ARDSLEY ADVISORY PARTNERS LP

Position in USAR — USA Rare Earth, Inc.

CIK 900529 Norwalk, CT

Position in USAR

as of Jun 30, 2026 · filed Jul 13, 2026 Compact

Position Value

$215,800

New position

Shares Held

10,000

first reported quarter

Ownership

0.004%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#10

of 30 holders

Holding Since

Jun 2026

1 quarter on record

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

Basic Materials · as of Jun 30, 2026

ARDSLEY ADVISORY PARTNERS LP holds $11,912,350 across 5 Other Industrial Metals & Mining names. USAR ranks #5 (1.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GSM	Ferroglobe PLC	2,185,000	$6,948,300
2	SKE	Skeena Resources Ltd	145,000	$3,865,700
3	NB	Niocorp Developments Ltd	125,000	$602,500
4	MP	MP Materials Corp. / DE	5,000	$280,050
5	USAR	USA Rare Earth, Inc. This page	10,000	$215,800

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$215,800	10,000	—	Shares	Sole	2026-07-13
No filing history on record for this holder in this stock.