Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
315 institutional managers reported holding NSA for the quarter ended Mar 31, 2026. Together they hold about 92% of shares outstanding; the top 10 hold 51%. 65 opened new positions; 69 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 9.73M | 12.63% | $367.4M | added +1.4% | 2015 Q2 |
| BlackRock | 8.81M | 11.43% | $332.7M | added +1.5% | 2015 Q2 |
| Cohen & Steers | 4.49M | 5.83% | $169.7M | added +107.9% | 2025 Q2 |
| State Street | 3.58M | 4.64% | $135.0M | trimmed -0.6% | 2015 Q2 |
| CPP Investment Board | 3.40M | 4.41% | $128.4M | added +188.1% | 2025 Q4 |
| Deutsche Bank AG\ | 2.84M | 3.68% | $107.0M | added +265% | 2015 Q2 |
| First Trust Advisors LP | 1.83M | 2.37% | $69.0M | added +14694.2% | 2016 Q3 |
| UBS | 1.61M | 2.09% | $60.9M | added +25.6% | 2015 Q2 |
| Geode Capital | 1.49M | 1.93% | $56.3M | added +3.4% | 2015 Q3 |
| Two Sigma | 1.42M | 1.84% | $53.7M | added +2442.5% | 2025 Q1 |
| AllianceBernstein | 1.32M | 1.71% | $49.8M | added +157.5% | 2015 Q2 |
| Jennison Associates LLC | 1.27M | 1.65% | $48.1M | added +30.6% | 2015 Q2 |
| Magnetar Financial LLC | 1.23M | 1.59% | $46.4M | opened | 2026 Q1 |
| Russell Investments Group, LTD. | 1.20M | 1.56% | $45.4M | added +203.7% | 2018 Q4 |
| Charles Schwab Investment Management | 1.16M | 1.50% | $43.6M | added +5.6% | 2015 Q2 |
| Dimensional Fund Advisors | 1.06M | 1.37% | $40.0M | added +0.5% | 2016 Q2 |
| Citadel Advisors | 1.03M | 1.34% | $38.9M | trimmed -28.7% | 2015 Q2 |
| Morgan Stanley | 1.00M | 1.30% | $37.9M | trimmed -5.1% | 2015 Q2 |
| Cincinnati Insurance CO | 975.7k | 1.27% | $36.8M | unchanged | 2023 Q1 |
| Wellington Management | 956.8k | 1.24% | $36.1M | added +63.8% | 2025 Q3 |
| Goldman Sachs | 856.4k | 1.11% | $32.3M | added +124.2% | 2015 Q2 |
| Balyasny Asset Management | 778.0k | 1.01% | $29.4M | trimmed -70.3% | 2020 Q3 |
| BNY Mellon | 750.2k | 0.97% | $28.3M | added +4.6% | 2015 Q2 |
| Northern Trust | 744.2k | 0.96% | $28.1M | added +3.4% | 2015 Q2 |
| Millennium Management | 717.5k | 0.93% | $27.1M | added +82.4% | 2017 Q4 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 701.2k | 0.91% | $26.5M | added +52.5% | 2025 Q1 |
| Bank OF America CORP /DE/ | 622.5k | 0.81% | $23.5M | trimmed -32.2% | 2015 Q2 |
| Citigroup INC | 610.2k | 0.79% | $23.0M | trimmed -61.9% | 2015 Q2 |
| Water Island Capital LLC | 576.2k | 0.75% | $21.8M | opened | 2026 Q1 |
| AQR Capital | 558.4k | 0.72% | $21.1M | added +635% | 2016 Q2 |
| Invesco | 507.7k | 0.66% | $19.2M | trimmed -39% | 2016 Q1 |
| Jane Street | 485.3k | 0.63% | $18.3M | added +118% | 2021 Q4 |
| Alpine Associates Management INC. | 475.9k | 0.62% | $18.0M | opened | 2026 Q1 |
| LPL Financial LLC | 471.1k | 0.61% | $17.8M | unchanged | 2017 Q4 |
| Glazer Capital, LLC | 434.5k | 0.56% | $16.4M | opened | 2026 Q1 |
| Quantinno Capital Management LP | 426.8k | 0.55% | $16.1M | added +22.5% | 2023 Q1 |
| Leeward Investments, LLC - MA | 393.4k | 0.51% | $14.9M | trimmed -2.5% | 2022 Q3 |
| Legal & General Group PLC | 383.8k | 0.50% | $14.5M | trimmed -6.6% | 2016 Q2 |
| Tudor Investment | 366.7k | 0.48% | $13.8M | opened | 2021 Q4 |
| Gotham Asset Management | 337.3k | 0.44% | $12.7M | trimmed -8.1% | 2023 Q3 |
| Soros Fund Management | 317.4k | 0.41% | $12.0M | opened | 2026 Q1 |
| Fuller & Thaler Asset Management, INC. | 317.3k | 0.41% | $12.0M | added +41.1% | 2023 Q4 |
| TimesSquare Capital Management, LLC | 265.1k | 0.34% | $10.0M | trimmed -61.6% | 2022 Q2 |
| Alberta Investment Management CORP | 239.9k | 0.31% | $9.1M | trimmed -6.6% | 2025 Q4 |
| Adage Capital Partners GP, L.l.c. | 200.0k | 0.26% | $7.5M | opened | 2026 Q1 |
| Heartland Advisors INC | 200.0k | 0.26% | $7.5M | trimmed -58.5% | 2023 Q1 |
| Barclays PLC | 195.5k | 0.25% | $7.4M | added +62.9% | 2015 Q2 |
| Rhumbline Advisers | 187.8k | 0.24% | $7.1M | trimmed -3.7% | 2015 Q2 |
| Hudson Bay Capital | 182.1k | 0.24% | $6.9M | trimmed -84.2% | 2025 Q3 |
| Schonfeld Strategic Advisors | 175.3k | 0.23% | $6.6M | trimmed -74.5% | 2020 Q4 |
Largest 50 of 315 shown; the full ranked, searchable register is at boothcheck.com/holders/NSA. 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.