Capital World Investors
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Capital World Investors’s Iron Mountain IRM Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$217M Hold
2,117,169
0.03% 270
2025
Q1
$182M Sell
2,117,169
-1,700,248
-45% -$146M 0.03% 276
2024
Q4
$401M Sell
3,817,417
-298,552
-7% -$31.4M 0.06% 208
2024
Q3
$489M Sell
4,115,969
-177
-0% -$21K 0.08% 193
2024
Q2
$369M Buy
4,116,146
+23
+0% +$2.06K 0.06% 222
2024
Q1
$330M Sell
4,116,123
-956
-0% -$76.7K 0.05% 241
2023
Q4
$288M Sell
4,117,079
-14,718,745
-78% -$1.03B 0.05% 247
2023
Q3
$1.12B Sell
18,835,824
-1,524,206
-7% -$90.6M 0.22% 110
2023
Q2
$1.16B Sell
20,360,030
-5,126,447
-20% -$291M 0.22% 113
2023
Q1
$1.35B Buy
25,486,477
+5,306
+0% +$281K 0.28% 96
2022
Q4
$1.27B Buy
25,481,171
+801,125
+3% +$39.9M 0.27% 99
2022
Q3
$1.09B Sell
24,680,046
-4,226,217
-15% -$186M 0.24% 105
2022
Q2
$1.41B Buy
28,906,263
+5,261
+0% +$256K 0.3% 87
2022
Q1
$1.6B Sell
28,901,002
-3,812,758
-12% -$211M 0.28% 94
2021
Q4
$1.71B Buy
32,713,760
+3,589
+0% +$188K 0.27% 87
2021
Q3
$1.42B Sell
32,710,171
-2,790
-0% -$121K 0.24% 96
2021
Q2
$1.38B Buy
32,712,961
+39,255
+0.1% +$1.66M 0.24% 109
2021
Q1
$1.21B Buy
32,673,706
+3,560,543
+12% +$132M 0.22% 112
2020
Q4
$858M Sell
29,113,163
-6,134,911
-17% -$181M 0.17% 141
2020
Q3
$944M Buy
35,248,074
+7,664
+0% +$205K 0.21% 113
2020
Q2
$920M Buy
35,240,410
+41,103
+0.1% +$1.07M 0.22% 113
2020
Q1
$838M Buy
35,199,307
+6,201,614
+21% +$148M 0.24% 97
2019
Q4
$924M Sell
28,997,693
-3,202,069
-10% -$102M 0.21% 116
2019
Q3
$1.04B Sell
32,199,762
-48,159
-0.1% -$1.56M 0.25% 101
2019
Q2
$1.01B Sell
32,247,921
-1,336,279
-4% -$41.8M 0.24% 112
2019
Q1
$1.19B Hold
33,584,200
0.29% 92
2018
Q4
$1.09B Sell
33,584,200
-657,000
-2% -$21.3M 0.29% 89
2018
Q3
$1.18B Buy
34,241,200
+1,804,600
+6% +$62.3M 0.29% 96
2018
Q2
$1.14B Buy
32,436,600
+1,485,000
+5% +$52M 0.24% 106
2018
Q1
$1.02B Buy
30,951,600
+1,110,220
+4% +$36.5M 0.23% 108
2017
Q4
$1.13B Sell
29,841,380
-2,430,980
-8% -$91.7M 0.24% 98
2017
Q3
$1.26B Hold
32,272,360
0.28% 91
2017
Q2
$1.11B Hold
32,272,360
0.26% 95
2017
Q1
$1.15B Buy
32,272,360
+6,415,580
+25% +$229M 0.28% 89
2016
Q4
$840M Hold
25,856,780
0.21% 114
2016
Q3
$970M Buy
25,856,780
+2,334,095
+10% +$87.6M 0.25% 101
2016
Q2
$937M Sell
23,522,685
-526,229
-2% -$21M 0.25% 101
2016
Q1
$815M Buy
24,048,914
+1,900,000
+9% +$64.4M 0.23% 112
2015
Q4
$598M Sell
22,148,914
-1,298,878
-6% -$35.1M 0.17% 134
2015
Q3
$727M Buy
23,447,792
+3,458,215
+17% +$107M 0.21% 120
2015
Q2
$620M Sell
19,989,577
-2,237,637
-10% -$69.4M 0.17% 138
2015
Q1
$811M Sell
22,227,214
-2,713,119
-11% -$99M 0.22% 115
2014
Q4
$964M Buy
24,940,333
+1,667,319
+7% +$64.5M 0.26% 95
2014
Q3
$760M Hold
23,273,014
0.21% 116
2014
Q2
$825M Buy
23,273,014
+2,163,474
+10% +$76.7M 0.23% 115
2014
Q1
$582M Buy
21,109,540
+161,526
+0.8% +$4.45M 0.17% 137
2013
Q4
$636M Buy
20,948,014
+1,761,619
+9% +$53.5M 0.18% 135
2013
Q3
$518M Sell
19,186,395
-4,166,973
-18% -$113M 0.16% 149
2013
Q2
$621M Buy
+23,353,368
New +$621M 0.2% 123