How many insider trades does FilingIQ track for MKTX?

FilingIQ tracks 1,211 Form 4 insider transactions for MKTX (MARKETAXESS HOLDINGS INC), covering filings from Jan 14, 2015 onwards. 24 of those were filed in the last 90 days.

Are MKTX insiders net buyers or net sellers?

Across the full Form 4 history for MKTX, 9 transactions (1%) were open-market purchases and 495 (41%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does MKTX insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is MKTX in?

MARKETAXESS HOLDINGS INC (MKTX) is classified in the Financial Services sector, specifically Capital Markets, with a current market capitalisation of $6.82B.

MKTX insider trading

NasdaqGS Financial Services

MARKETAXESS HOLDINGS INC — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

1,211

Last 90 days

Buys / sells

1% / 41%

Market cap

$6.82B

About MARKETAXESS HOLDINGS INC

MarketAxess Holdings Inc., together with its subsidiaries, operates an electronic trading platform for institutional investor and broker-dealer firms in the United States, the United Kingdom, and internationally. The company offers trading technology to access liquidity on its platforms in U.S. high-grade bonds, U.S. high-yield bonds, emerging market debt, eurobonds, municipal bonds, U.S. government bonds, and other fixed-income securities; and executes bond trades between and among institutional investor and broker-dealer clients in an all-to-all anonymous trading environment for corporate bonds through its Open Trading protocols. It also provides automated and algorithmic trading solutions, such as X-Pro, a trading platform to combine trading protocols with its proprietary data and pre-trade analytics; and integrated and actionable data offerings, including CP+ and Axess All, a real-time pricing engine, including Auto-X and portfolio trading. In addition, the company offers various pre-and post-trade services, such as processing, trade matching, trade publication, regulatory transaction reporting, and market and reference data across a range of fixed-income and other products. MarketAxess Holdings Inc. was incorporated in 2000 and is headquartered in New York, New York.

Company website: www.marketaxess.com

MKTX insider activity at a glance

FilingIQ has scored 1,211 insider transactions for MKTX since Jan 14, 2015. The most recent filing in our index is dated May 11, 2026.

Across the full history, 9 open-market purchases and 495 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on MKTX insider trades is 57.5/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live MKTX trades on FilingIQ Raw filings on SEC EDGAR

Other Financial Services tickers with recent insider activity

BAC 353

BANK OF AMERICA CORP /DE/

RCG 255

RENN Fund, Inc.

WAL 242

WESTERN ALLIANCE BANCORPORATION

CINF 239

CINCINNATI FINANCIAL CORP

CRCL 178

Circle Internet Group, Inc.

TRUP 156

TRUPANION, INC.

PGC 154

PEAPACK GLADSTONE FINANCIAL CORP

SLDE 150

Slide Insurance Holdings, Inc.

13F funds holding MKTX

PROVIDA PENSION FUND ADMINISTRATOR

$122.61M · 2.2% of AUM

Stephens Investment Management Group LLC

$63.94M · 1.2% of AUM

RDST Capital LLC

$49.06M · 4.6% of AUM

Frequently asked

How many insider trades does FilingIQ track for MKTX?: FilingIQ tracks 1,211 Form 4 insider transactions for MKTX (MARKETAXESS HOLDINGS INC), covering filings from Jan 14, 2015 onwards. 24 of those were filed in the last 90 days.
Are MKTX insiders net buyers or net sellers?: Across the full Form 4 history for MKTX, 9 transactions (1%) were open-market purchases and 495 (41%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does MKTX insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is MKTX in?: MARKETAXESS HOLDINGS INC (MKTX) is classified in the Financial Services sector, specifically Capital Markets, with a current market capitalisation of $6.82B.

Methodology & sources

Every MKTX insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.