Shepard William R

Insider·CME GROUP INC.·CME·Insider since 2025·Form 4 filings: 12
Trades YTD
2
Trades (12m)
6
Net position
Current holdings
P-code buys (12m)
6open-market
Cluster
None

Transaction history · last 12 months

6 transactions
30 Dec 2025
BOUGHT
$CME
251
$278.37
P
30 Dec 2025
BOUGHT
$CME
11
$278.37
P
25 Sep 2025
BOUGHT
$CME
11
$265.22
P
25 Sep 2025
BOUGHT
$CME
262
$265.19
P
25 Jun 2025
BOUGHT
$CME
11
$270.53
P
25 Jun 2025
BOUGHT
$CME
256
$270.53
P

Transaction codes: P open-market purchase · S sale · M option exercise · A grant.

Cluster context · CME GROUP INC.

last 30 days

No active insider cluster at CME GROUP INC. in the last 30 days. R's recent transactions appear in the section above.

Convergence · Pattern Engine ships in v1.1

30-day window
In development

Convergence participation lands with the Pattern Engine.

Once the Pattern Engine ships, this section will list every active convergence event R is named in — the hedge funds and Congress members on the same name, the 30-day window, and the combined position size.

Context

Form 4 background

Form 4 filings are required within two business days of any insider transaction by an officer, director, or 10%+ shareholder. Open-market purchases (transaction code P) are the most signal-rich because they indicate the insider is paying market price with personal cash — as distinct from option exercises, scheduled sales, or compensation grants. Cluster buying — three or more insiders of the same company buying open-market shares in a 30-day window — has historically been one of the strongest positive insider-trading signals in the academic literature.

Source data: SEC EDGAR · Form 4 filings · Last refreshed 13:16 UTC.