Christopher Concannon R.'s most recent trade in MarketAxess Holdings Inc. was a trade of 349 Common Stock, par value $0.003 per share done at an average price of $171.5 . Disclosure was reported to the exchange on April 3, 2026.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 171.46 per share. | 03 Apr 2026 | 349 | 53,600 (0%) | 0% | 171.5 | 59,840 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2025 | 18,009 | 18,009 | - | - | Stock Option (right to buy) | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2025 | 6,202 | 48,974 (0%) | 0% | 0 | Common Stock, par value $0.003 per share | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 193.49 per share. | 15 Feb 2025 | 693 | 48,281 (0%) | 0% | 193.5 | 134,089 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 29 Jan 2025 | 1,622 | 43,600 (0%) | 0% | 0 | Common Stock, par value $0.003 per share | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 217.77 per share. | 29 Jan 2025 | 585 | 43,015 (0%) | 0% | 217.8 | 127,395 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 217.77 per share. | 29 Jan 2025 | 243 | 42,772 (0%) | 0% | 217.8 | 52,918 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2024 | 11,503 | 11,503 | - | - | Stock Option (right to buy) | |
| MarketAxess Holdings Inc | Concannon R. Christopher | Director, Chief Executive Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2024 | 3,991 | 41,978 (0%) | 0% | 0 | Common Stock, par value $0.003 per share | |
| MarketAxess Holdings Inc | Christopher Concannon R. | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 274.33 per share. | 31 Jan 2024 | 459 | 37,987 (0%) | 0% | 274.3 | 125,917 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher Concannon R. | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 274.33 per share. | 31 Jan 2024 | 305 | 38,446 (0%) | 0% | 274.3 | 83,671 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Concannon Christopher R. | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 274.33 per share. | 31 Jan 2024 | 195 | 38,751 (0%) | 0% | 274.3 | 53,494 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | R. Christopher Concannon | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 265.93 per share. | 22 Jan 2024 | 5,077 | 42,988 (0%) | 0% | 265.9 | 1,350,127 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Concannon R. Christopher | Director, Chief Executive Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 265.93 per share. | 22 Jan 2024 | 4,042 | 38,946 (0%) | 0% | 265.9 | 1,074,889 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher Concannon R. | Director, Chief Executive Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Jan 2024 | 899 | 48,065 (0%) | 0% | 0 | Common Stock, par value $0.003 per share | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Purchase of securities on an exchange or from another person at price $ 238.05 per share. | 14 Aug 2023 | 2,203 | 45,607 (0%) | 0% | 238.0 | 524,424 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Purchase of securities on an exchange or from another person at price $ 239.26 per share. | 14 Aug 2023 | 900 | 46,507 (0%) | 0% | 239.3 | 215,334 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Purchase of securities on an exchange or from another person at price $ 240.16 per share. | 14 Aug 2023 | 600 | 47,107 (0%) | 0% | 240.2 | 144,096 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Purchase of securities on an exchange or from another person at price $ 236.49 per share. | 14 Aug 2023 | 404 | 43,404 (0%) | 0% | 236.5 | 95,542 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Purchase of securities on an exchange or from another person at price $ 235.10 per share. | 14 Aug 2023 | 104 | 43,000 (0%) | 0% | 235.1 | 24,450 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Purchase of securities on an exchange or from another person at price $ 240.90 per share. | 14 Aug 2023 | 59 | 47,166 (0%) | 0% | 240.9 | 14,213 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Apr 2023 | 5,039 | 5,039 | - | - | Performance Stock Units | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, Chief Executive Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Apr 2023 | 2,729 | 42,896 (0%) | 0% | 0 | Common Stock, par value $0.003 per share | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2023 | 5,713 | 5,713 | - | - | Stock Option (right to buy) | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2023 | 1,967 | 40,167 (0%) | 0% | 0 | Common Stock, par value $0.003 per share | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 363.85 per share. | 31 Jan 2023 | 1,528 | 38,708 (0%) | 0% | 363.9 | 555,963 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 363.85 per share. | 31 Jan 2023 | 512 | 40,236 (0%) | 0% | 363.8 | 186,291 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 363.85 per share. | 31 Jan 2023 | 313 | 38,200 (0%) | 0% | 363.8 | 113,885 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 363.85 per share. | 31 Jan 2023 | 195 | 38,513 (0%) | 0% | 363.9 | 70,951 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 18 Jan 2023 | 2,993 | 40,748 (0%) | 0% | 0 | Common Stock, par value $0.003 per share | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 31 Jan 2022 | 6,263 | 6,263 | - | - | Stock Option (right to buy) | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 31 Jan 2022 | 1,805 | 38,468 (0%) | 0% | 0 | Common Stock, par value $0.003 per share | |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 344.48 per share. | 31 Jan 2022 | 511 | 37,957 (0%) | 0% | 344.5 | 176,029 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 344.48 per share. | 31 Jan 2022 | 202 | 37,755 (0%) | 0% | 344.5 | 69,585 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 364.58 per share. | 22 Jan 2022 | 3,931 | 39,045 (0%) | 0% | 364.6 | 1,433,164 | Common Stock, par value $0.003 per share |
| MarketAxess Holdings Inc | Christopher R. Concannon | Director, President & COO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 364.58 per share. | 22 Jan 2022 | 2,382 | 36,663 (0%) | 0% | 364.6 | 868,430 | Common Stock, par value $0.003 per share |