Question 1

What percentage of AIV is owned by institutions?

Accepted Answer

Based on Q1 2026 13F filings, institutional ownership of Apartment Investment and Management Company stands at 95.0%, held across 181 reporting institutions.

Question 2

Who is the largest institutional holder of AIV?

Accepted Answer

Madison Avenue Partners, LP is the largest reported institutional holder of AIV, with approximately 12,374,991 shares worth $0.05B as of Q1 2026.

Question 3

Is AIV a hedge fund favorite?

Accepted Answer

Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of AIV, including LANDMARK INVESTMENT PARTNERS, L.P., JANE STREET GROUP, LLC, TWO SIGMA INVESTMENTS, LP.

Question 4

What is AIV's Smart Money Score?

Accepted Answer

Our composite Smart Money Score for AIV is 40 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.

Question 5

How many institutions bought AIV this quarter?

Accepted Answer

53 institutions opened new positions in AIV during Q1 2026, while 80 fully exited. 34 added to existing positions and 90 trimmed.

Question 6

How is institutional ownership of AIV changing?

Accepted Answer

AIV institutional ownership fell by 56.19 percentage points quarter-over-quarter, with a net change of -27 holders.

Question 7

How concentrated is AIV ownership among the top holders?

Accepted Answer

The top 10 institutions account for 63.8% of all reported 13F value in AIV, and the top 25 account for 82.8%.

Question 8

Where does this AIV institutional ownership data come from?

Accepted Answer

All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.

#	Institution	Shares Held	Market Value	QoQ Change	Ownership %	% of Fund
1	Madison Avenue Partners, LP	12.4M	$50.4M	—	8.602%	2.19%
2	Newtyn Management, LLC	12.2M	$49.7M	+32.6%	8.481%	5.31%
3	VANGUARD PORTFOLIO MANAGEMENT LLC	8.6M	$35.0M	—	5.975%

Quarter	Inst. Holders	Δ Holders	Ownership %	Δ Ownership	Total 13F Value	Δ Value
Q1 2026	181	13%	95.01%	56.19 pp	$394M	37%
Q4 2025	208	+2.0%	151.20%	45.70 pp	$626M	23%
Q3 2025	204	2.4%	196.90%	3.09 pp	$816M	11%
Q2 2025	209	+0.0%	199.99%	+0.00 pp	$921M	+1.8%
Q1 2025	209	+5.6%	199.99%	+0.00 pp	$905M	1.3%
Q4 2024	198	+4.2%

Apartment Investment and Management Company (AIV) Institutional Ownership

AI Insights & Key Takeaways

Top Institutional Holders of AIV

Quarterly Institutional Activity

AIV Institutional Ownership by Quarter

AIV — Frequently Asked Questions