Hospices in California have undergone significant and complicated ownership changes in recent years. Little is known about the impact of these ownership changes on hospices. The purpose of our longitudinal, retrospective descriptive study was to describe the ownership changes impacting hospices 2018 to 2021 in California. Using descriptive statistics, we measured characteristics of hospices with and without ownership changes employing public data from the California Home Health Agencies and Hospice Annual Utilization Report. Ownership change characteristics were measured via publicly available hospice provider and facility data. Spatial characteristics were additionally measured via latitude and longitude publicly available data. Our findings showed that ownership changes were significant and complicated. An influx of for-profit organizations into the California market was primarily responsible for these changes. Additionally, lack of corporate financial public disclosure and voluntary hospice accreditation, certification, and reporting result in a lack of free, publicly available, definitive comprehensive data on for-profit hospice ownership. This hinders information gathering on and provider/familial choice-making regarding hospices. Our study provides critical insight into the impact of ownership changes and lack of definitive, free, publicly available information on adult hospices in California caring for children and has important clinical, research, and policy implications.