Mass General Brigham’s Rubrik RBRK Stock Holding History

Mass General Brigham’s Portfolio RBRK Stock Details RBRK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-14,000	Closed	-$1.07M	–	7
2025 Q4	$1.07M	Buy	+14,000	New	+$1.07M	0.13%	7

Other funds holding RBRK

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

VOYA Investment Management Atlanta, Georgia $116B AUM 61.47% 1-Year Est. Return

PointState Capital New York $7.9B AUM 42.31% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Mass General Brigham's RBRK Position: Q1 2026 in Review

Mass General Brigham sold out of Rubrik (RBRK) in Q1 2026, closing a stake of 14,000 shares — an estimated $1.07M sold.

Mass General Brigham first reported a position in RBRK in Q4 2025 and held it in 1 quarter. The position peaked at $1.07M in Q4 2025. 463 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

Mass General Brigham reported no remaining Rubrik position as of Q1 2026 after selling out during the quarter.
Mass General Brigham sold 14,000 Rubrik shares in Q1 2026, an estimated $1.07M.
Mass General Brigham first reported a position in Rubrik in Q4 2025 and held it in 1 quarter.
Mass General Brigham's Rubrik position peaked at $1.07M in Q4 2025.
463 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

Based on Mass General Brigham's 13F filing for Q1 2026, filed 5 May 2026.