Fidelity Investments’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
Q1
$764M Sell
7,484,398
-499,906
-6% -$49.7M 0.04% 372
2025
Q4
$662M Buy
7,984,304
+126,212
+2% +$11.8M 0.03% 414
2025
Q3
$801M Buy
7,858,092
+1,160,673
+17% +$112M 0.04% 355
2025
Q2
$687M Buy
6,697,419
+1,410,684
+27% +$133M 0.04% 383
2025
Q1
$455M Buy
5,286,735
+4,618,996
+692% +$445M 0.03% 494
2024
Q4
$70.2M Buy
667,739
+56,690
+9% +$6.66M ﹤0.01% 1258
2024
Q3
$72.6M Sell
611,049
-2,681,971
-81% -$287M ﹤0.01% 1217
2024
Q2
$295M Buy
3,293,020
+324,598
+11% +$26.3M 0.02% 638
2024
Q1
$238M Sell
2,968,422
-554,463
-16% -$40.1M 0.02% 724
2023
Q4
$247M Buy
3,522,885
+142,345
+4% +$8.93M 0.02% 665
2023
Q3
$201M Sell
3,380,540
-351,595
-9% -$21.5M 0.02% 700
2023
Q2
$212M Sell
3,732,135
-80,326
-2% -$4.4M 0.02% 698
2023
Q1
$202M Buy
3,812,461
+78,256
+2% +$4.1M 0.02% 702
2022
Q4
$186M Sell
3,734,205
-38,188
-1% -$1.93M 0.02% 710
2022
Q3
$166M Sell
3,772,393
-196,593
-5% -$9.93M 0.02% 747
2022
Q2
$193M Sell
3,968,986
-28,396
-0.7% -$1.49M 0.02% 700
2022
Q1
$221M Buy
3,997,382
+16,439
+0.4% +$783K 0.02% 722
2021
Q4
$208M Sell
3,980,943
-175,559
-4% -$8.3M 0.02% 792
2021
Q3
$181M Sell
4,156,502
-17,356
-0.4% -$781K 0.01% 849
2021
Q2
$177M Sell
4,173,858
-1,034,668
-20% -$43.4M 0.01% 870
2021
Q1
$193M Sell
5,208,526
-2,327,720
-31% -$77.8M 0.02% 804
2020
Q4
$222M Buy
7,536,246
+208,735
+3% +$5.79M 0.02% 700
2020
Q3
$196M Buy
7,327,511
+3,097,576
+73% +$88.1M 0.02% 639
2020
Q2
$110M Buy
4,229,935
+4,224,290
+74,832% +$107M 0.01% 842
2020
Q1
$134K Sell
5,645
-11,308
-67% -$342K ﹤0.01% 2627
2019
Q4
$540K Sell
16,953
-1,941
-10% -$63.6K ﹤0.01% 2486
2019
Q3
$612K Sell
18,894
-9,950
-34% -$313K ﹤0.01% 2495
2019
Q2
$903K Sell
28,844
-114,318
-80% -$3.75M ﹤0.01% 2466
2019
Q1
$5.08M Sell
143,162
-14,504
-9% -$512K ﹤0.01% 2074
2018
Q4
$5.11M Buy
157,666
+105,690
+203% +$3.47M ﹤0.01% 2017
2018
Q3
$1.79M Buy
51,976
+5,653
+12% +$201K ﹤0.01% 2387
2018
Q2
$1.62M Buy
46,323
+7,725
+20% +$261K ﹤0.01% 2372
2018
Q1
$1.27M Buy
38,598
+6,876
+22% +$232K ﹤0.01% 2419
2017
Q4
$1.2M Sell
31,722
-69,151
-69% -$2.74M ﹤0.01% 2425
2017
Q3
$3.92M Buy
100,873
+12,407
+14% +$464K ﹤0.01% 2204
2017
Q2
$3.04M Buy
88,466
+5,460
+7% +$191K ﹤0.01% 2268
2017
Q1
$2.96M Buy
83,006
+4,683
+6% +$166K ﹤0.01% 2286
2016
Q4
$2.54M Sell
78,323
-628
-0.8% -$20.9K ﹤0.01% 2333
2016
Q3
$2.96M Sell
78,951
-2,341
-3% -$90.3K ﹤0.01% 2297
2016
Q2
$3.24M Buy
81,292
+16,917
+26% +$616K ﹤0.01% 2272
2016
Q1
$2.18M Buy
64,375
+332
+0.5% +$9.54K ﹤0.01% 2367
2015
Q4
$1.73M Sell
64,043
-356
-0.6% -$10.4K ﹤0.01% 2449
2015
Q3
$2M Buy
64,399
+330
+0.5% +$9.85K ﹤0.01% 2423
2015
Q2
$1.99M Sell
64,069
-1,130,144
-95% -$39.6M ﹤0.01% 2450
2015
Q1
$43.6M Sell
1,194,213
-357,989
-23% -$13.8M 0.01% 1393
2014
Q4
$60M Sell
1,552,202
-364,935
-19% -$13.3M 0.01% 1242
2014
Q3
$62.6M Sell
1,917,137
-106,940
-5% -$3.47M 0.01% 1192
2014
Q2
$66.3M Sell
2,024,077
-1,567,412
-44% -$42.5M 0.01% 1222
2014
Q1
$91.5M Sell
3,591,489
-186,151
-5% -$4.76M 0.01% 1030
2013
Q4
$106M Buy
3,777,640
+1,901,289
+101% +$48.7M 0.02% 947
2013
Q3
$46.9M Buy
1,876,351
+261,571
+16% +$6.64M 0.01% 1311
2013
Q2
$39.7M Buy
+1,614,780
New +$52.1M 0.01% 1357

Other funds holding IRM

Fidelity Investments's IRM Position: Q1 2026 in Review

Fidelity Investments reduced its Iron Mountain (IRM) stake by 6.3% in Q1 2026, selling an estimated $49.7M and leaving 7,484,398 shares worth $764M. The position accounts for 0.04% of the portfolio, ranked #372.

Fidelity Investments first reported a position in IRM in Q2 2013 and has held it in 52 quarters since. The position peaked at $801M in Q3 2025. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • Fidelity Investments held 7,484,398 shares of Iron Mountain worth $764M as of Q1 2026.
  • Fidelity Investments sold 499,906 Iron Mountain shares in Q1 2026, an estimated $49.7M.
  • Iron Mountain made up 0.04% of Fidelity Investments's portfolio in Q1 2026, its #372 holding.
  • Fidelity Investments first reported a position in Iron Mountain in Q2 2013 and has held it in 52 quarters since.
  • Fidelity Investments's Iron Mountain position peaked at $801M in Q3 2025.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on Fidelity Investments's 13F filing for Q1 2026, filed 15 May 2026.