Rumble (NASDAQ:RUM – Get Free Report) and Klaviyo (NYSE:KVYO – Get Free Report) are both computer and technology companies, but which is the better stock? Institutional & Insider Ownership26.2% of Rumble shares are owned by institutional investors. Comparatively, 45.4% of Klaviyo shares are owned by institutional investors. 70.1% of Rumble shares are owned by insiders. Comparatively, 53.2% of Klaviyo shares are owned by insiders.