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Brooklyn Investment Group’s Iron Mountain IRM Stock Holding History

Brooklyn Investment 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
Q1 		$886K Buy
8,679
+3,692
+74% +$367K 0.03% 638
2025
Q4 		$412K Buy
4,987
+1,887
+61% +$177K 0.02% 809
2025
Q3 		$317K Sell
3,100
-103
-3% -$9.92K 0.04% 404
2025
Q2 		$329K Buy
3,203
+249
+8% +$23.5K 0.04% 408
2025
Q1 		$254K Buy
2,954
+401
+16% +$38.6K 0.05% 294
2024
Q4 		$268K Buy
2,553
+26
+1% +$3.06K 0.08% 207
2024
Q3 		$300K Buy
2,527
+2
+0.1% +$214 0.1% 175
2024
Q2 		$201K Hold
2,525
– – 0.09% 229
2024
Q1 		$201K Buy
+2,525
New +$183K 0.09% 229

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
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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Brooklyn Investment Group's IRM Position: Q1 2026 in Review

Brooklyn Investment Group increased its Iron Mountain (IRM) stake by 74% in Q1 2026, buying an estimated $367K and bringing the position to 8,679 shares worth $886K. The position accounts for 0.03% of the portfolio, ranked #638.

Brooklyn Investment Group first reported a position in IRM in Q1 2024 and has held it in 9 quarters since. 1,088 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • Brooklyn Investment Group held 8,679 shares of Iron Mountain worth $886K as of Q1 2026.
  • Brooklyn Investment Group bought 3,692 Iron Mountain shares in Q1 2026, an estimated $367K.
  • Iron Mountain made up 0.03% of Brooklyn Investment Group's portfolio in Q1 2026, its #638 holding.
  • Brooklyn Investment Group first reported a position in Iron Mountain in Q1 2024 and has held it in 9 quarters since.
  • 1,088 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on Brooklyn Investment Group's 13F filing for Q1 2026, filed 29 Apr 2026.