Who owns Apartment Investment and Management Co, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
Vanguard Portfolio Management: 4.1% · 5,878,027 shares
Weiss Asset Management LP: 5.7% · 8,150,456 shares — WAM GP LLC: 5.7% · 8,150,456 shares — WEISS ANDREW M: 5.7% · 8,150,456 shares
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Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Apartment Investment and Management Co they hold. Together these 279 managers report 111.63% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | $114M | 19,169,677 | 0.00% | 13.20% | December 31, 2025 |
| PRICE T ROWE ASSOCIATES INC /MD/ | $51M | 17,156,764 | 0.01% | 11.81% | June 30, 2026 |
277 more institutional holders behind a free account
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 152 funds hold 27.13% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| T. Rowe Price Mid-Cap Value Fund, Inc. | $27.2M | 0.17% | 6.30% | June 30, 2026 |
| VANGUARD REAL ESTATE INDEX FUND | $21.3M | 0.03% | 3.46% | April 30, 2026 |
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