AvalonBay Communities, Inc.
US ˙ NYSE ˙ US0534841012

SecurityAVB / AvalonBay Communities, Inc.
InstitutionGAM Holding AG
Latest Disclosed Ownership18,726 shares
Latest Disclosed Value $ 3,395,211
GAM Holding AG ownership in AVB / AvalonBay Communities, Inc.

On February 17, 2026 - GAM Holding AG filed a 13F-HR form disclosing ownership of 18,726 shares of AvalonBay Communities, Inc. (US:AVB) valued at $3,395,211 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 6, 2020 disclosing 0 shares of AvalonBay Communities, Inc.. The current value of the position is $3,542,772 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)
2026-02-17 2025-12-31 13F AVALONBAY CMNTYS COM 053484101 18,726 18,726 3,395 0.1646
2020-11-06 2020-09-30 13F AVALONBAY CMNTYS COM 053484101 0 -3,932 -100.00 0 -100.00
2020-08-10 2020-06-30 13F AVALONBAY CMNTYS COM 053484101 3,932 1,480 60.36 608 68.42 0.0378
2020-05-12 2020-03-31 13F AVALONBAY CMNTYS COM 053484101 2,452 2,452 -92.11 361 -90.17 0.0245
2017-11-14 2017-09-30 13F AVALONBAY CMNTYS COM 053484101 0 -23,422 -100.00 0 -100.00
2017-08-07 2017-06-30 13F AVALONBAY CMNTYS COM 053484101 23,422 -2,351 -9.12 4,501 -4.88 0.0664
2017-05-12 2017-03-31 13F AVALONBAY CMNTYS COM 053484101 25,773 884 3.55 4,732 7.33 0.0748
2017-02-10 2016-12-31 13F AVALONBAY CMNTYS COM 053484101 24,889 14,140 131.55 4,409 130.60 0.0773
2016-11-07 2016-09-30 13F AVALONBAY CMNTYS COM 053484101 10,749 0 0.00 1,912 -1.39 0.0336
2016-08-11 2016-06-30 13F AVALONBAY CMNTYS COM 053484101 10,749 2,411 28.92 1,939 22.26 0.0301
2016-05-13 2016-03-31 13F AVALONBAY CMNTYS COM 053484101 8,338 599 7.74 1,586 11.30 0.0264
2016-02-08 2015-12-31 13F AVALONBAY CMNTYS COM 053484101 7,739 2,291 42.05 1,425 49.68 0.0222
2015-11-12 2015-09-30 13F AVALONBAY CMNTYS COM 053484101 5,448 79 1.47 952 10.96 0.0164
2015-07-27 2015-06-30 13F AVALONBAY CMNTYS COM 053484101 5,369 1,917 55.53 858 42.52 0.0124
2015-05-12 2015-03-31 13F AVALONBAY CMNTYS COM 053484101 3,452 1,360 65.01 602 76.02 0.0090
2015-02-06 2014-12-31 13F AVALONBAY CMNTYS COM 053484101 2,092 0 0.00 342 15.93 0.0051
2014-11-12 2014-09-30 13F AVALONBAY CMNTYS COM 053484101 2,092 6 0.29 295 -0.67 0.0043
2014-08-11 2014-06-30 13F AVALONBAY CMNTYS COM 053484101 2,086 13 0.63 297 9.19 0.0045
2014-05-15 2014-03-31 13F AVALONBAY CMNTYS COM 053484101 2,073 -29,000 -93.33 272 -92.60 0.0044
2014-02-12 2013-12-31 13F AVALONBAY CMNTYS COM 053484101 31,073 -1,800 -5.48 3,674 -12.06 0.0641
2013-11-12 2013-09-30 13F AVALONBAY CMNTYS COM 053484101 32,873 5,900 21.87 4,178 14.81 0.0782
2013-08-13 2013-06-30 13F AVALONBAY COMMUNITIES COM 053484101 26,973 26,973 3,639 0.0796
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.