Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
95 institutional managers reported holding SPWR for the quarter ended Mar 31, 2026. Together they hold about 35% of shares outstanding; the top 10 hold 23%. 19 opened new positions; 15 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 4.09M | 4.82% | $5.2M | added +10.1% | 2025 Q2 |
| Vanguard Group | 4.02M | 4.73% | $5.1M | added +9.6% | ≤2013 |
| State Street | 2.42M | 2.85% | $3.1M | added +22.7% | ≤2013 |
| Polar Asset Management Partners INC. | 2.09M | 2.46% | $2.7M | unchanged | 2023 Q3 |
| Geode Capital | 1.81M | 2.13% | $2.3M | added +20.2% | ≤2013 |
| Renaissance Technologies | 1.38M | 1.63% | $1.8M | added +38.4% | 2024 Q4 |
| Goldman Sachs | 1.36M | 1.61% | $1.7M | added +387% | 2025 Q2 |
| Ardsley Advisory Partners LP | 960.0k | 1.13% | $1.2M | added +84.6% | 2025 Q3 |
| Alyeska Investment Group | 839.6k | 0.99% | $1.1M | unchanged | 2025 Q4 |
| Westerly Capital Management, LLC (focused) | 650.0k | 0.77% | $826k | opened | 2026 Q1 |
| Lazard Asset Management LLC | 612.4k | 0.72% | $778k | opened | 2026 Q1 |
| Squarepoint Ops LLC | 611.8k | 0.72% | $777k | added +33.9% | 2025 Q4 |
| Prelude Capital Management, LLC | 601.6k | 0.71% | $764k | added +13% | 2025 Q4 |
| Diametric Capital, LP | 587.1k | 0.69% | $746k | added +33.8% | 2025 Q4 |
| XTX Topco LTD | 578.1k | 0.68% | $734k | added +12% | 2024 Q3 |
| Northern Trust | 550.6k | 0.65% | $699k | added +23.8% | ≤2013 |
| Cygnus Capital Advisors, LLC | 526.2k | 0.62% | $668k | added +54.7% | 2025 Q4 |
| Meteora Capital, LLC | 500.7k | 0.59% | $636k | trimmed -17.5% | 2023 Q3 |
| Ameriprise Financial INC | 452.2k | 0.53% | $574k | opened | 2026 Q1 |
| Sphera Management Technology Funds LTD | 433.5k | 0.51% | $551k | unchanged | 2025 Q2 |
| Carlyle Group (focused) | 433.2k | 0.51% | $550k | unchanged | 2023 Q3 |
| Mitsubishi UFJ Asset Management CO., LTD. | 365.6k | 0.43% | $464k | trimmed -2.8% | 2025 Q4 |
| Arax Advisory Partners | 238.5k | 0.28% | $303k | opened | 2026 Q1 |
| King Luther Capital Management CORP | 210.0k | 0.25% | $267k | unchanged | 2025 Q1 |
| Bridgeway Capital Management, LLC | 185.6k | 0.22% | $236k | added +67.8% | 2024 Q3 |
| Charles Schwab Investment Management | 178.1k | 0.21% | $226k | added +18.2% | 2025 Q2 |
| Nuveen | 172.6k | 0.20% | $219k | unchanged | 2025 Q2 |
| Firsthand Capital Management, INC. (focused) | 150.0k | 0.18% | $191k | unchanged | 2025 Q2 |
| BNY Mellon | 142.6k | 0.17% | $181k | trimmed -7.3% | 2025 Q2 |
| Bank OF America CORP /DE/ | 140.4k | 0.17% | $178k | added +207.9% | ≤2013 |
| ProShare Advisors LLC | 133.0k | 0.16% | $169k | added +15.4% | 2025 Q2 |
| Quinn Opportunity Partners LLC | 124.0k | 0.15% | $158k | unchanged | 2023 Q3 |
| Worth Venture Partners, LLC | 120.0k | 0.14% | $152k | added +13.5% | 2025 Q3 |
| UBS | 105.6k | 0.12% | $134k | trimmed -22.3% | ≤2013 |
| AQR Capital | 105.4k | 0.12% | $134k | opened | 2026 Q1 |
| Two Sigma | 100.7k | 0.12% | $128k | trimmed -46.4% | 2025 Q3 |
| Rockefeller Capital Management L.p. | 100.0k | 0.12% | $127k | unchanged | 2025 Q3 |
| Cerity Partners LLC | 99.1k | 0.12% | $126k | added +1% | 2025 Q2 |
| SEI Investments CO | 94.0k | 0.11% | $119k | unchanged | 2025 Q4 |
| DDD Partners, LLC | 86.1k | 0.10% | $109k | opened | 2026 Q1 |
| State of Wyoming | 82.1k | 0.10% | $104k | added +4.8% | 2025 Q4 |
| Neuberger Berman Group LLC | 78.3k | 0.09% | $99k | trimmed -1.9% | 2025 Q3 |
| Morgan Stanley | 69.3k | 0.08% | $88k | trimmed -37.2% | ≤2013 |
| Citadel Advisors | 65.9k | 0.08% | $84k | trimmed -77.6% | 2025 Q2 |
| Deutsche Bank AG\ | 54.0k | 0.06% | $69k | unchanged | 2025 Q2 |
| Rhumbline Advisers | 45.9k | 0.05% | $58k | trimmed -6.7% | 2025 Q2 |
| T. Rowe Price | 44.5k | 0.05% | $57k | added +46% | 2025 Q2 |
| AllianceBernstein | 43.3k | 0.05% | $55k | unchanged | 2025 Q2 |
| Mirae Asset Global Etfs Holdings LTD. | 38.1k | 0.04% | $48k | added +32.7% | 2025 Q2 |
| Prudential Financial INC | 37.2k | 0.04% | $47k | added +63.2% | 2025 Q2 |
Largest 50 of 95 shown; the full ranked, searchable register is at boothcheck.com/holders/SPWR. 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.