阿瓦隆灣社區股份有限公司
US ˙ NYSE ˙ US0534841012

SecurityAVB / AvalonBay Communities, Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership12,457 shares
Latest Disclosed Value $ 2,034,881
Assetmark, Inc reports 62.79% decrease in ownership of AVB / AvalonBay Communities, Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 12,457 shares of AvalonBay Communities, Inc. (US:AVB) valued at $2,034,851 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 33,480 shares of AvalonBay Communities, Inc.. This represents a change in shares of -62.79% during the quarter. The current value of the position is $2,356,740 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 CMNTYS COM 053484101 12,457 -21,023 -62.79 2,035 -66.49 0.0041
2026-01-23 2025-12-31 13F AVALONBAY CMNTYS COM 053484101 33,480 2,648 8.59 6,070 1.93 0.0124
2025-11-06 2025-09-30 13F AVALONBAY CMNTYS COM 053484101 30,832 10,211 49.52 5,956 41.92 0.0128
2025-08-04 2025-06-30 13F AVALONBAY CMNTYS COM 053484101 20,621 2,900 16.36 4,196 10.33 0.0099
2025-05-06 2025-03-31 13F AVALONBAY CMNTYS COM 053484101 17,721 477 2.77 3,803 0.26 0.0104
2025-02-06 2024-12-31 13F AVALONBAY CMNTYS COM 053484101 17,244 936 5.74 3,793 3.27 0.0103
2024-11-01 2024-09-30 13F AVALONBAY CMNTYS COM 053484101 16,308 956 6.23 3,673 15.65 0.0105
2024-08-13 2024-06-30 13F AVALONBAY CMNTYS COM 053484101 15,352 1,153 8.12 3,176 20.58 0.0098
2024-05-07 2024-03-31 13F AVALONBAY CMNTYS COM 053484101 14,199 734 5.45 2,635 4.52 0.0086
2024-02-09 2023-12-31 13F AVALONBAY CMNTYS COM 053484101 13,465 2,339 21.02 2,521 31.94 0.0091
2023-10-27 2023-09-30 13F AVALONBAY CMNTYS COM 053484101 11,126 564 5.34 1,911 -4.45 0.0076
2023-08-11 2023-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 10,562 288 2.80 1,999 15.82 0.0078
2023-05-05 2023-03-31 13F AVALONBAY CMNTYS INC COM COM 053484101 10,274 2,144 26.37 1,727 31.45 0.0071
2023-02-10 2022-12-31 13F AVALONBAY CMNTYS COM 053484101 8,130 486 6.36 1,313 -6.75 0.0057
2022-11-01 2022-09-30 13F AVALONBAY CMNTYS COM 053484101 7,644 1,304 20.57 1,408 14.29 0.0066
2022-08-03 2022-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 6,340 1,659 35.44 1,232 5.93 0.0055
2022-05-13 2022-03-31 13F AVALONBAY CMNTYS INC COM COM 053484101 4,681 997 27.06 1,163 24.92 0.0049
2022-02-14 2021-12-31 13F AVALONBAY CMNTYS INC COM COM 053484101 3,684 536 17.03 931 33.38 0.0038
2021-11-12 2021-09-30 13F AVALONBAY CMNTYS INC COM COM 053484101 3,148 1,361 76.16 698 87.13 0.0031
2021-08-16 2021-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 1,787 104 6.18 373 19.94 0.0017
2021-05-14 2021-03-31 13F AVALONBAY CMNTYS COM 053484101 1,683 -43 -2.49 311 12.27 0.0016
2021-02-10 2020-12-31 13F AVALONBAY CMNTYS INC COM COM 053484101 1,726 248 16.78 277 25.34 0.0015
2020-11-13 2020-09-30 13F AVALONBAY CMNTYS INC COM COM 053484101 1,478 315 27.09 221 22.78 0.0014
2020-08-11 2020-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 1,163 426 57.80 180 66.67 0.0013
2020-05-12 2020-03-31 13F AVALONBAY CMNTYS INC COM COM 053484101 737 -24,727 -97.11 108 -97.98 0.0009
2020-02-11 2019-12-31 13F AVALONBAY CMNTYS INC COM COM 053484101 25,464 25,016 5,583.93 5,340 5,462.50 0.0406
2019-11-13 2019-09-30 13F AVALONBAY CMNTYS INC COM COM 053484101 448 4 0.90 96 6.67 0.0008
2019-08-14 2019-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 444 4 0.91 90 2.27 0.0007
2019-05-14 2019-03-31 13F AVALONBAY CMNTYS INC COM COM 053484101 440 -16 -3.51 88 11.39 0.0008
2019-02-13 2018-12-31 13F AVALONBAY CMNTYS INC COM COM 053484101 456 3 0.66 79 -3.66 0.0008
2018-11-13 2018-09-30 13F AVALONBAY CMNTYS INC COM COM 053484101 453 28 6.59 82 12.33 0.0007
2018-08-01 2018-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 425 -731 -63.24 73 -61.58 0.0007
2018-05-16 2018-03-31 13F AVALONBAY CMNTYS INC COM COM 053484101 1,156 354 44.14 190 32.87 0.0020
2018-02-13 2017-12-31 13F AVALONBAY CMNTYS INC COM COM 053484101 802 -205 -20.36 143 -20.56 0.0015
2017-11-08 2017-09-30 13F AVALONBAY CMNTYS INC COM COM 053484101 1,007 -32,383 -96.98 180 -97.19 0.0020
2017-08-14 2017-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 33,390 1,924 6.11 6,417 11.08 0.0807
2017-09-15 2017-03-31 13F/A-1 AVALONBAY CMNTYS INC COM COM 053484101 31,466 3,640 13.08 5,777 17.20 0.0759
2017-05-08 2017-03-31 13F AVALONBAY CMNTYS INC COM COM 053484101 31,466 3,640 5,777
2017-09-15 2016-12-31 13F/A-1 AVALONBAY CMNTYS INC COM COM 053484101 27,826 -898 -3.13 4,929 -3.50 0.0724
2017-02-14 2016-12-31 13F AVALONBAY CMNTYS INC COM COM 053484101 27,826 -898 4,929
2017-09-14 2016-09-30 13F/A-1 AVALONBAY CMNTYS INC COM COM 053484101 28,724 -8,206 -22.22 5,108 -23.33 0.0777
2016-11-04 2016-09-30 13F AVALONBAY CMNTYS INC COM COM 053484101 28,724 -8,206 5,108
2017-09-14 2016-06-30 13F/A-1 AVALONBAY CMNTYS INC COM COM 053484101 36,930 -844 -2.23 6,662 -7.28 0.1120
2016-08-08 2016-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 36,930 -844 6,662
2017-09-14 2016-03-31 13F/A-1 AVALONBAY CMNTYS INC COM COM 053484101 37,774 781 2.11 7,185 5.48 0.1254
2016-05-13 2016-03-31 13F AVALONBAY CMNTYS INC COM COM 053484101 37,774 781 7,185
2017-09-14 2015-12-31 13F/A-1 AVALONBAY CMNTYS INC COM COM 053484101 36,993 6,739 22.27 6,812 28.80 0.1262
2016-02-12 2015-12-31 13F AVALONBAY CMNTYS INC COM COM 053484101 36,993 6,739 6,812
2016-01-05 2015-09-30 13F/A-1 AVALONBAY CMNTYS INC COM COM 053484101 30,254 15,740 108.45 5,289 127.78 0.1103
2015-11-10 2015-09-30 13F AVALONBAY CMNTYS INC COM COM 053484101 30,254 5,289
2015-08-13 2015-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 14,514 1,009 7.47 2,322 -1.32 0.0483
2015-05-12 2015-03-31 13F AVALONBAY CMNTYS INC COM COM 053484101 13,505 13,505 0.00 2,353 0.0501
2015-02-03 2014-12-31 13F AVALONBAY CMNTYS INC COM COM 053484101 0 -13,127 -100.00 0 -100.00
2014-11-10 2014-09-30 13F AVALONBAY CMNTYS INC COM COM 053484101 13,127 -1,773 -11.90 1,851 -12.65 0.0428
2014-08-12 2014-06-30 13F AVALONBAY CMNTYS INC COM COM 053484101 14,900 14,900 2,119 0.0451
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.