Rubrik, Inc. (RBRK) Institutional Ownership

Ownership Summary

Rubrik, Inc. (NYSE:RBRK) has 462 institutional investors with active 13F positions as of December 2025.

• Their combined ownership stood at 57.8% of outstanding shares in December 2025, up from 54.6% in September 2025.
• They increased total shares held in Rubrik by 14.9% from last quarter, and the number of investors in RBRK increased 84.8% annually.
• During the quarter, 294 of these 462 funds increased positions in RBRK, 123 reduced exposure, and 45 held steady.
• The aggregate institutional position in Rubrik amounted to 114.71Mn shares as of December 2025, up by 14.88Mn shares quarter on quarter, and up 43.97Mn shares year over year.
• As of December 31, 2025, BlackRock, Inc. held the largest stake in Rubrik with 8.82Mn shares, accounting for 4.44% of total shares outstanding.
• Top purchasers of RBRK stock for the quarter ending December 2025 included VANGUARD PORTFOLIO MANAGEMENT LLC (8.03Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.56Mn), FMR LLC (2.99Mn), Pictet Asset Management Holding SA (1.7Mn), TWO SIGMA INVESTMENTS, LP (1.6Mn).
• The largest sales of RBRK for the quarter ending December 2025 came from BlackRock, Inc. (2.9Mn), FIRST TRUST ADVISORS LP (2.17Mn), Federated Hermes, Inc. (1.13Mn), Goldman Sachs Group Inc (999.12K), D. E. Shaw & Co., Inc. (871.8K).
• Rubrik's 10 largest shareholders as of December 2025 include BlackRock, Inc. (8.82Mn), FMR LLC (8.26Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (8.03Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.56Mn), FIRST TRUST ADVISORS LP (4.9Mn), VOYA INVESTMENT MANAGEMENT LLC (3.74Mn), PointState Capital LP (3.65Mn), Pictet Asset Management Holding SA (3.33Mn), GEODE CAPITAL MANAGEMENT, LLC (2.7Mn), State Street Corp (2.57Mn) per Business Quant data.