Aigen Investment Management, LP

Position in IRM — Iron Mountain Inc

CIK 1741224 NEW YORK, NY

Position in IRM

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$638,885

-$152,169 QoQ

Shares Held

6,255

-19.4% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.17%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2020

7 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Real Estate · as of Jun 30, 2026

Aigen Investment Management, LP holds $3,999,115 across 4 REIT - Specialty names.

#	Ticker	Company	Shares	Value (USD)
1	AMT	American Tower Corp /Ma/	10,162	$1,662,198
2	CCI	Crown Castle Inc.	19,619	$1,485,746
3	EQIX	Equinix Inc	552	$575,399
4	LAMR	Lamar Advertising Co/New	1,768	$275,772

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$638,885	6,255	-19.4%	Shares	Sole	2026-05-15
2025-09-30	$791,054	7,760	-66.4%	Shares	Sole	2025-11-14
2025-03-31	$1,987,868	23,104	+164.2%	Shares	Sole	2025-05-12
2023-09-30	$519,830	8,744	-54.8%	Shares	Sole	2023-11-13
2022-06-30	$941,372	19,334	+78.0%	Shares	Sole	2022-08-02
2021-06-30	$459,595	10,860	+31.6%	Shares	Sole	2021-08-10
2020-06-30	$215,325	8,250	—	Shares	Sole	2020-08-10
No filing history on record for this holder in this stock.