HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

Pension

Position in ATKR — Atkore Inc.

CIK 1535845 TORONTO, A6

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Position in ATKR

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

Position Value

$11,456,870

+$4,045,992 QoQ

Shares Held

150,669

+19.8% QoQ

Ownership

0.446%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#45

of 324 holders

Holding Since

Dec 2020

10 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in ATKR Over Time

Shares Held

Position Value (USD)

Position in Electrical Equipment & Parts

Industrials · as of Jun 30, 2026

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND holds $240,451,888 across 10 Electrical Equipment & Parts names. ATKR ranks #7 (4.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	FPS	Forgent Power Solutions, Inc.	1,281,556	$71,587,718
2	HUBB	Hubbell Inc	117,304	$61,373,452
3	NVT	nVent Electric plc	160,878	$27,286,517
4	VRT	Vertiv Holdings Co	78,127	$26,158,482
5	ENS	EnerSys	100,295	$23,450,976
6	AMPX	Amprius Technologies, Inc.	1,248,700	$17,306,982
7	ATKR	Atkore Inc. This page	150,669	$11,456,870
8	POWL	Powell Industries Inc	4,362	$1,249,102

All Filings in ATKR

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10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$11,456,870	150,669	+19.8%	Shares	Sole	2026-08-13
2026-03-31	$7,410,878	125,800	+99.7%	Shares	Sole	2026-05-14
2025-12-31	$3,984,750	63,000	+84.8%	Shares	Sole	2026-02-13
2025-09-30	$2,139,434	34,100	-29.0%	Shares	Sole	2025-11-13
2024-12-31	$4,005,600	48,000	+122.2%	Shares	Sole	2025-02-14
2024-06-30	$2,914,488	21,600	-50.5%	Shares	Sole	2024-09-20
2021-09-30	$3,789,712	43,600	-46.8%	Shares	Sole	2021-11-10
2021-06-30	$5,814,900	81,900	+519.2%	Shares	Sole	2021-08-12
2021-03-31	$951,021	13,227	-79.3%	Shares	Sole	2021-05-13
2020-12-31	$2,631,040	64,000	—	Shares	Sole	2021-03-01
No filing history on record for this holder in this stock.