Form 13-F position report

FERROGLOBE PLC

Reported by Boston Partners

GSM CUSIP G33856108 Manager CIK 0001386060

Reported 351,435 shares, down 91,007 (20.6%) from the prior quarter.

Reported value -29.5%; share count -20.6% vs. the prior quarter.

Reduced
% of reported 13F value < 0.01% This manager · Q1 2026
Shares 351,435 Quarter-end amount reported
Reported value $1,447,910 Fair value at quarter end
Consecutive quarters held 18 Through Q1 2026

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2021-12-31 5079000
2022-03-31 22804000
2022-06-30 21609000
2022-09-30 17289000
2022-12-31 14695690
2023-03-31 19252820
2023-06-30 19172270
2023-09-30 22112780
2023-12-31 984770
2024-03-31 516740
2024-06-30 615980
2024-09-30 925820
2024-12-31 814640
2025-03-31 5743390
2025-06-30 1526890
2025-09-30 2044230
2025-12-31 2052930
2026-03-31 1447910
2026-06-30 1295540

Quarterly position history

How this manager's reported quarter-end position changed over time.

19 quarters
Quarterly reported position history for FERROGLOBE PLC held by Boston Partners.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q2 2026 Added 407,404 +55,969 (15.9%) < 0.01% $1,295,540 2026-08-04
Q1 2026 Reduced 351,435 -91,007 (-20.6%) < 0.01% $1,447,910 2026-05-11
Q4 2025 Reduced 442,442 -6,839 (-1.5%) < 0.01% $2,052,930 2026-02-13
Q3 2025 Added 449,281 +33,236 (8.0%) < 0.01% $2,044,230 2025-11-13
Q2 2025 Reduced 416,045 -1,132,107 (-73.1%) < 0.01% $1,526,890 2025-08-07
Q1 2025 Added 1,548,152 +1,333,772 (622.2%) < 0.01% $5,743,390 2025-05-13
Q4 2024 Added 214,380 +14,849 (7.4%) < 0.01% $814,640 2025-02-11
Q3 2024 Added 199,531 +84,609 (73.6%) < 0.01% $925,820 2024-11-12
Q2 2024 Added 114,922 +11,159 (10.8%) < 0.01% $615,980 2024-08-14
Q1 2024 Reduced 103,763 -47,508 (-31.4%) < 0.01% $516,740 2024-05-13
Q4 2023 Reduced 151,271 -4,101,187 (-96.4%) < 0.01% $984,770 2024-02-07
Q3 2023 Added 4,252,458 +233,114 (5.8%) 0.03% $22,112,780 2023-11-08
Q2 2023 Added 4,019,344 +122,012 (3.1%) 0.03% $19,172,270 2023-08-10
Q1 2023 Added 3,897,332 +80,268 (2.1%) 0.03% $19,252,820 2023-05-09
Q4 2022 Added 3,817,064 +542,752 (16.6%) 0.02% $14,695,690 2023-02-08
Q3 2022 Reduced 3,274,312 -363,412 (-10.0%) 0.03% $17,289,000 2022-11-09
Q2 2022 Added 3,637,724 +676,174 (22.8%) 0.03% $21,609,000 2022-08-10
Q1 2022 Added 2,961,550 +2,143,713 (262.1%) 0.03% $22,804,000 2022-05-10
Q4 2021 New 817,837 +817,837 (0.0%) < 0.01% $5,079,000 2022-02-04
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

196 managers reported FERROGLOBE PLC for Q1 2026.

Managers reporting FERROGLOBE PLC in Q1 2026.
Manager Activity Shares Change % of reported 13F Reported value Tenure
COOPER CREEK PARTNERS MANAGEMENT LLC Reduced 13,715,302 -1,206,644 1.93% $56,507,000 21 qtrs
Hosking Partners LLP Added 11,561,188 +345,572 1.71% $47,632,095 39 qtrs
BlackRock Inc Reduced 6,652,203 -216,187 < 0.01% $27,407,076 7 qtrs
BARROW HANLEY MEWHINNEY & STRAUSS LLC Reduced 6,075,049 -389,823 0.08% $25,029,202 40 qtrs
DONALD SMITH & CO INC Added 5,434,704 +75,631 0.4% $22,390,980 7 qtrs
Old West Investment Management LLC Added 3,926,619 +127,838 1.75% $16,177,671 9 qtrs
GRIZZLYROCK CAPITAL LLC Reduced 3,628,840 -446,902 11.84% $14,950,821 10 qtrs
RENAISSANCE TECHNOLOGIES LLC Reduced 2,768,235 -103,900 0.02% $11,405,128 31 qtrs
ROYCE & ASSOCIATES LP Reduced 2,348,451 -115,000 0.1% $9,675,618 42 qtrs
AMERIPRISE FINANCIAL INC Reduced 2,216,942 -10,642 < 0.01% $9,133,803 42 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
March 31, 2026
Filed
May 11, 2026
Filing type
13F-HR
Position type
SHS

Voting authority reported

Sole
351,435
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.