MARTINGALE ASSET MANAGEMENT L P

Position in GSM — Ferroglobe PLC

CIK 936944 BOSTON, MA

Position in GSM

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

Position Value

$730,309

-$85,891 QoQ

Shares Held

229,657

+15.9% QoQ

Ownership

0.123%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#57

of 176 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 53% Shared 0% None 47%

Basic Materials · as of Jun 30, 2026

MARTINGALE ASSET MANAGEMENT L P holds $9,729,442 across 3 Other Industrial Metals & Mining names. GSM ranks #3 (7.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MTRN	MATERION Corp	21,817	$6,488,157
2	CMP	Compass Minerals International Inc	80,661	$2,510,976
3	GSM	Ferroglobe PLC This page	229,657	$730,309

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$730,309	229,657	+15.9%	Shares	Sole	2026-08-13
2026-03-31	$816,200	198,107	—	Shares	Sole	2026-05-13
No filing history on record for this holder in this stock.