MARKETAXESS HOLDINGS INC (MKTX) Stock
4 members of Congress disclosed 14 trades in MKTX since 2017: 5 purchases and 9 sales, most recently Josh Gottheimer (sale, Apr 9, 2026). 7 of the hedge funds AlphaScala tracks reported MKTX in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Citadel's at $54.67M. Company insiders reported 0 open-market buys and 4 sales on SEC Form 4 in the 90 days to Nov 6, 2026.
Which members of Congress traded MARKETAXESS HOLDINGS INC (MKTX)?
Most recent: Josh Gottheimer (sale, Apr 9, 2026); records start Aug 21, 2017.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| Josh Gottheimer D-NJ · House | 2026-04-09 | sale | $1k – $15k |
| Julie Johnson D-TX · House | 2025-02-12 | sale | $1k – $15k |
| Julie Johnson D-TX · House | 2025-01-15 | purchase | $1k – $15k |
| Dan Goldman D-NY · House | 2023-07-12 | sale | $1k – $15k |
| Dan Goldman D-NY · House | 2023-04-10 | purchase | $1k – $15k |
| Josh Gottheimer D-NJ · House | 2021-11-12 | sale | $1k – $15k |
| Susie Lee D-NV · House | 2021-05-18 | sale | $1k – $15k |
| Josh Gottheimer D-NJ · House | 2021-03-31 | partial sale | $1k – $15k |
From STOCK Act periodic transaction reports. House filings as of Nov 5, 2026.
See all MKTX political trades →Which hedge funds own MKTX?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Citadel Ken Griffin | 482K | $54.67M | +486% |
| Renaissance Technologies Jim Simons (founder) | 200K | $22.70M | +20% |
| Millennium Management Israel Englander | 110K | $12.44M | -90% |
| D.E. Shaw David Shaw | 48K | $5.44M | +1348% |
| Marshall Wace | 39K | $4.44M | NEW |
| Point72 Steve Cohen | 8K | $919.3K | -97% |
| Bridgewater Associates Ray Dalio | 7K | $797.2K | +25% |
13F holdings as of Jun 30, 2026
Explore all tracked funds →Are MARKETAXESS HOLDINGS INC insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Oct 12, 26 | Pintoff Scott | General Counsel and Secretary | SELL | 100 | $16K |
| Sep 10, 26 | Cruger William Frank Jr. | Director | SELL | 6.2K | $1.0M |
| Sep 10, 26 | Pintoff Scott | General Counsel and Secretary | SELL | 100 | $16K |
| Aug 10, 26 | Pintoff Scott | General Counsel and Secretary | SELL | 100 | $16K |
SEC Form 4 filings as of Nov 6, 2026
See cluster-buy signals across all tickers →MKTX price chart
Powered by TradingViewWhat does MARKETAXESS HOLDINGS INC do?
MarketAxess Holdings Inc. is a financial technology company that operates a leading electronic trading platform for the institutional fixed-income markets. The company enables institutional investors and broker-dealers to trade a diverse range of credit instruments, including corporate bonds, sovereign bonds, and other fixed-income securities. MarketAxess provides comprehensive market data and post-trade services that support the full trading lifecycle. The platform connects a robust network of market participants through automated trading solutions, intelligent data products, and various post-trade services. The company's Open Trading marketplace is widely regarded as the preferred all-to-all trading solution in global credit markets. MarketAxess serves clients across the Americas, Europe, Latin America, and Asia, and its technology is leveraged by over 2,000 firms for efficient fixed-income trading. Founded in 2000 and headquartered in New York, the company has established itself as a central infrastructure provider that enhances trading efficiency, diversifies liquidity pools, and delivers significant cost savings to market participants.