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StoneX Group’s Iron Mountain IRM Stock Holding History

StoneX Group’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 		$482K Buy
+3,804
New +$466K 0.02% 585
2026
Q1 		– Sell
-2,901
Closed -$242K – 1085
2025
Q4 		$242K Buy
+2,901
New +$272K 0.01% 797
2024
Q4 		– Sell
-2,333
Closed -$278K – 897
2024
Q3 		$278K Buy
+2,333
New +$250K 0.02% 490

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

StoneX Group's IRM Position: Q2 2026 in Review

StoneX Group opened a new position in Iron Mountain (IRM) in Q2 2026: 3,804 shares worth $482K. The stake represents 0.02% of the portfolio and ranks #585 among its holdings. This is a return to the name: StoneX Group previously reported a position in IRM as recently as Q4 2025.

StoneX Group first reported a position in IRM in Q3 2024 and has held it in 3 quarters since. 1,170 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • StoneX Group held 3,804 shares of Iron Mountain worth $482K as of Q2 2026.
  • Iron Mountain was a new StoneX Group position in Q2 2026.
  • Iron Mountain made up 0.02% of StoneX Group's portfolio in Q2 2026, its #585 holding.
  • StoneX Group first reported a position in Iron Mountain in Q3 2024 and has held it in 3 quarters since.
  • 1,170 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on StoneX Group's 13F filing for Q2 2026, filed 12 Aug 2026.