Pentwater Capital Management 13F: New $109M Stake in SLAB

Pentwater Capital Management took a major new position in Silicon Laboratories Inc. (NASDAQ: SLAB) during the first quarter. According to a recent Form 13F filing with the Securities and Exchange Commission, the investment firm purchased 500,000 shares of the semiconductor specialist. The newly established stake was valued at $109,279,998.78 at the close of the reporting period on May 15, 2026.

A Massive New Bet on Silicon Laboratories

This new purchase is a statement of size for Pentwater Capital Management. To put this investment into perspective, look at the other positions the fund initiated around the same time. On May 15, 2026, Pentwater also reported opening a new stake in CoreCivic, Inc., buying 50,000 shares valued at $1.54 million. The fund made a similarly sized move in Medline Inc., picking up 50,000 shares for $1.8 million. By comparison, the 500,000-share bet on Silicon Laboratories is worth over $109.2 million. This indicates that the fund is placing a far higher level of conviction on the chipmaker than on its other recent additions. The purchase was executed with an average cost basis of $195.89 per share.

Silicon Laboratories Stock Trades Near Highs

On Sunday, the stock was priced at $218.56, hovering close to its previous close of $220.50. The Austin-based semiconductor company has seen its shares trade in a wide 52-week range, from a low of $115.51 to a high of $222.49. The stock is currently trading right in line with its 50-day moving average of $218.64 and comfortably above its longer-term 200-day moving average of $198.92. This upward momentum suggests that Pentwater chose to build its stake as the stock was showing solid technical strength.

Recent Earnings

The semiconductor company reported total revenue of $855,894,016.00, representing a revenue growth rate of 18.3% compared to the prior year. However, profitability remains a challenge, as the company posted a net margin of -4.5% and a return on equity of -3.6%. Because the company is not currently profitable, reporting a negative EPS of -$1.17, it does not have a traditional price-to-earnings ratio. Looking forward, the company's forward P/E ratio is 50.64. Investors will get their next look at the company's financial performance when it reports its next quarterly results on November 3, 2026.

Inside Silicon Laboratories

Silicon Laboratories is a fabless semiconductor firm that designs and manufactures mixed-signal analog intensive products. The company focuses heavily on the Internet of Things (IoT) market. Its microcontrollers and wireless chips power everything from smart home cameras, connected locks, and thermostats to industrial automated machinery, smart utility meters, and medical devices. Pentwater's massive bet suggests confidence that demand for these connected devices will continue to rise.

What Lies Ahead

As the market monitors Silicon Laboratories, the primary focus will be on whether the company can turn its double-digit revenue growth into positive net income. Investors should keep in mind that 13F filings are backward-looking and reflect holdings as of May 15, 2026, meaning they do not necessarily represent Pentwater's current investment strategy or active portfolio today.