AvalonBay Communities, Inc.
MX ˙ BMV ˙ US0534841012
SecurityMX:AVB / AvalonBay Communities, Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership18,989 shares
Latest Disclosed Value $ 3,101,982
Rockefeller Capital Management L.P. reports 16.93% decrease in ownership of AVB / AvalonBay Communities, Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 18,989 shares of AvalonBay Communities, Inc. (MX:AVB) valued at $3,101,982 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 22,860 shares of AvalonBay Communities, Inc.. This represents a change in shares of -16.93% 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)
2026-05-14 2026-03-31 13F AVALONBAY CMNTYS COM 053484101 18,989 -3,871 -16.93 3,102 -25.64 0.0055
2026-03-16 2025-12-31 13F/A-1 AVALONBAY CMNTYS COM 053484101 22,860 -2,597 -10.20 4,170 -15.72 0.0075
2026-02-14 2025-12-31 13F AVALONBAY CMNTYS COM 053484101 22,860 -2,597 4,170 0.0038
2025-11-14 2025-09-30 13F AVALONBAY CMNTYS COM 053484101 25,457 -7,365 -22.44 4,948 -29.01 0.0097
2025-08-14 2025-06-30 13F/A-1 AVALONBAY CMNTYS COM 053484101 32,822 -564 -1.69 6,970 -3.26 0.0153
2025-08-08 2025-06-30 13F AVALONBAY CMNTYS COM 053484101 32,822 -564 6,970 0.0088
2025-05-14 2025-03-31 13F AVALONBAY CMNTYS COM 053484101 33,386 22,286 200.77 7,206 195.29 0.0178
2025-02-13 2024-12-31 13F AVALONBAY CMNTYS COM 053484101 11,100 551 5.22 2,441 2.78 0.0063
2024-11-14 2024-09-30 13F AVALONBAY CMNTYS COM 053484101 10,549 -1,099 -9.44 2,375 -1.45 0.0064
2024-08-12 2024-06-30 13F AVALONBAY CMNTYS COM 053484101 11,648 11,648 2,409 0.0068
2023-08-14 2023-06-30 13F AVALONBAY CMNTYS COM 053484101 0 -1,214 -100.00 0 0.0000
2023-05-16 2023-03-31 13F AVALONBAY CMNTYS COM 053484101 1,214 -97 -7.40 0 -100.00 0.0009
2023-03-06 2022-12-31 13F AVALONBAY CMNTYS COM 053484101 1,311 -55 -4.03 210 -16.33 0.0011
2022-11-02 2022-09-30 13F AVALONBAY CMNTYS COM 053484101 1,366 -8 -0.58 251 -5.64 0.0013
2022-08-12 2022-06-30 13F AVALONBAY CMNTYS COM 053484101 1,374 736 115.36 266 68.35 0.0014
2022-05-13 2022-03-31 13F AVALONBAY CMNTYS COM 053484101 638 178 38.70 158 37.39 0.0008
2022-02-14 2021-12-31 13F AVALONBAY CMNTYS COM 053484101 460 -158 -25.57 115 -15.44 0.0005
2021-11-12 2021-09-30 13F AVALONBAY CMNTYS COM 053484101 618 58 10.36 136 17.24 0.0007
2021-08-10 2021-06-30 13F AVALONBAY CMNTYS COM 053484101 560 128 29.63 116 46.84 0.0007
2021-05-11 2021-03-31 13F AVALONBAY CMNTYS COM 053484101 432 -106 -19.70 79 -7.06 0.0005
2021-02-12 2020-12-31 13F AVALONBAY CMNTYS COM 053484101 538 -70 -11.51 85 -5.56 0.0006
2020-11-13 2020-09-30 13F AVALONBAY CMNTYS COM 053484101 608 -310 -33.77 90 -36.62 0.0008
2020-08-12 2020-06-30 13F AVALONBAY CMNTYS COM 053484101 918 837 1,033.33 142 1,083.33 0.0015
2020-05-12 2020-03-31 13F AVALONBAY CMNTYS COM 053484101 81 -49 -37.69 12 -55.56 0.0002
2020-02-07 2019-12-31 13F AVALONBAY CMNTYS COM 053484101 130 39 42.86 27 35.00 0.0003
2019-11-12 2019-09-30 13F AVALONBAY CMNTYS COM 053484101 91 0 0.00 20 5.26 0.0003
2019-08-09 2019-06-30 13F AVALONBAY CMNTYS COM 053484101 91 -205 -69.26 19 -67.80 0.0003
2019-05-10 2019-03-31 13F AVALONBAY CMNTYS COM 053484101 296 162 120.90 59 156.52 0.0008
2019-02-12 2018-12-31 13F AVALONBAY CMNTYS COM 053484101 134 134 23 0.0004
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.