Mitsubishi UFJ Asset Management’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
$124M Buy
982,596
+74,231
+8% +$9.1M 0.07% 241
2026
Q1
$92.8M Buy
908,365
+68,799
+8% +$6.84M 0.06% 253
2025
Q4
$69.9M Buy
839,566
+37,254
+5% +$3.49M 0.05% 295
2025
Q3
$81.8M Buy
802,312
+35,724
+5% +$3.44M 0.06% 261
2025
Q2
$78.6M Buy
766,588
+49,340
+7% +$4.65M 0.06% 254
2025
Q1
$61.7M Buy
717,248
+59,805
+9% +$5.76M 0.06% 273
2024
Q4
$69.5M Buy
657,443
+45,569
+7% +$5.35M 0.07% 228
2024
Q3
$72.7M Buy
611,874
+34,840
+6% +$3.73M 0.08% 211
2024
Q2
$51.7M Buy
577,034
+61,774
+12% +$5M 0.06% 247
2024
Q1
$41.3M Buy
515,260
+52,608
+11% +$3.81M 0.06% 276
2023
Q4
$30.6M Buy
462,652
+27,551
+6% +$1.73M 0.05% 288
2023
Q3
$25.9M Buy
435,101
+11,123
+3% +$680K 0.05% 292
2023
Q2
$24.1M Buy
423,978
+37,858
+10% +$2.07M 0.05% 303
2023
Q1
$20.4M Buy
386,120
+36,547
+10% +$1.92M 0.05% 315
2022
Q4
$17.4M Buy
349,573
+28,322
+9% +$1.43M 0.05% 319
2022
Q3
$14.1M Buy
321,251
+27,416
+9% +$1.38M 0.05% 318
2022
Q2
$14.3M Buy
293,835
+20,992
+8% +$1.1M 0.06% 308
2022
Q1
$15.1M Buy
272,843
+19,713
+8% +$939K 0.06% 319
2021
Q4
$13M Buy
253,130
+18,782
+8% +$888K 0.05% 360
2021
Q3
$10.2M Buy
234,348
+22,632
+11% +$1.02M 0.05% 390
2021
Q2
$8.96M Buy
211,716
+14,526
+7% +$609K 0.05% 409
2021
Q1
$7.3M Buy
197,190
+18,676
+10% +$624K 0.05% 404
2020
Q4
$5.26M Buy
178,514
+12,710
+8% +$353K 0.04% 427
2020
Q3
$4.44M Buy
165,804
+19,226
+13% +$547K 0.04% 404
2020
Q2
$3.83M Buy
146,578
+15,952
+12% +$403K 0.04% 393
2020
Q1
$3.11M Buy
130,626
+11,279
+9% +$341K 0.05% 360
2019
Q4
$3.66M Buy
119,347
+14,209
+14% +$466K 0.05% 383
2019
Q3
$3.4M Buy
105,138
+601
+0.6% +$18.9K 0.06% 328
2019
Q2
$3.27M Buy
104,537
+15,538
+17% +$509K 0.06% 336
2019
Q1
$3.16M Buy
88,999
+2,292
+3% +$81K 0.07% 288
2018
Q4
$2.83M Buy
86,707
+1,474
+2% +$48.3K 0.07% 267
2018
Q3
$2.94M Buy
85,233
+3,430
+4% +$122K 0.06% 301
2018
Q2
$2.86M Sell
81,803
-362
-0.4% -$12.2K 0.06% 298
2018
Q1
$2.7M Buy
82,165
+480
+0.6% +$16.2K 0.06% 308
2017
Q4
$3.03M Buy
81,685
+6,854
+9% +$272K 0.07% 303
2017
Q3
$2.91M Buy
74,831
+1,790
+2% +$66.9K 0.07% 297
2017
Q2
$2.51M Sell
73,041
-6,033
-8% -$211K 0.06% 317
2017
Q1
$2.82M Buy
79,074
+2,765
+4% +$97.9K 0.06% 324
2016
Q4
$2.53M Sell
76,309
-2,482
-3% -$82.5K 0.06% 330
2016
Q3
$2.96M Buy
78,791
+2,339
+3% +$90.2K 0.07% 281
2016
Q2
$3.04M Buy
76,452
+17,224
+29% +$627K 0.08% 261
2016
Q1
$2.01M Buy
59,228
+6,988
+13% +$201K 0.05% 346
2015
Q4
$1.41M Buy
52,240
+2,125
+4% +$62.3K 0.04% 422
2015
Q3
$1.55M Buy
50,115
+1,950
+4% +$58.2K 0.05% 373
2015
Q2
$1.49M Buy
48,165
+5,186
+12% +$182K 0.05% 430
2015
Q1
$1.57M Sell
42,979
-9,158
-18% -$354K 0.05% 424
2014
Q4
$2.03M Buy
52,137
+9,443
+22% +$343K 0.06% 338
2014
Q3
$1.39M Buy
42,694
+8,268
+24% +$268K 0.04% 460
2014
Q2
$1.13M Buy
34,426
+3,395
+11% +$92.1K 0.03% 558
2014
Q1
$791K Buy
31,031
+1,769
+6% +$45.2K 0.02% 606
2013
Q4
$796K Sell
29,262
-7,925
-21% -$203K 0.02% 603
2013
Q3
$929K Buy
37,187
+2,347
+7% +$59.6K 0.02% 590
2013
Q2
$857K Buy
+34,840
New +$1.12M 0.02% 592

Other funds holding IRM

Mitsubishi UFJ Asset Management's IRM Position: Q2 2026 in Review

Mitsubishi UFJ Asset Management increased its Iron Mountain (IRM) stake by 8.2% in Q2 2026, buying an estimated $9.1M and bringing the position to 982,596 shares worth $124M. The position accounts for 0.07% of the portfolio, ranked #241.

Mitsubishi UFJ Asset Management first reported a position in IRM in Q2 2013 and has held it in 53 quarters since. 1,163 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • Mitsubishi UFJ Asset Management held 982,596 shares of Iron Mountain worth $124M as of Q2 2026.
  • Mitsubishi UFJ Asset Management bought 74,231 Iron Mountain shares in Q2 2026, an estimated $9.1M.
  • Iron Mountain made up 0.07% of Mitsubishi UFJ Asset Management's portfolio in Q2 2026, its #241 holding.
  • Mitsubishi UFJ Asset Management first reported a position in Iron Mountain in Q2 2013 and has held it in 53 quarters since.
  • 1,163 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on Mitsubishi UFJ Asset Management's 13F filing for Q2 2026, filed 7 Aug 2026.