---
title: "Renesas Owns 37% of Wolfspeed. Wolfspeed's Newest Deal Feeds Its Rival Infineon"
description: "Wolfspeed's bankruptcy left Renesas holding roughly 37% of the US silicon carbide supplier, whose newest wafer deal feeds Infineon, a rival in automotive power chips. Renesas reports on October 29, its first results since both of Wolfspeed's October deals."
publisher: "The Inference"
section: "Silicon"
published: 2026-10-17T15:26:38.205Z
modified: 2026-10-17T15:26:38.205Z
canonical: https://theinference.org/article/renesas-owns-37-of-wolfspeed-wolfspeed-s-newest-deal-feeds-its-rival-infineon
language: en
keywords: "Wolfspeed, Renesas, Infineon, Semiconductors, Silicon Carbide, Power Chips"
---

# Renesas Owns 37% of Wolfspeed. Wolfspeed's Newest Deal Feeds Its Rival Infineon

> Wolfspeed's bankruptcy left Renesas holding roughly 37% of the US silicon carbide supplier, whose newest wafer deal feeds Infineon, a rival in automotive power chips. Renesas reports on October 29, its first results since both of Wolfspeed's October deals.

## A board seat with a conflict built in

On January 30, 2026, the Committee on Foreign Investment in the United States, the screen for foreign stakes in American companies, [cleared Wolfspeed's issuance of stock to Renesas](https://www.streetinsider.com/Business+Wire/Wolfspeed+Announces+CFIUS+Clearance+and+Completion+of+Equity+Issuance+to+Renesas+as+Part+of+Court-Approved+Restructuring/25919914.html), the Tokyo-listed automotive and industrial chipmaker [1]. [Renesas](https://theinference.org/markets/companies/renesas-electronics) collected 16,852,372 shares, roughly 37% of the 45.1 million outstanding after the release, plus secured convertible debt and a board seat for its vice president of finance, Aris Bolisay [1].

Nine months later, the company Bolisay helps govern [signed a multi-year agreement to supply 200mm silicon carbide wafers to Infineon](https://finance.yahoo.com/technology/articles/infineon-wolfspeed-expand-extend-long-120000618.html), the German power-chip maker that, like Renesas, sells power semiconductors to carmakers [2][3]. The 200mm wafer is wider than the 150mm standard it replaces, so each one carries more chips at a lower cost per chip [13].

## The stake came out of a failed rescue

[Wolfspeed](https://theinference.org/markets/companies/wolfspeed), the North Carolina pioneer that shipped the first commercial silicon carbide wafer in 1991, filed a prepackaged Chapter 11 on June 30, 2025, under a deal with its lenders and Renesas to erase $4.6 billion of debt [4]. It exited that September, leaving its creditor group in control of the reissued stock [4].

Renesas never bought a share. Reclassifying its Wolfspeed deposit, with currency effects, cost ¥236.6 billion and [helped flip the company from a ¥219.1 billion profit in 2024 to a ¥51.8 billion loss in 2025](https://www.theglobeandmail.com/investing/markets/stocks/RNECF/pressreleases/60833/renesas-swings-to-loss-in-2025-on-automotive-weakness-and-wolfspeed-linked-charge/), alongside weak automotive demand [5]. The bankruptcy converted a dead loan into the largest disclosed block of Wolfspeed's stock [1].

*Chart: **Renesas received 19 times the shares of Wolfspeed's final legacy tranche** Bar chart of shares issued under Wolfspeed's restructuring: Renesas 16.85 million, second-lien note conversions 1.5 million, legacy holders' final tranche 0.87 million*

*Millions of shares issued under the court-approved plan: Renesas' converted loan, prior second-lien note conversions, and the final 2% tranche released to pre-petition shareholders on January 30, 2026. The chart shows only the plan's disclosed issuances; the remaining roughly 26 million of the 45.1 million outstanding went to the creditor group. Sources: Wolfspeed release, January 30, 2026; Wolfspeed bankruptcy record. [1][4]*

## The rescue now runs through Renesas' rival

Wolfspeed still needs volume. Revenue slid from $196.8 million in the September 2025 quarter to $149.6 million in the June 2026 quarter, and net losses ran through every reported period [10].

October brought two supports. On October 7 [the Pentagon's Office of Strategic Capital](https://theinference.org/article/wolfspeed-s-1-5-billion-pentagon-loan-is-a-letter-not-a-check) [offered a conditional 30-year loan commitment of up to $1.5 billion](https://www.msn.com/en-us/news/other/wolfspeed-secures-15-billion-conditional-loan-commitment-from-us-defense-department/ar-AA2dM7Cv) to expand domestic silicon carbide output, sending the shares up 27% in extended trading [6]. Eight days later, the Infineon agreement moved a 20-year supply relationship from 150mm to 200mm wafers, feeding Infineon's Kulim, Malaysia fab [2][9].

Research firm Yole Group expects the silicon carbide power device market to more than triple, from $3.4 billion in 2024 to $11.1 billion by 2031 [2]. The market still voted no. Wolfspeed [fell 16% to $23.99 on October 14](https://moneycheck.com/wolfspeed-wolf-shares-plunge-16-as-investors-digest-conditional-1-5b-defense-financing-terms/) as investors weighed the loan's conditions and warrant dilution, then closed at $23.22 on Friday, October 16, down another 10.4% on a day chip stocks sold off broadly [12][11].

*Chart: **Wolfspeed's quarterly revenue fell 24% from the September 2025 quarter to June 2026** Line chart of Wolfspeed quarterly revenue from the September 2024 quarter to the June 2026 quarter, sliding from $194.7 million to $149.6 million*

*Quarterly revenue, US$ millions, calendar quarters ending September 2024 through June 2026. The June 2025 quarter was not reported during bankruptcy. Source: Wolfspeed SEC filings. [10]*

## Both camps sit inside one shareholder

Wolfspeed collects Infineon's payments, and each one rebuilds the equity behind Renesas' converted loan and services the secured debt Renesas holds [1]. But every wafer also feeds a competitor's supply base, and Infineon keeps multiple substrate suppliers [3][9].

The arithmetic stays lopsided. Renesas' 16,852,372 shares at the October 16 close of $23.22 work out to about $391 million, a fraction of the ¥236.6 billion charge that created the stake [1][5][11]. Meanwhile Renesas keeps pushing its own fast-switching parts, having launched four 100-volt gallium nitride transistors for AI data centers and robotics on October 14 [8].

## October 29 prices October's two deals

Renesas [reports third-quarter results at 09:00 Japan time on October 29](https://www.ad-hoc-news.de/boerse/news/nebenwerte/renesas-plant-quartalszahlen-am-29-10-2026-fuer-renesas-aktie/70344664), its first since the Pentagon loan and the Infineon agreement, both struck this month [7]. Its second quarter brought ¥423.96 billion of revenue and ¥151.15 billion of net income; the stock closed October 16 at ¥3,048, 42% below its 52-week high of ¥5,284, at 16.5 times earnings [7].

Find the Wolfspeed line in the accounts: a write-up or a write-down of the stake, and any mention of the Infineon deal. Wolfspeed's own quarter lands November 4 [11].

## Takeaway

Renesas' ¥236.6 billion bet on Wolfspeed left it owning 37% of a supplier whose biggest new customer is its own rival Infineon, and October 29 results will show how management prices that conflict.

## Sources

1. [Business Wire via StreetInsider, Wolfspeed Announces CFIUS Clearance and Completion of Equity Issuance to Renesas as Part of Court-Approved Restructuring, 30 January 2026](https://www.streetinsider.com/Business+Wire/Wolfspeed+Announces+CFIUS+Clearance+and+Completion+of+Equity+Issuance+to+Renesas+as+Part+of+Court-Approved+Restructuring/25919914.html)
2. [Business Wire via Yahoo Finance, Infineon and Wolfspeed Expand and Extend Long-Term Silicon Carbide Wafer Supply Agreement to Include 200 mm, 15 October 2026](https://finance.yahoo.com/technology/articles/infineon-wolfspeed-expand-extend-long-120000618.html)
3. [Semiconductor Today, Infineon and Wolfspeed expand and extend long-term SiC wafer supply agreement to 200mm, 16 October 2026](https://www.semiconductor-today.com/news_items/2026/oct/wolfspeed-infineon-161026.shtml)
4. [Wikipedia, Wolfspeed, company history including the 2025 Chapter 11 filing and exit, edited 10 October 2026](https://en.wikipedia.org/wiki/Wolfspeed)
5. [TipRanks via The Globe and Mail, Renesas Swings to Loss in 2025 on Automotive Weakness and Wolfspeed-Linked Charge, 5 February 2026](https://www.theglobeandmail.com/investing/markets/stocks/RNECF/pressreleases/60833/renesas-swings-to-loss-in-2025-on-automotive-weakness-and-wolfspeed-linked-charge/)
6. [Reuters via MSN, Wolfspeed secures $1.5 billion conditional loan commitment from US Defense Department, 7 October 2026](https://www.msn.com/en-us/news/other/wolfspeed-secures-15-billion-conditional-loan-commitment-from-us-defense-department/ar-AA2dM7Cv)
7. [ad-hoc-news.de, Renesas plant Quartalszahlen am 29.10.2026, with Q1 and Q2 2026 results and 16 October share data, 16 October 2026](https://www.ad-hoc-news.de/boerse/news/nebenwerte/renesas-plant-quartalszahlen-am-29-10-2026-fuer-renesas-aktie/70344664)
8. [We Are The Frontier, Renesas Launched High-Density GaN Power Transistors, 14 October 2026](https://wearethefrontier.org/world/2026/10/14/renesas-launched-high-density-gan-transistors)
9. [DataCenterDynamics, Wolfspeed signs agreement with Infineon for supply of 200mm silicon carbide substrates, 16 October 2026](https://www.datacenterdynamics.com/en/news/wolfspeed-signs-agreement-with-infineon-for-supply-off-200mm-silicon-carbide-substrates/)
10. [Wolfspeed quarterly figures from its SEC filings, retrieved 17 October 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000895419)
11. [Yahoo Finance, Wolfspeed, Inc. (WOLF) quote page, close of 16 October 2026, retrieved 17 October 2026](https://finance.yahoo.com/quote/WOLF/)
12. [MoneyCheck, Wolfspeed (WOLF) Shares Plunge 16% as Investors Digest Conditional $1.5B Defense Financing Terms, 14 October 2026](https://moneycheck.com/wolfspeed-wolf-shares-plunge-16-as-investors-digest-conditional-1-5b-defense-financing-terms/)
13. [ETElectronics, Infineon signs 200mm SiC wafer supply deal with Wolfspeed, 17 October 2026](https://electronics.economictimes.indiatimes.com/news/semiconductors/infineon-signs-200mm-sic-wafer-supply-deal-with-wolfspeed/135009382)


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Renesas Owns 37% of Wolfspeed. Wolfspeed's Newest Deal Feeds Its Rival Infineon — The Inference. Canonical: https://theinference.org/article/renesas-owns-37-of-wolfspeed-wolfspeed-s-newest-deal-feeds-its-rival-infineon