ADAGE CAPITAL PARTNERS GP, L.L.C.

Position in MP — MP Materials Corp. / DE

CIK 1165408 Boston, MA

Position in MP

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$1,447,800

-$883,417 QoQ

Shares Held

30,000

-79.9% QoQ

Ownership

0.017%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2020

8 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Basic Materials · as of Mar 31, 2026

ADAGE CAPITAL PARTNERS GP, L.L.C. holds $105,878,594 across 5 Other Industrial Metals & Mining names. MP ranks #5 (1.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	RIO	Rio Tinto PLC	524,602	$48,940,120
2	TECK	Teck Resources Ltd	616,916	$31,925,403
3	USAR	USA Rare Earth, Inc.	1,160,000	$17,556,600
4	LZM	Lifezone Metals Ltd	1,788,295	$6,008,671
5	MP	MP Materials Corp. / DE This page	30,000	$1,447,800

8 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,447,800	30,000	-79.9%	Shares	Sole	2026-05-15
2024-12-31	$2,331,217	149,437	-70.1%	Shares	Sole	2025-02-14
2023-06-30	$11,440,000	500,000	0.0%	Shares	Other	2023-08-14
2023-03-31	$14,095,000	500,000	-16.7%	Shares	Sole	2023-05-15
2022-12-31	$14,568,000	600,000	+300.0%	Shares	Sole	2023-02-14
2022-09-30	$4,095,000	150,000	-40.0%	Shares	Sole	2022-11-14
2021-09-30	$8,057,500	250,000	+66.7%	Shares	Sole	2021-11-15
2020-12-31	$4,825,500	150,000	—	Shares	Sole	2021-02-16
No filing history on record for this holder in this stock.