The healthcare giant reported mixed financial results for the fourth-quarter. 3M Co., down $7.62 to $115. The maker of Post-it notes, industrial coatings and ceramics reported weak fourth-quarter earnings and announced job cuts. Alphabet Inc., down $2.09 to $97.70. The Justice Department and eight states filed an antitrust suit against Google over its position in online advertising. Union Pacific Corp., down $6.95 to $203.18. The railroad reported weak fourth-quarter earnings and revenue. HighPeak Energy Inc., up $1.48 to $28.40. The oil and natural gas company is considering strategic alternatives, including a potential sale. GATX Corp., up $2.46 to $109.89. The railcar lessor beat analysts’ fourth-quarter earnings forecasts. Paccar Inc., up $8.83 to $111.08. The builder of Peterbilt and Kenworth trucks beat analysts’ fourth-quarter forecasts. Magna International Inc., down $4.72 to $60.74. The Canadian automotive parts maker warned investors that its profit margin fell short of forecasts last year.