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Brevan Howard Capital Management’s Iron Mountain IRM Stock Holding History

Brevan Howard 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
Q2 		$273K Sell
2,158
-1,114
-34% -$137K ﹤0.01% 1763
2026
Q1 		$334K Buy
+3,272
New +$325K ﹤0.01% 1552
2025
Q3 		– Sell
-61,532
Closed -$6.31M – 2114
2025
Q2 		$6.31M Buy
+61,532
New +$5.8M 0.04% 292
2023
Q3 		– Sell
-9,225
Closed -$524K – 414
2023
Q2 		$524K Buy
+9,225
New +$505K 0.01% 131

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 $3.38T AUM 44.17% 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

Brevan Howard Capital Management's IRM Position: Q2 2026 in Review

Brevan Howard Capital Management reduced its Iron Mountain (IRM) stake by 34% in Q2 2026, selling an estimated $137K and leaving 2,158 shares worth $273K. The position accounts for ﹤0.01% of the portfolio, ranked #1763.

Brevan Howard Capital Management first reported a position in IRM in Q2 2023 and has held it in 4 quarters since. The position peaked at $6.31M in Q2 2025. 1,174 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • Brevan Howard Capital Management held 2,158 shares of Iron Mountain worth $273K as of Q2 2026.
  • Brevan Howard Capital Management sold 1,114 Iron Mountain shares in Q2 2026, an estimated $137K.
  • Iron Mountain made up ﹤0.01% of Brevan Howard Capital Management's portfolio in Q2 2026, its #1763 holding.
  • Brevan Howard Capital Management first reported a position in Iron Mountain in Q2 2023 and has held it in 4 quarters since.
  • Brevan Howard Capital Management's Iron Mountain position peaked at $6.31M in Q2 2025.
  • 1,174 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on Brevan Howard Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.