S&CO Inc’s Rubrik RBRK Stock Holding History

S&CO Inc’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 Q2	$4.3M	Hold	53,612	–	–	0.25%	79
2026 Q1	$2.63M	Hold	53,612	–	–	0.16%	101
2025 Q4	$4.1M	Hold	53,612	–	–	0.25%	81
2025 Q3	$4.41M	Buy	53,612 +27,179	+103%	+$2.34M	0.27%	79
2025 Q2	$2.37M	Buy	26,433 +13,224	+100%	+$1.05M	0.15%	107
2025 Q1	$805K	Buy	+13,209	New	+$902K	0.05%	151

Other funds holding RBRK

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

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Norges Bank Oslo, Norway $1T AUM

VOYA Investment Management Atlanta, Georgia $116B AUM 61.47% 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

S&CO Inc's RBRK Position: Q2 2026 in Review

S&CO Inc held its Rubrik (RBRK) position steady in Q2 2026 at 53,612 shares worth $4.3M. The position accounts for 0.25% of the portfolio, ranked #79.

S&CO Inc first reported a position in RBRK in Q1 2025 and has held it in 6 quarters since. The position peaked at $4.41M in Q3 2025. 574 funds tracked by Wall St. Rank hold RBRK as of Q2 2026.

S&CO Inc held 53,612 shares of Rubrik worth $4.3M as of Q2 2026.
S&CO Inc left its Rubrik share count unchanged in Q2 2026.
Rubrik made up 0.25% of S&CO Inc's portfolio in Q2 2026, its #79 holding.
S&CO Inc first reported a position in Rubrik in Q1 2025 and has held it in 6 quarters since.
S&CO Inc's Rubrik position peaked at $4.41M in Q3 2025.
574 funds tracked by Wall St. Rank held Rubrik as of Q2 2026.

Based on S&CO Inc's 13F filing for Q2 2026, filed 6 Aug 2026.