Mao Cecilia
Director · Officer · CBOE, EFX
As of 2026-09-16, Mao Cecilia has 10 Form 4 transactions on record across 2 companies — 5 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
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 |
|---|---|---|---|---|---|---|---|
| 2026-02-18 | EFX | Purchase | 2,400 @ $193.72 | $465K | +29.2% of holding | 10,623 | Form 4 |
9 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-05-14 | CBOE | Award / grant | 530 | 2,441 | Form 4 |
| 2026-02-25 | EFX | Award / grant | 2,695 | 13,318 | Form 4 |
| 2026-02-10 | EFX | Withheld for tax | 918 | 8,223 | Form 4 |
| 2026-02-10 | EFX | Award / grant | 1,374 | 9,141 | Form 4 |
| 2025-05-06 | CBOE | Award / grant | 729 | 1,911 | Form 4 |
| 2025-02-11 | EFX | Withheld for tax | 346 | 7,749 | Form 4 |
| 2025-02-11 | EFX | Award / grant | 594 | 8,095 | Form 4 |
| 2025-02-10 | EFX | Award / grant | 791 | 7,501 | Form 4 |
| 2025-02-10 | EFX | Award / grant | 2,541 | 2,541 | 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.