Stephen P. Casper serves as Executive at MARKETAXESS HOLDINGS INC, where they oversee executive responsibilities. Since joining the company, Stephen P. Casper has executed 53 insider transactions totaling $3.8M, demonstrating a bearish approach to their equity position. Their most recent transaction on Sep 8, 2025 involved selling 1,600 shares valued at $298.5K.
Stephen P. Casper currently holds 43,208 shares of MARKETAXESS HOLDINGS INC (MKTX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Stephen P. Casper has been a net seller of MKTX stock. They have purchased $3.8K and sold $3.8M worth of shares.
Stephen P. Casper's most recent insider trade was on Sep 8, 2025, when they sold 1,600 shares at $186.59 per share.
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| $259.39 |
| Discretionary |
| Jun 7, 2024 | MKTX | $99.7K | Sale | 500 | $199.48 | Discretionary |
| Jun 5, 2024 | MKTX | $0 | Award | 781 | $N/A | Discretionary |
| Aug 28, 2023 | MKTX | $0 | Gift | 200 | $N/A | Discretionary |
| Jun 7, 2023 | MKTX | $0 | Award | 581 | $N/A | Discretionary |
| Jun 8, 2022 | MKTX | $0 | Award | 586 | $N/A | Discretionary |
| Aug 1, 2021 | MKTX | $0 | Award | 353 | $N/A | Discretionary |
| Mar 11, 2021 | MKTX | $0 | Gift | 2,000 | $N/A | Discretionary |
| Mar 11, 2021 | MKTX | $0 | Gift | 2,000 | $N/A | Discretionary |
| Dec 15, 2020 | MKTX | $416.2K | Sale | 750 | $554.96 | Discretionary |
| Aug 27, 2020 | MKTX | $250.0K | Sale | 500 | $500.00 | Discretionary |
| Jun 11, 2020 | MKTX | $0 | Award | 283 | $N/A | Discretionary |
| May 5, 2020 | MKTX | $96.2K | Sale | 200 | $480.98 | Discretionary |
| May 5, 2020 | MKTX | $671.8K | Sale | 1,400 | $479.86 | Discretionary |
| May 5, 2020 | MKTX | $95.6K | Sale | 200 | $477.84 | Discretionary |
| May 5, 2020 | MKTX | $95.3K | Sale | 200 | $476.53 | Discretionary |
| Sep 3, 2019 | MKTX | $402.8K | Sale | 1,000 | $402.82 | Discretionary |
| Jul 30, 2019 | MKTX | $0 | Award | 380 | $N/A | Discretionary |
| Jun 7, 2019 | MKTX | $34.3K | Option Exercise | 3,187 | $10.77 | Discretionary |
| Jun 7, 2019 | MKTX | $34.4K | Sale | 102 | $337.30 | Discretionary |
| Dec 12, 2018 | MKTX | $0 | Gift | 43,808 | $N/A | Discretionary |
| Dec 12, 2018 | MKTX | $0 | Gift | 43,808 | $N/A | Discretionary |
| Aug 8, 2018 | MKTX | $0 | Award | 702 | $N/A | Discretionary |
| Nov 29, 2017 | MKTX | $391.7K | Sale | 2,000 | $195.84 | Discretionary |
| Nov 29, 2017 | MKTX | $41.1K | Option Exercise | 4,225 | $9.72 | Discretionary |
| Aug 10, 2017 | MKTX | $0 | Award | 617 | $N/A | Discretionary |
| May 17, 2017 | MKTX | $42.5K | Sale | 230 | $184.70 | Discretionary |
| May 17, 2017 | MKTX | $42.5K | Option Exercise | 2,500 | $16.99 | Discretionary |
| Dec 29, 2016 | MKTX | $0 | Gift | 1,300 | $N/A | Discretionary |