Who owns SunPower (SPWR)
Which tracked institutional funds hold SPWR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SPWR company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on SPWR is one-sided between 2026-Q1 and 2026-Q2: 2 added or opened and 18 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
SPWR’s largest tracked holder by dollar value, Clear Street Derivatives LLC, sizes it at 19.8% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 19.8pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SPWR divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 95 tracked filers holding SPWR, 44 increased or opened the position and 64 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in SPWR between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
Full exits 5
- TENOR CAPITAL MANAGEMENT Co., L.P.$6M
- Cygnus Capital Advisors, LLC$668K
- METEORA CAPITAL, LLC$636K
- VANGUARD PORTFOLIO MANAGEMENT LLC$595K
- AMERIPRISE FINANCIAL INC$574K
Largest adds
- Carlyle Group Inc.$1M
- DDD Partners, LLC$838K
Largest trims
- BlackRock, Inc.$4M
- STATE STREET CORP$3M
- GEODE CAPITAL MANAGEMENT, LLC$2M
- GOLDMAN SACHS GROUP INC$2M
- Polar Asset Management Partners Inc.$1M
- RENAISSANCE TECHNOLOGIES LLC$1M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC added | 4,604,630 | $3M | 2.1% | 2026-Q2 |
| Carlyle Group Inc. added | 2,343,750 | $2M | 1.1% | 2026-Q2 |
| Polar Asset Management Partners Inc. | 2,089,728 | $1M | 1.0% | 2026-Q2 |
| ARDSLEY ADVISORY PARTNERS LP added | 1,416,065 | $973K | 0.7% | 2026-Q2 |
| DDD Partners, LLC added | 1,377,864 | $947K | 0.6% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC added | 1,274,637 | $876K | 0.6% | 2026-Q2 |
| BlackRock, Inc. trimmed | 1,253,980 | $862K | 0.6% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 1,088,467 | $748K | 0.5% | 2026-Q2 |
| WESTERLY CAPITAL MANAGEMENT, LLC added | 1,000,000 | $687K | 0.5% | 2026-Q2 |
| Alyeska Investment Group, L.P. | 839,577 | $577K | 0.4% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 773,432 | $532K | 0.4% | 2026-Q2 |
| Diametric Capital, LP added | 730,804 | $502K | 0.3% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 611,002 | $420K | 0.3% | 2026-Q2 |
| Yorkville Advisors Global, LP new | 551,000 | $379K | 0.3% | 2026-Q2 |
| XTX Topco Ltd trimmed | 484,608 | $333K | 0.2% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 463,988 | $319K | 0.2% | 2026-Q2 |
| UBS Group AG added | 443,958 | $305K | 0.2% | 2026-Q2 |
| Sphera Management Technology Funds Ltd | 433,500 | $298K | 0.2% | 2026-Q2 |
| MORGAN STANLEY added | 431,388 | $296K | 0.2% | 2026-Q2 |
| LUMINUS MANAGEMENT LLC new | 425,000 | $292K | 0.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 317,188 | $218K | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 317,099 | $218K | 0.1% | 2026-Q2 |
| STATE STREET CORP trimmed | 271,116 | $186K | 0.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 245,367 | $169K | 0.1% | 2026-Q2 |
| Arax Advisory Partners added | 238,831 | $164K | 0.1% | 2026-Q2 |
| KING LUTHER CAPITAL MANAGEMENT CORP | 210,000 | $144K | 0.1% | 2026-Q2 |
| Cerity Partners LLC added | 197,334 | $136K | 0.1% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 185,600 | $128K | 0.1% | 2026-Q2 |
| Firsthand Capital Management, Inc. | 150,000 | $103K | 0.1% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 146,575 | $101K | 0.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 124,531 | $86K | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 124,051 | $85K | 0.1% | 2026-Q2 |
| Quinn Opportunity Partners LLC | 124,039 | $85K | 0.1% | 2026-Q2 |
| Park West Asset Management LLC | 600,105 | $83K | 0.1% | 2026-Q2 |
| BARCLAYS PLC added | 116,958 | $80K | 0.1% | 2026-Q2 |
| Rockefeller Capital Management L.P. | 100,000 | $69K | 0.0% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC trimmed | 93,353 | $64K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 98,600 | $63K | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 81,712 | $56K | 0.0% | 2026-Q2 |
| ARISTEIA CAPITAL, L.L.C. | 279,682 | $44K | 0.0% | 2026-Q2 |
| Sculptor Capital LP | 289,449 | $40K | 0.0% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 55,170 | $38K | 0.0% | 2026-Q2 |
| SECURITY BENEFIT LIFE INSURANCE CO /KS/ | 150,000 | $38K | 0.0% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC new | 41,905 | $29K | 0.0% | 2026-Q2 |
| PEAK6 LLC trimmed | 207,774 | $29K | 0.0% | 2026-Q2 |
| R Squared Ltd added | 39,392 | $27K | 0.0% | 2026-Q2 |
| VERUS CAPITAL PARTNERS, LLC added | 39,025 | $27K | 0.0% | 2026-Q2 |
| Point72 Asset Management, L.P. new | 36,563 | $25K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 34,061 | $23K | 0.0% | 2026-Q2 |
| Y-Intercept (Hong Kong) Ltd new | 30,766 | $21K | 0.0% | 2026-Q2 |
| CSS LLC/IL | 130,155 | $18K | 0.0% | 2026-Q2 |
| Diversify Advisory Services, LLC added | 34,737 | $17K | 0.0% | 2026-Q2 |
| DIVERSIFY WEALTH MANAGEMENT, LLC | 34,737 | $17K | 0.0% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC trimmed | 21,800 | $15K | 0.0% | 2026-Q2 |
| Shaolin Capital Management LLC | 100,000 | $14K | 0.0% | 2026-Q2 |
| PFG Investments, LLC new | 20,000 | $14K | 0.0% | 2026-Q2 |
| RWA WEALTH PARTNERS, LLC added | 20,000 | $14K | 0.0% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 18,285 | $13K | 0.0% | 2026-Q2 |
| Oasis Management Co Ltd. | 18,033 | $12K | 0.0% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC new | 14,000 | $10K | 0.0% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 62,500 | $9K | 0.0% | 2026-Q2 |
| Nuveen, LLC trimmed | 12,593 | $9K | 0.0% | 2026-Q2 |
| Ascentis Wealth Management, LLC trimmed | 8,247 | $8K | 0.0% | 2026-Q2 |
| TORONTO DOMINION BANK trimmed | 50,000 | $7K | 0.0% | 2026-Q2 |
| Ironwood Financial, llc new | 10,000 | $6K | 0.0% | 2026-Q2 |
| Calamos Advisors LLC | 42,500 | $6K | 0.0% | 2026-Q2 |
| JANE STREET GROUP, LLC | 41,180 | $6K | 0.0% | 2026-Q2 |
| OMERS ADMINISTRATION Corp | 37,500 | $5K | 0.0% | 2026-Q2 |
| LMR Partners LLP | 37,500 | $5K | 0.0% | 2026-Q2 |
| VR Advisory Services Ltd | 37,500 | $5K | 0.0% | 2026-Q2 |
| FMR LLC added | 6,061 | $4K | 0.0% | 2026-Q2 |
| MOORE CAPITAL MANAGEMENT, LP added | 25,000 | $3K | 0.0% | 2026-Q2 |
| TPG GP A, LLC | 25,000 | $3K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 4,321 | $3K | 0.0% | 2026-Q2 |
| Limestone Investment Advisors LP | 15,076 | $2K | 0.0% | 2026-Q2 |
| ZAZOVE ASSOCIATES LLC trimmed | 11,327 | $2K | 0.0% | 2026-Q2 |
| D. E. Shaw & Co., Inc. | 12,382 | $2K | 0.0% | 2026-Q2 |
| WOLVERINE ASSET MANAGEMENT LLC | 2,045 | $1K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 1,400 | $965 | 0.0% | 2026-Q2 |
| Physician Wealth Advisors, Inc. new | 1,282 | $882 | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP new | 1,000 | $630 | 0.0% | 2026-Q2 |
| Benson Wealth Management INC new | 500 | $344 | 0.0% | 2026-Q2 |
| Clear Street Group Inc. | 1,393 | $192 | 0.0% | 2026-Q2 |
| Integrated Wealth Concepts LLC new | 198 | $135 | 0.0% | 2026-Q2 |
| Allworth Financial LP trimmed | 120 | $83 | 0.0% | 2026-Q2 |
| CITIGROUP INC trimmed | 70 | $48 | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 70 | $48 | 0.0% | 2026-Q2 |
| Essential Partners LLC trimmed | 53 | $36 | 0.0% | 2026-Q2 |
| Avalon Trust Co | 52 | $36 | 0.0% | 2026-Q2 |
| ROTHSCHILD INVESTMENT LLC added | 28 | $19 | 0.0% | 2026-Q2 |
| IFP Advisors, Inc | 18 | $12 | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC added | 11 | $7 | 0.0% | 2026-Q2 |
| Clearstead Advisors, LLC new | 6 | $6 | 0.0% | 2026-Q2 |
| Fortitude Family Office, LLC new | 3 | $2 | 0.0% | 2026-Q2 |
| Wealth Enhancement Trust Services, Inc. new | 3 | $2 | 0.0% | 2026-Q2 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 24,072 | $6M | 4.0% | 2026-Q1 stale (1 quarter behind) |
| Cygnus Capital Advisors, LLC added | 526,164 | $668K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| METEORA CAPITAL, LLC trimmed | 500,673 | $636K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC added | 3,663,422 | $6M | 3.9% | 2025-Q4 stale (2 quarters behind) |
| Clear Street Derivatives LLC | 362,014 | $118M | 78.9% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.