Rubrik, Inc. (RBRK) Institutional Ownership

Ownership Summary

According to SEC filings for the period ending December 2025, Rubrik, Inc. (NYSE:RBRK) is held by 12 institutional firms.

• Rubrik saw its institutional ownership percentage fell to 0.4% in December 2025 from 46.2% in September 2025.
• Quarterly data indicates a -6.07% shift in institutional share volume, and the annual owner count reflects a decrease of 95.18%.
• During the quarter, 5 institutions bought more Rubrik shares, 5 sold shares, and 2 of the 12 total investors held their position steady.
• The aggregate institutional position in Rubrik now stands at 819.95K shares as of December 2025, after investors decreased their holdings (down by 52.97K shares quarter on quarter which is down 66.77Mn shares year over year).
• With 642.21K shares, Assenagon Asset Management S.A. commands the largest institutional position in Rubrik as of December 31, 2025, equating to 0.32% of the company.
• Among the most significant buyers of Rubrik during December 2025 were SG Americas Securities, LLC (71.46K), Teamwork Financial Advisors, LLC (8.09K), GAMMA Investing LLC (498), True Wealth Design, LLC (35), Park Place Capital Corp (11).
• Leading sellers of Rubrik stock in December 2025 included Assenagon Asset Management S.A. (117.05K), NORDEA INVESTMENT MANAGEMENT AB (10.47K), Diversified Trust Co (4.64K), Green Alpha Advisors, LLC (624), Noble Wealth Management PBC (275).
• The top 10 institutional holders of Rubrik for the quarter ending December 2025 included Assenagon Asset Management S.A. (642.21K), SG Americas Securities, LLC (84.59K), NORDEA INVESTMENT MANAGEMENT AB (57.41K), Holos Integrated Wealth LLC (10.00K), Teamwork Financial Advisors, LLC (8.09K), Diversified Trust Co (6.54K), Green Alpha Advisors, LLC (5.82K), Noble Wealth Management PBC (4.49K), GAMMA Investing LLC (709), True Wealth Design, LLC (35).