Marketaxess Holdings (MKTX): Congress and insider trades
Who in Congress and inside the company traded MKTX, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Marketaxess Holdings (MKTX) is a listed stock on NASDAQ.
- 5 members of Congress filed 8 buys and 15 sells of MKTX, the latest published 2026-05-20 (20 May 2026).
- Insiders filed 0 open market buys worth $0 and 6 sells worth $1.1M, the latest filed 2026-09-11 (11 September 2026).
- Across 5 scored buys, Congress averaged -15.8% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to draw a conclusion.
- Data as of 2026-09-29 (29 September 2026).
Congress trades in MKTX
as of 2026-05-20| Filed | Member | Type | Size | Days to file | 90 day vs S&P |
|---|---|---|---|---|---|
| 20 May 2026 | Josh Gottheimer (D-NJ) | sell | 1K–15K | 40 | n/a |
| 14 Aug 2023 | Daniel S. Goldman (D-NY) | sell | 1K–15K | 32 | n/a |
| 22 May 2023 | Daniel S. Goldman (D-NY) | buy | 1K–15K | 39 | -16.4% |
| 7 Dec 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 33 | n/a |
| 7 Dec 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 34 | n/a |
| 10 Nov 2022 | Tommy Tuberville (R-AL) | sell | 1K–15K | 36 | n/a |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 18 | -10.1% |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 31 | -10.1% |
| 9 Feb 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 19 | n/a |
| 9 Feb 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 18 | n/a |
| 10 Jan 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 31 | -20.0% |
| 10 Jan 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 24 | -20.0% |
| 14 Dec 2021 | Josh Gottheimer (D-NJ) | sell | 1K–15K | 31 | n/a |
| 10 Nov 2021 | Ro Khanna (D-CA) | sell | 1K–15K | 33 | n/a |
| 15 Oct 2021 | Ro Khanna (D-CA) | sell | 1K–15K | 16 | n/a |
| 16 Sep 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 29 | -9.7% |
| 16 Sep 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 30 | -9.7% |
| 15 Jun 2021 | Susie Lee (D-NV) | sell | 1K–15K | 27 | n/a |
| 22 Apr 2021 | Josh Gottheimer (D-NJ) | sell | 1K–15K | 37 | n/a |
| 22 Apr 2021 | Josh Gottheimer (D-NJ) | sell | 1K–15K | 35 | n/a |
| 22 Apr 2021 | Josh Gottheimer (D-NJ) | sell | 1K–15K | 21 | n/a |
| 11 Feb 2021 | Susie Lee (D-NV) | buy | 1K–15K | 13 | -22.9% |
| 10 Dec 2020 | Josh Gottheimer (D-NJ) | sell | 1K–15K | 26 | n/a |
Nothing matches that search.
Insider trades in MKTX
as of 2026-09-11| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 11 Sep 2026 | Cruger William Frank Jr. | sell | 6,164 | $163.20 | $1.0M | n/a |
| 11 Sep 2026 | Pintoff Scott | sell | 100 | $163.32 | $16.3K | n/a |
| 10 Aug 2026 | Pintoff Scott | sell | 100 | $162.60 | $16.3K | n/a |
| 10 Jul 2026 | Pintoff Scott | sell | 100 | $115.12 | $11.5K | n/a |
| 10 Apr 2026 | Pintoff Scott | sell | 100 | $171.96 | $17.2K | n/a |
| 10 Mar 2026 | Pintoff Scott | sell | 100 | $184.93 | $18.5K | n/a |
Nothing matches that search.
Related pages
Frequently asked questions
Who has bought MKTX?
8 Congress buys by 5 members and 0 insider buys are on file. The tables on this page list every one.
Did buying MKTX after a disclosure beat the market?
Across 5 scored buys, Congress averaged -15.8% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to draw a conclusion. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.