ONTARIO TEACHERS PENSION PLAN BOARD

Pension

Position in IRM — Iron Mountain Inc

CIK 937567 Toronto, A6

Back to IRM Full portfolio

Position in IRM

as of Jun 30, 2026 · filed Aug 7, 2026 Compact

Position Value

+$0 QoQ

Shares Held

Ownership

0.000%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

10 quarters on record

Common Shares in IRM Over Time

Shares Held

Position Value (USD)

Derivatives in IRM

reported options exposure · as of Jun 30, 2026

CallValue

CallShares

PutValue

$6,100,773

PutShares

48,300

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in REIT - Specialty

Real Estate · as of Jun 30, 2026

ONTARIO TEACHERS PENSION PLAN BOARD holds $418,204,300 across 2 REIT - Specialty names.

#	Ticker	Company	Shares	Value (USD)	Open
1	AMT	American Tower Corp /Ma/	1,784,357	$291,867,274
2	CCI	Crown Castle Inc.	1,668,256	$126,337,026

All Filings in IRM

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10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$6,100,773	48,300	0.0%	Put	Sole	2026-08-07
2026-03-31	$4,933,362	48,300	—	Put	Sole	2026-05-11
2024-12-31	$434,209	4,131	-47.5%	Shares	Sole	2026-02-13
2024-09-30	$935,548	7,873	-75.0%	Shares	Sole	2026-02-13
2021-09-30	$1,367,632	31,476	-8.1%	Shares	Sole	2021-11-12
2021-06-30	$1,450,221	34,268	+52.2%	Shares	Sole	2021-08-13
2021-03-31	$833,243	22,514	-32.5%	Shares	Sole	2021-05-14
2020-12-31	$983,099	33,348	+133.3%	Shares	Sole	2021-02-12
2020-06-30	$373,047	14,293	-44.0%	Shares	Sole	2020-08-11
2020-03-31	$607,185	25,512	—	Shares	Sole	2020-05-08
No filing history on record for this holder in this stock.