American Axle & Manufacturing Holdings Inc., the $773 million auto-parts supplier, is exploring a potential sale, according to people familiar with the matter.

Former Treasury Secretary Lawrence Summers said he’s concerned about a populist tilt among US antitrust regulators, including comments this week that disparaged private equity, warning that the trend could prove harmful to the economy.

US regulators allowed more time for critics of Standard General LP’s proposed acquisition of TV station owner Tegna Inc. to make their case, after a union and consumer advocates said the deal would let private equity firms jack up prices.

Plenty of retail investors probably got burned buying SPACs, paying huge prices for shares in SPACs that took speculative companies public, only to see the shares drop when the companies didn’t perform. But the retail investors who piled in at the tail end of the boom just … sort of paid $10 for shares of SPACs that never did anything and will return their $10 with interest? Meanwhile the sponsors who piled in at the tail end are holding the bag.

Melvin Capital Management’s traders pocketed hefty performance fees over a half-decade while achieving roughly 30% in annualized gains. Now, after a streak of steep losses, they’re abruptly returning client cash and moving on.

Publicly traded shale drillers are buying private-equity backed explorers and that’s threatening to slow oil-production growth in North America’s biggest crude field at the worst possible time.

Clayton, Dubilier & Rice and TPG offered to buy all of the outstanding shares of animal-health technology and services provider Covetrus Inc. for $21 a share in cash.