Ferroglobe PLC
US ˙ NasdaqCM ˙ GB00BYW6GV68

SecurityGSM / Ferroglobe PLC
InstitutionSei Investments Co
Latest Disclosed Ownership382,991 shares
Latest Disclosed Value $ 1,777,079
Sei Investments Co reports 217.73% increase in ownership of GSM / Ferroglobe PLC

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 382,991 shares of Ferroglobe PLC (US:GSM) valued at $1,777,078 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 120,540 shares of Ferroglobe PLC. This represents a change in shares of 217.73% during the quarter. The current value of the position is $1,478,345 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F FERROGLOBE SHS G33856108 382,991 262,451 217.73 1,777 224.27 0.0018
2025-11-13 2025-09-30 13F FERROGLOBE SHS G33856108 120,540 -2,545 -2.07 548 21.51 0.0006
2025-08-14 2025-06-30 13F FERROGLOBE SHS G33856108 123,085 16,775 15.78 452 14.47 0.0005
2025-05-14 2025-03-31 13F/A-1 FERROGLOBE SHS G33856108 106,310 36,431 52.13 394 48.68 0.0005
2025-05-13 2025-03-31 13F FERROGLOBE SHS G33856108 69,879 0 266 0.0003
2025-02-11 2024-12-31 13F FERROGLOBE SHS G33856108 69,879 -1,379 -1.94 266 -19.70 0.0003
2024-11-12 2024-09-30 13F FERROGLOBE SHS G33856108 71,258 0 0.00 331 -13.39 0.0004
2024-08-13 2024-06-30 13F FERROGLOBE SHS G33856108 71,258 71,258 382 0.0005
2023-08-11 2023-06-30 13F FERROGLOBE SHS G33856108 0 -21,662 -100.00 0 -100.00
2023-05-12 2023-03-31 13F FERROGLOBE SHS G33856108 21,662 -17,044 -44.03 107 -28.19 0.0002
2023-02-10 2022-12-31 13F FERROGLOBE SHS G33856108 38,706 38,706 149 0.0003
2019-11-12 2019-09-30 13F FERROGLOBE SHS G33856108 0 -25,679 -100.00 0 -100.00
2019-08-14 2019-06-30 13F FERROGLOBE SHS G33856108 25,679 0 0.00 44 -16.98 0.0001
2019-05-15 2019-03-31 13F FERROGLOBE S3 G33856108 25,679 -23,411 -47.69 53 -86.78 0.0002
2019-02-13 2018-12-31 13F FERROGLOBE SHS G33856108 49,090 0 0.00 401 0.00 0.0014
2018-11-08 2018-09-30 13F FERROGLOBE SHS G33856108 49,090 0 0.00 401 -4.75 0.0015
2018-08-03 2018-06-30 13F FERROGLOBE SHS G33856108 49,090 -37,385 -43.23 421 -54.63 0.0014
2018-05-11 2018-03-31 13F FERROGLOBE SHS G33856108 86,475 33,976 64.72 928 9.05 0.0036
2018-02-08 2017-12-31 13F FERROGLOBE SHS G33856108 52,499 17,167 48.59 851 83.01 0.0030
2017-11-06 2017-09-30 13F FERROGLOBE SHS G33856108 35,332 35,216 30,358.62 465 46,400.00 0.0017
2017-07-31 2017-06-30 13F FERROGLOBE SHS G33856108 116 0 0.00 1 0.00 0.0000
2017-05-05 2017-03-31 13F FERROGLOBE SHS G33856108 116 0 0.00 1 0.00 0.0000
2017-02-02 2016-12-31 13F FERROGLOBE SHS G33856108 116 -2,622 -95.76 1 -96.00 0.0000
2016-11-04 2016-09-30 13F FERROGLOBE SHS G33856108 2,738 -59 -2.11 25 4.17 0.0001
2016-08-11 2016-06-30 13F FERROGLOBE SHS G33856108 2,797 2,797 24 0.0001
2016-05-10 2016-03-31 13F/A-1 DIREXION SHS ETF TR COM 37954N206 0 0 0 0.0000
2016-02-03 2015-12-31 13F DIREXION SHS ETF TR COM 37954N206 0 -45,804 -100.00 0 -100.00
2015-11-02 2015-09-30 13F/A-1 GLOBE SPECIALTY METALS COM 37954N206 45,804 32,516 244.70 556 136.60 0.0051
2015-10-30 2015-09-30 13F DIREXION SHS ETF TR COM 37954N206 45,804 556
2015-08-07 2015-06-30 13F/A-1 GLOBE SPECIALTY METALS COM 37954N206 13,288 -3,602 -21.33 235 -26.56 0.0021
2015-08-04 2015-06-30 13F GLOBE SPECIALTY METALS COM 37954N206 13,288 13,288 235 0.0021
2015-05-14 2015-03-31 13F/A-1 GLOBE SPECIALTY METALS COM 37954N206 16,890 -1,750 -9.39 320 -0.31 0.0028
2015-05-01 2015-03-31 13F GLOBE SPECIALTY METALS COM 37954N206 16,890 320
2015-02-10 2014-12-31 13F GLOBE SPECIALTY METALS COM 37954N206 18,640 18,640 321 0.0028
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.