Nicholas Themelis - 07 Sep 2021 Form 4 Insider Report for MARKETAXESS HOLDINGS INC (MKTX)

Signature
/s/ Jason Edelstein, as Attorney-in-Fact for Nicholas Themelis
Issuer symbol
MKTX
Transactions as of
07 Sep 2021
Transactions value $
-$923,075
Form type
4
Filing time
09 Sep 2021, 16:15:31 UTC
Previous filing
12 Aug 2021
Next filing
09 Dec 2021

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 Sale -$45.7K -100 -0.74% $456.85 13.5K 07 Sep 2021 Direct F1
transaction MKTX Common Stock, par value $0.003 per share Sale -$367K -800 -5.93% $458.58 12.7K 07 Sep 2021 Direct F1, F2
transaction MKTX Common Stock, par value $0.003 per share Sale -$230K -500 -3.94% $460.36 12.2K 07 Sep 2021 Direct F1, F3
transaction MKTX Common Stock, par value $0.003 per share Sale -$46.1K -100 -0.82% $461.31 12.1K 07 Sep 2021 Direct F1
transaction MKTX Common Stock, par value $0.003 per share Sale -$46.3K -100 -0.83% $463.33 12K 07 Sep 2021 Direct F1
transaction MKTX Common Stock, par value $0.003 per share Sale -$93.2K -200 -1.67% $466.01 11.8K 07 Sep 2021 Direct F1
transaction MKTX Common Stock, par value $0.003 per share Sale -$94.7K -200 -1.7% $473.40 11.6K 07 Sep 2021 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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 $458.00 to $458.93. 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 $460.00 to $460.82. 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.