StockCIK 1278021

MARKETAXESS HOLDINGS INC (MKTX): Insider Trades and Fund Holdings

In the past 12 months, MARKETAXESS HOLDINGS INC insiders reported 0 open-market purchases worth $0 and 3 sales worth $1.04M; 2 of the sales were reported as made under a 10b5-1 trading plan.

0Insider buys, 12 months

$0Bought by insiders, 12 months

$1.04MSold by insiders, 12 months

2Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 13, 2026.

Recent MKTX insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 13	Oct 12	Scott PintoffGeneral Counsel	General Counsel	▼ SELL10b5-1	100	164.65	$16K	−0.9%	Form 4 ↗
Sep 11	Sep 10	William Frank Cruger JrDirector	Director	▼ SELL	6,164	163.20	$1.01M	−60%	Form 4 ↗
Sep 11	Sep 10	Scott PintoffGeneral Counsel	General Counsel	▼ SELL10b5-1	100	163.32	$16K	−0.9%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

Insider	Role	Buys	Bought	Sells	Sold	Latest
Scott Pintoff	General Counsel	0	$0	2	$33K	Oct 13, 2026
William Frank Cruger Jr	Director	0	$0	1	$1.01M	Sep 11, 2026

Tracked funds that report MKTX

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Renaissance Technologies	Q2 2026	200,000	$22.7M	0.03%	▲ +19.7%
Bridgewater Associates	Q2 2026	7,024	$797K	0.00%	▲ +25.2%

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →