SHEPARD WILLIAM R purchased 0.1% of their position (292.55 shares) of CME GROUP INC. on the open market
Open‑market purchase worth $78.6K — a small addition. The strongest form of insider conviction signal.
P · 1 purchase
Filed: 9/28/2026ACC: 0001212852-26-000005
+292.55
Net shares
Net buyer
$78.6K
Total acquired
1
Open market trades
1B · 0S
3
Total transactions
2.85K acquired · 2.55K disposed
Non-Derivative Transactions3
Common Stock Class A
Direct
Shares
−2.55K
Price / share
—
Trade value
—
% of position
70.5%
8/18/2026
3.62K→1.07K
Common Stock Class A
Indirect
Shares
+2.55K
Price / share
—
Trade value
—
% of position
1.0%
8/18/2026
260.44K→263K
Common Stock Class A
Indirect
Shares
+292.55
Price / share
$268.76
Trade value
$78.63K
% of position
0.1%
9/25/2026
263K→263.29K
Total
Net shares
+292.55
Net value
$78.63K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Class A Direct | 8/18/2026 | J · J | −2.55K | — | — | 70.5% | 3.62K | 1.07K |
| Common Stock Class A Indirect | 8/18/2026 | J · J | +2.55K | — | — | 1.0% | 260.44K | 263K |
| Common Stock Class A Indirect | 9/25/2026 | P · Purchase | +292.55 | $268.76 | $78.63K | 0.1% | 263K | 263.29K |
| Total | +292.55 | $78.63K | ||||||
Derivative Transactions0
No derivative transactions reported