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EXR · Extra Space Storage Inc.

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Market Cap
$30.17B
Shares
211.27M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 790
Total Value: $30,000,673,010
Total Shares: 206,588,772
Showing 1–100 of 807 holdings by value · page 1 of 9

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 790 13F filers · Δ vs Mar 31, 2026
Top Holder
11.1%
Sep 2023 → Jun 2026 · range 11.1% – 17.3%
−0.0 pts
Top 5
39.6%
Sep 2023 → Jun 2026 · range 39.6% – 49.0%
−2.3 pts
Top 10
55.6%
Sep 2023 → Jun 2026 · range 55.6% – 61.4%
−0.3 pts
HHI
418
Sep 2023 → Jun 2026 · range 418 – 622
Broadly held−22

Quarterly Activity

vs Mar 31, 2026
New
107
Increased
287
Decreased
257
Sold Out
84
Unchanged
139
Holder count: +23
Institutional value: +13.3%
Shares held: +2.2%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 807
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1289490 CUSIP 30225T102 13F (30d) 580 filings 574 filers Visit website Investor relations