Prelude Capital Management’s Iron Mountain IRM Stock Holding History

Prelude Capital 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
2018 Q4	–	Sell	-2,300	Closed	-$79K	–	1965
2018 Q3	$79K	Buy	+2,300	New	+$81.9K	﹤0.01%	1016

Other funds holding IRM

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return

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

Prelude Capital Management's IRM Position: Q1 2026 in Review

Prelude Capital Management sold out of Iron Mountain (IRM) in Q1 2026, closing a stake of 4,674 shares — an estimated $388K sold.

Prelude Capital Management first reported a position in IRM in Q3 2018 and held it in 6 quarters. The position peaked at $840K in Q3 2019. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

Prelude Capital Management reported no remaining Iron Mountain position as of Q1 2026 after selling out during the quarter.
Prelude Capital Management sold 4,674 Iron Mountain shares in Q1 2026, an estimated $388K.
Prelude Capital Management first reported a position in Iron Mountain in Q3 2018 and held it in 6 quarters.
Prelude Capital Management's Iron Mountain position peaked at $840K in Q3 2019.
1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on Prelude Capital Management's 13F filing for Q1 2026, filed 15 May 2026.