Shares of AT&T Inc. rose 0.4% in premarket trading Monday, after alternative asset manager Apollo Global Management Inc. announced an agreement to invest $2 billion in preferred stock of AT&T subsidiary AT&T Mobility II LLC. Apollo expects to complete the investment in June 2023. AT&T Mobility plans to use the proceeds to partially replace the $8 billion in preferred interests that were outstanding before the fourth quarter of 2022. AT&T’s stock had slumped 3.8% on Friday after a report Amazon.com Inc. was in talks with certain wireless carriers about offering phone service plans to Prime members. The stock has tumbled 19.1% over the past three months through Friday, while the Communication Services Select Sector SPDR exchange-traded fund has rallied 15.3% and the S&P 500 has gained 5.9%.