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Entropy Technologies’s Rivian RIVN Stock Holding History

Entropy Technologies’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 		$826K Buy
+47,603
New +$742K 0.03% 554
2025
Q4 		– Sell
-262,734
Closed -$3.86M – 1116
2025
Q3 		$3.86M Buy
+262,734
New +$3.52M 0.29% 92
2025
Q2 		– Sell
-29,400
Closed -$366K – 986
2025
Q1 		$366K Sell
29,400
-69,595
-70% -$876K 0.04% 500
2024
Q4 		$1.32M Buy
+98,995
New +$1.14M 0.14% 219
2024
Q3 		– Sell
-124,730
Closed -$1.67M – 906
2024
Q2 		$1.67M Sell
124,730
-367,412
-75% -$3.84M 0.18% 161
2024
Q1 		$5.39M Buy
+492,142
New +$7.09M 0.57% 22

Other funds holding RIVN

ACI
Amazon.com Inc Seattle, Washington $4.42B AUM 22.6% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
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
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
U
Uber San Francisco, California $4.51B AUM 1.92% 1-Year Est. Return

Entropy Technologies's RIVN Position: Q2 2026 in Review

Entropy Technologies opened a new position in Rivian (RIVN) in Q2 2026: 47,603 shares worth $826K. The stake represents 0.03% of the portfolio and ranks #554 among its holdings. This is a return to the name: Entropy Technologies previously reported a position in RIVN as recently as Q3 2025.

Entropy Technologies first reported a position in RIVN in Q1 2024 and has held it in 6 quarters since. The position peaked at $5.39M in Q1 2024. 817 funds tracked by Wall St. Rank hold RIVN as of Q2 2026.

  • Entropy Technologies held 47,603 shares of Rivian worth $826K as of Q2 2026.
  • Rivian was a new Entropy Technologies position in Q2 2026.
  • Rivian made up 0.03% of Entropy Technologies's portfolio in Q2 2026, its #554 holding.
  • Entropy Technologies first reported a position in Rivian in Q1 2024 and has held it in 6 quarters since.
  • Entropy Technologies's Rivian position peaked at $5.39M in Q1 2024.
  • 817 funds tracked by Wall St. Rank held Rivian as of Q2 2026.

Based on Entropy Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.