Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
1,058 institutional managers reported holding PSA for the quarter ended Mar 31, 2026. Together they hold about 80% of shares outstanding; the top 10 hold 47%. 96 opened new positions; 126 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 25.52M | 14.51% | $6.91B | added +0.7% | ≤2013 |
| BlackRock | 16.74M | 9.52% | $4.53B | trimmed -1% | ≤2013 |
| State Street | 10.23M | 5.82% | $2.77B | trimmed -3.1% | ≤2013 |
| Capital International Investors | 6.36M | 3.62% | $1.72B | added +53.9% | 2023 Q1 |
| T. Rowe Price | 5.64M | 3.21% | $1.53B | added +93.4% | ≤2013 |
| Cohen & Steers | 4.41M | 2.51% | $1.19B | added +10.4% | ≤2013 |
| Geode Capital | 4.22M | 2.40% | $1.14B | added +3.3% | ≤2013 |
| FMR (Fidelity) | 3.62M | 2.06% | $980.1M | trimmed -10.4% | ≤2013 |
| Charles Schwab Investment Management | 3.21M | 1.82% | $868.8M | added +3.4% | ≤2013 |
| UBS | 2.32M | 1.32% | $627.6M | added +246.3% | ≤2013 |
| Northern Trust | 2.31M | 1.31% | $625.2M | trimmed -2.2% | ≤2013 |
| Dimensional Fund Advisors | 2.28M | 1.30% | $617.5M | added +3.1% | ≤2013 |
| APG Asset Management N.v. | 2.17M | 1.24% | $588.9M | trimmed -5% | ≤2013 |
| Barrow Hanley Mewhinney & Strauss LLC | 1.88M | 1.07% | $509.8M | added +5% | 2023 Q3 |
| Clearbridge Investments, LLC | 1.88M | 1.07% | $508.1M | added +30.1% | 2023 Q2 |
| Legal & General Group PLC | 1.87M | 1.06% | $505.4M | trimmed -4.4% | ≤2013 |
| Morgan Stanley | 1.83M | 1.04% | $494.5M | added +21% | ≤2013 |
| Invesco | 1.55M | 0.88% | $420.0M | added +20.7% | ≤2013 |
| Wellington Management | 1.45M | 0.83% | $393.6M | added +41.6% | ≤2013 |
| Ameriprise Financial INC | 1.23M | 0.70% | $333.1M | added +3.2% | ≤2013 |
| Capital Research Global Investors | 1.21M | 0.69% | $327.0M | opened | 2026 Q1 |
| Centersquare Investment Management LLC | 1.20M | 0.69% | $326.3M | trimmed -16.1% | 2018 Q1 |
| Goldman Sachs | 1.08M | 0.61% | $292.2M | trimmed -30.4% | ≤2013 |
| BNY Mellon | 1.00M | 0.57% | $271.2M | trimmed -0.5% | ≤2013 |
| Royal Bank OF Canada | 891.4k | 0.51% | $241.4M | added +6.4% | ≤2013 |
| Daiwa Securities Group INC. | 891.0k | 0.51% | $241.2M | added +6.4% | ≤2013 |
| 1832 Asset Management L.p. | 861.6k | 0.49% | $233.3M | added +65.7% | 2020 Q2 |
| Sumitomo Mitsui Trust Group, INC. | 840.4k | 0.48% | $227.6M | trimmed -1.9% | ≤2013 |
| Nuveen | 820.7k | 0.47% | $222.2M | trimmed -5.8% | ≤2013 |
| MFS Investment Management | 776.2k | 0.44% | $210.2M | trimmed -6% | ≤2013 |
| Bank OF America CORP /DE/ | 751.8k | 0.43% | $203.6M | trimmed -9% | ≤2013 |
| Deutsche Bank AG\ | 664.1k | 0.38% | $179.8M | added +67.2% | ≤2013 |
| Mitsubishi UFJ Asset Management CO., LTD. | 559.8k | 0.32% | $151.6M | added +4.9% | ≤2013 |
| Duff & Phelps Investment Management CO | 553.2k | 0.31% | $149.8M | added +23.1% | 2022 Q2 |
| Amundi | 550.1k | 0.31% | $148.9M | trimmed -14.2% | ≤2013 |
| Hsbc Holdings PLC | 549.6k | 0.31% | $148.8M | trimmed -10.1% | ≤2013 |
| Montrusco Bolton Investments INC. | 518.3k | 0.29% | $140.3M | trimmed -18.5% | 2022 Q2 |
| Russell Investments Group, LTD. | 504.5k | 0.29% | $136.6M | added +12.6% | 2016 Q4 |
| Canada Life Assurance CO | 489.6k | 0.28% | $132.6M | unchanged | ≤2013 |
| Citigroup INC | 489.5k | 0.28% | $132.5M | added +46.3% | ≤2013 |
| Lasalle Investment Management Securities LLC (focused) | 484.7k | 0.28% | $131.2M | added +1% | ≤2013 |
| Swiss National Bank | 463.4k | 0.26% | $125.5M | added +7.1% | ≤2013 |
| Barclays PLC | 448.2k | 0.26% | $121.3M | trimmed -25.8% | ≤2013 |
| Caisse de depot et placement du Quebec | 429.6k | 0.24% | $116.3M | trimmed -14.6% | ≤2013 |
| Wells Fargo & COMPANY/MN | 405.3k | 0.23% | $109.7M | added +8.3% | ≤2013 |
| American Century Companies INC | 395.4k | 0.23% | $107.1M | trimmed -22.7% | ≤2013 |
| CalPERS | 390.4k | 0.22% | $105.7M | trimmed -8.5% | ≤2013 |
| HighTower Advisors, LLC | 355.0k | 0.20% | $96.1M | unchanged | ≤2013 |
| Aberdeen Group plc | 335.0k | 0.19% | $90.7M | trimmed -2% | 2017 Q3 |
| BNP Paribas Financial Markets | 328.8k | 0.19% | $89.0M | trimmed -8.5% | ≤2013 |
Largest 50 of 1,058 shown; the full ranked, searchable register is at boothcheck.com/holders/PSA. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.