GSM · Ferroglobe PLC · Shareholders & Ownership

$4.01 +0.14 (+3.49%)

Russell 2000 member Rebalance outlook locked

Market Cap

$723.15M

186.86M

Volume · Oct 27 196.72K Avg daily vol (3M) 1.45M

Every disclosed holder of GSM in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns GSM

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: shares outstanding cannot be set against these holders.

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	176	104,290,213	—	Yes
Insiders (Forms 3, 4, 5)	12	1,932,892	—	Yes
13D/G-only blocks	1	66,755,434	—	Yes
Registered funds (N-PORT, not summed)	38	5,457,774	—	No

% Out is unavailable: a foreign private issuer reports ordinary shares, a different unit from the listed shares.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of GSM

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Grupo Villar Mir, S.A.U. 13G CIK 1633094 · Unknown · Sep 30, 2026 Rule 13d-1(d), exempt investor	66,755,434	—	-760,000	Sep 30, 2026	Rule 13d-1(d), exempt investor
2	COOPER CREEK PARTNERS MANAGEMENT LLC 13F CIK 1512162 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	13,615,302	—	-100,000	Jun 30, 2026	carried, not yet filed for the newest quarter
2.1	COOPER CREEK PARTNERS MANAGEMENT LLC 13G CIK 1512162 · Investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	13,615,302	—	-100,000	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
3	Hosking Partners LLP 13G CIK 1650135 · Registered investment adviser · Sep 30, 2026 Rule 13d-1(b), qualified institution, not summed	8,374,924	—	-2,258,805	Sep 30, 2026	Rule 13d-1(b), qualified institution, not summed
3.1	Hosking Partners LLP 13F CIK 1650135 · Registered investment adviser · Sep 30, 2026	8,374,924	—	-1,855,207	Sep 30, 2026
4	DONALD SMITH & CO., INC. 13F CIK 814375 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	8,126,773	—	+2,692,069	Jun 30, 2026	carried, not yet filed for the newest quarter
5	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	7,603,051	—	+950,848	Jun 30, 2026	carried, not yet filed for the newest quarter
6	BARROW HANLEY MEWHINNEY & STRAUSS LLC 13F CIK 313028 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,113,924	—	-961,125	Jun 30, 2026	carried, not yet filed for the newest quarter
7	Old West Investment Management, LLC 13F CIK 1549358 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	4,201,296	—	+274,677	Jun 30, 2026	carried, not yet filed for the newest quarter
8	GRIZZLYROCK CAPITAL, LLC 13F CIK 2011732 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	3,565,959	—	-62,881	Jun 30, 2026	carried, not yet filed for the newest quarter
9	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,638,735	—	-129,500	Jun 30, 2026	carried, not yet filed for the newest quarter
10	CenterBook Partners LP 13F CIK 1872738 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,566,762	—	+1,631,239	Jun 30, 2026	carried, not yet filed for the newest quarter
11	AMERIPRISE FINANCIAL INC 13F CIK 820027 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,501,112	—	+284,170	Jun 30, 2026	carried, not yet filed for the newest quarter
12	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	2,190,494	—	+110,776	Jun 30, 2026	carried, not yet filed for the newest quarter
13	ARDSLEY ADVISORY PARTNERS LP 13F CIK 900529 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,185,000	—	+2,185,000	Jun 30, 2026	carried, not yet filed for the newest quarter
14	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,132,449	—	-73,934	Jun 30, 2026	carried, not yet filed for the newest quarter
14.1	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	145,791	—	0	Jul 31, 2026	Dimensional ETF Trust, not summed
14.2	Dimensional U.S. Targeted Value ETF Fund S000070901 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	142,366	—	-2,017	Jul 31, 2026	Dimensional ETF Trust, not summed
14.3	Dimensional US Small Cap Value ETF Fund S000075151 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	95,619	—	0	Jul 31, 2026	Dimensional ETF Trust, not summed
14.4	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	66,932	—	-38,696	Jul 31, 2026	Dimensional ETF Trust, not summed
14.5	Dimensional US Core Equity Market ETF Fund S000069432 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	4,722	—	0	Jul 31, 2026	Dimensional ETF Trust, not summed
15	MASTERS CAPITAL MANAGEMENT LLC 13F CIK 1104186 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,000,000	—	0	Jun 30, 2026	carried, not yet filed for the newest quarter
16	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,912,934	—	-435,517	Jun 30, 2026	carried, not yet filed for the newest quarter
17	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,779,204	—	+186,455	Jun 30, 2026	carried, not yet filed for the newest quarter
18	GENDELL JEFFREY L 13F CIK 1056581 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,641,676	—	+729,353	Jun 30, 2026	carried, not yet filed for the newest quarter
19	JACOBS LEVY EQUITY MANAGEMENT, INC 13F CIK 884414 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,493,275	—	+190,015	Jun 30, 2026	carried, not yet filed for the newest quarter
20	BRIDGEWAY CAPITAL MANAGEMENT, LLC 13F CIK 1107261 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,472,427	—	+57,090	Jun 30, 2026	carried, not yet filed for the newest quarter
21	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,236,720	—	-238,728	Jun 30, 2026	carried, not yet filed for the newest quarter
22	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,150,911	—	+1,150,911	Jun 30, 2026	carried, not yet filed for the newest quarter
23	Russell Investments Group, Ltd. 13F CIK 1692234 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,131,818	—	-77,675	Jun 30, 2026	carried, not yet filed for the newest quarter
24	Avantis U.S. Small Cap Value ETF Fund S000066459 · Registered fund · May 31, 2026 American Century ETF Trust, not summed	1,080,481	—	-570,565	May 31, 2026	American Century ETF Trust, not summed
25	AMERICAN CENTURY COMPANIES INC 13F CIK 748054 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,064,858	—	-725,322	Jun 30, 2026	carried, not yet filed for the newest quarter
26	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,033,578	—	+456,940	Jun 30, 2026	carried, not yet filed for the newest quarter
27	Empowered Funds, LLC 13F CIK 1592828 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	936,327	—	+57,090	Jun 30, 2026	carried, not yet filed for the newest quarter
28	Levi Marco Insider CIK 1703841 · Mar 18, 2026 Director, Chief Executive Officer, issuer-wide	923,818	—	—	Mar 18, 2026	Director, Chief Executive Officer, issuer-wide
29	Thomist Capital Management, LP 13F CIK 1767809 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	922,217	—	-161,547	Jun 30, 2026	carried, not yet filed for the newest quarter
30	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	871,018	—	+670,558	Jun 30, 2026	carried, not yet filed for the newest quarter
31	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	861,189	—	+173,961	Jun 30, 2026	carried, not yet filed for the newest quarter
32	GENERAL AMERICAN INVESTORS CO INC 13F CIK 40417 · Registered fund · Jun 30, 2026 carried, not yet filed for the newest quarter	827,591	—	-80,000	Jun 30, 2026	carried, not yet filed for the newest quarter
33	General American Investors Company, Inc. Fund · Registered fund · Jun 30, 2026 General American Investors Company, Inc., not summed	827,591	—	—	Jun 30, 2026	General American Investors Company, Inc., not summed
34	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	822,783	—	+150,763	Jun 30, 2026	carried, not yet filed for the newest quarter
34.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	59,594	—	+3,729	Jun 30, 2026	Northern Funds, not summed
34.2	Small Cap Core Fund Fund S000001244 · Registered fund · Jun 30, 2026 Northern Funds, not summed	29,535	—	—	Jun 30, 2026	Northern Funds, not summed
35	Wolf Hill Capital Management, LP 13F CIK 1785988 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	755,059	—	-100,626	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Universal- Beteiligungs- und Servicegesellschaft mbH 13F CIK 2057170 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	732,882	—	+64,125	Jun 30, 2026	carried, not yet filed for the newest quarter
37	Orchard Capital Management, LLC 13F CIK 1858319 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	690,000	—	+8,255	Jun 30, 2026	carried, not yet filed for the newest quarter
38	JB CAPITAL PARTNERS LP 13F CIK 1138532 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	655,000	—	0	Jun 30, 2026	carried, not yet filed for the newest quarter
39	Ballast Asset Management, LP 13F CIK 1998389 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	626,195	—	-243,977	Jun 30, 2026	carried, not yet filed for the newest quarter
40	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	614,519	—	+21,571	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
41	Bastion Asset Management Inc. 13F CIK 1977794 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	604,639	—	-304,908	Jun 30, 2026	carried, not yet filed for the newest quarter
42	RBF Capital, LLC 13F CIK 1134621 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	521,005	—	0	Jun 30, 2026	carried, not yet filed for the newest quarter
43	1492 Capital Management LLC 13F CIK 1584087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	512,795	—	-6,654	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Walleye Capital LLC 13F CIK 1758720 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	507,500	—	-677,759	Jun 30, 2026	carried, not yet filed for the newest quarter
45	ENVESTNET ASSET MANAGEMENT INC 13F CIK 1407543 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	494,065	—	+2,856	Jun 30, 2026	carried, not yet filed for the newest quarter
46	Man Group plc 13F CIK 1637460 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	476,550	—	+476,550	Jun 30, 2026	carried, not yet filed for the newest quarter
47	Penn Capital Management Company, LLC 13F CIK 1158202 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	475,726	—	+475,726	Jun 30, 2026	carried, not yet filed for the newest quarter
48	TIFF MULTI-ASSET FUND Fund S000006387 · Registered fund · Jun 30, 2026 TIFF Multi-Asset Fund, not summed	466,469	—	+350,282	Jun 30, 2026	TIFF Multi-Asset Fund, not summed
49	DBA TRADING, LLC 13F CIK 2067608 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	460,000	—	0	Jun 30, 2026	carried, not yet filed for the newest quarter
50	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	456,817	—	-582,594	Jun 30, 2026	carried, not yet filed for the newest quarter

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 214 holders

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Key facts CIK 1639877 CUSIP G33856108 13F (30d) 24 filings 24 filers Visit website Investor relations