The largest holder of Extra Space Storage stock is Vanguard Portfolio Management LLC, with 18.6 million shares (8.81% of the company), worth about $2.63 billion as of September 25, 2026. The 10 largest holders together own 52.0%.
In Q2 2026, 829 institutional holdings reports listed shares worth $30.80 billion.
Insiders reported 41 transactions in the last two years: 9 sales worth $6.28 million and no purchases. The newest one on file is from March 13, 2026 (Margolis Joseph D, Chief Executive Officer).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through March 13, 2026.

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Vanguard Portfolio Management LLC | 18.6 million | 8.81% | $2.6B |
| BlackRock Advisors LLC | 18.2 million | 8.61% | $2.6B |
| Vanguard Capital Management LLC | 13.8 million | 6.54% | $1.9B |
| State Street Corporation | 13.6 million | 6.42% | $1.9B |
| Cohen & Steers Capital Management, Inc. | 12.9 million | 6.10% | $1.8B |
| Norges Bank (13F) | 9.3 million | 4.40% | $1.3B |
| Capital Research & Management Co. (Global Investors) | 6.3 million | 2.98% | $889.0M |
| Geode Capital Management LLC | 6.1 million | 2.91% | $866.0M |
| Principal Real Estate Investors LLC | 6.1 million | 2.87% | $855.0M |
| Fidelity Management & Research Co. LLC | 5.1 million | 2.41% | $718.0M |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 829 | – | $30.8B |
| Q1 2026 | 785 | 202.0 million | $26.4B |
| Q4 2025 | 758 | 215.0 million | $28.0B |
| Q3 2025 | 816 | 203.0 million | $28.6B |
| Q2 2025 | 829 | 207.0 million | $30.5B |
| Q1 2025 | 826 | 209.0 million | $31.0B |
| Q4 2024 | 810 | 205.0 million | $30.6B |
| Q3 2024 | 800 | 210.0 million | $37.3B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Margolis Joseph D | Mar 13, 2026 | Chief Executive Officer | Sale at price 142.08 per share. | $1.1M |
| Margolis Joseph D | Mar 6, 2026 | Chief Executive Officer | Stock Gift at price 0.00 per share. | – |
| Margolis Joseph D | Feb 27, 2026 | Chief Executive Officer | Stock Award(Grant) at price 151.03 per share. | $3.7M |
| Kunde Grace H | Feb 27, 2026 | Officer | Stock Award(Grant) at price 151.03 per share. | $195,131 |
| Mcneal Gwyn Goodson | Feb 27, 2026 | Officer | Stock Award(Grant) at price 151.03 per share. | $732,193 |
| Sondhi Samrat | Feb 27, 2026 | Officer | Stock Award(Grant) at price 151.03 per share. | $1.4M |
| Dickens Zachary T | Feb 27, 2026 | Officer | Stock Award(Grant) at price 151.03 per share. | $1.3M |
| Springer William Noah | Feb 27, 2026 | President | Stock Award(Grant) at price 151.03 per share. | $1.5M |
| Herrington Matthew T | Feb 27, 2026 | Chief Operating Officer | Stock Award(Grant) at price 151.03 per share. | $1.2M |
| Norman Jeffrey Jay | Feb 27, 2026 | Chief Financial Officer | Stock Award(Grant) at price 151.03 per share. | $519,996 |
| Kirk Spencer F | Dec 2, 2025 | Director | Stock Gift at price 0.00 per share. | – |
| Margolis Joseph D | Nov 6, 2025 | Chief Executive Officer | Stock Gift at price 0.00 per share. | – |
Newest 12 of 41 insider transactions in the last two years.
Vanguard Portfolio Management LLC, with 8.81% of the company (as of September 25, 2026). Next: BlackRock Advisors LLC (8.61%) and Vanguard Capital Management LLC (6.54%).
829 institutional holdings reports listed Extra Space Storage shares in Q2 2026 worth $30.80 billion.
In the last two years insiders reported 9 sales and no purchases (41 transactions in all); the newest on file is from March 13, 2026.