Apartment Investment and Management Company
US ˙ NYSE ˙ US03748R7474

SecurityAIV / Apartment Investment and Management Company
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership124,600 shares
Latest Disclosed Value $ 507,122
Engineers Gate Manager LP reports 56.64% increase in ownership of AIV / Apartment Investment and Management Company

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 124,600 shares of Apartment Investment and Management Company (US:AIV) valued at $507,122 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 79,546 shares of Apartment Investment and Management Company. This represents a change in shares of 56.64% during the quarter. The current value of the position is $533,288 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)
2026-05-15 2026-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 124,600 45,054 56.64 507 7.42 0.0063
2026-02-17 2025-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 79,546 -1,116 -1.38 473 -26.13 0.0056
2025-11-14 2025-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 80,662 80,662 640 0.0073
2025-05-15 2025-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 0 -24,056 -100.00 0 -100.00
2025-02-14 2024-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 24,056 1,428 6.31 219 6.86 0.0038
2024-11-14 2024-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 22,628 6,488 40.20 205 53.38 0.0040
2024-08-14 2024-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 16,140 16,140 134 0.0030
2024-02-14 2023-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 0 -27,475 -100.00 0 -100.00
2023-11-14 2023-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 27,475 -16,703 -37.81 187 -50.53 0.0069
2023-08-14 2023-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 44,178 44,178 376 0.0142
2023-05-15 2023-03-31 13F APARTMENT INVT & MGMT CL A 03748R747 0 -32,738 -100.00 0 -100.00
2023-02-14 2022-12-31 13F APARTMENT INVT & MGMT CL A 03748R747 32,738 32,738 233 0.0140
2022-11-14 2022-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 0 -92,729 -100.00 0 -100.00
2022-08-15 2022-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 92,729 92,729 593 0.0217
2021-11-15 2021-09-30 13F APARTMENT INVT & MGMT CL A 03748R747 0 -13,400 -100.00 0 -100.00
2021-08-16 2021-06-30 13F APARTMENT INVT & MGMT CL A 03748R747 13,400 13,400 90 0.0058
2015-11-16 2015-09-30 13F APARTMENT INVT & MGMT CL A 03748R101 0 -6,343 -100.00 0 -100.00
2015-08-14 2015-06-30 13F APARTMENT INVT & MGMT CL A 03748R101 6,343 6,343 234 0.0229
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.