Company profile
Marketaxess Holdings Inc Insider Trading
MKTXEvery SEC Form 4 insider trading filing for Marketaxess Holdings Inc (MKTX) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Security Brokers, Dealers & Flotation Companies
- CIK
- 0001278021
- Filings
- 132
- Insiders
- 25
- Last filing
- 2026-08-12
Activity summary
No discretionary insider buying or selling in the last 30 days. Of the 4 transactions filed, 1 was scheduled under a 10b5-1 plan and 3 were grants, option exercises or other non-open-market activity.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Marketaxess Holdings Inc insiders were net sellers in every quarter shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $13.6M.
90 day insight
Over the last 90 days, Marketaxess Holdings Inc insiders bought $0 (11 transactions) and sold $41K (1 transaction).
- Most active insider: Pintoff Scott with 3 transactions totaling $39K.
- Largest single sale: $41K by Fiszel Bieler Ilene on Jun 3, 2026.
- 75% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 12, 2026 | Portney Emily Hope | MKTX | Gift | 2,085 | — | — |
| Aug 12, 2026 | Portney Emily Hope | MKTX | Gift | 2,085 | — | — |
| Aug 10, 2026 | Pintoff Scott | MKTX | Sale10b5 | 100 | $162.60 | $16K |
| Aug 7, 2026 | Chwick Jane | MKTX | Gift | 606 | — | — |
| Jul 10, 2026 | Pintoff Scott | MKTX | Sale10b5 | 100 | $115.12 | $12K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Marketaxess Holdings Inc as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →