MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

Clearbridge Investments, LLC's Holding History (CIK: 0001348883)

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

Q4 2018

Shares 231 Value ($000) $49 Avg Close $192.62 Range $159.95 - $215.45

Q2 2018

Shares 231 Value ($000) $46 Avg Close $192.09 Range $180.81 - $204.01

Q1 2018

Shares 231 Value ($000) $50 Avg Close $190.22 Range $171.07 - $212.71

Q4 2017

Shares 322 Value ($000) $65 Avg Close $174.10 Range $158.03 - $190.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	231	$49	$192.62	$159.95 - $215.45
Q2 2018	231	$46	$192.09	$180.81 - $204.01
Q1 2018	231	$50	$190.22	$171.07 - $212.71
Q4 2017	322	$65	$174.10	$158.03 - $190.10