Leading Wall Street analysts have updated their outlook on several prominent companies. Jefferies upgraded aTyr Pharma, Inc. (NASDAQ: ATYR) by raising the price target to $17 from $9, with analyst Roger Song maintaining a Buy rating. The stock closed at $4.95. B of A Securities also revised up the price target for C.H. Robinson Worldwide, Inc. (NASDAQ: CHRW) to $136 from $120, with analyst Ken Hoexter reaffirming a Buy rating. C.H. Robinson shares closed at $122.80. Additionally, Goldman Sachs increased Walmart Inc.'s (NYSE: WMT) price target from $101 to $114, with analyst Kate McShane sustaining a Buy rating. Walmart shares ended at $97.96. For a comprehensive overview of all analyst rating updates, including upgrades and downgrades, consult our analyst ratings page for further insights on these companies.