Kemnay Advisory Services Inc.

Position in MTRN — MATERION Corp

CIK 1555283 New York, NY

Position in MTRN

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$93,975

+$70,108 QoQ

Shares Held

316

+91.5% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#313

of 400 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

Kemnay Advisory Services Inc. holds $211,555 across 3 Other Industrial Metals & Mining names. MTRN ranks #1 (44.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MTRN	MATERION Corp This page	316	$93,975
2	CMP	Compass Minerals International Inc	2,704	$84,175
3	USAR	USA Rare Earth, Inc.	1,548	$33,405

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$93,975	316	+91.5%	Shares	Sole	2026-08-14
2026-03-31	$23,867	165	—	Shares	Sole	2026-05-15
No filing history on record for this holder in this stock.