WOLFSPEED, INC. (WOLF)
SEC filings, insider trading & institutional ownership from EDGAR.
Wolfspeed, Inc. is an innovator of wide bandgap semiconductors, focused on silicon carbide materials and devices for power applications. The company filed a prepackaged Chapter 11 plan on June 30, 2025 together with its subsidiary Wolfspeed Texas LLC, and the plan was confirmed on September 8, 2025. It emerged on September 29, 2025, adopted fresh start accounting, and reincorporated from North Carolina to Delaware as part of the plan.
Its product families are silicon carbide materials and power devices. The materials line includes silicon carbide bare wafers, epitaxial wafers, and gallium nitride (GaN) epitaxial layers on silicon carbide wafers. The power device line includes silicon carbide Schottky diodes, MOSFETs and power modules, which offer higher efficiency and faster switching than comparable silicon devices, and therefore allow smaller and lighter systems. Research and development focuses on a 200mm silicon carbide platform, higher-performance power devices, better substrate and epitaxial materials, and manufacturing process improvements.
The company targets automotive applications, including electric vehicles and fast charging, and industrial and energy applications such as AI data centers, grid modernization, renewable energy and storage, server and industrial power supplies, solar inverters and uninterruptible power supplies, as well as aerospace and defense. Materials customers use the wafers to make RF, power and other products, and corporate, government and university customers buy them for research. Power products are sold directly and through distributors, and the company also uses third-party sales representatives, with sales and applications staff in North America, Asia and Europe. Two customers each exceeded 10% of revenue in every period presented, together accounting for 37% to 41% of revenue.
Most products are made in company facilities in North Carolina, New York and Arkansas, supplemented by contract manufacturers and by assembly and test subcontractors in Asia. Substrates are made in Durham, North Carolina. During fiscal 2026 the company closed its 150mm device fab in Durham, and all power devices are now produced at the 200mm Mohawk Valley Fab in Marcy, New York. It depends on suppliers around the world for raw materials, components and equipment, using both purchase contracts and discrete purchase orders. Competitors in materials include SICC and TanKeBlue in China. In power devices they include Infineon, ON Semiconductor, Rohm, STMicroelectronics, Bosch and Silan, as well as silicon device makers. The company held 550 U.S. patents and about 921 foreign patents as of June 28, 2026, and had 2,371 employees. It is headquartered in Durham, North Carolina.
AI-summarized from Item 1 (Business) of the company’s most recent 10-K filing.
Financials
As reported to the SEC via XBRL, no adjustments
Latest filings
10-K, 10-Q, 8-K, Form 4 & 13D/G. Sourced directly from SEC EDGAR
| Form | Filed | Accession |
|---|---|---|
| 10-Q | Nov 5, 2026 | 0000895419-26-000081EDGAR |
| 8-K | Nov 4, 2026 | 0000895419-26-000075EDGAR |
| 4ABATE ANTHONY | Oct 29, 2026 | 0001628280-26-068033EDGAR |
| 4Bokan Michael W | Oct 29, 2026 | 0001628280-26-068031EDGAR |
| 4Jensen Mark Edwin | Oct 29, 2026 | 0001628280-26-068025EDGAR |
| 4Walsh Paul V Jr | Oct 29, 2026 | 0001628280-26-068019EDGAR |
| 4HOU HONG Q | Oct 29, 2026 | 0001628280-26-068016EDGAR |
| 4Mattes Andreas W | Oct 29, 2026 | 0001628280-26-068012EDGAR |
Insider trading
From Form 4 filings
| Insider | Date | Type |
|---|---|---|
| Mattes Andreas W | Oct 27, 2026 | Grant / award |
| Walsh Paul V Jr | Oct 27, 2026 | Grant / award |
| Jensen Mark Edwin | Oct 27, 2026 | Grant / award |
| Bokan Michael W | Oct 27, 2026 | Grant / award |
| ABATE ANTHONY | Oct 27, 2026 | Grant / award |
Top holders
13F & 13D/G • latest quarter
| Holder | Stake | Filed | Value |
|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 10.3% | Aug 14, 2026 | $266.6M |
| T. Rowe Price Associates, Inc. | 5.7% | Aug 14, 2026 | $147.28M |
| JANE STREET GROUP, LLC | 5.0% | Aug 14, 2026 | $130.49M |
| STATE STREET CORPORATION | 4.9% | Sep 22, 2026 | $126.45M |
| BlackRock, Inc. | 4.4% | Aug 7, 2026 | $113.57M |
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Data as of Nov 8, 2026Source: SEC EDGAR.