HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

Pension

Position in MTRN — MATERION Corp

CIK 1535845 TORONTO, A6

Back to MTRN Full portfolio

Position in MTRN

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$2,125,487

-$907,175 QoQ

Shares Held

14,694

-39.8% QoQ

Ownership

0.071%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

5 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in MTRN Over Time

Shares Held

Position Value (USD)

Position in Other Industrial Metals & Mining

Basic Materials · as of Mar 31, 2026

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND holds $48,894,716 across 3 Other Industrial Metals & Mining names. MTRN ranks #2 (4.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TECK	Teck Resources Ltd	885,158	$45,806,926
2	MTRN	MATERION Corp This page	14,694	$2,125,487
3	SKE	Skeena Resources Ltd	32,379	$962,303

All Filings in MTRN

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5 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,125,487	14,694	-39.8%	Shares	Sole	2026-05-14
2025-12-31	$3,032,662	24,394	+32.6%	Shares	Sole	2026-02-13
2020-12-31	$1,172,448	18,400	-52.3%	Shares	Sole	2021-03-01
2020-09-30	$2,008,358	38,600	-59.8%	Shares	Sole	2021-03-01
2020-03-31	$3,364,461	96,100	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.