Jim Simons’s Rivian RIVN Stock Holding History

Jim Simons’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 Q1	$164M	Sell	10,917,096 -5,480,400	-33%	-$87.6M	0.26%	74
2025 Q4	$323M	Buy	16,397,496 +4,012,386	+32%	+$63.7M	0.5%	27
2025 Q3	$182M	Buy	12,385,110 +10,393,910	+522%	+$139M	0.24%	76
2025 Q2	$27.4M	Buy	+1,991,200	New	+$27M	0.04%	581
2025 Q1	–	Sell	-3,407,500	Closed	-$45.3M	–	3773
2024 Q4	$45.3M	Sell	3,407,500 -2,854,795	-46%	-$32.9M	0.07%	355
2024 Q3	$70.3M	Buy	6,262,295 +831,795	+15%	+$12M	0.11%	226
2024 Q2	$72.9M	Buy	5,430,500 +3,285,867	+153%	+$34.3M	0.12%	184
2024 Q1	$23.5M	Buy	2,144,633 +1,817,233	+555%	+$26.2M	0.04%	564
2023 Q4	$7.68M	Sell	327,400 -3,702,500	-92%	-$69.6M	0.01%	1069
2023 Q3	$97.8M	Buy	4,029,900 +927,900	+30%	+$21.7M	0.17%	124
2023 Q2	$51.7M	Buy	3,102,000 +1,908,400	+160%	+$26.7M	0.07%	308
2023 Q1	$18.5M	Buy	+1,193,600	New	+$20.2M	0.02%	763
2022 Q4	–	Sell	-12,500	Closed	-$411K	–	4350
2022 Q3	$411K	Sell	12,500 -1,903,200	-99%	-$64.9M	﹤0.01%	3044
2022 Q2	$49.3M	Buy	+1,915,700	New	+$59.8M	0.06%	370

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

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

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

UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Jim Simons's RIVN Position: Q1 2026 in Review

Jim Simons reduced its Rivian (RIVN) stake by 33% in Q1 2026, selling an estimated $87.6M and leaving 10,917,096 shares worth $164M. The position accounts for 0.26% of the portfolio, ranked #74.

Jim Simons first reported a position in RIVN in Q2 2022 and has held it in 14 quarters since. The position peaked at $323M in Q4 2025. 807 funds tracked by Wall St. Rank hold RIVN as of Q1 2026.

Jim Simons held 10,917,096 shares of Rivian worth $164M as of Q1 2026.
Jim Simons sold 5,480,400 Rivian shares in Q1 2026, an estimated $87.6M.
Rivian made up 0.26% of Jim Simons's portfolio in Q1 2026, its #74 holding.
Jim Simons first reported a position in Rivian in Q2 2022 and has held it in 14 quarters since.
Jim Simons's Rivian position peaked at $323M in Q4 2025.
807 funds tracked by Wall St. Rank held Rivian as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.