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Ostrum Asset Management’s Iron Mountain IRM Stock Holding History

Ostrum Asset 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
Q2 		$952K Sell
7,535
-1,687
-18% -$207K 0.05% 229
2026
Q1 		$942K Buy
9,222
+8,322
+925% +$828K 0.05% 227
2025
Q4 		$74.7K Sell
900
-300
-25% -$28.1K ﹤0.01% 546
2025
Q3 		$122K Sell
1,200
-3,898
-76% -$376K 0.01% 529
2025
Q2 		$523K Sell
5,098
-146
-3% -$13.8K 0.02% 401
2025
Q1 		$451K Sell
5,244
-3,784
-42% -$365K 0.02% 425
2024
Q4 		$949K Sell
9,028
-373
-4% -$43.8K 0.08% 313
2024
Q3 		$1.12M Buy
9,401
+115
+1% +$12.3K 0.09% 295
2024
Q2 		$832K Sell
9,286
-18,238
-66% -$1.48M 0.07% 324
2024
Q1 		$2.21M Hold
27,524
– – 0.17% 208
2023
Q4 		$1.93M Buy
27,524
+3,237
+13% +$203K 0.17% 200
2023
Q3 		$1.44M Buy
24,287
+4,948
+26% +$302K 0.13% 235
2023
Q2 		$1.1M Buy
19,339
+74
+0.4% +$4.05K 0.09% 301
2023
Q1 		$1.02M Buy
+19,265
New +$1.01M 0.09% 306

Other funds holding IRM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $63.2B AUM 17.15% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

Ostrum Asset Management's IRM Position: Q2 2026 in Review

Ostrum Asset Management reduced its Iron Mountain (IRM) stake by 18% in Q2 2026, selling an estimated $207K and leaving 7,535 shares worth $952K. The position accounts for 0.05% of the portfolio, ranked #229.

Ostrum Asset Management first reported a position in IRM in Q1 2023 and has held it in 14 quarters since. The position peaked at $2.21M in Q1 2024. 1,170 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • Ostrum Asset Management held 7,535 shares of Iron Mountain worth $952K as of Q2 2026.
  • Ostrum Asset Management sold 1,687 Iron Mountain shares in Q2 2026, an estimated $207K.
  • Iron Mountain made up 0.05% of Ostrum Asset Management's portfolio in Q2 2026, its #229 holding.
  • Ostrum Asset Management first reported a position in Iron Mountain in Q1 2023 and has held it in 14 quarters since.
  • Ostrum Asset Management's Iron Mountain position peaked at $2.21M in Q1 2024.
  • 1,170 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on Ostrum Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.