Whipple John F. is a corporate insider who has filed 1 SEC Form 4 transaction in the past 12 months across 0 companies. No open-market purchases were recorded; all transactions were sales or other dispositions. Insider activity is one signal among many — past performance does not guarantee future results.

Whipple John F.

Director

Latest Insider Transactions

4 transactions (past 365 days)

CBU
Director
Exercise Conversion
$0
4,246 shares @ $0.00
Filed 2026-02-06Trade 2026-02-04
Community Financial System, Inc.
CBU
Director
Exercise Conversion
$161.4K
4,246 shares @ $38.02
Filed 2026-02-06Trade 2026-02-04
Community Financial System, Inc.
CBU
Director
Sale
-$276.7K
4,246 shares @ $65.17
Filed 2026-02-06Trade 2026-02-04
Community Financial System, Inc.
CBU
Director
Exercise Conversion
$0
1,370 shares @ $0.00
Filed 2025-12-03Trade 2025-12-01
Community Financial System, Inc.