Adage Capital Partners’s MP Materials MP Stock Holding History

Adage Capital Partners’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	$1.45M	Buy	+30,000	New	+$1.79M	﹤0.01%	859
2025 Q1	–	Sell	-149,437	Closed	-$2.33M	–	906
2024 Q4	$2.33M	Buy	+149,437	New	+$2.77M	﹤0.01%	785
2023 Q3	–	Sell	-500,000	Closed	-$11.4M	–	911
2023 Q2	$11.4M	Hold	500,000	–	–	0.02%	543
2023 Q1	$14.1M	Sell	500,000 -100,000	-17%	-$3.03M	0.03%	529
2022 Q4	$14.6M	Buy	600,000 +450,000	+300%	+$13.6M	0.03%	533
2022 Q3	$4.09M	Buy	+150,000	New	+$4.9M	0.01%	808
2021 Q4	–	Sell	-250,000	Closed	-$8.06M	–	1075
2021 Q3	$8.06M	Buy	+250,000	New	+$8.69M	0.02%	756
2021 Q1	–	Sell	-150,000	Closed	-$4.83M	–	995
2020 Q4	$4.83M	Buy	+150,000	New	+$2.9M	0.01%	692

Other funds holding MP

Hancock Prospecting West Perth, Australia $3.33B AUM 65.96% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

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 New York $1.66T AUM 25.57% 1-Year Est. Return

VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Adage Capital Partners's MP Position: Q1 2026 in Review

Adage Capital Partners opened a new position in MP Materials (MP) in Q1 2026: 30,000 shares worth $1.45M. The stake represents ﹤0.01% of the portfolio and ranks #859 among its holdings. This is a return to the name: Adage Capital Partners previously reported a position in MP as recently as Q4 2024.

Adage Capital Partners first reported a position in MP in Q4 2020 and has held it in 8 quarters since. The position peaked at $14.6M in Q4 2022. 710 funds tracked by Wall St. Rank hold MP as of Q1 2026.

Adage Capital Partners held 30,000 shares of MP Materials worth $1.45M as of Q1 2026.
MP Materials was a new Adage Capital Partners position in Q1 2026.
MP Materials made up ﹤0.01% of Adage Capital Partners's portfolio in Q1 2026, its #859 holding.
Adage Capital Partners first reported a position in MP Materials in Q4 2020 and has held it in 8 quarters since.
Adage Capital Partners's MP Materials position peaked at $14.6M in Q4 2022.
710 funds tracked by Wall St. Rank held MP Materials as of Q1 2026.

Based on Adage Capital Partners's 13F filing for Q1 2026, filed 15 May 2026.