Two prominent Tiger Cubs disclosed sizable stakes in different companies on Friday. Both investments were filed on Form 13G, meaning they are passive.

Maverick Capital, headed by Lee Ainslie III, bought virtually all of its current position in coal miner Peabody Energy — roughly 6.65 million shares — since the end of the second quarter. Peabody is now the hedge fund firm’s 14th-largest U.S. common stock long position, according to a newly disclosed regulatory filing.

From early November 2024 to early April 2025, Peabody’s share price shrank by two-thirds. But it has swelled by about 150 percent since. The stock is also up approximately 50 percent in just the past five weeks. Peabody now has a market cap of roughly $3 billion.

The company has been boosted in part by recent price target increases made by at least two investment banks. According to MarketBeat, B. Riley hiked its target from $18 to $24 and issued a buy rating. UBS lifted its target from $16 to $17, with a neutral rating. Peabody, like many other energy-related companies, is expected to benefit from a surge in power demand from data centers.

Its second-quarter earnings came in 262 percent above expectations.

Peabody’s tiny market cap contrasts sharply with those of Maverick’s top four holdings, all tech behemoths: chip giant Nvidia, Amazon, contract chip manufacturer Taiwan Semiconductor Manufacturing, and Microsoft. As of the end of August, Maverick’s long-short fund was up 17.7 percent, Maverick Long had jumped 19.8 percent, and Maverick Long Enhanced had surged 23.8 percent, according to a hedge fund database.

Lone Pine Capital, founded by Stephen Mandel Jr., said in a new regulatory filing it had initiated a new stake of nearly 1.5 million shares in restaurant chain Wingstop, valued at more than $378 million. It now owns 5.2 percent of the stock, which has a market capitalization of $6.9 billion.

Wingstop’s stock has dropped about 35 percent from its July 31 high and is down 13 percent for the year. In the second quarter, Wingstop slightly beat expectations on revenues and exceeded the earnings consensus by about 15 percent.

Lone Pine’s portfolio is a mix of major tech holdings such as Facebook parent Meta Platforms, Amazon, and Microsoft; financials like Capital One Financial; health care giants like UnitedHealth Group; and consumer companies such as online used-car company Carvana, retail chain Starbucks, tobacco giant Philip Morris, and Wingstop.

The hedge fund firm’s long-short fund was up about 17 percent through July, says someone who has seen the results.