AvalonBay Communities, Inc.
US ˙ NYSE ˙ US0534841012

SecurityAVB / AvalonBay Communities, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,665,936 shares
Latest Disclosed Value $ 272,131,096
Morgan Stanley reports 15.78% decrease in ownership of AVB / AvalonBay Communities, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,665,936 shares of AvalonBay Communities, Inc. (US:AVB) valued at $272,130,646 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,978,148 shares of AvalonBay Communities, Inc.. This represents a change in shares of -15.78% during the quarter. The current value of the position is $305,182,816 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)
2026-05-15 2026-03-31 13F AVALONBAY CMNTYS COM 053484101 1,665,936 -312,212 -15.78 272,131 -24.13 0.0164
2026-05-27 2025-12-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,978,148 34,408 1.77 358,658 -4.48 0.0214
2026-02-13 2025-12-31 13F AVALONBAY CMNTYS COM 053484101 1,978,148 34,408 358,658 0.0214
2026-05-27 2025-09-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,943,740 393,852 25.41 375,473 19.05 0.0227
2025-11-14 2025-09-30 13F AVALONBAY CMNTYS COM 053484101 1,943,740 393,852 375,473 0.0227
2025-08-15 2025-06-30 13F AVALONBAY CMNTYS COM 053484101 1,549,888 -273,379 -14.99 315,403 -19.40 0.0205
2025-05-15 2025-03-31 13F AVALONBAY CMNTYS COM 053484101 1,823,267 183,481 11.19 391,310 8.49 0.0280
2025-05-15 2024-12-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,639,786 -150,502 -8.41 360,704 -10.55 0.0253
2025-02-14 2024-12-31 13F AVALONBAY CMNTYS COM 053484101 1,639,786 -150,502 360,704 0.0253
2025-05-14 2024-09-30 13F/A-2 AVALONBAY CMNTYS COM 053484101 1,790,288 26,099 1.48 403,263 10.48 0.0292
2025-02-14 2024-09-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,790,288 26,099 403,263 0.0292
2024-11-14 2024-09-30 13F AVALONBAY CMNTYS COM 053484101 1,790,288 26,099 403,263 0.0035
2025-05-14 2024-06-30 13F/A-2 AVALONBAY CMNTYS COM 053484101 1,764,189 300,181 20.50 364,994 34.36 0.0282
2024-10-17 2024-06-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,764,189 300,181 364,994 0.0282
2024-08-14 2024-06-30 13F AVALONBAY CMNTYS COM 053484101 1,764,189 300,181 364,994 0.0282
2024-10-17 2024-03-31 13F/A-2 AVALONBAY CMNTYS COM 053484101 1,464,008 -15,012 -1.01 271,662 -1.89 0.0218
2024-08-16 2024-03-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,464,008 -15,012 271,662 0.0218
2024-05-15 2024-03-31 13F AVALONBAY CMNTYS COM 053484101 1,464,008 -15,012 271,662 0.0218
2024-08-16 2023-12-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,479,020 -174,152 -10.53 276,903 -2.47 0.0244
2024-02-13 2023-12-31 13F AVALONBAY CMNTYS COM 053484101 1,479,020 -174,152 276,903 0.0244
2023-11-15 2023-09-30 13F AVALONBAY CMNTYS COM 053484101 1,653,172 2,048 0.12 283,916 -9.15 0.0289
2023-08-14 2023-06-30 13F AVALONBAY CMNTYS COM 053484101 1,651,124 -366,954 -18.18 312,509 -7.86 0.0308
2023-05-15 2023-03-31 13F AVALONBAY CMNTYS COM 053484101 2,018,078 653,586 47.90 339,158 53.89 0.0364
2023-02-14 2022-12-31 13F AVALONBAY CMNTYS COM 053484101 1,364,492 -816,113 -37.43 220,393 -45.13 0.0250
2022-11-14 2022-09-30 13F AVALONBAY CMNTYS COM 053484101 2,180,605 108,689 5.25 401,645 -0.20 0.0547
2022-10-27 2022-06-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 2,071,916 1,431,018 223.28 402,469 152.84 0.0522
2022-08-15 2022-06-30 13F AVALONBAY CMNTYS COM 053484101 2,071,916 1,431,018 402,469 0.0105
2022-10-27 2022-03-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 640,898 25,632 4.17 159,180 2.43 0.0215
2022-05-13 2022-03-31 13F AVALONBAY CMNTYS COM 053484101 640,898 25,632 159,180 0.0215
2022-02-14 2021-12-31 13F AVALONBAY CMNTYS COM 053484101 615,266 -234,565 -27.60 155,411 -17.49 0.0192
2021-11-15 2021-09-30 13F AVALONBAY CMNTYS COM 053484101 849,831 -48,331 -5.38 188,357 0.49 0.0254
2021-08-23 2021-06-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 898,162 -232,587 -20.57 187,437 -10.16 0.0247
2021-08-16 2021-06-30 13F AVALONBAY CMNTYS COM 053484101 898,162 -232,587 187,437 0.0051
2021-05-17 2021-03-31 13F AVALONBAY CMNTYS COM 053484101 1,130,749 21,124 1.90 208,635 17.20 0.0306
2021-02-16 2020-12-31 13F AVALONBAY CMNTYS COM 053484101 1,109,625 -313,023 -22.00 178,016 -16.21 0.0275
2020-11-13 2020-09-30 13F AVALONBAY CMNTYS COM 053484101 1,422,648 -5,423 -0.38 212,459 -3.79 0.0411
2020-08-14 2020-06-30 13F AVALONBAY CMNTYS COM 053484101 1,428,071 302,129 26.83 220,837 33.27 0.0489
2020-05-26 2020-03-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,125,942 -107,402 -8.71 165,705 -35.93 0.0450
2020-05-15 2020-03-31 13F AVALONBAY CMNTYS COM 053484101 1,125,942 -107,402 165,705 12,729.5984
2020-02-14 2019-12-31 13F AVALONBAY CMNTYS COM 053484101 1,233,344 -53,945 -4.19 258,632 -6.70 0.0601
2019-11-14 2019-09-30 13F AVALONBAY CMNTYS COM 053484101 1,287,289 -40,770 -3.07 277,193 2.73 0.0734
2019-08-14 2019-06-30 13F AVALONBAY CMNTYS COM 053484101 1,328,059 -100,726 -7.05 269,834 -5.92 0.0718
2019-05-15 2019-03-31 13F AVALONBAY CMNTYS COM 053484101 1,428,785 -88,844 -5.85 286,801 8.58 0.0812
2019-02-14 2018-12-31 13F AVALONBAY CMNTYS COM 053484101 1,517,629 -25,450 -1.65 264,143 -5.50 0.0790
2019-04-23 2018-09-30 13F/A-2 AVALONBAY CMNTYS COM 053484101 1,543,079 87,440 6.01 279,528 11.72 0.0700
2018-11-20 2018-09-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,543,079 0 279,528 0.0700
2018-11-14 2018-09-30 13F AVALONBAY CMNTYS COM 053484101 1,543,079 87,440 279,528
2019-04-23 2018-06-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,455,639 8,707 0.60 250,212 5.15 0.0676
2018-08-14 2018-06-30 13F AVALONBAY CMNTYS COM 053484101 1,455,639 8,707 250,212
2019-04-23 2018-03-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,446,932 -87,638 -5.71 237,963 -13.08 0.0660
2018-05-14 2018-03-31 13F AVALONBAY CMNTYS COM 053484101 1,446,932 -87,638 237,963
2019-04-23 2017-12-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,534,570 -101,680 -6.21 273,783 -6.22 0.0749
2018-02-14 2017-12-31 13F AVALONBAY CMNTYS COM 053484101 1,534,570 -101,680 273,783
2017-11-14 2017-09-30 13F AVALONBAY CMNTYS COM 053484101 1,636,250 496,813 43.60 291,940 33.33 0.0874
2017-08-11 2017-06-30 13F AVALONBAY CMNTYS COM 053484101 1,139,437 -96,142 -7.78 218,966 -3.48 0.0662
2017-05-22 2017-03-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 1,235,579 -1,117,082 -47.48 226,852 -45.57 0.0697
2017-05-12 2017-03-31 13F AVALONBAY CMNTYS COM 053484101 1,235,579 226,852
2017-02-22 2016-12-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 2,352,661 -335,039 -12.47 416,774 -12.81 0.1364
2017-02-13 2016-12-31 13F AVALONBAY CMNTYS COM 053484101 2,352,661 416,774
2016-11-10 2016-09-30 13F AVALONBAY CMNTYS COM 053484101 2,687,700 -295,321 -9.90 477,980 -11.17 0.1632
2016-08-12 2016-06-30 13F AVALONBAY CMNTYS COM 053484101 2,983,021 -33,576 -1.11 538,108 -6.21 0.1944
2016-05-12 2016-03-31 13F AVALONBAY CMNTYS COM 053484101 3,016,597 -252,213 -7.72 573,757 -4.67 0.2208
2016-02-09 2015-12-31 13F AVALONBAY CMNTYS COM 053484101 3,268,810 -74,275 -2.22 601,886 2.99 0.2179
2016-02-08 2015-09-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 3,343,085 -444,800 -11.74 584,438 -3.49 0.2160
2015-11-09 2015-09-30 13F AVALONBAY CMNTYS COM 053484101 3,343,085 584,438
2015-08-12 2015-06-30 13F AVALONBAY CMNTYS COM 053484101 3,787,885 -178,845 -4.51 605,569 -12.39 0.2099
2015-05-14 2015-03-31 13F AVALONBAY CMNTYS COM 053484101 3,966,730 1,088 0.03 691,202 6.68 0.2546
2015-02-13 2014-12-31 13F AVALONBAY CMNTYS COM 053484101 3,965,642 147,297 3.86 647,948 20.38 0.2369
2014-12-16 2014-09-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 3,818,345 195,239 5.39 538,272 4.48 0.2070
2014-11-14 2014-09-30 13F AVALONBAY CMNTYS COM 053484101 3,818,345 538,272
2014-08-12 2014-06-30 13F AVALONBAY CMNTYS COM 053484101 3,623,106 -60,205 -1.63 515,169 6.51 0.8812
2014-05-13 2014-03-31 13F AVALONBAY CMNTYS COM 053484101 3,683,311 -228,864 -5.85 483,692 4.57 0.2026
2014-02-13 2013-12-31 13F AVALONBAY CMNTYS COM 053484101 3,912,175 150,363 4.00 462,536 -3.25 0.1967
2013-11-13 2013-09-30 13F AVALONBAY COMMUNITIES INC C COM 053484101 3,761,812 -36,044 -0.95 478,090 -6.69 0.2260
2013-08-08 2013-06-30 13F AVALONBAY COMMUNITIES INC C COM 053484101 3,797,856 3,797,856 512,370 0.2585
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.