Frank C. Sullivan owns 1.45 million shares of RPM International which indicates a strong personal investment in the company's success. His holdings have fluctuated over the years, showing confidence in the company's growth. At one point, his stock holdings were...

Frank C. Sullivan owns 1.45 million shares of RPM International which indicates a strong personal investment in the company's success. His holdings have fluctuated over the years, showing confidence in the company's growth. At one point, his stock holdings were estimated at a value of over $2 million. This shows not only his commitment to the company but also his belief in its future prospects. As of the most recent data, his stake reflects approximately 1.1% of the total shares, making him a significant shareholder. Given the company's stable growth, this portion has likely appreciated since he first acquired it.