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Promethos Capital’s Iron Mountain IRM Stock Holding History

Promethos Capital’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
Q3 		– Sell
-50,782
Closed -$5.21M – 46
2025
Q2 		$5.21M Hold
50,782
– – 1.76% 20
2025
Q1 		$4.37M Sell
50,782
-1,340
-3% -$129K 1.6% 28
2024
Q4 		$5.48M Buy
52,122
+1,780
+4% +$209K 1.93% 20
2024
Q3 		$5.98M Hold
50,342
– – 2.13% 16
2024
Q2 		$4.51M Buy
50,342
+27,380
+119% +$2.22M 1.71% 23
2024
Q1 		$1.84M Hold
22,962
– – 1.08% 23
2023
Q4 		$1.61M Buy
+22,962
New +$1.44M 1.16% 21

Other funds holding IRM

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
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
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

Promethos Capital's IRM Position: Q3 2025 in Review

Promethos Capital sold out of Iron Mountain (IRM) in Q3 2025, closing a stake of 50,782 shares — an estimated $5.21M sold.

Promethos Capital first reported a position in IRM in Q4 2023 and held it in 7 quarters. The position peaked at $5.98M in Q3 2024. 1,015 funds tracked by Wall St. Rank hold IRM as of Q3 2025.

  • Promethos Capital reported no remaining Iron Mountain position as of Q3 2025 after selling out during the quarter.
  • Promethos Capital sold 50,782 Iron Mountain shares in Q3 2025, an estimated $5.21M.
  • Promethos Capital first reported a position in Iron Mountain in Q4 2023 and held it in 7 quarters.
  • Promethos Capital's Iron Mountain position peaked at $5.98M in Q3 2024.
  • 1,015 funds tracked by Wall St. Rank held Iron Mountain as of Q3 2025.

Based on Promethos Capital's 13F filing for Q3 2025, filed 14 Nov 2025.