AvalonBay Communities, Inc.
US ˙ NYSE ˙ US0534841012

SecurityAVB / AvalonBay Communities, Inc.
InstitutionBoston Trust Walden Corp
Latest Disclosed Ownership45,781 shares
Latest Disclosed Value $ 7,478,326
Boston Trust Walden Corp reports 3.39% decrease in ownership of AVB / AvalonBay Communities, Inc.

On April 24, 2026 - Boston Trust Walden Corp filed a 13F-HR form disclosing ownership of 45,781 shares of AvalonBay Communities, Inc. (US:AVB) valued at $7,478,326 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 47,389 shares of AvalonBay Communities, Inc.. This represents a change in shares of -3.39% during the quarter. The current value of the position is $8,386,621 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 45,781 -1,608 -3.39 7,478 -12.97 0.0368
2026-01-28 2025-12-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 47,389 -1,970 -3.99 8,592 -9.88 0.0648
2025-10-17 2025-09-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 49,359 -24,604 -33.27 9,535 -36.66 0.0700
2025-07-28 2025-06-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 73,963 -1,579 -2.09 15,051 -7.16 0.1074
2025-04-21 2025-03-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 75,542 -3,737 -4.71 16,213 -7.04 0.1185
2025-01-24 2024-12-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 79,279 -188 -0.24 17,439 -2.57 0.1224
2024-10-24 2024-09-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 79,467 -382 -0.48 17,900 8.35 0.1245
2024-07-19 2024-06-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 79,849 -10 -0.01 16,520 11.48 0.1225
2024-04-22 2024-03-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 79,859 510 0.64 14,819 -0.25 0.1057
2024-01-24 2023-12-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 79,349 9,330 13.32 14,856 23.53 0.1121
2023-10-18 2023-09-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 70,019 514 0.74 12,025 -8.59 0.1008
2023-07-24 2023-06-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 69,505 1,975 2.92 13,155 15.91 0.1079
2023-04-19 2023-03-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 67,530 9,815 17.01 11,349 21.74 0.0980
2023-01-20 2022-12-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 57,715 9,135 18.80 9,322 4.18 0.0820
2022-10-19 2022-09-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 48,580 2,305 4.98 8,948 -0.46 0.0886
2022-07-22 2022-06-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 46,275 1,025 2.27 8,989 -20.02 0.0849
2022-04-20 2022-03-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 45,250 -755 -1.64 11,239 -3.28 0.0928
2022-01-21 2021-12-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 46,005 3,235 7.56 11,620 22.57 0.0933
2021-10-25 2021-09-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 42,770 1,325 3.20 9,480 9.61 0.0839
2021-07-22 2021-06-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 41,445 5,615 15.67 8,649 30.83 0.0769
2021-04-21 2021-03-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 35,830 3,700 11.52 6,611 28.27 0.0640
2021-01-15 2020-12-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 32,130 -3,820 -10.63 5,154 -4.00 0.0550
2020-10-14 2020-09-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 35,950 5,890 19.59 5,369 15.49 0.0669
2020-07-23 2020-06-30 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 30,060 8,771 41.20 4,649 48.39 0.0628
2020-04-24 2020-03-31 13F/A-1 AVALONBAY COMMUNITIES COMMON STOCK 053484101 21,289 775 3.78 3,133 -27.17 0.0499
2020-04-21 2020-03-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 21,289 775 3,133 27,781.2607
2020-01-10 2019-12-31 13F AVALONBAY COMMUNITIES COMMON STOCK 053484101 20,514 20,514 4,302 0.0501
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.