Russell Investments Group’s Iron Mountain IRM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$177M Sell
1,403,623
-51,490
-4% -$6.31M 0.16% 112
2026
Q1
$148M Buy
1,455,113
+49,353
+4% +$4.91M 0.16% 122
2025
Q4
$117M Sell
1,405,760
-300,675
-18% -$28.1M 0.13% 156
2025
Q3
$174M Sell
1,706,435
-117,229
-6% -$11.3M 0.2% 89
2025
Q2
$187M Buy
1,823,664
+52,550
+3% +$4.95M 0.24% 73
2025
Q1
$152M Sell
1,771,114
-84,718
-5% -$8.16M 0.21% 87
2024
Q4
$195M Sell
1,855,832
-228,748
-11% -$26.9M 0.27% 61
2024
Q3
$247M Sell
2,084,580
-94,389
-4% -$10.1M 0.36% 40
2024
Q2
$195M Buy
2,178,969
+171,980
+9% +$13.9M 0.31% 48
2024
Q1
$161M Sell
2,006,989
-74,797
-4% -$5.41M 0.25% 69
2023
Q4
$146M Buy
2,081,786
+772,988
+59% +$48.5M 0.26% 73
2023
Q3
$77.9M Buy
1,308,798
+224,714
+21% +$13.7M 0.15% 146
2023
Q2
$61.4M Buy
1,084,084
+106,471
+11% +$5.83M 0.12% 186
2023
Q1
$51.5M Buy
977,613
+181,856
+23% +$9.53M 0.1% 225
2022
Q4
$39.7M Sell
795,757
-40,039
-5% -$2.02M 0.08% 297
2022
Q3
$36.7M Buy
835,796
+781,609
+1,442% +$39.5M 0.08% 298
2022
Q2
$2.63M Sell
54,187
-2,603
-5% -$137K 0.01% 1437
2022
Q1
$3.15M Buy
56,790
+2,787
+5% +$133K 0.01% 1406
2021
Q4
$2.83M Sell
54,003
-3,951
-7% -$187K ﹤0.01% 1619
2021
Q3
$2.52M Buy
57,954
+79
+0.1% +$3.56K ﹤0.01% 1694
2021
Q2
$2.45M Sell
57,875
-11,814
-17% -$495K ﹤0.01% 1784
2021
Q1
$2.58M Buy
69,689
+8,591
+14% +$287K ﹤0.01% 1735
2020
Q4
$1.79M Sell
61,098
-2,359
-4% -$65.5K ﹤0.01% 1820
2020
Q3
$1.7M Sell
63,457
-42,456
-40% -$1.21M ﹤0.01% 1787
2020
Q2
$2.75M Buy
105,913
+50,655
+92% +$1.28M 0.01% 1454
2020
Q1
$1.35M Sell
55,258
-4,073
-7% -$123K ﹤0.01% 1685
2019
Q4
$1.88M Buy
59,331
+10,963
+23% +$359K ﹤0.01% 1778
2019
Q3
$1.56M Buy
48,368
+811
+2% +$25.5K ﹤0.01% 1807
2019
Q2
$1.48M Buy
47,557
+16,162
+51% +$530K ﹤0.01% 1816
2019
Q1
$1.12M Sell
31,395
-149,031
-83% -$5.26M ﹤0.01% 2002
2018
Q4
$5.84M Buy
180,426
+139,783
+344% +$4.58M 0.01% 1062
2018
Q3
$1.4M Sell
40,643
-12,803
-24% -$456K ﹤0.01% 1936
2018
Q2
$1.86M Sell
53,446
-30,811
-37% -$1.04M ﹤0.01% 1795
2018
Q1
$2.76M Sell
84,257
-99,183
-54% -$3.34M ﹤0.01% 1648
2017
Q4
$6.96M Buy
183,440
+156,506
+581% +$6.21M 0.01% 1157
2017
Q3
$1.05M Buy
26,934
+2,400
+10% +$89.7K ﹤0.01% 2120
2017
Q2
$843K Buy
24,534
+557
+2% +$19.5K ﹤0.01% 2202
2017
Q1
$855K Sell
23,977
-12,799
-35% -$453K ﹤0.01% 2181
2016
Q4
$1.19M Buy
+36,776
New +$1.22M ﹤0.01% 2090

Other funds holding IRM

Russell Investments Group's IRM Position: Q2 2026 in Review

Russell Investments Group reduced its Iron Mountain (IRM) stake by 3.5% in Q2 2026, selling an estimated $6.31M and leaving 1,403,623 shares worth $177M. The position accounts for 0.16% of the portfolio, ranked #112.

Russell Investments Group first reported a position in IRM in Q4 2016 and has held it in 39 quarters since. The position peaked at $247M in Q3 2024. 1,169 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • Russell Investments Group held 1,403,623 shares of Iron Mountain worth $177M as of Q2 2026.
  • Russell Investments Group sold 51,490 Iron Mountain shares in Q2 2026, an estimated $6.31M.
  • Iron Mountain made up 0.16% of Russell Investments Group's portfolio in Q2 2026, its #112 holding.
  • Russell Investments Group first reported a position in Iron Mountain in Q4 2016 and has held it in 39 quarters since.
  • Russell Investments Group's Iron Mountain position peaked at $247M in Q3 2024.
  • 1,169 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on Russell Investments Group's 13F filing for Q2 2026, filed 6 Aug 2026.