Cboe Global Markets's top three insider shareholders as of September 29, 2026 are Edward T Tilly (Chairman And Ceo, 177.98K shares), Christopher A Isaacson (Evp, Coo, 50.06K shares), Fredric J Tomczyk (Chief Executive Officer, 35.63K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Edward T Tilly | Chairman And Ceo | 177,983 | 0 | 177,983 | 34.2% | 12 Jul, 2023 |
| 2 | Christopher A Isaacson | Evp, Coo | 50,059 | 0 | 50,059 | 9.6% | 23 Feb, 2026 |
| 3 | Fredric J Tomczyk | Chief Executive Officer | 35,631 | 0 | 35,631 | 6.9% | 02 Jul, 2026 |
| 4 | John P Sexton | Evp, Gc And Corp Sec | 29,575 | 0 | 29,575 | 5.7% | 23 Feb, 2026 |
| 5 | Roderick A Palmore | Director | 27,730 | 0 | 27,730 | 5.3% | 18 May, 2026 |
| 6 | Eugene S Sunshine | Director | 24,611 | 0 | 24,611 | 4.7% | 16 May, 2022 |
| 7 | Joseph P Ratterman | Director | 0 | 20,515 | 20,515 | 3.9% | 14 Dec, 2023 |
| 8 | Jill Griebenow | Evp, Cfo | 17,081 | 0 | 17,081 | 3.3% | 23 Feb, 2026 |
| 9 | Edward J. Fitzpatrick | Director | 13,451 | 0 | 13,451 | 2.6% | 18 May, 2026 |
| 10 | John Deters | Evp, Corporate Strategy | 13,228 | 0 | 13,228 | 2.5% | 22 Feb, 2023 |
| 11 | Janet P Froetscher | Director | 12,870 | 0 | 12,870 | 2.5% | 14 Aug, 2026 |
| 12 | William M Iii Farrow | Director | 12,735 | 0 | 12,735 | 2.5% | 18 May, 2026 |
| 13 | Jill R Goodman | Director | 12,448 | 0 | 12,448 | 2.4% | 18 May, 2026 |
| 14 | James E. Parisi | Director | 9,969 | 0 | 9,969 | 1.9% | 18 May, 2026 |
| 15 | Brian N Schell | Executive Vp, Cfo Treasurer | 9,577 | 0 | 9,577 | 1.8% | 22 Feb, 2023 |
| 16 | Dave Howson | Evp, Global President | 8,025 | 0 | 8,025 | 1.5% | 21 Feb, 2025 |
| 17 | Ivan K Fong | Director | 7,441 | 0 | 7,441 | 1.4% | 18 May, 2026 |
| 18 | Jill E. Sommers | Director | 6,550 | 0 | 6,550 | 1.3% | 16 May, 2022 |
| 19 | Jennifer J Mcpeek | Director | 6,368 | 0 | 6,368 | 1.2% | 18 May, 2026 |
| 20 | Alexander Jr Matturri | Director | 4,761 | 0 | 4,761 | 0.9% | 20 Feb, 2026 |
| 21 | Stephanie Foley | Evp, Chro | 3,868 | 0 | 3,868 | 0.7% | 23 Feb, 2026 |
| 22 | Timothy Lipscomb | Evp, Chief Technology Officer | 2,638 | 0 | 2,638 | 0.5% | 23 Feb, 2026 |
| 23 | Craig S Donohue | Ceo | 2,604 | 0 | 2,604 | 0.5% | 23 Feb, 2026 |
| 24 | Erin Mansfield | Director | 2,441 | 0 | 2,441 | 0.5% | 18 May, 2026 |
| 25 | Cecilia Mao | Director | 2,441 | 0 | 2,441 | 0.5% | 18 May, 2026 |
| 26 | Catherine R Clay | Evp, Global Derivatives | 2,183 | 0 | 2,183 | 0.4% | 28 May, 2025 |
| 27 | Adam Inzirillo | Evp, Data Vantage | 1,993 | 0 | 1,993 | 0.4% | 21 Feb, 2025 |
| 28 | Robert A Hocking | Evp, Global Head Of Derivs. | 514 | 0 | 514 | 0.1% | 23 Feb, 2026 |
| 29 | Allen Wilkinson | Svp, Chief Accounting Officer | 410 | 0 | 410 | 0.1% | 25 Feb, 2026 |
| 30 | Prashant Bhatia | Evp, Strategy Corp Dev | 95 | 0 | 95 | 0.0% | 23 Feb, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 19 Aug, 2026 | Heidi Fischer | Evp, Equities And Spot Markets | Acquired A | 1,781 | $0.00 | $0 | 1,781 | Direct |
| 19 Aug, 2026 | Boudewijn Duinstra | Evp, Chief Risk Officer | Acquired A | 1,335 | $0.00 | $0 | 1,335 | Direct |
| 19 Aug, 2026 | Heidi Fischer | Evp, Equities And Spot Markets | Acquired A | 1,119 | $0.00 | $0 | 1,119 | Direct |
| 19 Aug, 2026 | Boudewijn Duinstra | Evp, Chief Risk Officer | Acquired A | 1,069 | $0.00 | $0 | 1,069 | Direct |
| 12 Aug, 2026 | Janet P Froetscher | Director | Disposed S | 937 | $278.95 | $261.38K | 12,870 | Direct |
| 01 Jul, 2026 | Fredric J Tomczyk | Director | Disposed F | 337 | $247.72 | $83.48K | 35,631 | Direct |
| 19 May, 2026 | Allen Wilkinson | Svp, Chief Accounting Officer | Acquired A | 166 | $0.00 | $0 | 166 | Direct |
| 18 May, 2026 | Janet P Froetscher | Director | Disposed S | 1,223 | $358.09 | $437.94K | 13,807 | Direct |
| 14 May, 2026 | William M Iii Farrow | Director | Acquired A | 530 | $0.00 | $0 | 12,735 | Direct |
| 14 May, 2026 | Fredric J Tomczyk | Director | Acquired A | 530 | $0.00 | $0 | 35,968 | Direct |
| 14 May, 2026 | Janet P Froetscher | Director | Acquired A | 530 | $0.00 | $0 | 15,030 | Direct |
| 14 May, 2026 | Ivan K Fong | Director | Acquired A | 530 | $0.00 | $0 | 7,441 | Direct |
| 14 May, 2026 | James E. Parisi | Director | Acquired A | 530 | $0.00 | $0 | 9,969 | Direct |
| 14 May, 2026 | Edward J. Fitzpatrick | Director | Acquired A | 530 | $0.00 | $0 | 13,451 | Direct |
| 14 May, 2026 | Jill R Goodman | Director | Acquired A | 530 | $0.00 | $0 | 12,448 | Direct |
| 14 May, 2026 | Jennifer J Mcpeek | Director | Acquired A | 530 | $0.00 | $0 | 6,368 | Direct |
| 14 May, 2026 | Cecilia Mao | Director | Acquired A | 530 | $0.00 | $0 | 2,441 | Direct |
| 14 May, 2026 | Erin Mansfield | Director | Acquired A | 530 | $0.00 | $0 | 2,441 | Direct |
| 14 May, 2026 | Roderick A Palmore | Director | Acquired A | 530 | $0.00 | $0 | 27,730 | Direct |
| 23 Feb, 2026 | Allen Wilkinson | Svp, Chief Accounting Officer | Disposed S | 248 | $292.79 | $72.61K | 410 | Direct |