Jill Griebenow
CIK 1750027 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 15, 2018 · Latest: Feb. 23, 2026
On this page
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 97 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
97 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 4, 2024 | CBOE | S 10b5-1 | 1,622 | $213.33 | $346,021 | 8,844 Direct | -15.50% | Disposed | 43.6% (price as of 2026-08-25) |
| Dec. 5, 2022 | CBOE | S | 400 | $128.00 | $51,200 | 7,230 Direct | -5.24% | Disposed | 139.4% (price as of 2026-08-25) |
| May 17, 2021 | CBOE | S | 200 | $113.66 | $22,732 | 4,967 Direct | -3.87% | Disposed | 169.5% (price as of 2026-08-25) |
Showing latest 100 of 122 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Feb. 19, 2026 | CBOE | Restricted Stock Units | Common Stock (432) | — | — | 432 | Disposed |
| Feb. 19, 2026 | CBOE | Restricted Stock Units | Common Stock (653) | — | — | 653 | Disposed |
| Feb. 19, 2026 | CBOE | Restricted Stock Units | Common Stock (1,652) | — | — | 1,652 | Disposed |
| Feb. 19, 2026 | CBOE | Restricted Stock Units | Common Stock (1,863) | — | — | 1,863 | Disposed |
| Feb. 19, 2026 | CBOE | Restricted Stock Units | Common Stock (4,980) | — | — | 4,980 | Acquired |
| Feb. 19, 2025 | CBOE | Restricted Stock Units | Common Stock (826) | — | — | 826 | Disposed |
| Feb. 19, 2025 | CBOE | Restricted Stock Units | Common Stock (431) | — | — | 431 | Disposed |
| Feb. 19, 2025 | CBOE | Restricted Stock Units | Common Stock (653) | — | — | 653 | Disposed |
| Feb. 19, 2025 | CBOE | Restricted Stock Units | Common Stock (1,651) | — | — | 1,651 | Disposed |
| Feb. 19, 2025 | CBOE | Restricted Stock Units | Common Stock (5,589) | — | — | 5,589 | Acquired |
| Feb. 19, 2024 | CBOE | Restricted Stock Units | Common Stock (1,023) | — | — | 1,023 | Disposed |
| Feb. 19, 2024 | CBOE | Restricted Stock Units | Common Stock (826) | — | — | 826 | Disposed |
| Feb. 19, 2024 | CBOE | Restricted Stock Units | Common Stock (431) | — | — | 431 | Disposed |
| Feb. 19, 2024 | CBOE | Restricted Stock Units | Common Stock (653) | — | — | 653 | Disposed |
| Feb. 19, 2024 | CBOE | Restricted Stock Units | Common Stock (4,955) | — | — | 4,955 | Acquired |
| Feb. 19, 2024 | CBOE | Restricted Stock Units | Common Stock (670) | — | — | 670 | Acquired |
| Aug. 19, 2023 | CBOE | Restricted Stock Units | Common Stock (1,959) | — | — | 1,959 | Acquired |
| Feb. 19, 2023 | CBOE | Restricted Stock Units | Common Stock (676) | — | — | 676 | Disposed |
| Feb. 19, 2023 | CBOE | Restricted Stock Units | Common Stock (1,023) | — | — | 1,023 | Disposed |
| Feb. 19, 2023 | CBOE | Restricted Stock Units | Common Stock (826) | — | — | 826 | Disposed |
| Feb. 19, 2023 | CBOE | Restricted Stock Units | Common Stock (1,294) | — | — | 1,294 | Acquired |
| Feb. 19, 2022 | CBOE | Restricted Stock Units | Common Stock (842) | — | — | 842 | Disposed |
| Feb. 19, 2022 | CBOE | Restricted Stock Units | Common Stock (676) | — | — | 676 | Disposed |
| Feb. 19, 2022 | CBOE | Restricted Stock Units | Common Stock (1,023) | — | — | 1,023 | Disposed |
| Feb. 19, 2022 | CBOE | Restricted Stock Units | Common Stock (2,478) | — | — | 2,478 | Acquired |
| May 17, 2021 | CBOE | Restricted Stock Units | Common Stock (369) | — | — | 369 | Disposed |
| May 17, 2021 | CBOE | Restricted Stock Units | Common Stock (923) | — | — | 923 | Disposed |
| Feb. 19, 2021 | CBOE | Restricted Stock Units | Common Stock (171) | — | — | 171 | Disposed |
| Feb. 19, 2021 | CBOE | Restricted Stock Units | Common Stock (842) | — | — | 842 | Disposed |
| Feb. 19, 2021 | CBOE | Restricted Stock Units | Common Stock (676) | — | — | 676 | Disposed |
| Feb. 19, 2021 | CBOE | Restricted Stock Units | Common Stock (3,069) | — | — | 3,069 | Acquired |
| May 17, 2020 | CBOE | Restricted Stock Units | Common Stock (369) | — | — | 369 | Disposed |
| Feb. 28, 2020 | CBOE | Restricted Stock Units | Common Stock (224) | — | — | 224 | Disposed |
| Feb. 19, 2020 | CBOE | Restricted Stock Units | Common Stock (170) | — | — | 170 | Disposed |
| Feb. 19, 2020 | CBOE | Restricted Stock Units | Common Stock (842) | — | — | 842 | Disposed |
| Feb. 19, 2020 | CBOE | Restricted Stock Units | Common Stock (2,028) | — | — | 2,028 | Acquired |
| May 17, 2019 | CBOE | Restricted Stock Units | Common Stock (369) | — | — | 369 | Disposed |
| Feb. 28, 2019 | CBOE | Restricted Stock Units | Common Stock (223) | — | — | 223 | Disposed |
| Feb. 19, 2019 | CBOE | Restricted Stock Units | Common Stock (170) | — | — | 170 | Disposed |
| Feb. 19, 2019 | CBOE | Restricted Stock Units | Common Stock (2,526) | — | — | 2,526 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 15, 2018 | CBOE | Common Stock | 2,874 | Direct |
| Aug. 15, 2018 | CBOE | Restricted Stock Units→ Common Stock (447) | 447 | Direct |
| Aug. 15, 2018 | CBOE | Restricted Stock Units→ Common Stock (511) | 511 | Direct |
| Aug. 15, 2018 | CBOE | Restricted Stock Units→ Common Stock (923) | 923 | Direct |
| Aug. 15, 2018 | CBOE | Restricted Stock Units→ Common Stock (1,107) | 1,107 | Direct |