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CSS LLC’s MP Materials MP Stock Holding History

CSS LLC’s Portfolio MP Stock Details MP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-46,800
Closed -$2.36M – 1118
2025
Q4 		$2.36M Sell
46,800
-28,000
-37% -$1.78M 0.11% 156
2025
Q3 		$5.02M Buy
74,800
+29,100
+64% +$1.83M 0.23% 81
2025
Q2 		$1.52M Sell
45,700
-10,000
-18% -$255K 0.07% 218
2025
Q1 		$1.36M Sell
55,700
-5,000
-8% -$116K 0.07% 206
2024
Q4 		$947K Buy
60,700
+5,000
+9% +$92.7K 0.04% 343
2024
Q3 		$983K Buy
55,700
+10,000
+22% +$136K 0.05% 308
2024
Q2 		$582K Buy
45,700
+25,700
+129% +$403K 0.03% 439
2024
Q1 		$286K Buy
+20,000
New +$316K 0.02% 579
2023
Q4 		– Sell
-10,300
Closed -$197K – 890
2023
Q3 		$197K Buy
+10,300
New +$229K 0.01% 612
2021
Q4 		– Sell
-5,800
Closed -$188K – 1291
2021
Q3 		$188K Sell
5,800
-2,000
-26% -$69.6K 0.01% 891
2021
Q2 		$288K Sell
7,800
-36,600
-82% -$1.14M 0.01% 773
2021
Q1 		$1.6M Hold
44,400
– – 0.07% 273
2020
Q4 		$1.43M Buy
+44,400
New +$859K 0.05% 252

Other funds holding MP

HP
Hancock Prospecting West Perth, Australia $3.33B AUM 65.96% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

CSS LLC's MP Position: Q1 2026 in Review

CSS LLC sold out of MP Materials (MP) in Q1 2026, closing a stake of 6,983 shares — an estimated $353K sold.

CSS LLC first reported a position in MP in Q4 2020 and held it in 7 quarters. The position peaked at $995K in Q1 2021. 710 funds tracked by Wall St. Rank hold MP as of Q1 2026.

  • CSS LLC reported no remaining MP Materials position as of Q1 2026 after selling out during the quarter.
  • CSS LLC sold 6,983 MP Materials shares in Q1 2026, an estimated $353K.
  • CSS LLC first reported a position in MP Materials in Q4 2020 and held it in 7 quarters.
  • CSS LLC's MP Materials position peaked at $995K in Q1 2021.
  • 710 funds tracked by Wall St. Rank held MP Materials as of Q1 2026.

Based on CSS LLC's 13F filing for Q1 2026, filed 15 May 2026.