AvalonBay 커뮤니티, Inc.
MX ˙ BMV ˙ US0534841012
SecurityMX:AVB / AvalonBay Communities, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership283,918 shares
Latest Disclosed Value $ 46,377,903
Rhumbline Advisers reports 0.64% decrease in ownership of AVB / AvalonBay Communities, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 283,918 shares of AvalonBay Communities, Inc. (MX:AVB) valued at $46,377,903 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 285,757 shares of AvalonBay Communities, Inc.. This represents a change in shares of -0.64% during the quarter.

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)
2026-05-12 2026-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 283,918 -1,839 -0.64 46,378 -10.49 0.0397
2026-02-13 2025-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 285,757 -9,138 -3.10 51,810 -9.05 0.0419
2025-11-06 2025-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 294,895 -14,526 -4.69 56,965 -9.53 0.0458
2025-08-12 2025-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 309,421 10,324 3.45 62,967 -1.91 0.0539
2025-05-29 2025-03-31 13F/A-1 AVALONBAY CMNTYS REIT COM 053484101 299,097 13,655 4.78 64,192 2.24 0.0600
2025-04-08 2025-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 299,097 13,655 64,192 0.0600
2025-05-29 2024-12-31 13F/A-1 AVALONBAY CMNTYS REIT COM 053484101 285,442 -4,170 -1.44 62,789 -3.75 0.0562
2025-01-30 2024-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 285,442 -4,170 62,789 0.0562
2024-11-12 2024-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 289,612 -4,597 -1.56 65,235 7.17 0.0588
2024-08-01 2024-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 294,209 -6,257 -2.08 60,869 9.17 0.0572
2024-05-09 2024-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 300,466 2,688 0.90 55,754 0.01 0.0535
2024-02-08 2023-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 297,778 -1,224 -0.41 55,750 8.57 0.0584
2023-11-09 2023-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 299,002 -241 -0.08 51,350 -9.33 0.0596
2023-08-08 2023-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 299,243 3,481 1.18 56,638 115,485.71 0.0634
2023-05-11 2023-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 295,762 -221 -0.07 50 -99.90 0.0613
2023-02-14 2022-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 295,983 9,600 3.35 47,807 -9.37 0.0643
2022-11-10 2022-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 286,383 7,984 2.87 52,749 -2.46 0.0786
2022-08-11 2022-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 278,399 25,217 9.96 54,079 -14.00 0.0789
2022-05-12 2022-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 253,182 3,447 1.38 62,883 -0.31 0.0809
2022-02-10 2021-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 249,735 3,242 1.32 63,081 15.46 0.0773
2021-11-12 2021-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 246,493 -7,806 -3.07 54,633 2.95 0.0739
2021-08-05 2021-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 254,299 -11,474 -4.32 53,070 8.22 0.0696
2021-05-06 2021-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 265,773 -10,315 -3.74 49,038 10.71 0.0666
2021-02-10 2020-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 276,088 1,094 0.40 44,293 7.85 0.0611
2020-11-12 2020-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 274,994 -3,261 -1.17 41,068 -4.56 0.0644
2020-08-13 2020-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 278,255 -32,655 -10.50 43,029 -5.96 0.0719
2020-05-06 2020-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 310,910 26,491 9.31 45,757 -23.28 0.0959
2020-02-05 2019-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 284,419 16,926 6.33 59,643 3.55 0.0997
2019-10-23 2019-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 267,493 8,409 3.25 57,599 9.42 0.1053
2019-08-14 2019-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 259,084 15,900 6.54 52,641 7.84 0.0988
2019-05-01 2019-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 243,184 -24,845 -9.27 48,814 4.64 0.0945
2019-01-31 2018-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 268,029 775 0.29 46,650 -3.64 0.1015
2018-11-07 2018-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 267,254 -10,704 -3.85 48,413 1.33 0.0935
2018-08-06 2018-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 277,958 2,413 0.88 47,778 5.43 0.0964
2018-05-02 2018-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 275,545 -15,185 -5.22 45,316 -12.63 0.0946
2018-02-09 2017-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 290,730 2,182 0.76 51,869 0.75 0.1053
2017-11-06 2017-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 288,548 19,809 7.37 51,483 -0.31 0.1119
2017-08-02 2017-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 268,739 903 0.34 51,644 5.02 0.1179
2017-05-02 2017-03-31 13F AVALONBAY CMNTYS REIT COM 053484101 267,836 15,356 6.08 49,175 9.94 0.1149
2017-01-27 2016-12-31 13F AVALONBAY CMNTYS REIT COM 053484101 252,480 28,680 12.82 44,727 12.38 0.1133
2016-11-08 2016-09-30 13F AVALONBAY CMNTYS REIT COM 053484101 223,800 -3,510 -1.54 39,801 -2.93 0.1097
2016-08-11 2016-06-30 13F AVALONBAY CMNTYS REIT COM 053484101 227,310 16,224 7.69 41,004 2.13 0.1215
2016-05-02 2016-03-31 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 211,086 5,287 2.57 40,149 5.95 0.1246
2016-02-03 2015-12-31 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 205,799 1,407 0.69 37,894 6.05 0.1219
2015-11-04 2015-09-30 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 204,392 4,441 2.22 35,732 11.78 0.1216
2015-08-04 2015-06-30 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 199,951 8,471 4.42 31,966 -4.19 0.1019
2015-05-12 2015-03-31 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 191,480 17,466 10.04 33,365 17.35 0.0962
2015-02-06 2014-12-31 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 174,014 2,421 1.41 28,432 17.54 0.0826
2014-11-12 2014-09-30 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 171,593 1,675 0.99 24,189 0.12 0.0727
2014-08-06 2014-06-30 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 169,918 -10,594 -5.87 24,161 1.92 0.0709
2014-05-06 2014-03-31 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 180,512 -3,262 -1.78 23,705 9.10 0.0703
2014-02-03 2013-12-31 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 183,774 -9,563 -4.95 21,728 -11.57 0.0641
2013-11-05 2013-09-30 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 193,337 2,305 1.21 24,571 -4.66 0.0761
2013-08-07 2013-06-30 13F AVALONBAY COMMUNITIES INC REIT COM 053484101 191,032 191,032 25,772 0.0828
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.