Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
286 institutional managers reported holding FOLD for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 52%. 46 opened new positions; 84 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 33.88M | 10.91% | $489.7M | added +4.2% | ≤2013 |
| Vanguard Group | 30.62M | 9.86% | $442.6M | added +3% | ≤2013 |
| UBS | 16.52M | 5.32% | $238.7M | added +144.6% | ≤2013 |
| Pentwater Capital Management LP | 14.00M | 4.51% | $202.4M | added +21.7% | 2025 Q4 |
| State Street | 12.89M | 4.15% | $186.4M | trimmed -13.1% | ≤2013 |
| Glazer Capital, LLC | 12.72M | 4.10% | $183.9M | added +693.3% | 2025 Q4 |
| FIL LTD | 12.56M | 4.05% | $181.6M | added +1212.4% | 2025 Q4 |
| Goldman Sachs | 11.56M | 3.72% | $167.0M | added +88.1% | ≤2013 |
| Qube Research & Technologies LTD | 8.81M | 2.84% | $127.3M | added +98.6% | 2024 Q1 |
| HBK Investments L P | 8.78M | 2.83% | $127.0M | trimmed -42.4% | 2025 Q4 |
| Geode Capital | 8.54M | 2.75% | $123.4M | added +16.2% | ≤2013 |
| O'Connor Alternative Investments LLC | 8.44M | 2.72% | $122.1M | opened | 2026 Q1 |
| Millennium Management | 7.91M | 2.55% | $114.3M | added +164% | 2024 Q1 |
| Morgan Stanley | 7.00M | 2.25% | $101.2M | added +27.7% | ≤2013 |
| AQR Capital | 6.58M | 2.12% | $95.1M | added +123% | 2017 Q3 |
| Soros Fund Management | 5.75M | 1.85% | $83.2M | added +15.1% | 2025 Q4 |
| Kryger Capital LLC | 4.55M | 1.47% | $65.8M | added +52.1% | 2025 Q4 |
| AllianceBernstein | 4.32M | 1.39% | $62.4M | added +59.2% | 2014 Q4 |
| Citigroup INC | 4.23M | 1.36% | $61.1M | added +156.4% | ≤2013 |
| Magnetar Financial LLC | 3.99M | 1.28% | $57.6M | unchanged | 2025 Q4 |
| Bank OF America CORP /DE/ | 3.90M | 1.26% | $56.4M | added +13.4% | ≤2013 |
| Weiss Asset Management LP | 3.87M | 1.25% | $56.0M | added +104.6% | 2025 Q4 |
| Balyasny Asset Management | 3.83M | 1.23% | $55.3M | trimmed -25.3% | 2022 Q2 |
| TIG Advisors, LLC | 3.83M | 1.23% | $55.3M | added +30.7% | 2025 Q4 |
| Healthcare OF Ontario Pension Plan Trust Fund | 3.64M | 1.17% | $52.7M | added +355.4% | 2024 Q4 |
| Nomura Asset Management International INC. | 3.56M | 1.15% | $51.5M | trimmed -29.8% | 2025 Q4 |
| Capula Management LTD | 3.19M | 1.03% | $46.1M | added +10538.7% | 2025 Q4 |
| Northern Trust | 2.72M | 0.88% | $39.3M | added +2.9% | ≤2013 |
| Charles Schwab Investment Management | 2.51M | 0.81% | $36.3M | trimmed -1.9% | ≤2013 |
| Nuveen | 2.30M | 0.74% | $33.3M | trimmed -50.3% | 2019 Q2 |
| Nexpoint Asset Management, L.p. | 2.04M | 0.66% | $29.5M | opened | 2026 Q1 |
| Renaissance Technologies | 1.87M | 0.60% | $27.1M | added +54.6% | 2022 Q3 |
| BNP Paribas Financial Markets | 1.87M | 0.60% | $27.0M | trimmed -17.1% | 2015 Q2 |
| Schonfeld Strategic Advisors | 1.76M | 0.57% | $25.4M | added +573.3% | 2024 Q1 |
| FMR (Fidelity) | 1.75M | 0.56% | $25.4M | added +882.9% | ≤2013 |
| Squarepoint Ops LLC | 1.71M | 0.55% | $24.7M | added +533.4% | 2023 Q1 |
| Cibra Capital LTD (focused) | 1.69M | 0.54% | $24.4M | added +700.6% | 2025 Q4 |
| Adage Capital Partners GP, L.l.c. | 1.65M | 0.53% | $23.9M | unchanged | 2025 Q4 |
| Alpine Associates Management INC. | 1.60M | 0.51% | $23.1M | added +68.2% | 2025 Q4 |
| Polar Asset Management Partners INC. | 1.54M | 0.50% | $22.3M | added +535% | 2025 Q4 |
| Allianz Asset Management GmbH | 1.44M | 0.46% | $20.8M | trimmed -3% | 2022 Q3 |
| Gardner Lewis Asset Management L P | 1.41M | 0.46% | $20.5M | opened | 2026 Q1 |
| First Trust Advisors LP | 1.40M | 0.45% | $20.2M | trimmed -13.7% | 2021 Q4 |
| Alberta Investment Management CORP | 1.39M | 0.45% | $20.1M | added +47.9% | 2025 Q4 |
| Barclays PLC | 1.34M | 0.43% | $19.3M | added +18% | ≤2013 |
| Picton Mahoney Asset Management | 1.33M | 0.43% | $19.2M | added +116.3% | 2025 Q4 |
| Palo Alto Investors LP | 1.11M | 0.36% | $16.1M | trimmed -78.6% | ≤2013 |
| Maven Securities LTD | 1.11M | 0.36% | $16.0M | added +40.6% | 2025 Q4 |
| PSquared Asset Management AG (focused) | 1.10M | 0.35% | $15.9M | added +4.9% | 2025 Q4 |
| Susquehanna Portfolio Strategies, LLC | 1.08M | 0.35% | $15.5M | unchanged | 2025 Q2 |
Largest 50 of 286 shown; the full ranked, searchable register is at boothcheck.com/holders/FOLD. 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.