Shares of Micron Technology have surged since the start of the year, and one top executive appears to be taking profits—but his returns could have been even bigger. A securities filing on Monday shows that Manish Bhatia, Micron’s executive vice president of global operations, sold a total of 26,623 shares through six separate transactions on Jan. 22. The transactions were conducted at prices ranging from $388.41 to $395.905 a share, amounting to more than $10.4 million worth of company stock.