Apartment Investment and Management Company
US ˙ NYSE ˙ US03748R7474

SecurityAIV / Apartment Investment and Management Company
InstitutionCitigroup Inc
Latest Disclosed Ownership440,658 shares
Latest Disclosed Value $ 1,793,478
Citigroup Inc reports 188.60% increase in ownership of AIV / Apartment Investment and Management Company

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 440,658 shares of Apartment Investment and Management Company (US:AIV) valued at $1,793,478 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 152,690 shares of Apartment Investment and Management Company. This represents a change in shares of 188.60% during the quarter. The current value of the position is $1,886,016 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)
2026-05-11 2026-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 440,658 287,968 188.60 1,793 97.90 0.0008
2026-02-13 2025-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 152,690 40,935 36.63 907 2.26 0.0004
2025-11-10 2025-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 111,755 -18,542 -14.23 886 -21.38 0.0004
2025-08-11 2025-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 130,297 3,483 2.75 1,127 1.08 0.0006
2025-05-12 2025-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 126,814 2,644 2.13 1,116 -1.15 0.0006
2025-02-12 2024-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 124,170 14,899 13.63 1,129 14.29 0.0007
2024-11-12 2024-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 109,271 51,835 90.25 988 107.35 0.0006
2024-08-12 2024-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 57,436 1,118 1.99 476 3.25 0.0003
2024-05-10 2024-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 56,318 -11,426 -16.87 461 -13.02 0.0003
2024-02-09 2023-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 67,744 22,784 50.68 530 73.77 0.0004
2023-12-06 2023-09-30 13F/A-1 APARTMENT INVT & MGMT CL A 03748R747 44,960 -37,013 -45.15 306 -56.30 0.0002
2023-11-09 2023-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 44,960 -37,013 306 0.0001
2023-08-10 2023-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 81,973 64,773 376.59 698 428.79 0.0005
2023-05-11 2023-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 17,200 -9,365 -35.25 132 -30.16 0.0001
2023-02-09 2022-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 26,565 -20,906 -44.04 189 -45.38 0.0002
2022-11-10 2022-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 47,471 -11,284 -19.21 346 -7.98 0.0002
2022-08-10 2022-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 58,755 -8,573 -12.73 376 -23.89 0.0003
2022-05-12 2022-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 67,328 -81,769 -54.84 494 -57.08 0.0003
2022-02-10 2021-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 149,097 9,166 6.55 1,151 20.02 0.0006
2021-11-10 2021-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 139,931 -116,190 -45.37 959 -44.21 0.0006
2021-08-10 2021-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 256,121 -45,562 -15.10 1,719 -7.23 0.0010
2021-05-13 2021-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 301,683 -713,013 -70.27 1,853 -65.41 0.0012
2021-02-11 2020-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 1,014,696 723,419 248.36 5,357 -58.09 0.0032
2019-02-12 2018-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 291,277 108,506 59.37 12,781 58.46 0.0129
2018-11-13 2018-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 182,771 -113,773 -38.37 8,066 -35.70 0.0072
2018-08-10 2018-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 296,544 -4,472 -1.49 12,544 2.27 0.0115
2018-05-11 2018-03-31 13F APARTMENT INVT & MGMT CL A 03748R101 301,016 152,723 102.99 12,266 89.23 0.0101
2018-02-12 2017-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 148,293 -40,755 -21.56 6,482 -21.83 0.0052
2017-11-13 2017-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 189,048 52,852 38.81 8,292 41.70 0.0068
2017-08-11 2017-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 136,196 -198,445 -59.30 5,852 -60.57 0.0053
2017-05-12 2017-03-31 13F APARTMENT INVT & MGMT CL A 03748R101 334,641 13,537 4.22 14,841 1.69 0.0132
2017-02-10 2016-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 321,104 -92,902 -22.44 14,594 -23.21 0.0132
2016-11-10 2016-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 414,006 227,544 122.03 19,006 130.82 0.0178
2016-08-12 2016-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 186,462 38,734 26.22 8,234 33.30 0.0084
2016-05-13 2016-03-31 13F APARTMENT INVT & MGMT CL A 03748R101 147,728 -722,294 -83.02 6,177 -82.26 0.0069
2016-02-12 2015-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 870,022 129,381 17.47 34,827 27.02 0.0347
2015-11-13 2015-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 740,641 -42,037 -5.37 27,418 -5.14 0.0257
2015-08-13 2015-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 782,678 585,954 297.86 28,904 273.34 0.0257
2015-05-14 2015-03-31 13F APARTMENT INVT & MGMT CL A 03748R101 196,724 21,414 12.21 7,742 18.89 0.0075
2015-02-17 2014-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 175,310 -75,339 -30.06 6,512 -18.34 0.0058
2014-11-14 2014-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 250,649 115,405 85.33 7,975 82.75 0.0070
2014-08-14 2014-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 135,244 43,314 47.12 4,364 57.09 0.0042
2014-05-15 2014-03-31 13F APARTMENT INVT & MGMT CL A 03748R101 91,930 -13,904 -13.14 2,778 1.35 0.0028
2014-02-14 2013-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 105,834 -39,326 -27.09 2,741 -32.40 0.0025
2013-11-14 2013-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 145,160 -65,797 -31.19 4,055 -36.01 0.0038
2013-08-14 2013-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 210,957 210,957 6,337 0.0062
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.