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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
2026
Q1 		– Sell
-4,674
Closed -$388K – 1395
2025
Q4 		$388K Buy
+4,674
New +$437K 0.03% 650
2025
Q1 		– Sell
-7,471
Closed -$785K – 1365
2024
Q4 		$785K Buy
+7,471
New +$878K 0.05% 450
2020
Q1 		– Sell
-19,778
Closed -$630K – 1718
2019
Q4 		$630K Sell
19,778
-6,143
-24% -$201K 0.02% 500
2019
Q3 		$840K Hold
25,921
– – 0.04% 380
2019
Q2 		$811K Buy
+25,921
New +$849K 0.04% 396
2018
Q4 		– Sell
-2,018
Closed -$66.2K – 1966
2018
Q3 		$70K Buy
+2,018
New +$71.9K ﹤0.01% 1050

Other funds holding IRM

BlackRock
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
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $57.6B AUM 8.03% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return
Dimensional Fund Advisors
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.