CHRISTOPHER R. CONCANNON - 13 Feb 2026 Form 4 Insider Report for MARKETAXESS HOLDINGS INC (MKTX)

Role
Chief Executive Officer, Director
Signature
/s/ Patrick Wilson as Attorney-in-Fact for Christopher R. Concannon
Issuer symbol
MKTX
Transactions as of
13 Feb 2026
Net transactions value
-$469,206
Form type
4
Filing time
17 Feb 2026, 16:31:04 UTC
Previous filing
18 Feb 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
CONCANNON CHRISTOPHER R Chief Executive Officer, Director C/O MARKETAXESS HOLDINGS INC., 55 HUDSON YARDS, 15TH FLOOR, NEW YORK /s/ Patrick Wilson as Attorney-in-Fact for Christopher R. Concannon 17 Feb 2026 0001251713

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MKTX Common Stock, par value $0.003 per share Award $0 +1,696 +3.5% $0.000000 49,977 13 Feb 2026 Direct F1
transaction MKTX Common Stock, par value $0.003 per share Tax liability $155,326 -866 -1.7% $179.36 49,111 15 Feb 2026 Direct F2
transaction MKTX Common Stock, par value $0.003 per share Award $0 +6,588 +13% $0.000000 55,699 15 Feb 2026 Direct F3
transaction MKTX Common Stock, par value $0.003 per share Tax liability $313,880 -1,750 -3.1% $179.36 53,949 15 Feb 2026 Direct F4

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

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MKTX Stock Option (right to buy) Award $0 +21,736 $0.000000 21,736 15 Feb 2026 Common Stock 21,736 $179.36 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On February 13, 2026, the Compensation and Talent Committee of the Board of Directors of the Issuer certified the performance metrics relating to the performance stock units granted to the Reporting Person on February 15, 2023.
F2 Represents the surrender of shares to the Company to satisfy the Reporting Person's tax withholding obligation upon the vesting of the performance stock units.
F3 Represents a grant of restricted stock units pursuant to the Company's 2020 Equity Incentive Plan. The restricted stock units shall vest 34% on February 15, 2027, 33% on February 15, 2028, and 33% on February 15, 2029.
F4 Represents the surrender of shares to the Company to satisfy the Reporting Person's tax withholding obligation upon the vesting of restricted stock units previously granted to the Reporting Person.
F5 The stock options shall vest 34% on February 15, 2027, 33% on February 15, 2028, and 33% on February 15, 2029.