AvalonBay Communities, Inc.
US ˙ NYSE ˙ US0534841012

SecurityAVB / AvalonBay Communities, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership8,289 shares
Latest Disclosed Value $ 1,354,008
Quantbot Technologies LP ownership in AVB / AvalonBay Communities, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 8,289 shares of AvalonBay Communities, Inc. (US:AVB) valued at $1,354,008 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 12, 2025 disclosing 0 shares of AvalonBay Communities, Inc.. The current value of the position is $1,518,462 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)
2026-05-13 2026-03-31 13F AVALONBAY COMMUNITIES COM 053484101 8,289 8,289 1,354 0.0554
2025-11-12 2025-09-30 13F AVALONBAY COMMUNITIES COM 053484101 0 -742 -100.00 0 -100.00
2025-08-13 2025-06-30 13F AVALONBAY COMMUNITIES COM 053484101 742 -7,039 -90.46 151 -91.01 0.0039
2025-05-13 2025-03-31 13F AVALONBAY COMMUNITIES COM 053484101 7,781 5,774 287.69 1,670 278.46 0.0532
2025-02-11 2024-12-31 13F AVALONBAY COMMUNITIES COM 053484101 2,007 2,007 441 0.0161
2024-11-13 2024-09-30 13F AVALONBAY COMMUNITIES COM 053484101 0 -790 -100.00 0 -100.00
2024-08-09 2024-06-30 13F AVALONBAY COMMUNITIES COM 053484101 790 790 163 0.0079
2023-08-08 2023-06-30 13F AVALONBAY COMMUNITIES COM 053484101 0 -10,071 -100.00 0 -100.00
2023-05-12 2023-03-31 13F AVALONBAY COMMUNITIES COM 053484101 10,071 -9,630 -48.88 1,693 -46.83 0.1198
2023-02-13 2022-12-31 13F AVALONBAY COMMUNITIES COM 053484101 19,701 19,701 3,182 0.2283
2022-11-07 2022-09-30 13F AVALONBAY COMMUNITIES COM 053484101 0 -2,320 -100.00 0 -100.00
2022-08-09 2022-06-30 13F AVALONBAY COMMUNITIES COM 053484101 2,320 -2,569 -52.55 450 -62.93 0.0414
2022-05-16 2022-03-31 13F AVALONBAY COMMUNITIES COM 053484101 4,889 -23,925 -83.03 1,214 -83.32 0.1059
2022-02-11 2021-12-31 13F AVALONBAY COMMUNITIES COM 053484101 28,814 28,814 7,278 0.5903
2021-08-12 2021-06-30 13F AVALONBAY COMMUNITIES COM 053484101 0 -4,261 -100.00 0 -100.00
2021-05-14 2021-03-31 13F AVALONBAY COMMUNITIES COM 053484101 4,261 -4,927 -53.62 786 -46.68 0.0748
2021-02-12 2020-12-31 13F AVALONBAY COMMUNITIES COM 053484101 9,188 -18,262 -66.53 1,474 -64.04 0.1532
2020-11-16 2020-09-30 13F AVALONBAY COMMUNITIES COM 053484101 27,450 26,455 2,658.79 4,099 2,579.08 0.4702
2020-08-13 2020-06-30 13F AVALONBAY COMMUNITIES COM 053484101 995 -2,118 -68.04 153 -66.59 0.0202
2020-05-13 2020-03-31 13F AVALONBAY COMMUNITIES COM 053484101 3,113 -1,495 -32.44 458 -52.59 0.2985
2020-02-10 2019-12-31 13F AVALONBAY COMMUNITIES COM 053484101 4,608 4,608 966 0.0958
2019-11-12 2019-09-30 13F AVALONBAY COMMUNITIES COM 053484101 0 -31,989 -100.00 0 -100.00
2019-08-13 2019-06-30 13F AVALONBAY COMMUNITIES COM 053484101 31,989 31,989 6,499 0.6501
2019-05-13 2019-03-31 13F AVALONBAY COMMUNITIES COM 053484101 0 -30,071 -100.00 0 -100.00
2019-02-13 2018-12-31 13F AVALONBAY COMMUNITIES COM 053484101 30,071 30,071 5,233 0.5123
2018-11-13 2018-09-30 13F AVALONBAY COMMUNITIES COM 053484101 0 -12,899 -100.00 0 -100.00
2018-08-13 2018-06-30 13F AVALONBAY COMMUNITIES COM 053484101 12,899 1,783 16.04 2,217 21.28 0.1509
2018-05-11 2018-03-31 13F AVALONBAY COMMUNITIES COM 053484101 11,116 11,116 1,828 0.1573
2018-02-12 2017-12-31 13F AVALONBAY COMMUNITIES COM 053484101 0 -13,112 -100.00 0 -100.00
2017-11-07 2017-09-30 13F AVALONBAY COMMUNITIES COM 053484101 13,112 13,112 2,339 0.2242
2016-10-31 2016-09-30 13F AVALONBAY COMMUNITIES COM 053484101 0 -40,323 -100.00 0 -100.00
2016-08-02 2016-06-30 13F AVALONBAY COMMUNITIES COM 053484101 40,323 40,323 0.00 7,273 0.7740
2015-01-27 2014-12-31 13F AVALONBAY COMMUNITIES COM 053484101 0 -4,504 -100.00 0 -100.00
2014-10-15 2014-09-30 13F AVALONBAY COMMUNITIES COM 053484101 4,504 3,604 400.44 634 498.11 0.0872
2014-01-31 2013-12-31 13F AVALONBAY COMMUNITIES COM 053484101 900 500 125.00 106 112.00 0.0519
2013-10-28 2013-09-30 13F AVALONBAY COMMUNITIES COM 053484101 400 400 50 0.0310
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.