MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

BlackRock, Inc.'s Holding History (CIK: 0002012383)

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

Q4 2025

Shares 3,746,472 Value ($000) $679,048 Avg Close $169.50 Range $154.80 - $183.58

Q3 2025

Shares 1,850,409 Value ($000) $322,434 Avg Close $193.45 Range $172.51 - $222.19

Q2 2025

Shares 2,649,886 Value ($000) $591,826 Avg Close $216.56 Range $190.86 - $229.08

Q1 2025

Shares 2,605,396 Value ($000) $563,677 Avg Close $206.23 Range $183.82 - $224.26

Q4 2024

Shares 3,163,885 Value ($000) $715,165 Avg Close $257.54 Range $220.08 - $289.94

Q3 2024

Shares 2,903,901 Value ($000) $743,979 Avg Close $228.65 Range $187.70 - $258.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,746,472	$679,048	$169.50	$154.80 - $183.58
Q3 2025	1,850,409	$322,434	$193.45	$172.51 - $222.19
Q2 2025	2,649,886	$591,826	$216.56	$190.86 - $229.08
Q1 2025	2,605,396	$563,677	$206.23	$183.82 - $224.26
Q4 2024	3,163,885	$715,165	$257.54	$220.08 - $289.94
Q3 2024	2,903,901	$743,979	$228.65	$187.70 - $258.10