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Massar Capital Management’s Rivian RIVN Stock Holding History

Massar Capital Management’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
2025
Q4 		– Sell
-70,000
Closed -$1.03M – 367
2025
Q3 		$1.03M Hold
70,000
– – 0.14% 99
2025
Q2 		$962K Buy
70,000
+35,000
+100% +$475K 0.72% 39
2025
Q1 		$436K Buy
+35,000
New +$440K 0.49% 49

Other funds holding RIVN

ACI
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Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Two Sigma Advisers
Two Sigma Advisers New York $51.4B AUM 31.07% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Massar Capital Management's RIVN Position: Q4 2025 in Review

Massar Capital Management sold out of Rivian (RIVN) in Q4 2025, closing a stake of 70,000 shares — an estimated $1.03M sold.

Massar Capital Management first reported a position in RIVN in Q1 2025 and held it in 3 quarters. The position peaked at $1.03M in Q3 2025. 802 funds tracked by Wall St. Rank hold RIVN as of Q4 2025.

  • Massar Capital Management reported no remaining Rivian position as of Q4 2025 after selling out during the quarter.
  • Massar Capital Management sold 70,000 Rivian shares in Q4 2025, an estimated $1.03M.
  • Massar Capital Management first reported a position in Rivian in Q1 2025 and held it in 3 quarters.
  • Massar Capital Management's Rivian position peaked at $1.03M in Q3 2025.
  • 802 funds tracked by Wall St. Rank held Rivian as of Q4 2025.

Based on Massar Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.