Breslin Sean J. 4

What Happened

• Sean J. Breslin, Chief Operating Officer of AvalonBay Communities (AVB), had 5,771 shares withheld by the company to satisfy tax withholding obligations tied to the vesting of restricted stock/performance share awards. The shares were valued at $177.23 each, totaling approximately $1,022,794. This was a tax-withholding disposition rather than an open-market sale or new purchase.

Key Details

• Transaction date and price: 2026-03-01; 5,771 shares withheld at $177.23 per share.
• Total value withheld: approximately $1,022,794.
• Shares owned after transaction: filing notes that the amount reported reflects direct ownership of all common shares, including restricted shares (footnote F2). The filing itself contains the exact post-transaction total.
• Footnotes: F1 — company withheld shares to cover tax withholding on vesting under the Second Amended and Restated 2009 Equity Incentive Plan; F2 — post-transaction ownership reflects direct ownership including restricted shares.
• Filing timeliness: Reported on Form 4 filed 2026-03-03 for a 2026-03-01 transaction (filed within the typical two-business-day window).

Context

• Transaction code F indicates tax withholding for vested awards. This is a routine administrative action and not an indicator of a deliberate insider sale or purchase in the open market.
• For retail investors, withholding on vesting is common and reflects compensation tax obligations rather than a change in insider sentiment.