Atom Investors LP

SEC CIK: 0001738902
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

IRM holding history

Iron Mountain Inc in every 13F filed by Atom Investors LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

IRM overview All 13F holders of IRM Full Q2 2026 holdings

Shares (Q4 2021): 0; Sold out in Q4 2021
Value: $0
% of portfolio: 0.0%
Quarters held: 2; Since Q2 2021

Holdings of IRM by Atom Investors LP, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q4 2021	0	$0	0.0%	−17,454−100.0%	Sold out	Holders
Q3 2021	17,454	$758.0K	0.1%	+7,763+80.1%	Added	Holders
Q2 2021	9,691	$410.0K	0.1%	+9,691	New	Holders