APARTMENT INVESTMENT & MANAGEMENT CO

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities

Exchange Act of 1934

Filed by the Registrant☒

Filed by a Party other than the Registrant ☐

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APARTMENT INVESTMENT AND MANAGEMENT COMPANY

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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4582 SOUTH ULSTER STREET SUITE 1450

DENVER, COLORADO 80237

Notice of Annual Meeting of Stockholders

To Be held on June 10, 2026

AN INVITATION FROM OUR CHAIRMAN OF THE BOARD AND OUR CHIEF EXECUTIVE OFFICER

Dear Fellow Stockholders,

You are cordially invited to attend the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of Apartment Investment and Management Company (“Aimco” or the “Company”) to be held on June 10, 2026, at 9:30 am Mountain Daylight Time at Aimco’s corporate headquarters, 4582 South Ulster Street, Suite 1450, Denver, CO 80237.

At the Annual Meeting, stockholders will be asked to (i) elect nine directors, for a term of one year each, to serve until the 2027 Annual Meeting of Stockholders and until their successors are duly elected and qualified, (ii) ratify the selection of Grant Thornton LLP to serve as independent registered public accounting firm for the Company for the fiscal year ending December 31, 2026, (iii) conduct an advisory vote to approve executive compensation, and (iv) transact such other business as may properly come before the Annual Meeting or any adjournment(s) thereof. The accompanying Notice of Annual Meeting and Proxy Statement describe these matters.

We look forward to welcoming you to our annual meeting. Your vote is important to us. Even if you do not plan to attend the meeting in person, please ensure your votes will be represented at the meeting by completing, signing, dating, and returning your proxy card or voting by using the available Internet or telephone voting procedures.

On behalf of the entire Aimco Board, we thank you for your investment in Aimco.

Sincerely,

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

NOTICE IS HEREBY GIVEN that the Annual Meeting of Aimco will be held on June 10, 2026, at 9:30 am Mountain Daylight Time at Aimco’s corporate headquarters, 4582 South Ulster Street, Suite 1450, Denver, CO 80237, for the following purposes:

Only stockholders of record at the close of business on April 22, 2026, will be entitled to notice of, and to vote at, the Annual Meeting or any adjournment(s) thereof.

We are again pleased to take advantage of Securities and Exchange Commission (“SEC”) rules that allow issuers to furnish proxy materials to their stockholders on the Internet. We believe these rules allow us to provide our stockholders with the information they need, while lowering the costs of delivery and reducing the environmental impact of our Annual Meeting.

On or about April 29, 2026, we intend to mail our stockholders a notice containing instructions on how to access our 2026 proxy statement (the “Proxy Statement”) and Annual Report on Form 10-K for the year ended December 31, 2025 (the “2025 Annual Report”), and vote online. The notice also provides instructions on how you can request a paper copy of these documents if you desire, and how you can enroll in e-delivery. If you received your annual materials via email, the email contains voting instructions and links to these documents on the Internet.

WHETHER OR NOT YOU EXPECT TO BE AT THE ANNUAL MEETING, PLEASE VOTE AS SOON AS POSSIBLE TO ENSURE THAT YOUR SHARES ARE REPRESENTED.

By order of the Board of Directors

Jennifer JohnsonSecretary

Important Notice Regarding the Availability of Proxy Materials for

the Annual Meeting of Stockholders to be held on June 10, 2026.

This Proxy Statement and the 2025 Annual Report are available free of charge at the following website: www.edocumentview.com/AIV. You may also order a copy of the materials by calling the following toll-free number: 1-866-641-4276.

You may also obtain these materials at the SEC website at www.sec.gov or by contacting the Office of the Corporate Secretary, 4582 South Ulster Street, Suite 1450, Denver, Colorado 80237.

Except to the extent specifically referenced herein, information contained or referenced on our website is not incorporated by reference into and does not form a part of this Proxy Statement.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

Our stockholder letter, Notice of 2026 Annual Meeting of Stockholders of Aimco and this Proxy Statement contain forward-looking statements within the meaning of the federal securities laws. Forward-looking statements include all statements that are not historical statements of fact and those regarding our intent, belief, or expectations, including, but not limited to, the statements in this document regarding our future plans and goals, including the timing and amount of capital expected to be returned to our stockholders; business strategies, prospects, and projected operating and financial results (including earnings and stockholder value), including facts related thereto, such as expected costs; future Company potential; our pipeline investments and projects, our plans for debt reductions, and our plans for dispositions. We caution investors not to place undue reliance on any such forward-looking statements. Words such as “anticipate(s),” “expect(s),” “intend(s),” “plan(s),” “believe(s),” “plan(s),” “may,” “will,” “would,” “could,” “should,” “seek(s),” “forecast(s),” and similar expressions, or the negative of these terms, are intended to identify such forward-looking statements. These statements are not guarantees of future performance, condition or results, and involve a number of known and unknown risks, uncertainties, assumptions and other important factors, among others, that may affect actual results or outcomes including, but not limited to: (i) our ability to complete the plan of sale and liquidation (the “Plan of Sale and Liquidation”) of Aimco and its subsidiaries, including our ability to successfully market and/or sell the remaining assets, on the terms and timeline anticipated, or at all, (ii) our ability to close sales following the execution of purchase and sale agreements on the terms and timeline anticipated, or at all, including the satisfaction or waiver of the conditions to closing the sales transactions currently under contract and any other sales transactions Aimco may undertake, (iii) the risk that the 2026 plans and goals may not be completed in a timely manner or at all, including any planned or anticipated asset sales, (iv) the inability to recognize the anticipated benefits of the pipeline investments and projects; and (v) changes in general economic conditions, including increases in interest rates and other force-majeure events. Although we believe that the assumptions underlying the forward-looking statements, which are based on management’s expectations and estimates, are reasonable, we can give no assurance that our expectations will be attained. Readers should carefully review the Company’s financial statements and the notes thereto, as well as the sections entitled “Risk Factors” in Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 and in Item 1A of the Company’s Quarterly Reports on Form 10-Q for the quarterly period ended March 31, 2026, and the other documents the Company files from time to time with the SEC. These filings identify and address important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. These forward-looking statements reflect management’s judgment as of this date, and the Company assumes no (and disclaims any) obligation to revise or update them to reflect future events or circumstances.

Explanatory Note

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, through a wholly-owned subsidiary, is the general partner and, directly, is the special limited partner of Aimco OP L.P. (“Aimco Operating Partnership”). As of December 31, 2025, Aimco owned 94.1% of the legal interest in the common partnership units of Aimco Operating Partnership and 96.6% of the economic interest in Aimco Operating Partnership. The remaining 5.9% legal interest is owned by limited partners. The common partnership units of Aimco Operating Partnership are referred to as “OP Units”. As the sole general partner of Aimco Operating Partnership, Aimco has exclusive control of Aimco Operating Partnership’s day-to-day management.

Aimco Operating Partnership holds all of Aimco’s assets and manages the daily operations of Aimco’s business. Pursuant to the Aimco Operating Partnership agreement, Aimco is required to contribute to Aimco Operating Partnership all proceeds from the offerings of its securities. In exchange for the contribution of such proceeds, Aimco receives additional interests in Aimco Operating Partnership with similar terms (e.g., if Aimco contributes proceeds of a stock offering, Aimco receives partnership units with terms substantially similar to the stock issued by Aimco).

Where it is important to distinguish between Aimco and Aimco Operating Partnership, we refer to them specifically. Otherwise, references to “we,” “us,” or “our” mean, collectively, Aimco, Aimco Operating Partnership, and their consolidated entities.

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