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.