Christopher R. Concannon - 15 Feb 2025 Form 4 Insider Report for MARKETAXESS HOLDINGS INC (MKTX)

Signature
/s/ Conor Colasurdo, as Attorney-in-Fact for Christopher R. Concannon
Issuer symbol
MKTX
Transactions as of
15 Feb 2025
Net transactions value
-$134,089
Form type
4
Filing time
18 Feb 2025, 17:48:25 UTC
Previous filing
31 Jan 2025
Next filing
17 Feb 2026

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 +6,202 +15% $0.000000 48,974 15 Feb 2025 Direct F1
transaction MKTX Common Stock, par value $0.003 per share Tax liability $134,089 -693 -1.4% $193.49 48,281 15 Feb 2025 Direct F2

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 +18,009 $0.000000 18,009 15 Feb 2025 Common Stock 18,009 $193.49 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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, 2026, 33% on February 15, 2027, and 33% on February 15, 2028.
F2 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.
F3 The stock options shall vest 34% on February 15, 2026, 33% on February 15, 2027, and 33% on February 15, 2028.

Remarks:

Exhibit 24-Power of Attorney