Plato Investment Management’s Iron Mountain IRM Stock Holding History

Plato Investment Management’s Portfolio IRM Stock Details IRM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-1,661	Closed	-$175K	–	568
2024 Q4	$175K	Hold	1,661	–	–	0.01%	419
2024 Q3	$197K	Hold	1,661	–	–	0.02%	384
2024 Q2	$149K	Hold	1,661	–	–	0.01%	353
2024 Q1	$133K	Hold	1,661	–	–	0.01%	338
2023 Q4	$116K	Buy	+1,661	New	+$104K	0.14%	141

Other funds holding IRM

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Cohen & Steers New York $57.6B AUM 8.03% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Norges Bank Oslo, Norway $935B AUM

Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

Plato Investment Management's IRM Position: Q1 2025 in Review

Plato Investment Management sold out of Iron Mountain (IRM) in Q1 2025, closing a stake of 1,661 shares — an estimated $175K sold.

Plato Investment Management first reported a position in IRM in Q4 2023 and held it in 5 quarters. The position peaked at $197K in Q3 2024. 994 funds tracked by Wall St. Rank hold IRM as of Q1 2025.

Plato Investment Management reported no remaining Iron Mountain position as of Q1 2025 after selling out during the quarter.
Plato Investment Management sold 1,661 Iron Mountain shares in Q1 2025, an estimated $175K.
Plato Investment Management first reported a position in Iron Mountain in Q4 2023 and held it in 5 quarters.
Plato Investment Management's Iron Mountain position peaked at $197K in Q3 2024.
994 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2025.

Based on Plato Investment Management's 13F filing for Q1 2025, filed 20 May 2025.