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David Shaw’s Iron Mountain IRM Stock Holding History

David Shaw’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 		$2.44M Hold
19,300
– – ﹤0.01% 3038
2026
Q1 		$1.97M Hold
19,300
– – ﹤0.01% 2926
2025
Q4 		$1.6M Buy
+19,300
New +$1.81M ﹤0.01% 3220
2025
Q3 		– Sell
-3,800
Closed -$390K – 4740
2025
Q2 		$390K Sell
3,800
-35,300
-90% -$3.33M ﹤0.01% 3750
2025
Q1 		$3.36M Sell
39,100
-93,800
-71% -$9.04M ﹤0.01% 2199
2024
Q4 		$14M Sell
132,900
-26,400
-17% -$3.1M 0.01% 1273
2024
Q3 		$18.9M Buy
159,300
+75,900
+91% +$8.12M 0.02% 1020
2024
Q2 		$7.47M Buy
83,400
+50,900
+157% +$4.12M 0.01% 1541
2024
Q1 		$2.61M Sell
32,500
-26,600
-45% -$1.93M ﹤0.01% 2420
2023
Q4 		$4.14M Buy
59,100
+32,500
+122% +$2.04M ﹤0.01% 2064
2023
Q3 		$1.58M Sell
26,600
-63,600
-71% -$3.89M ﹤0.01% 2765
2023
Q2 		$5.13M Buy
+90,200
New +$4.94M 0.01% 1841
2023
Q1 		– Sell
-12,100
Closed -$603K – 4651
2022
Q4 		$603K Hold
12,100
– – ﹤0.01% 3749
2022
Q3 		$532K Sell
12,100
-78,400
-87% -$3.96M ﹤0.01% 4007
2022
Q2 		$4.41M Buy
90,500
+80,000
+762% +$4.21M 0.01% 2278
2022
Q1 		$582K Sell
10,500
-128,500
-92% -$6.12M ﹤0.01% 4282
2021
Q4 		$7.27M Buy
139,000
+7,200
+5% +$340K 0.01% 1988
2021
Q3 		$5.73M Buy
131,800
+51,500
+64% +$2.32M 0.01% 1980
2021
Q2 		$3.4M Buy
80,300
+51,700
+181% +$2.17M ﹤0.01% 2388
2021
Q1 		$1.06M Buy
+28,600
New +$956K ﹤0.01% 3071
2019
Q4 		– Sell
-20,000
Closed -$648K – 4050
2019
Q3 		$648K Hold
20,000
– – ﹤0.01% 3081
2019
Q2 		$626K Buy
+20,000
New +$655K ﹤0.01% 2962

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

David Shaw's IRM Position: Q2 2026 in Review

David Shaw opened a new position in Iron Mountain (IRM) in Q2 2026: 109,823 shares worth $13.9M. The stake represents 0.01% of the portfolio and ranks #1566 among its holdings. This is a return to the name: David Shaw previously reported a position in IRM as recently as Q4 2025.

David Shaw first reported a position in IRM in Q2 2013 and has held it in 42 quarters since. The position peaked at $70.3M in Q1 2025. 1,163 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • David Shaw held 109,823 shares of Iron Mountain worth $13.9M as of Q2 2026.
  • Iron Mountain was a new David Shaw position in Q2 2026.
  • Iron Mountain made up 0.01% of David Shaw's portfolio in Q2 2026, its #1566 holding.
  • David Shaw first reported a position in Iron Mountain in Q2 2013 and has held it in 42 quarters since.
  • David Shaw's Iron Mountain position peaked at $70.3M in Q1 2025.
  • 1,163 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.