State of Wisconsin Investment Board’s Iron Mountain IRM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$18.5M Sell
180,666
-7,121
-4% -$730K 0.05% 357
2025
Q1
$16.2M Buy
187,787
+9,159
+5% +$788K 0.04% 389
2024
Q4
$18.8M Sell
178,628
-8,127
-4% -$854K 0.05% 351
2024
Q3
$22.2M Buy
186,755
+18,520
+11% +$2.2M 0.06% 327
2024
Q2
$15.1M Sell
168,235
-598
-0.4% -$53.6K 0.04% 403
2024
Q1
$13.5M Sell
168,833
-21,003
-11% -$1.68M 0.04% 474
2023
Q4
$13.3M Buy
189,836
+2,959
+2% +$207K 0.04% 466
2023
Q3
$11.1M Buy
186,877
+17,439
+10% +$1.04M 0.03% 509
2023
Q2
$9.63M Buy
169,438
+9,631
+6% +$547K 0.03% 624
2023
Q1
$8.46M Buy
159,807
+50,566
+46% +$2.68M 0.03% 672
2022
Q4
$5.45M Buy
109,241
+12,130
+12% +$605K 0.02% 886
2022
Q3
$4.27M Sell
97,111
-29,795
-23% -$1.31M 0.01% 1017
2022
Q2
$6.18M Sell
126,906
-7,562
-6% -$368K 0.02% 889
2022
Q1
$7.45M Sell
134,468
-1,577
-1% -$87.4K 0.02% 947
2021
Q4
$7.12M Sell
136,045
-2,271
-2% -$119K 0.01% 906
2021
Q3
$6.01M Buy
138,316
+9,516
+7% +$413K 0.01% 973
2021
Q2
$5.45M Sell
128,800
-4,607
-3% -$195K 0.01% 1018
2021
Q1
$4.94M Sell
133,407
-4,448
-3% -$165K 0.01% 1024
2020
Q4
$4.06M Sell
137,855
-13,660
-9% -$403K 0.01% 1044
2020
Q3
$4.06M Buy
151,515
+890
+0.6% +$23.8K 0.01% 990
2020
Q2
$3.93M Sell
150,625
-2,610
-2% -$68.1K 0.01% 956
2020
Q1
$3.65M Sell
153,235
-42,448
-22% -$1.01M 0.01% 894
2019
Q4
$6.24M Buy
+195,683
New +$6.24M 0.02% 866
2019
Q3
Sell
-49,096
Closed -$1.54M 1560
2019
Q2
$1.54M Buy
+49,096
New +$1.54M ﹤0.01% 1059
2018
Q4
Sell
-179,668
Closed -$6.2M 1558
2018
Q3
$6.2M Sell
179,668
-50,977
-22% -$1.76M 0.02% 810
2018
Q2
$8.08M Buy
230,645
+969
+0.4% +$33.9K 0.02% 734
2018
Q1
$7.55M Sell
229,676
-14,701
-6% -$483K 0.02% 743
2017
Q4
$9.22M Sell
244,377
-1,645
-0.7% -$62.1K 0.03% 668
2017
Q3
$9.57M Buy
246,022
+2,363
+1% +$91.9K 0.03% 615
2017
Q2
$8.37M Sell
243,659
-7,372
-3% -$253K 0.03% 633
2017
Q1
$8.95M Buy
251,031
+27,989
+13% +$998K 0.03% 557
2016
Q4
$7.24M Sell
223,042
-25,430
-10% -$826K 0.03% 596
2016
Q3
$9.33M Sell
248,472
-5,800
-2% -$218K 0.04% 543
2016
Q2
$10.1M Buy
254,272
+39,340
+18% +$1.57M 0.04% 496
2016
Q1
$7.29M Sell
214,932
-6,050
-3% -$205K 0.03% 628
2015
Q4
$5.97M Sell
220,982
-2,000
-0.9% -$54K 0.02% 705
2015
Q3
$6.92M Sell
222,982
-4,330
-2% -$134K 0.03% 646
2015
Q2
$7.05M Buy
227,312
+30,930
+16% +$959K 0.02% 690
2015
Q1
$7.16M Sell
196,382
-3,720
-2% -$136K 0.02% 686
2014
Q4
$7.74M Buy
200,102
+18,238
+10% +$705K 0.03% 644
2014
Q3
$5.94M Sell
181,864
-200,963
-52% -$6.56M 0.02% 739
2014
Q2
$12.5M Sell
382,827
-25,708
-6% -$842K 0.05% 477
2014
Q1
$10.4M Buy
408,535
+238
+0.1% +$6.07K 0.04% 536
2013
Q4
$11.5M Sell
408,297
-4,014
-1% -$113K 0.04% 492
2013
Q3
$10.3M Buy
412,311
+116,953
+40% +$2.92M 0.04% 529
2013
Q2
$7.26M Buy
+295,358
New +$7.26M 0.03% 654