Gillan-Myer Maureen A 4

What Happened

• Maureen A. Gillan-Myer, EVP, Chief Administrative & HR Officer of Community Financial System, Inc. (CBU), was credited with two award-type acquisitions on March 17, 2026 totaling 6,146 share equivalents.
  • 1,275 shares were acquired under the company’s 401(k) plan (reported at $0.00). (F1)
  • 4,871 were reported as derivative awards (restricted stock units), each representing a contingent right to receive one share (reported at $0.00). (F2)
• These were grants/awards (not open-market purchases or sales) so the reported dollar consideration at grant is $0.00; the economic value will depend on future vesting and the stock price when/if shares are issued.

Key Details

• Transaction date: March 17, 2026; Form filed March 19, 2026 (appears timely under the Form 4 two-business-day rule).
• Amounts: 1,275 shares (401(k) plan) and 4,871 restricted stock units — total 6,146 share equivalents.
• Price: $0.00 per share at grant (awarded, not purchased).
• Vesting: RSUs vest in three equal installments beginning March 1, 2027 (F3). Filing also includes a footnote describing an option vesting schedule (ratable vesting on March 17, 2027–2031) — see the filing for full details (F4).
• Shares owned after the transaction: not specified in the provided summary of the filing.
• Filing type: derivative awards (A); these are contingent rights to receive shares rather than immediate cash or stock proceeds.

Context

• Awards and 401(k) allocations are typically compensation or plan-related credits and do not necessarily signal an insider buying shares on the open market; they reflect compensation and benefit plan activity.
• Restricted stock units only convert to actual shares as they vest; their ultimate value depends on Community Financial’s future share price.