LMR Partners’s Rivian RIVN Stock Holding History

LMR Partners’s Portfolio RIVN Stock Details RIVN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-57,310	Closed	-$894K	–	1736
2026 Q1	$863K	Sell	57,310 -15,747	-22%	-$252K	﹤0.01%	1008
2025 Q4	$1.44M	Sell	73,057 -52,713	-42%	-$837K	﹤0.01%	893
2025 Q3	$1.85M	Buy	+125,770	New	+$1.69M	0.01%	757

Other funds holding RIVN

ACI

Amazon.com Inc Seattle, Washington $4.42B AUM 22.6% 1-Year Est. Return

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

Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

SPC

Slate Path Capital New York $7.22B AUM 110.75% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Uber San Francisco, California $4.51B AUM 1.92% 1-Year Est. Return

LMR Partners's RIVN Position: Q2 2026 in Review

LMR Partners sold out of Rivian (RIVN) in Q2 2026, closing a stake of 57,310 shares — an estimated $894K sold.

LMR Partners first reported a position in RIVN in Q3 2025 and held it in 3 quarters. The position peaked at $1.85M in Q3 2025. 819 funds tracked by Wall St. Rank hold RIVN as of Q2 2026.

LMR Partners reported no remaining Rivian position as of Q2 2026 after selling out during the quarter.
LMR Partners sold 57,310 Rivian shares in Q2 2026, an estimated $894K.
LMR Partners first reported a position in Rivian in Q3 2025 and held it in 3 quarters.
LMR Partners's Rivian position peaked at $1.85M in Q3 2025.
819 funds tracked by Wall St. Rank held Rivian as of Q2 2026.

Based on LMR Partners's 13F filing for Q2 2026, filed 14 Aug 2026.