MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

Tarbox Family Office, Inc.'s Holding History (CIK: 0001599603)

Note: Option positions (PUT/CALL) are excluded.

Q4 2020

Shares 6 Value ($000) $3 Avg Close $513.28 Range $445.05 - $571.70

Q3 2020

Shares 6 Value ($000) $3 Avg Close $465.37 Range $409.02 - $528.32

Q2 2020

Shares 6 Value ($000) $3 Avg Close $438.02 Range $297.02 - $495.82

Q1 2020

Shares 6 Value ($000) $2 Avg Close $327.01 Range $258.83 - $365.21

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	6	$3	$513.28	$445.05 - $571.70
Q3 2020	6	$3	$465.37	$409.02 - $528.32
Q2 2020	6	$3	$438.02	$297.02 - $495.82
Q1 2020	6	$2	$327.01	$258.83 - $365.21