GSM · Ferroglobe PLC · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 177 13F filersWho Holds GSM
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 176 filers, like-for-like change +2.1%; actively managed books 0.0%; index-like books +16.3%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 57.5% | 93 | -0.1% |
| Exempt adviser | 1.2% | 4 | +930.4% |
| Adviser | 15.5% | 5 | +0.5% |
| Bank | 4.2% | 14 | -7.3% |
| Insurer | 0.0% | 1 | +4.8% |
| Broker-dealer | 0.2% | 2 | -11.5% |
| Registered fund | 0.8% | 1 | -8.8% |
| Benefit plan | 0.3% | 4 | +5.6% |
| Non-US | 0.2% | 5 | +6.1% |
| Holding company | 8.8% | 6 | +15.2% |
| Unknown | 11.4% | 41 | +1.1% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 14.7% | 19 | +16.3% |
| Systematic-like | 5.3% | 15 | +77.2% |
| Concentrated | 8.0% | 22 | -9.5% |
| Diversified active | 71.9% | 120 | -2.1% |
| Unknown | 0.0% | 0 | -100.0% |
| Not measured | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 38.4% | 88 | -4.8% |
| Medium turnover | 36.0% | 50 | +7.7% |
| High turnover | 24.2% | 32 | +11.0% |
| Unknown | 1.3% | 6 | -44.1% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 4.2% | 19 | -30.2% |
| Medium horizon | 19.5% | 31 | +33.6% |
| Long horizon | 54.5% | 110 | -3.0% |
| Unknown | 21.8% | 16 | +2.7% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 16.4% | 32 | +4.5% |
| $1B to $10B | 38.3% | 46 | +8.7% |
| $10B to $100B | 17.9% | 45 | -8.8% |
| $100B or more | 27.4% | 53 | -0.1% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 1.7% | 32 | -0.1% |
| Pooled investment vehicles | 18.4% | 19 | +1.3% |
| Registered funds and BDCs | 10.7% | 14 | -16.4% |
| Pension and profit sharing plans | 9.7% | 3 | -11.5% |
| Insurance companies | 0.1% | 3 | +10.1% |
| Governments and sovereign funds | 1.3% | 6 | +389.2% |
| Other investment advisers | 0.0% | 3 | -18.7% |
| Diversified | 15.5% | 13 | +15.5% |
| Unknown | 42.5% | 83 | +5.0% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 29.7% | 30 | +23.7% |
| Private equity funds | 0.1% | 5 | +49.4% |
| Venture capital funds | 0.0% | 1 | -82.6% |
| Real estate funds | 0.0% | 2 | +216.8% |
| Other private funds | 20.3% | 16 | -18.5% |
| Mixed private funds | 0.3% | 2 | +16.4% |
| Private funds, type not stated | 0.2% | 1 | -3.8% |
| No private funds | 8.0% | 40 | +16.0% |
| Securitized asset funds | 0.0% | 0 | -100.0% |
| Unknown | 41.4% | 79 | +2.4% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 86.0% | 153 | +1.9% |
| Outside the US | 14.0% | 23 | +2.7% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 1 holder with no observed 2026-06-30 13F.
Conviction and Crowding
176 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 67.4% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies GSM's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | RYZ Ryerson Holding Corp | 4 |
| 2 | NOA North American Construction Group Ltd. | 3 |
| 3 | CNR Core Natural Resources, Inc. | 6 |
| 4 | MTUS Metallus Inc. | 3 |
| 5 | AMR Alpha Metallurgical Resources, Inc. | 4 |
| 6 | CBT Cabot Corp | 4 |
| 7 | METC Ramaco Resources, Inc. | 3 |
| 8 | TDW Tidewater Inc | 5 |
| 9 | DRVN Driven Brands Holdings Inc. | 3 |
| 10 | JBI Janus International Group, Inc. | 3 |
Shareholder Targets
13F filers that own its peers but not GSM, quarter ended Jun 30, 2026Found through its holder-overlap peers: RYZ, NOA, CNR, MTUS, AMR, CBT, METC, TDW, DRVN, JBI, ORN, PRIM, AIOT, CC, ALM, NOV, GEO, DCH, OLN, CE. 1,319 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like | $2,148,120,804 19 held | NOV, PRIM, CE |
| 2 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $818,641,449 5 held | PRIM, CBT, TDW |
| 3 | PZENA INVESTMENT MANAGEMENT LLC Registered adviser, Diversified active | $751,880,256 2 held | NOV, OLN |
| 4 | Dodge & Cox Registered adviser, Diversified active | $702,982,764 1 held | CE |
| 5 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Registered adviser, Diversified active | $600,002,288 5 held | OLN, NOV, JBI |
| 6 | First Eagle Investment Management, LLC Registered adviser, Diversified active | $594,162,186 4 held | NOV, CBT, METC |
| 7 | NORGES BANK Non-US, Index-like | $594,021,256 6 held | CE, CBT, PRIM |
| 8 | FULLER & THALER ASSET MANAGEMENT, INC. Registered adviser, Diversified active | $429,094,656 3 held | CBT, CE, OLN |
| 9 | VAN ECK ASSOCIATES CORP Registered adviser, Index-like | $409,578,281 8 held | ALM, NOV, CNR |
| 10 | EARNEST PARTNERS LLC Registered adviser, Diversified active | $375,204,431 2 held | CBT, NOV |
Fund Ownership of GSM by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 0.67% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.13% | 234,877 |
| Index ETFs | 0.54% | 1,011,152 |
| Active ETFs | 0.55% | 1,019,388 |
| Active funds | 1.00% | 1,865,177 |
| Unclassified | 0.71% | 1,335,736 |
| All registered funds | 2.93% | 5,466,330 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid COOPER CREEK PARTNERS MANAGEMENT LLC Adviser | $43,296,660 | 12.69% | 13,615,302 | Shares | 2026-08-14 | |
| Mid Hosking Partners LLP Registered adviser | $33,290,322 | 9.76% | 8,374,924 | Shares | 2026-10-21 | |
| Mid DONALD SMITH & CO., INC. Registered adviser | $25,843,138 | 7.57% | 8,126,773 | Shares | 2026-08-11 | |
| Mega BlackRock, Inc. Holding company | $24,177,698 | 7.08% | 7,603,051 | Shares | 2026-08-07 | |
| Large BARROW HANLEY MEWHINNEY & STRAUSS LLC Registered adviser | $16,262,277 | 4.77% | 5,113,924 | Shares | 2026-08-12 | |
| Small Old West Investment Management, LLC Registered adviser | $13,360,121 | 3.91% | 4,201,296 | Shares | 2026-08-06 | |
| Small GRIZZLYROCK CAPITAL, LLC Registered adviser | $11,339,749 | 3.32% | 3,565,959 | Shares | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $8,391,177 | 2.46% | 2,638,735 | Shares | 2026-08-13 | |
| Mid CenterBook Partners LP Registered adviser | $8,162,303 | 2.39% | 2,566,762 | Shares | 2026-08-11 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $7,953,535 | 2.33% | 2,501,112 | Shares | 2026-08-14 | |
| Mega STATE STREET CORP Bank | $6,965,770 | 2.04% | 2,190,494 | Shares | 2026-09-22 | |
| Small ARDSLEY ADVISORY PARTNERS LP Registered adviser | $6,948,300 | 2.04% | 2,185,000 | Shares | 2026-07-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $6,781,186 | 1.99% | 2,132,449 | Shares | 2026-08-11 | |
| Mid MASTERS CAPITAL MANAGEMENT LLC Registered adviser | $6,360,000 | 1.86% | 2,000,000 | Shares | 2026-08-14 | |
| Large ROYCE & ASSOCIATES LP Registered adviser | $6,083,130 | 1.78% | 1,912,934 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $5,657,868 | 1.66% | 1,779,204 | Shares | 2026-08-12 | |
| Large GENDELL JEFFREY L | $5,220,529 | 1.53% | 1,641,676 | Shares | 2026-08-14 | |
| Large JACOBS LEVY EQUITY MANAGEMENT, INC Registered adviser | $4,748,614 | 1.39% | 1,493,275 | Shares | 2026-08-14 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $4,682,317 | 1.37% | 1,472,427 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $3,932,769 | 1.15% | 1,236,720 | Shares | 2026-08-14 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $3,659,896 | 1.07% | 1,150,911 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $3,599,177 | 1.05% | 1,131,818 | Shares | 2026-08-06 | |
| Mega AMERICAN CENTURY COMPANIES INC | $3,386,248 | 0.99% | 1,064,858 | Shares | 2026-08-12 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $3,286,776 | 0.96% | 1,033,578 | Shares | 2026-08-14 | |
| Large Empowered Funds, LLC Registered adviser | $2,977,519 | 0.87% | 936,327 | Shares | 2026-08-17 | |
| Small Thomist Capital Management, LP | $2,932,650 | 0.86% | 922,217 | Shares | 2026-08-14 | |
| Mega D. E. Shaw & Co., Inc. | $2,769,836 | 0.81% | 871,018 | Shares | 2026-08-14 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $2,738,581 | 0.80% | 861,189 | Shares | 2026-08-13 | |
| Mid GENERAL AMERICAN INVESTORS CO INC Registered fund | $2,631,739 | 0.77% | 827,591 | Shares | 2026-07-31 | |
| Mega NORTHERN TRUST CORP Bank | $2,616,447 | 0.77% | 822,783 | Shares | 2026-08-13 | |
| Mid Wolf Hill Capital Management, LP Registered adviser | $2,401,087 | 0.70% | 755,059 | Shares | 2026-08-13 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $2,330,564 | 0.68% | 732,882 | Shares | 2026-08-06 | |
| Small Orchard Capital Management, LLC Registered adviser | $2,194,200 | 0.64% | 690,000 | Shares | 2026-08-12 | |
| Small JB CAPITAL PARTNERS LP | $2,082,900 | 0.61% | 655,000 | Shares | 2026-08-11 | |
| Small Ballast Asset Management, LP | $1,991,300 | 0.58% | 626,195 | Shares | 2026-08-13 | |
| Small Bastion Asset Management Inc. | $1,922,752 | 0.56% | 604,639 | Shares | 2026-08-10 | |
| Mid RBF Capital, LLC | $1,656,795 | 0.49% | 521,005 | Shares | 2026-08-14 | |
| Small 1492 Capital Management LLC Registered adviser | $1,630,688 | 0.48% | 512,795 | Shares | 2026-08-11 | |
| Large Walleye Capital LLC Registered adviser | $1,613,850 | 0.47% | 507,500 | Shares | 2026-08-03 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $1,571,126 | 0.46% | 494,065 | Shares | 2026-09-23 | |
| Large Man Group plc | $1,515,429 | 0.44% | 476,550 | Shares | 2026-08-14 | |
| Mid Penn Capital Management Company, LLC Registered adviser | $1,512,808 | 0.44% | 475,726 | Shares | 2026-07-30 | |
| Mid Y-Intercept (Hong Kong) Ltd Exempt adviser | $1,490,613 | 0.44% | 374,997 | Shares | 2026-10-16 | |
| Small DBA TRADING, LLC | $1,462,800 | 0.43% | 460,000 | Shares | 2026-07-20 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $1,452,678 | 0.43% | 456,817 | Shares | 2026-08-14 | |
| Mega MORGAN STANLEY Holding company | $1,375,132 | 0.40% | 432,432 | Shares | 2026-08-13 | |
| Large Jump Financial, LLC | $1,359,080 | 0.40% | 427,384 | Shares | 2026-08-13 | |
| Mega Boston Partners Registered adviser | $1,295,544 | 0.38% | 407,404 | Shares | 2026-08-04 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $1,129,405 | 0.33% | 355,159 | Shares | 2026-08-13 | |
| Mid Pekin Hardy Strauss, Inc. Registered adviser | $1,002,972 | 0.29% | 315,400 | Shares | 2026-07-30 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $930,277 | 0.27% | 292,540 | Shares | 2026-08-13 | |
| Mega Bank of New York Mellon Corp Bank | $911,215 | 0.27% | 286,546 | Shares | 2026-08-06 | |
| Mega BANK OF MONTREAL /CAN/ Bank | $894,066 | 0.26% | 281,153 | Shares | 2026-08-12 | |
| Small Integrated Quantitative Investments LLC Registered adviser | $887,515 | 0.26% | 279,093 | Shares | 2026-08-14 | |
| Mega SEI INVESTMENTS CO Holding company | $872,963 | 0.26% | 274,517 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $872,682 | 0.26% | 274,429 | Shares | 2026-08-13 | |
| Mid DEPRINCE RACE & ZOLLO INC Registered adviser | $800,898 | 0.23% | 201,484 | Shares | 2026-10-13 | |
| Mega Invesco Ltd. Adviser | $800,377 | 0.23% | 251,691 | Shares | 2026-08-14 | |
| Mid MARTINGALE ASSET MANAGEMENT L P Registered adviser | $730,309 | 0.21% | 229,657 | Shares | 2026-08-13 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $641,088 | 0.19% | 201,600 | Put | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $640,550 | 0.19% | 201,431 | Shares | 2026-08-07 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $632,963 | 0.19% | 199,045 | Shares | 2026-08-14 | |
| Mid Legato Capital Management LLC Registered adviser | $627,518 | 0.18% | 197,333 | Shares | 2026-08-06 | |
| Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Registered adviser | $616,350 | 0.18% | 193,821 | Shares | 2026-08-03 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $585,011 | 0.17% | 183,966 | Shares | 2026-09-02 | |
| Large PANAGORA ASSET MANAGEMENT INC Registered adviser | $574,540 | 0.17% | 180,673 | Shares | 2026-08-06 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $573,703 | 0.17% | 180,410 | Shares | 2026-08-14 | |
| Micro West Tower Group, LLC Registered adviser | $560,347 | 0.16% | 140,968 | Shares | 2026-10-14 | |
| Mega Nuveen, LLC | $554,823 | 0.16% | 174,473 | Shares | 2026-08-11 | |
| Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Benefit plan | $544,346 | 0.16% | 171,178 | Shares | 2026-08-17 | |
| Mega JANE STREET GROUP, LLC | $509,118 | 0.15% | 160,100 | Put | 2026-08-14 | |
| Mid Unison Advisors LLC | $498,156 | 0.15% | 156,653 | Shares | 2026-07-22 | |
| Mid XTX Topco Ltd | $491,198 | 0.14% | 154,465 | Shares | 2026-08-14 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $475,629 | 0.14% | 149,569 | Shares | 2026-08-12 | |
| Mega Legal & General Group Plc | $454,431 | 0.13% | 142,903 | Shares | 2026-08-14 | |
| Small Diametric Capital, LP | $389,791 | 0.11% | 122,576 | Shares | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO Bank | $377,146 | 0.11% | 118,600 | Shares | 2026-08-12 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $373,650 | 0.11% | 117,500 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $361,248 | 0.11% | 113,600 | Put | 2026-09-02 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $351,700 | 0.10% | 110,598 | Shares | 2026-08-14 | |
| Mid Cannell & Spears LLC Registered adviser | $349,800 | 0.10% | 110,000 | Shares | 2026-08-11 | |
| Mega DEUTSCHE BANK AG\ Non-US | $339,057 | 0.10% | 106,622 | Shares | 2026-08-07 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $325,186 | 0.10% | 102,260 | Shares | 2026-08-14 | |
| Large Caption Management, LLC Registered adviser | $318,000 | 0.09% | 100,000 | Put | 2026-08-14 | |
| Large STRS OHIO Benefit plan | $316,728 | 0.09% | 99,600 | Shares | 2026-07-30 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $306,173 | 0.09% | 96,281 | Shares | 2026-08-14 | |
| Large Caption Management, LLC Registered adviser | $265,030 | 0.08% | 83,343 | Shares | 2026-08-14 | |
| Small Counterpoint Mutual Funds LLC Registered adviser | $256,447 | 0.08% | 64,515 | Shares | 2026-10-16 | |
| Large IMC-Chicago, LLC | $250,746 | 0.07% | 78,851 | Shares | 2026-08-06 | |
| Small Legacy Capital Group California, Inc. Registered adviser | $249,833 | 0.07% | 78,564 | Shares | 2026-07-29 | |
| Large Point72 Asset Management, L.P. Registered adviser | $248,240 | 0.07% | 78,063 | Shares | 2026-08-14 | |
| Mega MARSHALL WACE, LLP Exempt adviser | $247,416 | 0.07% | 77,804 | Shares | 2026-08-13 | |
| Large LOS ANGELES CAPITAL MANAGEMENT LLC Registered adviser | $238,674 | 0.07% | 75,055 | Shares | 2026-08-13 | |
| Large EXCHANGE TRADED CONCEPTS, LLC Registered adviser | $223,166 | 0.07% | 70,178 | Shares | 2026-08-11 | |
| Small State of Wyoming | $215,759 | 0.06% | 67,849 | Shares | 2026-08-06 | |
| Large MetLife Investment Management, LLC Registered adviser | $213,406 | 0.06% | 67,109 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $208,608 | 0.06% | 65,600 | Call | 2026-09-02 | |
| Mega CITIGROUP INC Bank | $205,437 | 0.06% | 64,603 | Shares | 2026-08-03 | |
| Small Central Pacific Bank - Trust Division | $194,945 | 0.06% | 49,043 | Shares | 2026-10-06 | |
| Mega HSBC HOLDINGS PLC | $192,135 | 0.06% | 60,420 | Shares | 2026-08-14 |
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