Note 1 — Organization

Apartment Investment and Management Company (“Aimco” or “the Company”), a Maryland corporation, is a self-administered and self-managed real estate investment trust (“REIT”). On December 15, 2020, Aimco completed the separation of its businesses (the “Separation”), creating two, separate and distinct, publicly traded companies, Aimco and Apartment Income REIT Corp. (“AIR”) (Aimco and AIR together, as they existed prior to the Separation, “Aimco Predecessor”). Events noted in this filing as occurring before December 15, 2020, were those entered into by Aimco Predecessor.

Aimco, through a wholly owned subsidiary, is the general partner and is, directly, the special limited partner of Aimco OP L.P. (“Aimco Operating Partnership”). As of March 31, 2026, Aimco owned 94.1% of the legal interest in the common partnership units of Aimco Operating Partnership and 95.1% of the dilutive economic interest in Aimco Operating Partnership. The remaining 5.9% legal interest is owned by limited partners. As the sole general partner of Aimco Operating Partnership, Aimco has exclusive control of Aimco Operating Partnership’s day-to-day management.

This filing combines the quarterly reports on Form 10-Q for the quarterly period ended March 31, 2026, of Aimco and Aimco Operating Partnership. Where it is important to distinguish between the two entities, each is referred to specifically. Otherwise, references to “we,” “us,” or “our” mean, collectively, Aimco, Aimco Operating Partnership, and their consolidated entities.

We own or lease a portfolio of real estate investments focused primarily on the U.S. multifamily sector. At March 31, 2026, our portfolio includes six consolidated stabilized operating properties, two completed development properties in lease-up, and four unconsolidated properties. Additionally, we have a completed single family rental community, a waterfront ground-up development under construction, and undeveloped land parcels. In addition, we hold seller financing notes receivable related to the December 2025 sale of the Brickell Assemblage and other alternative investments, including our Mezzanine Investment, our investment in IQHQ Holdings, LP (“IQHQ”), and our investment in real estate technology funds. See Note 3 for further information regarding our Mezzanine Investment and our investment in IQHQ.

On November 10, 2025, our Board of Directors (the “Board”) determined advisable and approved a Plan of Sale and Liquidation, subject to stockholder approval. The Plan of Sale and Liquidation provides for the Company’s complete liquidation and dissolution in accordance with Section 331, Section 336 and Section 346(a) of the Internal Revenue Code of 1986 (the “Code”), as amended, and the Maryland General Corporation Law (“MGCL”). On February 6, 2026, holders of Common Shares representing approximately 83% of the outstanding Common Shares voted in favor of the adoption of the Plan of Sale and Liquidation. As a result, the Plan of Sale and Liquidation was adopted.