 Shares of PPG Industries Inc. PPG, -1.15 fell nearly 3 in the extended session Thursday after the paint and coatings maker reported fourth-quarter profit and sales above Wall Street expectations but said pandemic-related disruptions continue to impact production and sales, and it will increase prices to mitigate soaring costs. PPG said it earned 267 million, or 1.12 a share, in the quarter, compared with 272 million, or 1.14 a share, in the year-ago period. 