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Share Incentive and Other Compensation | 9 Months Ended
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Sep. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Share Incentive and Other Compensation | 13. Share Incentive a nd Other Compensation Share Incentive Plan The Amended and Restated 2020 Share Incentive Plan, as approved by the Board and the Company’s shareholders, increased the number of Common Shares authorized for issuance to 3,883,564 Common Shares. The plan allows for the issuance of options, Restricted Shares, LTIP Units, and other securities (collectively “Awards”) to, among others, the Company’s officers, trustees, and employees. As of September 30, 2025 a to tal of 2,299,593 shares remain ed available to be issued under the Amended and Restated 2020 Plan. A summary of the status of the Company’s unvested Restricted Shares and LTIP Units is presented below:
Unvested Restricted Shares and LTIP Units |  | Common Restricted Shares |  |  | Weighted Grant-Date Fair Value |  |  | LTIP Units |  |  | Weighted Grant-Date Fair Value |
Unvested as of December 31, 2023 |  |  | 113,909 |  |  | $ | 14.41 |  |  |  | 1,798,659 |  |  | $ | 16.03 |
Granted |  |  | 49,756 |  |  |  | 17.06 |  |  |  | 766,508 |  |  |  | 16.19 |
Vested |  |  | (55,947 | ) |  |  | 17.20 |  |  |  | (448,598 | ) |  |  | 18.77 |
Forfeited |  |  | (1,537 | ) |  |  | 17.24 |  |  |  | (62,502 | ) |  |  | 26.47 |
Unvested as of December 31, 2024 |  |  | 106,181 |  |  |  | 14.41 |  |  |  | 2,054,067 |  |  |  | 15.17 |
Granted |  |  | 41,332 |  |  |  | 22.38 |  |  |  | 644,258 |  |  |  | 22.10 |
Vested |  |  | (43,309 | ) |  |  | 17.00 |  |  |  | (632,816 | ) |  |  | 15.68 |
Forfeited |  |  | — |  |  |  | — |  |  |  | (3,127 | ) |  |  | 15.07 |
Unvested as of September 30, 2025 |  |  | 104,204 |  |  | $ | 16.22 |  |  |  | 2,062,382 |  |  | $ | 17.18 |
The weighted-average grant date fair value for Restricted Shares and LTIP Units granted for the nine months ended September 30, 2025 and the year ended December 31, 2024 were $22.11 and $16.24, respectively. As of September 30, 2025, there was $24.0 million of total u nrecognized compensation cost related to unvested share-based compensation arrangements granted under the Amended and Restated 2020 Plan. That cost is expected to be recognized over a weighted-average period of 1.3 years. The total fair value of Restricted Shares that vested during the nine months ended September 30, 2025 and the year ended December 31, 2024, w as $0.7 million and $1.0 million, respectively. The total fair value of LTIP Units that vested (LTIP units vest primarily during the first quarter) during the nine months ended September 30, 2025 and the year ended December 31, 2024, w as $9.9 million and $8.4 mill ion, respectively. Restricted Shares and LTIP Units - Employees During the nine months ended September 30, 2025, the Company iss ued 605,550 LTIP Units and 23,130 restricted share units (“Restricted Share Units”), to employees of the Company pursuant to the Amended and Restated 2020 Plan. Certain of these e quity awards were granted in performance-based Restricted Share Units or LTIP Units with market conditions as described below (“Performance Shares”). These awards were measured at their fair value on the grant date, incorporating the following factors: • A portion of these annual equity awards is granted in performance-based Restricted Share Units or LTIP Units that may be earned based on the Company’s attainment of specified relative total shareholder returns (“Relative TSR”) hurdles or specified same-property net operating income growth (“Absolute SSNOI Growth”). • In the event the Relative TSR percentile falls between the 25th percentile and the 50th percentile, the Relative TSR vesting percentage is determined using a straight-line linear interpolation between 50% and 100% and in the event that the Relative TSR percentile falls between the 50th percentile and 75th percentile, the Relative TSR vesting percentage is determined using a straight-line linear interpolation between 100% and 200%. • Fifty percent (50%) of the performance-based LTIP Units will vest based on the Company’s total shareholder return (“TSR”) for the three-year forward-lo oking performance period relative to the constituents of the National Association of Real Estate Investment Trusts (“NAREIT”) Shopping Center Property Subsector and twenty five percent (25%) on the Company’s TSR for the three-year forward-looking performance period as compared to the constituents of the NAREIT Retail Property Sector (both on a non-weighted basis). • Twenty-five percent (25%) of the performance-based LTIP Units will vest based on the Company’s same-property net operating income (“SSNOI”) growth for the three-year forward-looking performance period. If the Company achieves annualized SSNOI growth between 2% and 3%, the Absolute SSNOI Growth vesting percentage is determined using a straight-line linear interpolation between 50% and 100% and in the event that the Company achieves annualized SSNOI growth between 3% and 4%, the Absolute SSNOI Growth vesting percentage is determined using a straight-line linear interpolation between 100% and 200%. • If the Company’s performance fails to achieve the aforementioned hurdles at the culmination of the three-year performance period, all performance-based shares will be forfeited. Any earned performance-based shares vest in accordance with the applicable award agreements. For valuation of the 2025 and 2024 Performance Shares, a Monte Carlo simulation was used to estimate the fair values of the relative TSR portion based on probability of satisfying the market conditions and the projected sha re prices at the time of payments, discounted to the valuation dates over the three-year performance periods. The assumptions include volatility (29.0% and 43.0%) and risk-free interest rates of (4.4% and 4.8%) for 2025 and 2024, respectively. The total fair value of the 2025 and 2024 Performance Shares will be expensed on a graded vesting basis over the vesting period of the award. The total fair value of the above Restricted Share Units and LTIP Units as of the gran t date was $14.7 mil lion for the nine months ended September 30, 2025 and $12.2 million for the year ended December 31, 2024. Total long-term incentive compensation expense, including the expense related to the Amended and Restated 2020 Plan, was $2.9 million and $2.4 million for the three months ended September 30, 2025, and 2024, respectively, and $8.3 million and $7.0 mill ion for the nine months ended September 30, 2025 and 2024, respectively, and is recorded in General and administrative in the Condensed Consolidated Statements of Operations. Restricted Shares and LTIP Units - Board of Trustees In addition, members of the Board have been issued shares and units under the Amended and Restated 2020 Plan. During the nine months ended September 30, 2025, the Compa ny issued 38,708 LTIP Units and 18,202 Restricte d Share Units issued to Trustees of the Company. The Restricted Share Units do not carry voting rights or other rights of Common Shares until vesting and may not be transferred, assigned or pledged until the recipients have a vested non-forfeitable right to such shares. Dividends are not paid currently on unvested Restricted Shares but are paid cumulatively from the issuance date through the applicable vesting date of such Restricted Shares. Total trustee fee expense, including the expense related to the Amended and Restated 2020 Plan, was $0.4 million for the three months ended September 30, 2025 and 2024, and $1.1 million and $1.2 million for the nine months ended September 30, 2025 and 2024, respectively, and is recorded in General and administrative in the Condensed Consolidated Statements of Operations. Long-Term Investment Alignment Program In 2009, the Company adopted the Long-Term Investment Ali gnment Program (the “Program”) pursuant to which the Company may grant awards to employees, entitling them to receive up to 25% of any potential future payments of Promote to the Operating Partnership from Funds III, IV and V. The Company has granted such awards to employees representing 25% of the potential Promote payments from Fund III to the Operating Partnership, 23.1% of the potential Promote payments from Fund IV to the Operating Partnership and 24.4% of the potential Promote payments from Fund V to the Operating Partnership. Payments to senior executives under the Program require further approval by the Compensation Committee at the time any potential payments are due pursuant to these grants. Compensation relating to these awards will be recognized in each reporting period in which approval is granted by the Compensation Committee. As payments to other employees are not subject to further approval by the Compensation Committee, compensation relating to these awards will be recorded based on the estimated fair value as of each reporting period in accordance with ASC Topic 718, Compensation– Stock Compensation. The awards in connection with Fund IV were determined to have no intrinsic value as of September 30, 2025 or December 31, 2024. For the nine months ended September 30, 2025, the Company recognized $0.1 million of compensation expense under the Program related to Fund III. The Company did no t recognize any compensation expense under the Program related to Funds III and V during 2024. Other Plans On a combined basis, the Company incurred a total of $0.4 million of compensation expense related to the following employee benefit plans for each of the nine months ended September 30, 2025 and 2024. Employee Share Purchase Plan The Acadia Realty Trust Employee Share Purchase Plan (the “Purchase Plan”) allows eligible employees of the Company to purchase Common Shares through payroll deductions for a maximum aggregate issuance of 200,000 Common Shares. The Purchase Plan provides for employees to purchase Common Shares on a quarterly basis at a 15% discount to the closing price of the Company’s Common Shares on either the first day or the last day of the quarter, whichever is lower. A participant may not purchase more than $25,000 in Common Shares per year. Compensation expense will be recognized by the Company to the extent of the above discount to the closing price of the Common Shares with respect to the applicable quarter. A total of 10,052 and 11,034 Common Shares were purchased by employees under the Purchase Plan for the nine months ended September 30, 2025 and 2024, respectively, a nd 151,689 shares remained available to be issued under the Purchase Plan. Deferred Share Plan The Company maintains a Trustee Deferral and Distribution Election program, under which the participating Trustees earn deferred compensation. Employee 401(k) Plan The Company maintains a 401(k) plan for employees under which the Company currently matches 50% of a plan participant’s contribution up to 6% of the employee’s annual salary. A plan participant may contribute up to a maximum of 15% of their compensation, up to $23,500, for the year ending December 31, 2025.

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