Apartment Investment and Management Company
US ˙ NYSE ˙ US03748R7474

SecurityAIV / Apartment Investment and Management Company
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership65,830 shares
Latest Disclosed Value $ 267,599
Janus Henderson Group Plc ownership in AIV / Apartment Investment and Management Company

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 65,830 shares of Apartment Investment and Management Company (US:AIV) valued at $267,928 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 65,830 shares of Apartment Investment and Management Company. This represents a change in shares of 0.00% during the quarter. The current value of the position is $281,752 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)
2026-05-18 2026-03-31 13F/A-1 APARTMENT INVT & MGMT CL A 03748R747 65,830 0 0.00 268 -31.71 0.0001
2026-05-15 2026-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 65,830 0 268 0.0000
2026-02-17 2025-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 65,830 0 0.00 391 -25.10 0.0002
2025-11-14 2025-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 65,830 0 0.00 522 -8.26 0.0002
2025-08-14 2025-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 65,830 0 0.00 569 -1.22 0.0003
2025-05-15 2025-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 65,830 0 0.00 576 -3.68 0.0003
2025-02-14 2024-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 65,830 0 0.00 599 0.34 0.0003
2024-11-14 2024-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 65,830 0 0.00 596 9.36 0.0003
2024-08-14 2024-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 65,830 -683 -1.03 545 0.37 0.0003
2024-05-15 2024-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 66,513 3 0.00 544 4.22 0.0003
2024-02-14 2023-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 66,510 -124 -0.19 522 15.27 0.0003
2023-11-14 2023-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 66,634 0 0.00 453 -20.28 0.0003
2023-08-14 2023-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 66,634 -105 -0.16 567 10.74 0.0004
2023-05-15 2023-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 66,739 36,482 120.57 513 138.14 0.0003
2023-02-14 2022-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 30,257 -2 -0.01 216 -2.71 0.0002
2023-01-13 2022-09-30 13F/A-1 APARTMENT INVT & MGMT CL A 03748R747 30,259 61 0.20 221 14.51 0.0002
2022-11-14 2022-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 30,259 61 221 0.0001
2022-08-15 2022-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 30,198 -35 -0.12 193 -12.67 0.0001
2022-05-16 2022-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 30,233 20 0.07 221 -5.15 0.0001
2022-02-14 2021-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 30,213 15,195 101.18 233 126.21 0.0001
2021-11-16 2021-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 15,018 -79,078 -84.04 103 -97.51 0.0000
2019-02-06 2018-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 94,096 60,126 177.00 4,129 175.45 0.0026
2018-11-09 2018-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 33,970 33,970 1,499 0.0008
2018-08-10 2018-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 0 -30,321 -100.00 0 -100.00
2018-05-14 2018-03-31 13F APARTMENT INVT & MGMT CL A 03748R101 30,321 -298,646 -90.78 1,236 -91.40 0.0007
2018-03-12 2017-12-31 13F/A-1 APARTMENT INVT & MGMT CL A 03748R101 328,967 -293,876 -47.18 14,379 -47.36 0.0089
2018-02-09 2017-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 328,967 -293,876 14,379
2017-11-14 2017-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 622,843 -247,803 -28.46 27,318 -26.98 0.0175
2017-08-17 2017-06-30 13F/A-1 APARTMENT INVT & MGMT CL A 03748R101 870,646 342,246 64.77 37,412 134.41 0.0255
2017-08-14 2017-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 870,646 37,412
2014-05-08 2014-03-31 13F APARTMENT INVT & MGMT CL A 03748R101 528,400 -388,200 -42.35 15,960 -32.79 0.1554
2014-01-14 2013-12-31 13F APARTMENT INVT & MGMT CL A 03748R101 916,600 916,600 23,745 0.2399
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.