Tower Research Capital (TRC)’s Rubrik RBRK Stock Holding History

Tower Research Capital (TRC)’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	$79.3K	Buy	1,620 +1,431	+757%	+$82.1K	﹤0.01%	2368
2025 Q4	$14.5K	Sell	189 -4,006	-95%	-$307K	﹤0.01%	3347
2025 Q3	$345K	Buy	4,195 +2,444	+140%	+$210K	0.01%	1095
2025 Q2	$157K	Sell	1,751 -2,508	-59%	-$198K	﹤0.01%	2008
2025 Q1	$260K	Buy	4,259 +1,233	+41%	+$84.2K	0.01%	1221
2024 Q4	$198K	Buy	3,026 +2,361	+355%	+$117K	﹤0.01%	1729
2024 Q3	$21.4K	Buy	+665	New	+$22K	﹤0.01%	3199

Other funds holding RBRK

BlackRock New York $5.72T AUM 30.48% 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 $140B AUM 27.84% 1-Year Est. Return

VOYA Investment Management Atlanta, Georgia $96.1B AUM 40.06% 1-Year Est. Return

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

Pictet Asset Management Carouge, Switzerland $94.8B AUM 24.11% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Tower Research Capital (TRC)'s RBRK Position: Q1 2026 in Review

Tower Research Capital (TRC) increased its Rubrik (RBRK) stake by 757% in Q1 2026, buying an estimated $82.1K and bringing the position to 1,620 shares worth $79.3K. The position accounts for ﹤0.01% of the portfolio, ranked #2368.

Tower Research Capital (TRC) first reported a position in RBRK in Q3 2024 and has held it in 7 quarters since. The position peaked at $345K in Q3 2025. 462 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

Tower Research Capital (TRC) held 1,620 shares of Rubrik worth $79.3K as of Q1 2026.
Tower Research Capital (TRC) bought 1,431 Rubrik shares in Q1 2026, an estimated $82.1K.
Rubrik made up ﹤0.01% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #2368 holding.
Tower Research Capital (TRC) first reported a position in Rubrik in Q3 2024 and has held it in 7 quarters since.
Tower Research Capital (TRC)'s Rubrik position peaked at $345K in Q3 2025.
462 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.