ARDSLEY ADVISORY PARTNERS LP

Position in GSM — Ferroglobe PLC

CIK 900529 Norwalk, CT

Back to GSM Full portfolio

Position in GSM

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

Position Value

$6,948,300

-$2,888,500 QoQ

Shares Held

2,185,000

+3.1% QoQ

Ownership

1.17%

of shares outstanding

% of Portfolio

0.78%

of 13F equity value

Holder Rank

of 4 holders

Holding Since

Mar 2020

23 quarters on record

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

Common Shares in GSM Over Time

Shares Held

Position Value (USD)

Derivatives in GSM

reported options exposure · as of Sep 30, 2024

CallValue

$1,162,320

CallShares

250,500

PutValue

PutShares

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Other Industrial Metals & Mining

Basic Materials · as of Jun 30, 2026

ARDSLEY ADVISORY PARTNERS LP holds $11,912,350 across 5 Other Industrial Metals & Mining names. GSM ranks #1 (58.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GSM	Ferroglobe PLC This page	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.	10,000	$215,800

All Filings in GSM

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32 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$6,948,300	2,185,000	+3.1%	Shares	Sole	2026-07-13
2025-12-31	$9,836,800	2,120,000	+5.6%	Shares	Sole	2026-02-17
2025-06-30	$7,367,873	2,007,595	+11.4%	Shares	Sole	2025-08-14
2025-03-31	$6,687,627	1,802,595	+8.1%	Shares	Sole	2025-05-15
2024-12-31	$6,336,861	1,667,595	-12.9%	Shares	Sole	2025-02-14
2024-09-30	$8,882,560	1,914,345	+664.2%	Shares	Sole	2024-11-14
2024-09-30	$1,162,320	250,500	-50.0%	Call	Sole	2024-11-14
2024-06-30	$2,682,680	500,500	-73.1%	Call	Sole	2024-08-14
2024-06-30	$9,966,089	1,859,345	-18.3%	Shares	Sole	2024-08-14
2024-03-31	$11,328,728	2,274,845	+354.5%	Shares	Sole	2024-05-15
2023-12-31	$3,258,255	500,500	-72.7%	Call	Sole	2024-02-14
2023-12-31	$11,913,300	1,830,000	+79.2%	Shares	Sole	2024-02-14
2023-09-30	$5,309,200	1,021,000	-0.9%	Shares	Sole	2023-11-14
2023-06-30	$4,913,100	1,030,000	+415.0%	Shares	Sole	2023-08-14
2023-06-30	$954,000	200,000	-58.0%	Call	Sole	2023-08-14
2023-03-31	$2,353,910	476,500	+367.2%	Shares	Sole	2023-05-15
2022-12-31	$392,700	102,000	+2.0%	Shares	Sole	2023-02-14
2022-09-30	$528,000	100,000	+29.9%	Call	Sole	2022-11-14
2022-09-30	$406,560	77,000	-23.0%	Shares	Sole	2022-11-14
2022-06-30	$594,000	100,000	-56.9%	Call	Sole	2022-08-15
2022-06-30	$1,378,080	232,000	-59.0%	Shares	Sole	2022-08-15
2022-03-31	$4,358,200	566,000	+61.7%	Shares	Sole	2022-05-16
2021-12-31	$2,173,500	350,000	-81.6%	Call	Sole	2022-02-14
2021-12-31	$11,792,790	1,899,000	+6.9%	Shares	Sole	2022-02-14
2021-09-30	$15,451,200	1,776,000	+407.4%	Shares	Sole	2021-11-15
2021-09-30	$3,045,000	350,000	+40.0%	Call	Sole	2021-11-15
2021-06-30	$1,530,000	250,000	-79.8%	Call	Sole	2021-08-16
2021-06-30	$7,570,440	1,237,000	+20.7%	Shares	Sole	2021-08-16
2021-03-31	$3,874,500	1,025,000	-66.9%	Shares	Sole	2021-05-17
2020-12-31	$5,075,800	3,095,000	+30850.0%	Shares	Sole	2021-02-16
2020-06-30	$5,000	10,000	-66.7%	Shares	Sole	2020-08-14
2020-03-31	$13,800	30,000	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.