Capital World Investors

Position in MTRN — MATERION Corp

CIK 1422849 LOS ANGELES, CA

Position in MTRN

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$60,029,750

New position

Shares Held

415,000

first reported quarter

Ownership

2.00%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2026

1 quarter on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Mar 31, 2026

Capital World Investors holds $1,749,940,180 across 3 Other Industrial Metals & Mining names. MTRN ranks #2 (3.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VALE	Vale S.A.	104,839,174	$1,667,991,258
2	MTRN	MATERION Corp This page	415,000	$60,029,750
3	USAR	USA Rare Earth, Inc.	1,448,244	$21,919,172

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$60,029,750	415,000	—	Shares	Defined	2026-05-13
No filing history on record for this holder in this stock.