SEC Sent Query to Musk Last Month Over Major Twitter Stake (2)

The US Securities and Exchange Commission sent a query last month to Elon Musk over how he disclosed his major stake in Twitter Inc. -- the clearest signal yet that the Wall Street regulator is scrutinizing his efforts to buy the social network.

The SEC requested information from Musk about the timing of his disclosure and the type of filing he made, according to a letter dated April 4 that the SEC released Friday. The regulator asked Musk why it “does not appear to have been made within the required 10 days from the date of acquisition as required.”

Musk ...