Griebenow Jill
Officer · CBOE
As of 2026-09-16, Griebenow Jill has 38 Form 4 transactions on record across 1 company — 25 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
- Direct $1.3M
- Indirect $0
| CBOE | direct | 4,980 sh | $1.3M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|
38 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-02-19 | CBOE | Option exercise | 1,863 | 17,907 | Form 4 |
| 2026-02-19 | CBOE | Option exercise | 1,652 | 16,776 | Form 4 |
| 2026-02-19 | CBOE | Withheld for tax | 826 | 17,081 | Form 4 |
| 2026-02-19 | CBOE | Withheld for tax | 732 | 16,044 | Form 4 |
| 2026-02-19 | CBOE | Option exercise | 653 | 15,414 | Form 4 |
| 2026-02-19 | CBOE | Option exercise | 432 | 14,953 | Form 4 |
| 2026-02-19 | CBOE | Withheld for tax | 290 | 15,124 | Form 4 |
| 2026-02-19 | CBOE | Withheld for tax | 192 | 14,761 | Form 4 |
| 2026-02-19 | CBOE | Option exercise | 653 | 0 | Form 4 |
| 2026-02-19 | CBOE | Option exercise | 1,863 | 3,726 | Form 4 |
| 2026-02-19 | CBOE | Option exercise | 432 | 0 | Form 4 |
| 2026-02-19 | CBOE | Award / grant | 4,980 | 4,980 | Form 4 |
| 2026-02-19 | CBOE | Option exercise | 1,652 | 1,652 | Form 4 |
| 2026-02-12 | CBOE | Withheld for tax | 869 | 14,397 | Form 4 |
| 2026-02-12 | CBOE | Withheld for tax | 869 | 12,586 | Form 4 |
| 2026-02-12 | CBOE | Withheld for tax | 597 | 11,495 | Form 4 |
| 2026-02-12 | CBOE | Withheld for tax | 574 | 13,306 | Form 4 |
| 2026-02-12 | CBOE | Withheld for tax | 51 | 14,459 | Form 4 |
| 2026-02-12 | CBOE | Withheld for tax | 51 | 14,521 | Form 4 |
| 2026-02-12 | CBOE | Award / grant | 1,960 | 15,266 | Form 4 |
| 2026-02-12 | CBOE | Award / grant | 1,294 | 12,092 | Form 4 |
| 2026-02-12 | CBOE | Award / grant | 1,960 | 13,455 | Form 4 |
| 2026-02-12 | CBOE | Award / grant | 1,294 | 13,880 | Form 4 |
| 2026-02-12 | CBOE | Award / grant | 113 | 14,510 | Form 4 |
| 2026-02-12 | CBOE | Award / grant | 113 | 14,572 | Form 4 |
| 2025-02-19 | CBOE | Option exercise | 1,651 | 11,530 | Form 4 |
| 2025-02-19 | CBOE | Option exercise | 826 | 9,670 | Form 4 |
| 2025-02-19 | CBOE | Withheld for tax | 732 | 10,798 | Form 4 |
| 2025-02-19 | CBOE | Option exercise | 653 | 10,169 | Form 4 |
| 2025-02-19 | CBOE | Option exercise | 431 | 9,707 | Form 4 |
| 2025-02-19 | CBOE | Withheld for tax | 394 | 9,276 | Form 4 |
| 2025-02-19 | CBOE | Withheld for tax | 290 | 9,879 | Form 4 |
| 2025-02-19 | CBOE | Withheld for tax | 191 | 9,516 | Form 4 |
| 2025-02-19 | CBOE | Option exercise | 653 | 653 | Form 4 |
| 2025-02-19 | CBOE | Option exercise | 1,651 | 3,304 | Form 4 |
| 2025-02-19 | CBOE | Option exercise | 431 | 432 | Form 4 |
| 2025-02-19 | CBOE | Award / grant | 5,589 | 5,589 | Form 4 |
| 2025-02-19 | CBOE | Option exercise | 826 | 0 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.