AQR Capital Management
IRM icon

AQR Capital Management’s Iron Mountain IRM Stock Holding History

AQR Capital Management’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 		$183M Buy
1,846,073
+922,877
+100% +$91.8M 0.08% 327
2025
Q4 		$76.6M Buy
923,196
+465,724
+102% +$43.6M 0.04% 544
2025
Q3 		$46.4M Buy
457,472
+351,463
+332% +$33.9M 0.03% 625
2025
Q2 		$10.8M Buy
106,009
+40,844
+63% +$3.85M 0.01% 942
2025
Q1 		$5.53M Sell
65,165
-138,699
-68% -$13.4M 0.01% 1086
2024
Q4 		$21.2M Buy
203,864
+40,162
+25% +$4.72M 0.03% 620
2024
Q3 		$19.1M Buy
163,702
+113,464
+226% +$12.1M 0.03% 634
2024
Q2 		$4.5M Buy
50,238
+322
+0.6% +$26.1K 0.01% 1069
2024
Q1 		$4M Buy
49,916
+25,706
+106% +$1.86M 0.01% 1077
2023
Q4 		$1.69M Sell
24,210
-5,014
-17% -$315K ﹤0.01% 1414
2023
Q3 		$1.74M Sell
29,224
-12,541
-30% -$766K ﹤0.01% 1387
2023
Q2 		$2.37M Buy
41,765
+10,249
+33% +$561K 0.01% 1196
2023
Q1 		$1.65M Buy
31,516
+4,574
+17% +$240K ﹤0.01% 1330
2022
Q4 		$1.34M Sell
26,942
-3,405
-11% -$172K ﹤0.01% 1450
2022
Q3 		$1.33M Buy
30,347
+5,758
+23% +$291K ﹤0.01% 1385
2022
Q2 		$1.18M Sell
24,589
-1,676
-6% -$88.2K ﹤0.01% 1342
2022
Q1 		$1.46M Sell
26,265
-5,900
-18% -$281K ﹤0.01% 1352
2021
Q4 		$1.68M Sell
32,165
-2,478
-7% -$117K ﹤0.01% 1286
2021
Q3 		$1.5M Buy
34,643
+17,931
+107% +$807K ﹤0.01% 1330
2021
Q2 		$707K Sell
16,712
-27,954
-63% -$1.17M ﹤0.01% 1733
2021
Q1 		$1.65M Sell
44,666
-155,514
-78% -$5.2M ﹤0.01% 1314
2020
Q4 		$5.83M Buy
200,180
+180,637
+924% +$5.01M 0.01% 740
2020
Q3 		$524K Sell
19,543
-43,957
-69% -$1.25M ﹤0.01% 1703
2020
Q2 		$1.63M Buy
63,500
+34,123
+116% +$862K ﹤0.01% 1254
2020
Q1 		$699K Sell
29,377
-32,664
-53% -$989K ﹤0.01% 1474
2019
Q4 		$1.98M Sell
62,041
-14,928
-19% -$489K ﹤0.01% 1275
2019
Q3 		$2.49M Buy
76,969
+2,127
+3% +$66.8K ﹤0.01% 1205
2019
Q2 		$2.34M Sell
74,842
-12,758
-15% -$418K ﹤0.01% 1210
2019
Q1 		$3.11M Buy
87,600
+20,948
+31% +$740K ﹤0.01% 1160
2018
Q4 		$2.16M Sell
66,652
-11,189
-14% -$367K ﹤0.01% 1218
2018
Q3 		$2.69M Sell
77,841
-2,051
-3% -$73.1K ﹤0.01% 1265
2018
Q2 		$2.8M Buy
79,892
+5,903
+8% +$199K ﹤0.01% 1271
2018
Q1 		$2.43M Buy
73,989
+18,529
+33% +$624K ﹤0.01% 1271
2017
Q4 		$2.09M Buy
55,460
+11,126
+25% +$441K ﹤0.01% 1356
2017
Q3 		$1.73M Sell
44,334
-1,118
-2% -$41.8K ﹤0.01% 1433
2017
Q2 		$1.56M Sell
45,452
-19,879
-30% -$695K ﹤0.01% 1494
2017
Q1 		$2.33M Buy
65,331
+6,371
+11% +$226K ﹤0.01% 1318
2016
Q4 		$1.92M Sell
58,960
-6,909
-10% -$230K ﹤0.01% 1429
2016
Q3 		$2.47M Buy
65,869
+18,395
+39% +$709K ﹤0.01% 1321
2016
Q2 		$1.89M Buy
47,474
+28,284
+147% +$1.03M ﹤0.01% 1320
2016
Q1 		$651K Sell
19,190
-1,125
-6% -$32.3K ﹤0.01% 1727
2015
Q4 		$549K Hold
20,315
– – ﹤0.01% 1841
2015
Q3 		$630K Sell
20,315
-11,900
-37% -$355K ﹤0.01% 1635
2015
Q2 		$999K Buy
32,215
+11,748
+57% +$411K ﹤0.01% 1491
2015
Q1 		$747K Sell
20,467
-47,002
-70% -$1.81M ﹤0.01% 1544
2014
Q4 		$2.61M Buy
67,469
+2,524
+4% +$91.8K 0.01% 1164
2014
Q3 		$2.12M Buy
64,945
+22,482
+53% +$729K 0.01% 1231
2014
Q2 		$1.39M Sell
42,463
-79,743
-65% -$2.16M ﹤0.01% 1478
2014
Q1 		$3.11M Buy
122,206
+97,941
+404% +$2.51M 0.01% 1072
2013
Q4 		$681K Sell
24,265
-78,856
-76% -$2.02M ﹤0.01% 1913
2013
Q3 		$2.58M Buy
103,121
+49,101
+91% +$1.25M 0.01% 1133
2013
Q2 		$1.33M Buy
+54,020
New +$1.74M ﹤0.01% 1431

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

AQR Capital Management's IRM Position: Q1 2026 in Review

AQR Capital Management increased its Iron Mountain (IRM) stake by 100% in Q1 2026, buying an estimated $91.8M and bringing the position to 1,846,073 shares worth $183M. The position accounts for 0.08% of the portfolio, ranked #327.

AQR Capital Management first reported a position in IRM in Q2 2013 and has held it in 52 quarters since. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • AQR Capital Management held 1,846,073 shares of Iron Mountain worth $183M as of Q1 2026.
  • AQR Capital Management bought 922,877 Iron Mountain shares in Q1 2026, an estimated $91.8M.
  • Iron Mountain made up 0.08% of AQR Capital Management's portfolio in Q1 2026, its #327 holding.
  • AQR Capital Management first reported a position in Iron Mountain in Q2 2013 and has held it in 52 quarters since.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on AQR Capital Management's 13F filing for Q1 2026, filed 15 May 2026.