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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
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 $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

Brevan Howard Capital Management's IRM Position: Q1 2026 in Review

Brevan Howard Capital Management opened a new position in Iron Mountain (IRM) in Q1 2026: 3,272 shares worth $334K. The stake represents ﹤0.01% of the portfolio and ranks #1552 among its holdings. This is a return to the name: Brevan Howard Capital Management previously reported a position in IRM as recently as Q2 2025.

Brevan Howard Capital Management first reported a position in IRM in Q2 2023 and has held it in 3 quarters since. The position peaked at $6.31M in Q2 2025. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • Brevan Howard Capital Management held 3,272 shares of Iron Mountain worth $334K as of Q1 2026.
  • Iron Mountain was a new Brevan Howard Capital Management position in Q1 2026.
  • Iron Mountain made up ﹤0.01% of Brevan Howard Capital Management's portfolio in Q1 2026, its #1552 holding.
  • Brevan Howard Capital Management first reported a position in Iron Mountain in Q2 2023 and has held it in 3 quarters since.
  • Brevan Howard Capital Management's Iron Mountain position peaked at $6.31M in Q2 2025.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

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