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Cecilia Mao

CIK 2009173 · EVP, Chief Product Officer · last filed 2026-05-18

Cecilia Mao is an EVP, Chief Product Officer who has filed 9 SEC Form 4 insider transactions across 2 companies since 2024. The most recent filing, for CBOE, was dated May 18, 2026. Across all open-market trades the lifetime net is +$464.9K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.1M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$3.06M

Companies

2

Total Filings

9

Lifetime Open-Market Net

$464.9K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
CBOE Director 2,441 $310.23 $757.3K $0 4 2026-05-18
EFX EVP, Chief Product Officer 13,318 $172.62 $2.30M $464.9K 5 2026-02-27

Recent Filings

9 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-05-18 CBOE Grant (A) +530 $0 EDGAR
2026-02-27 EFX Grant (A) +2,695 $0 EDGAR
2026-02-19 EFX Buy (P) +2,400 $464.9K EDGAR
2026-02-12 EFX Mixed +456 -$186.1K EDGAR
2025-05-08 CBOE Grant (A) +729 $0 EDGAR
2025-02-13 EFX Mixed +248 -$87.5K EDGAR
2025-02-12 EFX Grant (A) +791 $0 EDGAR
2024-05-20 CBOE Grant (A) +937 $0 EDGAR
2024-02-12 CBOE Grant (A) +245 $0 EDGAR
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.