Who owns National Storage Affiliates Trust (NSA)
Which tracked institutional funds hold NSA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NSA company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
117 tracked funds added or opened NSA while 70 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
NSA’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes NSA more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in NSA divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 331 tracked filers holding NSA, 183 increased or opened the position and 166 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in NSA between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 33
- VANGUARD PORTFOLIO MANAGEMENT LLC$227M
- VANGUARD CAPITAL MANAGEMENT LLC$118M
- First Trust Capital Management L.P.$68M
- Magnetar Financial LLC$46M
- WATER ISLAND CAPITAL LLC$22M
- ALPINE ASSOCIATES MANAGEMENT INC.$18M
Full exits 40
- VANGUARD GROUP INC$270M
- Long Pond Capital, LP$73M
- Land & Buildings Investment Management, LLC$37M
- RUSH ISLAND MANAGEMENT, LP$34M
- Freestone Grove Partners LP$28M
- WASATCH ADVISORS LP$28M
Largest adds
- COHEN & STEERS, INC.$109M
- CANADA PENSION PLAN INVESTMENT BOARD$95M
- DEUTSCHE BANK AG\$85M
- TWO SIGMA INVESTMENTS, LP$52M
- Russell Investments Group, Ltd.$34M
- STATE STREET CORP$33M
Largest trims
- BlackRock, Inc.$82M
- PRUDENTIAL FINANCIAL INC$73M
- BALYASNY ASSET MANAGEMENT L.P.$45M
- FMR LLC$33M
- Hudson Bay Capital Management LP$26M
- CITIGROUP INC$22M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 9,065,116 | $403M | 11.8% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 6,003,787 | $227M | 6.6% | 2026-Q1 |
| COHEN & STEERS, INC. added | 4,494,564 | $170M | 5.0% | 2026-Q1 |
| STATE STREET CORP trimmed | 3,548,610 | $158M | 4.6% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 3,400,100 | $128M | 3.8% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,114,080 | $118M | 3.4% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 2,835,089 | $107M | 3.1% | 2026-Q1 |
| First Trust Capital Management L.P. new | 1,814,200 | $68M | 2.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,490,229 | $56M | 1.6% | 2026-Q1 |
| Magnetar Financial LLC added | 1,236,534 | $55M | 1.6% | 2026-Q2 |
| JENNISON ASSOCIATES LLC added | 1,274,412 | $48M | 1.4% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 1,041,035 | $46M | 1.4% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 1,201,563 | $45M | 1.3% | 2026-Q1 |
| UBS Group AG added | 1,182,504 | $45M | 1.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,156,127 | $44M | 1.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,059,479 | $40M | 1.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 877,701 | $39M | 1.1% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,002,704 | $38M | 1.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 1,320,159 | $37M | 1.1% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 811,892 | $36M | 1.1% | 2026-Q2 |
| CINCINNATI INSURANCE CO | 893,654 | $34M | 1.0% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 856,436 | $32M | 0.9% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 777,982 | $29M | 0.9% | 2026-Q1 |
| Bank of New York Mellon Corp added | 750,154 | $28M | 0.8% | 2026-Q1 |
| NORTHERN TRUST CORP added | 744,159 | $28M | 0.8% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 701,210 | $26M | 0.8% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 683,657 | $25M | 0.7% | 2026-Q1 |
| NORGES BANK trimmed | 568,000 | $25M | 0.7% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 622,538 | $23M | 0.7% | 2026-Q1 |
| CITIGROUP INC trimmed | 610,210 | $23M | 0.7% | 2026-Q1 |
| WATER ISLAND CAPITAL LLC new | 576,224 | $22M | 0.6% | 2026-Q1 |
| Invesco Ltd. added | 435,981 | $19M | 0.6% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 427,945 | $19M | 0.6% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 485,293 | $18M | 0.5% | 2026-Q1 |
| ALPINE ASSOCIATES MANAGEMENT INC. new | 475,900 | $18M | 0.5% | 2026-Q1 |
| LPL Financial LLC added | 471,091 | $18M | 0.5% | 2026-Q1 |
| AQR Arbitrage LLC new | 454,254 | $17M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 437,441 | $17M | 0.5% | 2026-Q1 |
| GLAZER CAPITAL, LLC new | 434,540 | $16M | 0.5% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 366,729 | $16M | 0.5% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 430,316 | $16M | 0.5% | 2026-Q1 |
| Quantinno Capital Management LP added | 426,753 | $16M | 0.5% | 2026-Q1 |
| Leeward Investments, LLC - MA trimmed | 393,446 | $15M | 0.4% | 2026-Q1 |
| Legal & General Group Plc trimmed | 383,750 | $14M | 0.4% | 2026-Q1 |
| Gotham Asset Management, LLC trimmed | 337,283 | $13M | 0.4% | 2026-Q1 |
| SOROS FUND MANAGEMENT LLC new | 317,432 | $12M | 0.4% | 2026-Q1 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 317,273 | $12M | 0.4% | 2026-Q1 |
| TimesSquare Capital Management, LLC trimmed | 265,142 | $10M | 0.3% | 2026-Q1 |
| Alberta Investment Management Corp trimmed | 239,915 | $9M | 0.3% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. new | 200,000 | $8M | 0.2% | 2026-Q1 |
| HEARTLAND ADVISORS INC trimmed | 200,000 | $8M | 0.2% | 2026-Q1 |
| BARCLAYS PLC added | 195,483 | $7M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 187,816 | $7M | 0.2% | 2026-Q1 |
| FMR LLC added | 159,207 | $7M | 0.2% | 2026-Q2 |
| Hudson Bay Capital Management LP trimmed | 182,123 | $7M | 0.2% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 175,325 | $7M | 0.2% | 2026-Q1 |
| BESSEMER GROUP INC added | 173,985 | $7M | 0.2% | 2026-Q1 |
| APG Asset Management US Inc. trimmed | 169,064 | $7M | 0.2% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co added | 166,476 | $6M | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 159,658 | $6M | 0.2% | 2026-Q1 |
| Sound Income Strategies, LLC trimmed | 155,041 | $6M | 0.2% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 157,991 | $6M | 0.2% | 2026-Q1 |
| Lighthouse Investment Partners, LLC trimmed | 150,000 | $6M | 0.2% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 146,551 | $6M | 0.2% | 2026-Q1 |
| Swiss National Bank | 143,879 | $5M | 0.2% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 140,680 | $5M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 129,180 | $5M | 0.1% | 2026-Q1 |
| TIG Advisors, LLC new | 114,749 | $4M | 0.1% | 2026-Q1 |
| Nuveen, LLC trimmed | 113,682 | $4M | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 110,522 | $4M | 0.1% | 2026-Q1 |
| ABC ARBITRAGE SA new | 108,503 | $4M | 0.1% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT CO LTD added | 108,410 | $4M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 9,583,544 | $270M | 7.9% | 2025-Q4 stale |
| Capital World Investors | 1,941,558 | $76M | 2.2% | 2025-Q1 stale |
| Long Pond Capital, LP trimmed | 2,591,313 | $73M | 2.1% | 2025-Q4 stale |
| Land & Buildings Investment Management, LLC new | 1,314,463 | $37M | 1.1% | 2025-Q4 stale |
| RUSH ISLAND MANAGEMENT, LP new | 1,197,716 | $34M | 1.0% | 2025-Q4 stale |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 801,008 | $32M | 0.9% | 2025-Q1 stale |
| Freestone Grove Partners LP added | 1,000,091 | $28M | 0.8% | 2025-Q4 stale |
| WASATCH ADVISORS LP trimmed | 989,702 | $28M | 0.8% | 2025-Q4 stale |
| AMERICAN CENTURY COMPANIES INC trimmed | 671,042 | $26M | 0.8% | 2025-Q1 stale |
| Conversant Capital LLC new | 775,000 | $22M | 0.6% | 2025-Q4 stale |
| Capitolis Liquid Global Markets LLC new | 721,000 | $20M | 0.6% | 2025-Q4 stale |
| Woodline Partners LP added | 669,799 | $19M | 0.6% | 2025-Q4 stale |
| Point72 Asset Management, L.P. trimmed | 608,899 | $17M | 0.5% | 2025-Q4 stale |
| Gillson Capital LP added | 406,445 | $16M | 0.5% | 2025-Q1 stale |
| KENNEDY CAPITAL MANAGEMENT LLC added | 314,218 | $12M | 0.4% | 2025-Q1 stale |
| Irenic Capital Management LP new | 402,822 | $12M | 0.4% | 2025-Q3 stale |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC | 316,068 | $9M | 0.3% | 2025-Q4 stale |
| WATERFALL ASSET MANAGEMENT, LLC new | 297,700 | $8M | 0.2% | 2025-Q4 stale |
| Alyeska Investment Group, L.P. added | 267,703 | $8M | 0.2% | 2025-Q3 stale |
| D. SCOTT NEAL, INC. trimmed | 255,877 | $8M | 0.2% | 2025-Q3 stale |
| ALGERT GLOBAL LLC trimmed | 233,159 | $7M | 0.2% | 2025-Q4 stale |
| PEREGRINE CAPITAL MANAGEMENT LLC added | 173,758 | $5M | 0.1% | 2025-Q4 stale |
| Greenland Capital Management LP added | 148,947 | $5M | 0.1% | 2025-Q3 stale |
| California Public Employees Retirement System added | 139,286 | $4M | 0.1% | 2025-Q2 stale |
| CAPITAL FUND MANAGEMENT S.A. added | 153,439 | $4M | 0.1% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP added | 147,200 | $4M | 0.1% | 2025-Q4 stale |
| New Age Alpha Advisors, LLC added | 104,473 | $4M | 0.1% | 2025-Q1 stale |
| Qube Research & Technologies Ltd trimmed | 133,370 | $4M | 0.1% | 2025-Q3 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.