Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SPWR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.1M | $5.2M | +10.1% | 2.499% | 0.00% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 3.1M | $3.9M | β | 1.876% | 0.00% |
| 3 | STATE STREET CORP | 2.4M | $3.1M | +22.7% | 1.479% | 0.00% |
| 4 | Polar Asset Management Partners Inc. | 2.1M | $2.7M | 0.0% | 1.276% | 0.06% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 1.8M | $2.3M | +20.2% | 1.103% | 0.00% |
| 6 | RENAISSANCE TECHNOLOGIES LLC | 1.4M | $1.8M | +38.4% | 0.844% | 0.00% |
| 7 | GOLDMAN SACHS GROUP INC | 1.4M | $1.7M | +387.0% | 0.833% | 0.00% |
| 8 | ARDSLEY ADVISORY PARTNERS LP | 960K | $1.2M | +84.6% | 0.586% | 0.17% |
| 9 | Alyeska Investment Group, L.P. | 840K | $1.1M | 0.0% | 0.513% | 0.00% |
| 10 | WESTERLY CAPITAL MANAGEMENT, LLC | 650K | $826K | β | 0.397% | 0.25% |
| 11 | LAZARD ASSET MANAGEMENT LLC | 612K | $778K | β | 0.374% | 0.00% |
| 12 | Squarepoint Ops LLC | 612K | $777K | +33.9% | 0.373% | 0.00% |
| 13 | PRELUDE CAPITAL MANAGEMENT, LLC | 602K | $764K | +13.0% | 0.367% | 0.06% |
| 14 | Diametric Capital, LP | 587K | $746K | +33.8% | 0.358% | 0.19% |
| 15 | XTX Topco Ltd | 578K | $734K | +12.0% | 0.353% | 0.01% |
| 16 | NORTHERN TRUST CORP | 551K | $699K | +23.8% | 0.336% | 0.00% |
| 17 | METEORA CAPITAL, LLC | 501K | $636K | -17.5% | 0.306% | 0.05% |
| 18 | VANGUARD PORTFOLIO MANAGEMENT LLC | 468K | $595K | β | 0.286% | 0.00% |
| 19 | AMERIPRISE FINANCIAL INC | 452K | $574K | β | 0.276% | 0.00% |
| 20 | VANGUARD FIDUCIARY TRUST CO | 440K | $559K | β | 0.269% | 0.00% |
| 21 | Sphera Management Technology Funds Ltd | 434K | $551K | 0.0% | 0.265% | 0.31% |
| 22 | Carlyle Group Inc. | 433K | $550K | 0.0% | 0.265% | 0.01% |
| 23 | Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 366K | $464K | -2.9% | 0.223% | 0.00% |
| 24 | SRS Capital Advisors, Inc. | 238K | $303K | β | 0.146% | 0.01% |
| 25 | KING LUTHER CAPITAL MANAGEMENT CORP | 210K | $267K | 0.0% | 0.128% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in SPWR β a direct measure of their conviction.
Filings activity in SPWR during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new SPWR position in Q1 2026
Institutions that fully closed their SPWR position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 96 | +13% | 27.41% | 0.10 pp | $37M | 0.4% |
| Q4 2025 | 85 | +7.6% | 27.51% | +1.58 pp | $37M | +6.1% |
| Q3 2025 | 79 | +22% | 25.93% | +1.68 pp | $35M | +6.9% |
| Q2 2025 | 65 | +91% | 24.25% | +12.25 pp | $32M | +102% |
| Q1 2025 | 34 | +9.7% | 12.00% | 1.49 pp | $16M | 11% |
| Q4 2024 | 31 | 3.1% | 13.49% | 14.80 pp | $18M | 52% |
| Q3 2024 | 32 | +39% | 28.29% | +17.70 pp | $38M | +167% |
| Q2 2024 | 23 | β | 10.59% | β | $14M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SPWR stock.
Based on Q1 2026 13F filings, institutional ownership of SunPower Inc. stands at 27.4%, held across 96 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of SPWR, with approximately 4,092,734 shares worth $0.01B as of Q1 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of SPWR, including RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for SPWR is 53 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
24 institutions opened new positions in SPWR during Q1 2026, while 13 fully exited. 17 added to existing positions and 54 trimmed.
SPWR institutional ownership fell by 0.10 percentage points quarter-over-quarter, with a net change of +11 holders.
The top 10 institutions account for 64.7% of all reported 13F value in SPWR, and the top 25 account for 89.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
SunPower Inc. (SPWR) Institutional Ownership