PDT Partners’s Rubrik RBRK Stock Holding History

PDT Partners’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	-37,168	Closed	-$2.84M	–	624
2025 Q4	$2.84M	Sell	37,168 -9,415	-20%	-$722K	0.18%	193
2025 Q3	$3.83M	Sell	46,583 -21,666	-32%	-$1.86M	0.24%	150
2025 Q2	$6.11M	Sell	68,249 -9,840	-13%	-$778K	0.35%	71
2025 Q1	$4.76M	Buy	78,089 +22,573	+41%	+$1.54M	0.34%	76
2024 Q4	$3.63M	Buy	55,516 +4,516	+9%	+$223K	0.32%	94
2024 Q3	$1.64M	Buy	+51,000	New	+$1.69M	0.15%	262

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 $105B AUM 38.07% 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

PDT Partners's RBRK Position: Q1 2026 in Review

PDT Partners sold out of Rubrik (RBRK) in Q1 2026, closing a stake of 37,168 shares — an estimated $2.84M sold.

PDT Partners first reported a position in RBRK in Q3 2024 and held it in 6 quarters. The position peaked at $6.11M in Q2 2025. 463 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

PDT Partners reported no remaining Rubrik position as of Q1 2026 after selling out during the quarter.
PDT Partners sold 37,168 Rubrik shares in Q1 2026, an estimated $2.84M.
PDT Partners first reported a position in Rubrik in Q3 2024 and held it in 6 quarters.
PDT Partners's Rubrik position peaked at $6.11M in Q2 2025.
463 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

Based on PDT Partners's 13F filing for Q1 2026, filed 15 May 2026.