AvalonBay Communities, Inc.
US ˙ NYSE ˙ US0534841012

SecurityAVB / AvalonBay Communities, Inc.
InstitutionAtlantic Trust, LLC
Latest Disclosed Ownership156 shares
Latest Disclosed Value $ 25,483
Atlantic Trust, LLC reports 56.00% increase in ownership of AVB / AvalonBay Communities, Inc.

On May 6, 2026 - Atlantic Trust, LLC filed a 13F-HR form disclosing ownership of 156 shares of AvalonBay Communities, Inc. (US:AVB) valued at $25,483 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 100 shares of AvalonBay Communities, Inc.. This represents a change in shares of 56.00% during the quarter. The current value of the position is $28,578 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)
2026-05-06 2026-03-31 13F AvalonBay Communities Com 053484101 156 56 56.00 25 38.89 0.0042
2026-02-09 2025-12-31 13F AvalonBay Communities Com 053484101 100 0 0.00 18 -5.26 0.0029
2025-11-10 2025-09-30 13F AvalonBay Communities Com 053484101 100 -62 -38.27 19 -40.62 0.0033
2025-08-08 2025-06-30 13F AVALONBAY CMNTYS COM 053484101 162 62 62.00 33 52.38 0.0062
2025-05-09 2025-03-31 13F AvalonBay Communities Com 053484101 100 100 21 0.0048
2023-08-08 2023-06-30 13F AvalonBay Communities COM 053484101 0 -2,800 -100.00 0 -100.00
2023-05-10 2023-03-31 13F AvalonBay Communities COM 053484101 2,800 0 0.00 471 0.1501
2023-02-01 2022-12-31 13F AvalonBay Communities COM 053484101 2,800 -29 -1.03 0 -100.00 0.1507
2022-11-14 2022-09-30 13F AVALONBAY CMNTYS COM 053484101 2,829 29 1.04 521 -4.23 0.1813
2022-08-11 2022-06-30 13F AvalonBay Communities COM 053484101 2,800 2,800 544 0.4137
2022-02-08 2021-12-31 13F AvalonBay Communities Com 053484101 0 -2,800 -100.00 0 -100.00
2021-11-02 2021-09-30 13F AvalonBay Communities Com 053484101 2,800 2,591 1,239.71 621 6.34 0.3933
2021-08-12 2021-06-30 13F AvalonBay Communities Com 053484101 209 -2,591 -92.54 584 12.96 0.3810
2021-04-30 2021-03-31 13F AvalonBay Communities Com 053484101 2,800 0 0.00 517 15.14 0.3828
2021-02-16 2020-12-31 13F AvalonBay Communities Com 053484101 2,800 0 0.00 449 7.42 0.2670
2020-10-23 2020-09-30 13F AvalonBay Communities Com 053484101 2,800 0 0.00 418 -3.46 0.3320
2020-08-17 2020-06-30 13F AvalonBay Communities Com 053484101 2,800 0 0.00 433 5.10 0.3648
2020-05-12 2020-03-31 13F AvalonBay Communities Com 053484101 2,800 0 0.00 412 -29.81 0.3727
2020-02-03 2019-12-31 13F AvalonBay Communities Com 053484101 2,800 0 0.00 587 -2.65 0.4300
2019-11-07 2019-09-30 13F AvalonBay Communities Com 053484101 2,800 0 0.00 603 5.98 0.4700
2019-07-31 2019-06-30 13F AvalonBay Communities Com 053484101 2,800 0 0.00 569 1.07 0.4543
2019-05-13 2019-03-31 13F AvalonBay Communities Com 053484101 2,800 0 0.00 563 15.61 0.4699
2019-02-13 2018-12-31 13F/A-1 AvalonBay Communities Com 053484101 2,800 0 0.00 487 -3.94 0.4527
2019-02-13 2018-12-31 13F AvalonBay Communities Com 053484101 2,800 487
2018-11-15 2018-09-30 13F AvalonBay Communities COM 053484101 2,800 0 0.00 507 5.41 0.3890
2018-08-20 2018-06-30 13F AvalonBay Communities Com 053484101 2,800 -300 -9.68 481 -5.69 0.4296
2018-05-15 2018-03-31 13F AvalonBay Communities COM 053484101 3,100 0 0.00 510 -7.78 0.4376
2018-02-14 2017-12-31 13F AvalonBay Communities Com 053484101 3,100 0 0.00 553 0.00 0.3780
2017-11-17 2017-09-30 13F AvalonBay Communities Com 053484101 3,100 0 0.00 553 188.02 0.4114
2017-08-21 2017-06-30 13F AvalonBay Communities Com 053484101 3,100 0 0.00 192 -66.26 0.1515
2017-06-19 2017-03-31 13F AvalonBay Communities COM 053484101 3,100 0 0.00 569 3.64 0.4710
2017-06-14 2016-12-31 13F AvalonBay Communities COM 053484101 3,100 3,100 549 0.4932
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.