Antonio L. DeLise - 10 Aug 2021 Form 4 Insider Report for MARKETAXESS HOLDINGS INC (MKTX)

Role
Global Head of Corp. Dev.
Signature
/s/ Jason Edelstein, as Attorney-in-Fact for Antonio L. DeLise
Issuer symbol
MKTX
Transactions as of
10 Aug 2021
Net transactions value
-$1,654,529
Form type
4
Filing time
12 Aug 2021, 16:37:46 UTC
Previous filing
27 May 2021
Next filing
17 Aug 2021
SEC
View on sec.gov

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 Options Exercise $319,404 +3,092 +11% $103.30 31,691 10 Aug 2021 Direct
transaction MKTX Common Stock, par value $0.003 per share Options Exercise $242,647 +1,547 +4.9% $156.85 33,238 10 Aug 2021 Direct
transaction MKTX Common Stock, par value $0.003 per share Sale $166,369 -350 -1.1% $475.34 32,888 10 Aug 2021 Direct F1
transaction MKTX Common Stock, par value $0.003 per share Sale $733,764 -1,540 -4.7% $476.47 31,348 10 Aug 2021 Direct F2
transaction MKTX Common Stock, par value $0.003 per share Sale $763,762 -1,599 -5.1% $477.65 29,749 10 Aug 2021 Direct F3
transaction MKTX Common Stock, par value $0.003 per share Sale $311,266 -650 -2.2% $478.87 29,099 10 Aug 2021 Direct F4
transaction MKTX Common Stock, par value $0.003 per share Sale $72,170 -150 -0.52% $481.13 28,949 10 Aug 2021 Direct
transaction MKTX Common Stock, par value $0.003 per share Sale $169,250 -350 -1.2% $483.57 28,599 10 Aug 2021 Direct F5

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) Options Exercise $0 -3,092 -100% $0.000000* 0 10 Aug 2021 Common Stock 3,092 $103.30 Direct F6
transaction MKTX Stock Option (right to buy) Options Exercise $0 -1,547 -100% $0.000000* 0 10 Aug 2021 Common Stock 1,547 $156.85 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The transactions were executed in multiple trades at prices ranging from $475.20 to $476.17. 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.
F2 The transactions were executed in multiple trades at prices ranging from $476.23 to $477.16. 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 $477.39 to $478.05. 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 $478.50 to $479.47. 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.
F5 The transactions were executed in multiple trades at prices ranging from $483.11 to $483.81. 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 stock options were fully exercisable