BLAIR WILLIAM & CO/IL

Position in MP — MP Materials Corp. / DE

CIK 902367 CHICAGO, IL

Position in MP

as of Jun 30, 2026 · filed Aug 11, 2026 Compact

Position Value

$1,139,803

+$536,988 QoQ

Shares Held

20,350

+62.9% QoQ

Ownership

0.011%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#291

of 758 holders

Holding Since

Sep 2022

15 quarters on record

Voting authority Sole 99% Shared 0% None 1%

Basic Materials · as of Jun 30, 2026

BLAIR WILLIAM & CO/IL holds $7,646,702 across 7 Other Industrial Metals & Mining names. MP ranks #3 (14.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	USAR	USA Rare Earth, Inc.	137,363	$2,964,293
2	RIO	Rio Tinto PLC	23,889	$2,267,782
3	MP	MP Materials Corp. / DE This page	20,350	$1,139,803
4	BHP	BHP Group Ltd	8,915	$742,708
5	IPX	IPERIONX Ltd	12,036	$357,830
6	NB	Niocorp Developments Ltd	25,604	$123,411
7	SLI	Standard Lithium Ltd.	18,500	$50,875

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,139,803	20,350	+62.9%	Shares	Sole	2026-08-11
2026-03-31	$602,815	12,491	-11.5%	Shares	Sole	2026-05-08
2025-12-31	$712,786	14,109	+12.0%	Shares	Sole	2026-02-17
2025-09-30	$844,612	12,593	+83.2%	Shares	Sole	2025-11-12
2025-06-30	$228,697	6,874	-49.6%	Shares	Sole	2025-07-24
2024-12-31	$212,659	13,632	-54.1%	Shares	Sole	2025-02-12
2024-09-30	$523,887	29,682	0.0%	Shares	Sole	2024-11-12
2024-06-30	$377,851	29,682	-12.4%	Shares	Sole	2024-08-12
2024-03-31	$484,512	33,882	-38.1%	Shares	Sole	2024-05-09
2023-12-31	$1,086,271	54,724	+3.8%	Shares	Sole	2024-02-12
2023-09-30	$1,007,028	52,724	-27.5%	Shares	Sole	2023-11-09
2023-06-30	$1,663,925	72,724	+842.0%	Shares	Sole	2023-08-11
2023-03-31	$217,626	7,720	-45.2%	Shares	Sole	2023-05-12
2022-12-31	$342,080	14,089	+1.8%	Shares	Sole	2023-02-10
2022-09-30	$377,804	13,839	—	Shares	Sole	2022-11-09
No filing history on record for this holder in this stock.