Wiliam, W., Dzulfa Khairuna, Tesalonika Bawamenewi, Mikka Terayani Siregar and Hendra Saputra 2024. The Influence of Activity Ratios, Company Size, and Leverage on Stock Returns in Pharmaceutical Sector Manufacturing Companies Listed on the Indonesian Stock Exchange for the 2018–2021 Period. International Journal of Economics, Business and Innovation Research. 3, 03 (May 2024), 461-476. DOI:https://doi.org/10.63922/ijebir.v3i03.879.