Christopher A. Isaacson is COO & VP at CBOE Holdings, Inc. (CBOE). They have made 14 open-market trades across 2 companies since 2016, most recently 2026-02-19.
CIK 0001538451
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $24K since 2016, against 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CBOE | SELL · 10b5-1 | 2025-09-02 | 2025-09-04 | $236.66 | $1.2M | -0.0% | +1.3% | +8.6% |
| CBOE | SELL · 10b5-1 | 2025-06-09 | 2025-06-11 | $221.37 | $1.1M | +2.9% | +5.4% | +4.3% |
| CBOE | SELL · 10b5-1 | 2024-09-03 | 2024-09-05 | $204.89 | $1.2M | +1.7% | -1.3% | +1.0% |
| CBOE | SELL · 10b5-1 | 2024-06-21 | 2024-06-25 | $175.00 | $1.1M | -0.4% | +10.3% | +23.6% |
| CBOE | SELL · 10b5-1 | 2023-12-01 | 2023-12-05 | $182.23 | $1.4M | -4.0% | -4.8% | +3.9% |
| CBOE | SELL · 10b5-1 | 2023-09-01 | 2023-09-06 | $149.08 | $574K | +0.5% | +7.1% | +20.6% |
| CBOE | SELL · 10b5-1 | 2023-06-05 | 2023-06-07 | $133.98 | $1.0M | +2.0% | +1.2% | +11.0% |
| CBOE | SELL | 2021-11-05 | 2021-11-09 | $132.46 | $530K | -1.5% | -1.9% | -8.8% |
| CBOE | SELL | 2021-08-20 | 2021-08-24 | $128.93 | $322K | -0.1% | -2.0% | +0.4% |
| CBOE | SELL | 2021-05-14 | 2021-05-18 | $113.92 | $535K | +2.0% | +7.3% | +14.9% |
| CBOE | SELL | 2019-11-15 | 2019-11-19 | $118.87 | $1.2M | -1.6% | -3.1% | +1.9% |
| CBOE | SELL | 2019-08-15 | 2019-08-19 | $121.32 | $2.2M | -0.2% | -3.3% | +1.0% |
| CBOE | SELL | 2019-05-29 | 2019-05-31 | $104.93 | $1.0M | -0.5% | -1.4% | +10.1% |
| CBOE | SELL | 2018-11-27 | 2018-11-29 | $106.48 | $1.9M | -1.6% | -7.8% | -11.2% |
| CBOE | SELL | 2018-08-30 | 2018-09-04 | $100.03 | $1.7M | -0.0% | -8.5% | +0.7% |
| CBOE | SELL | 2018-06-06 | 2018-06-08 | $100.02 | $1.7M | -0.1% | -1.0% | -1.3% |
| CBOE | SELL | 2017-12-01 | 2017-12-05 | $124.42 | $873K | +2.2% | +0.3% | -6.7% |
| CBOE | SELL | 2017-12-01 | 2017-12-05 | $124.42 | $873K | +2.2% | +0.3% | -6.7% |
| CBOE | SELL | 2017-09-01 | 2017-09-06 | $100.61 | $1.4M | +1.4% | +4.0% | +19.0% |
| CBOE | SELL | 2017-06-12 | 2017-06-14 | $89.21 | $1.3M | +0.2% | +2.8% | +17.0% |
| BATS | BUY | 2016-04-20 | 2016-04-20 | $19.00 | $24K | +3.5% | +11.8% | +11.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.