This study investigates the determinants of learners' information sharing intentions in collaborative learning through the adoption of open learner models. Statistical analyses are performed on the data collected from 235 undergraduate students in Malaysian universities through survey to test the relationship between perceived usefulness, perceived ease of use, trust and the information sharing intention of learners. The result reveals that all three factors have a significant impact on learners' information sharing behaviors in collaborative learning through the adoption of open learner models. Such findings are useful for educational institutions in their adoption of open learner models for information sharing in technology-based collaborative learning.