MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

Principia Wealth Advisory, LLC's Holding History (CIK: 0002041436)

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

Q3 2025

Shares 166 Value ($000) $29 Avg Close $193.45 Range $172.51 - $222.19

Q2 2025

Shares 166 Value ($000) $37 Avg Close $216.56 Range $190.86 - $229.08

Q1 2025

Shares 165 Value ($000) $34 Avg Close $206.23 Range $183.82 - $224.26

Q4 2024

Shares 164 Value ($000) $37 Avg Close $257.54 Range $220.08 - $289.94

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	166	$29	$193.45	$172.51 - $222.19
Q2 2025	166	$37	$216.56	$190.86 - $229.08
Q1 2025	165	$34	$206.23	$183.82 - $224.26
Q4 2024	164	$37	$257.54	$220.08 - $289.94