PEAK6
IRM icon

PEAK6’s Iron Mountain IRM Stock Holding History

PEAK6’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
-55,900
Closed -$4.64M – 2999
2025
Q4 		$4.64M Buy
+55,900
New +$5.23M 0.01% 973
2025
Q3 		– Sell
-3,500
Closed -$359K – 3198
2025
Q2 		$359K Buy
3,500
+2,800
+400% +$264K ﹤0.01% 2251
2025
Q1 		$60.2K Buy
+700
New +$67.5K ﹤0.01% 2670

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

PEAK6's IRM Position: Q1 2026 in Review

PEAK6 increased its Iron Mountain (IRM) stake by 1,036% in Q1 2026, buying an estimated $5.48M and bringing the position to 60,388 shares worth $6.17M. The position accounts for 0.01% of the portfolio, ranked #793.

PEAK6 first reported a position in IRM in Q4 2025 and has held it in 2 quarters since. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • PEAK6 held 60,388 shares of Iron Mountain worth $6.17M as of Q1 2026.
  • PEAK6 bought 55,071 Iron Mountain shares in Q1 2026, an estimated $5.48M.
  • Iron Mountain made up 0.01% of PEAK6's portfolio in Q1 2026, its #793 holding.
  • PEAK6 first reported a position in Iron Mountain in Q4 2025 and has held it in 2 quarters since.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on PEAK6's 13F filing for Q1 2026, filed 14 May 2026.