O'DONNELL SHANNON 4

4 · AUBURN NATIONAL BANCORPORATION, INC · Filed Mar 26, 2026

AI-generated summary of this filing

Updated Mar 26, 2026

AUBN SVP Shannon O'Donnell Receives Award; Shares Withheld for Taxes

What Happened

Shannon O'Donnell, Senior Vice President of Auburn National Bancorporation (AUBN), had 387 restricted stock units (RSUs vest) settle on March 10, 2026. As part of the settlement she received 7 dividend-equivalent shares and 273 net shares from the RSU vesting (total 280 shares issued). Separately, 114 shares were withheld by the issuer to cover tax withholding at $23.85 per share (114 x $23.85 = $2,719).

Key Details

Transaction date: March 10, 2026 (Settlement Date); Form filed March 26, 2026 (late filing).
Reported transaction codes: A = award/acquisition (7 dividend-equivalent shares); F = tax withholding (114 shares disposed/withheld).
Withholding price used: $23.85 per share (Nasdaq close on settlement date); tax withholding value ≈ $2,719.
Shares issued on Settlement Date: 273 net shares from RSU settlement + 7 dividend-equivalent shares = 280 shares issued to the reporting person.
Filing timeliness: Form 4 was filed late (remark included).

Context

This was not an open-market purchase or sale for investment purposes but the settlement of previously granted RSUs (previously reported on July 24, 2025). The 114-share "disposition" is a standard cashless tax withholding by the issuer to satisfy tax obligations, not an indicator of a voluntary sale.

Form 4

Period: 2026-03-10

Senior Vice President

Transactions

Award
common stock, par value $0.01
[F1]
2026-03-10+7→ 1,571 total
Tax Payment
common stock, par value $0.01
[F2][F3]
2026-03-10$23.85/sh−114$2,719→ 1,457 total

Footnotes (3)

[F1]Represents 7 shares received on March 10, 2026 (the "Settlement Date") as dividend equivalents upon the vesting of 387 restricted stock units.
[F2]114 shares were withheld by the Issuer from the on the Settlement Date to satisfy tax withholding obligations based on the $23.85 per share closing price on the Nasdaq Global Market on the Settlement Date resulting in the issuance of 273 net shares.
[F3]The reporting person previously reported the grant of 387 restricted stock units as an acquisition of common stock in Table I on July 24, 2025. On the Settlement Date, a total of 280 shares were issued to the Reporting Person.

Signature

/s/ Shannon O'Donnell|2026-03-26

1 file