// company-profile

Marketaxess Holdings Inc

MKTX
ExchangeNasdaqSectorSecurity Brokers, Dealers & Flotation CompaniesFilings128Insiders25
// api This Marketaxess Holdings Inc insider-trading data is served live by the Form4API insider trading API. Get the same data via API.

// activity-summary

Recent insider activity is bullish. Over the last 30 days, 11 insiders purchased shares versus 2 sales. Buying was led by Chwick Jane.

// 90-day insight

Over the last 90 days, Marketaxess Holdings Inc insiders bought $0 (12 transactions) and sold $144K (5 transactions).

  • Most active insider: Pintoff Scott with 3 transactions totaling $43K.
  • Largest single sale: $60K by CONCANNON CHRISTOPHER R on Apr 3, 2026.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Marketaxess Holdings Inc as of 2026-03-31

— stable
Total reported AUM
$5.55B
QoQ change
-0.2%
Reporting period
2026-03-31
#1
PRIMECAP MANAGEMENT CO/CA/
CIK 763212
$552.2M
3.3M shares
#2
BlackRock, Inc.
CIK 2012383
$499.9M
3.0M shares
#3
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
$436.5M
2.6M shares

Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 18, 2026HERNANDEZ CARLOS MAURICIOMKTX
Gift
10,708$0.00$0K
Jun 18, 2026HERNANDEZ CARLOS MAURICIOMKTX
Gift
10,708$0.00$0K
Jun 10, 2026Chwick JaneMKTX
Award
1,390$0.00$0K
Jun 10, 2026Cifu Douglas AMKTX
Award
1,390$0.00$0K
Jun 10, 2026Gibson KourtneyMKTX
Award
1,390$0.00$0K

45 more transactions hidden

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