Casper Stephen P sold MARKETAXESS HOLDINGS INC ($MKTX) shares once on the open market in the last year, totaling about $299,000, with the most recent sale on September 8, 2025. His sales rank 7,568th among 11,678 insiders, below the average of $8.6 million per person and 6.4 transactions. He made no open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 8, 2025 | MARKETAXESS HOLDINGS INC | $MKTX | Casper Stephen P | Not found | S | Common Stock, par value $0.003 per share | 1600 | $186.59 | 53,193.0000 | 37,646,374 | 2.92% | 0.00% |
| June 4, 2025 | MARKETAXESS HOLDINGS INC | $MKTX | Casper Stephen P | Not found | A | Common Stock, par value $0.003 per share | 784 | $0.00 | 54,793.0000 | 37,646,374 | 1.45% | 0.00% |
| Sept. 6, 2024 | MARKETAXESS HOLDINGS INC | $MKTX | Casper Stephen P | Not found | S | Common Stock, par value $0.003 per share | 1000 | $259.39 | 54,009.0000 | 37,900,000 | 1.82% | 0.00% |
| June 7, 2024 | MARKETAXESS HOLDINGS INC | $MKTX | Casper Stephen P | Not found | S | Common Stock, par value $0.003 per share | 500 | $199.48 | 55,009.0000 | 37,900,000 | 0.90% | 0.00% |
| June 5, 2024 | MARKETAXESS HOLDINGS INC | $MKTX | Casper Stephen P | Not found | A | Common Stock, par value $0.003 per share | 781 | $0.00 | 55,509.0000 | 37,900,000 | 1.43% | 0.00% |
| Aug. 28, 2023 | MARKETAXESS HOLDINGS INC | $MKTX | Casper Stephen P | Director | G | Common Stock, par value $0.003 per share | 200 | $0.00 | 54,728.0000 | 37,648,000 | 0.36% | 0.00% |
| June 7, 2023 | MARKETAXESS HOLDINGS INC | $MKTX | Casper Stephen P | Director | A | Common Stock, par value $0.003 per share | 581 | $0.00 | 54,928.0000 | 37,648,000 | 1.07% | 0.00% |