William Mack & Associates
IRM icon

William Mack & Associates’s Iron Mountain IRM Stock Holding History

William Mack & Associates’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
Q3 		$1.22K Buy
+11
New +$1.32K ﹤0.01% 677

Other funds holding IRM

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

William Mack & Associates's IRM Position: Q3 2026 in Review

William Mack & Associates opened a new position in Iron Mountain (IRM) in Q3 2026: 11 shares worth $1.22K. The stake represents ﹤0.01% of the portfolio and ranks #677 among its holdings.

1,000 funds tracked by Wall St. Rank hold IRM as of Q3 2026.

  • William Mack & Associates held 11 shares of Iron Mountain worth $1.22K as of Q3 2026.
  • Iron Mountain was a new William Mack & Associates position in Q3 2026.
  • Iron Mountain made up ﹤0.01% of William Mack & Associates's portfolio in Q3 2026, its #677 holding.
  • 1,000 funds tracked by Wall St. Rank held Iron Mountain as of Q3 2026.

Based on William Mack & Associates's 13F filing for Q3 2026, filed 27 Oct 2026.