Linda H. Aiken (PSC/PARC Research Associate), Angela Lee Duckworth (PSC Research Associate), and John Q. Trojanowski (PARC Research Associate) were featured in Clarivate's list of Highly Cited Researchers in 2021. These researchers are recognized pioneers in their fields over the last decade, demonstrated by the production of multiple highly-cited papers that rank in the top 1% by citations in the Web of Science within their field.