: The transactions were executed in multiple trades at prices ranging from $345.90 to $346.59. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
August 08, 2019 Filed Aug 9, 2019 16:15 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 500 $345.14 $172,570.00
Disclosure

SEC source: 0001209191-19-045336 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,064

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The transactions were executed in multiple trades at prices ranging from $344.78 to $345.60. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
April 26, 2019 Filed Apr 29, 2019 16:02 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 1,489 $265.61 $395,494.78
Disclosure

SEC source: 0001209191-19-026408 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,564

F1 · price: The transactions were executed in multiple trades at prices ranging from $265.32 to $266.22. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

Read SEC document
February 21, 2019 Filed Feb 21, 2019 20:22 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GrantCommon Stock, par value $0.003 per share 12,260 $0.00 $0.00
Disclosure

SEC source: 0000899243-19-004472 · doc4.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,053

F1 · price: Settlement of performance shares granted January 22, 2016 pursuant to the Issuer's 2012 Incentive Plan, which were settled based on the achievement by the Issuer of adjusted pre-tax operating income targets during the performance period and are payable in shares of restricted stock. The shares of restricted stock will vest in two equal installments on January 31, 2020 and January 31, 2021.

Read SEC document
January 31, 2019 Filed Feb 4, 2019 16:12 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 233 $214.77 $50,041.41
Disclosure

SEC source: 0001012975-19-000113 · edgar.xml · nonDerivative · entry 7

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,793

F3 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2019 Filed Feb 4, 2019 16:12 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 158 $214.77 $33,933.66
Disclosure

SEC source: 0001012975-19-000113 · edgar.xml · nonDerivative · entry 6

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,026

F3 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2019 Filed Feb 4, 2019 16:12 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 198 $214.77 $42,524.46
Disclosure

SEC source: 0001012975-19-000113 · edgar.xml · nonDerivative · entry 5

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,184

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2019 Filed Feb 4, 2019 16:12 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 396 $214.77 $85,048.92
Disclosure

SEC source: 0001012975-19-000113 · edgar.xml · nonDerivative · entry 4

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,382

F3 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2019 Filed Feb 4, 2019 16:12 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 127 $214.77 $27,275.79
Disclosure

SEC source: 0001012975-19-000113 · edgar.xml · nonDerivative · entry 3

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,778

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2019 Filed Feb 4, 2019 16:12 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 323 $214.77 $69,370.71
Disclosure

SEC source: 0001012975-19-000113 · edgar.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,905

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis' tax withholding obligation upon the vesting of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2019 Filed Feb 4, 2019 16:12 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GrantCommon Stock, par value $0.003 per share 930 $0.00 $0.00
Disclosure

SEC source: 0001012975-19-000113 · edgar.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,228

F1 · price: Settlement of performance shares granted January 15, 2018 pursuant to the Issuer's 2012 Incentive Plan, which were settled based on the achievement by the Issuer of adjusted pre-tax operating income targets during the performance period and are payable in shares of restricted stock. The shares of restricted stock will vest in two equal installments on January 15, 2020 and January 15, 2021.

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January 15, 2019 Filed Jan 17, 2019 17:21 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GrantCommon Stock, par value $0.003 per share 1,402 $0.00 $0.00
Disclosure

SEC source: 0001012975-19-000078 · edgar.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,298

F1 · price: Represents a grant of restricted stock units pursuant to the Company's 2012 Incentive Plan. The restricted stock units will vest in three installments of 34% on January 31, 2020, and 33% on each of January 31, 2021 and January 31, 2022.

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August 14, 2018 Filed Aug 16, 2018 16:05 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 1,437 $187.01 $268,729.20
Disclosure

SEC source: 0001012975-18-001036 · edgar.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,896

F2 · price: The transactions were executed in multiple trades at prices ranging from $186.94 to $187.07. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

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August 14, 2018 Filed Aug 16, 2018 16:05 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 11,394 $186.45 $2,124,364.58
Disclosure

SEC source: 0001012975-18-001036 · edgar.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,333

F1 · price: The transactions were executed in multiple trades at prices ranging from $185.88 to $186.83. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

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March 09, 2018 Filed Mar 12, 2018 17:04 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 1,311 $219.42 $287,665.91
Disclosure

SEC source: 0001012975-18-000275 · edgar.xml · nonDerivative · entry 4

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,727

F4 · price: The transactions were executed in multiple trades at prices ranging from $219.085 to $219.82. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

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March 09, 2018 Filed Mar 12, 2018 17:04 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 990 $218.90 $216,711.69
Disclosure

SEC source: 0001012975-18-000275 · edgar.xml · nonDerivative · entry 3

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,038

F3 · price: The transactions were executed in multiple trades at prices ranging from $218.56 to $219.045. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

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March 09, 2018 Filed Mar 12, 2018 17:04 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 899 $218.16 $196,129.26
Disclosure

SEC source: 0001012975-18-000275 · edgar.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,028

F2 · price: The transactions were executed in multiple trades at prices ranging from $217.54 to $218.52. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

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March 09, 2018 Filed Mar 12, 2018 17:04 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 2,200 $216.95 $477,291.98
Disclosure

SEC source: 0001012975-18-000275 · edgar.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,927

F1 · price: The transactions were executed in multiple trades at prices ranging from $216.45 to $217.45. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

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January 31, 2018 Filed Feb 2, 2018 17:01 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GrantCommon Stock, par value $0.003 per share 809 Not disclosed Not disclosed
Disclosure

SEC source: 0001012975-18-000122 · edgar.xml · nonDerivative · entry 8

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,127

F3 · price: Settlement of performance shares granted January 15, 2017 pursuant to the Issuer's 2012 Incentive Plan, which were settled based on the achievement by the Issuer of adjusted pre-tax operating income targets during the performance period and are payable in shares of restricted stock. The shares of restricted stock will vest in two equal installments on January 31, 2019 and January 31, 2020.

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January 31, 2018 Filed Feb 2, 2018 17:01 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 162 $196.21 $31,786.02
Disclosure

SEC source: 0001012975-18-000122 · edgar.xml · nonDerivative · entry 7

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,318

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis 's tax withholding obligation upon the vesting of shares of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2018 Filed Feb 2, 2018 17:01 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 396 $196.21 $77,699.16
Disclosure

SEC source: 0001012975-18-000122 · edgar.xml · nonDerivative · entry 6

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,480

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis 's tax withholding obligation upon the vesting of shares of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2018 Filed Feb 2, 2018 17:01 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 1,340 $196.21 $262,921.40
Disclosure

SEC source: 0001012975-18-000122 · edgar.xml · nonDerivative · entry 5

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,876

F2 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis 's tax withholding obligation upon the vesting of shares of restricted stock units previously granted to Mr. Themelis.

Read SEC document
January 31, 2018 Filed Feb 2, 2018 17:01 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 127 $196.21 $24,918.67
Disclosure

SEC source: 0001012975-18-000122 · edgar.xml · nonDerivative · entry 4

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,216

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis 's tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2018 Filed Feb 2, 2018 17:01 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 323 $196.21 $63,375.83
Disclosure

SEC source: 0001012975-18-000122 · edgar.xml · nonDerivative · entry 3

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,343

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis 's tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2018 Filed Feb 2, 2018 17:01 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 352 $196.21 $69,065.92
Disclosure

SEC source: 0001012975-18-000122 · edgar.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,666

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis 's tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 31, 2018 Filed Feb 2, 2018 17:01 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Tax withholdingCommon Stock, par value $0.003 per share 1,094 $196.21 $214,653.74
Disclosure

SEC source: 0001012975-18-000122 · edgar.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,018

F1 · kind: Represents the surrender of shares to the Company to satisfy Mr. Themelis 's tax withholding obligation upon the vesting of shares of restricted stock previously granted to Mr. Themelis.

Read SEC document
January 15, 2018 Filed Jan 17, 2018 16:15 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 GrantCommon Stock, par value $0.003 per share 1,395 Not disclosed Not disclosed
Disclosure

SEC source: 0001012975-18-000068 · edgar.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,112

F1 · price: Represents a grant of restricted stock units pursuant to the Company's 2012 Incentive Plan. The restricted stock units will vest in three installments of 34% on January 31, 2019, and 33% on each of January 31, 2020 and January 31, 2021.

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November 02, 2017 Filed Nov 3, 2017 16:06 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 4,000 $0.00 Strike: $10.93 $0.00
Disclosure

SEC source: 0001012975-17-000811 · edgar.xml · derivative · entry 3

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,000 shares

Expires 2018-01-15

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.

F2 · derivative.exercise_date: The employee stock option is currently exercisable.

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November 02, 2017 Filed Nov 3, 2017 16:06 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 SaleCommon Stock, par value $0.003 per share 4,000 $176.40 $705,608.00
Disclosure

SEC source: 0001012975-17-000811 · edgar.xml · nonDerivative · entry 2

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,717

F1 · price: The transaction was executed in multiple trades at prices ranging from $176.35 to $176.53. The price above reflects the weighted average transaction price. Detailed information regarding the number of shares transacted at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.

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November 02, 2017 Filed Nov 3, 2017 16:06 UTC MARKETAXESS HOLDINGS INC MKTX · Entity 3821 Exercise / conversionCommon Stock, par value $0.003 per share 4,000 $10.93 $43,720.00
Disclosure

SEC source: 0001012975-17-000811 · edgar.xml · nonDerivative · entry 1

Themelis Nicholas · CIK 0001296468 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,717

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.

Read SEC document

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