TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY

Pension

Position in MTRN — MATERION Corp

CIK 714142 FRANKFORT, KY

Back to MTRN Full portfolio

Position in MTRN

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$2,634,874

+$1,883,563 QoQ

Shares Held

8,860

+70.6% QoQ

Ownership

0.043%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#126

of 402 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in MTRN Over Time

Shares Held

Position Value (USD)

Position in Other Industrial Metals & Mining

Basic Materials · as of Jun 30, 2026

TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY holds $109,772,731 across 4 Other Industrial Metals & Mining names. MTRN ranks #3 (2.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	RIO	Rio Tinto PLC	554,020	$52,593,116
2	VALE	Vale S.A.	3,470,670	$52,198,875
3	MTRN	MATERION Corp This page	8,860	$2,634,874
4	MP	MP Materials Corp. / DE	41,883	$2,345,866

All Filings in MTRN

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,634,874	8,860	+70.6%	Shares	Sole	2026-08-12
2026-03-31	$751,311	5,194	0.0%	Shares	Sole	2026-05-04
2025-12-31	$645,717	5,194	-12.2%	Shares	Sole	2026-01-29
2025-09-30	$714,349	5,913	-2.6%	Shares	Sole	2025-11-12
2025-06-30	$481,695	6,069	-6.5%	Shares	Sole	2025-08-07
2025-03-31	$529,583	6,490	0.0%	Shares	Sole	2025-05-05
2024-12-31	$641,730	6,490	0.0%	Shares	Sole	2025-02-13
2024-09-30	$725,970	6,490	0.0%	Shares	Sole	2024-11-18
2024-06-30	$701,762	6,490	0.0%	Shares	Sole	2024-08-26
2024-03-31	$855,056	6,490	0.0%	Shares	Sole	2024-05-28
2023-12-31	$844,542	6,490	0.0%	Shares	Sole	2024-02-26
2023-09-30	$661,395	6,490	0.0%	Shares	Sole	2023-12-13
2023-06-30	$741,157	6,490	+5.9%	Shares	Sole	2023-08-21
2023-03-31	$711,196	6,131	0.0%	Shares	Sole	2023-05-11
2022-12-31	$536,523	6,131	0.0%	Shares	Sole	2023-02-22
2022-09-30	$490,480	6,131	+6.4%	Shares	Sole	2022-11-22
2022-03-31	$493,948	5,761	0.0%	Shares	Sole	2022-06-07
2021-12-31	$529,666	5,761	0.0%	Shares	Sole	2022-02-08
2021-09-30	$395,435	5,761	0.0%	Shares	Sole	2021-11-10
2021-06-30	$434,091	5,761	0.0%	Shares	Sole	2021-07-28
2021-03-31	$381,608	5,761	0.0%	Shares	Sole	2021-05-19
2020-12-31	$367,090	5,761	0.0%	Shares	Sole	2021-03-08
2020-09-30	$299,744	5,761	0.0%	Shares	Sole	2020-12-02
2020-06-30	$354,243	5,761	0.0%	Shares	Sole	2020-09-04
2020-03-31	$201,692	5,761	—	Shares	Sole	2020-07-16
No filing history on record for this holder in this stock.