DnB Asset Management
IRM icon

DnB Asset Management’s Iron Mountain IRM Stock Holding History

DnB Asset Management’s Portfolio IRM Stock Details IRM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$8.52M Sell
67,481
-23,752
-26% -$2.91M 0.02% 369
2026
Q1 		$9.32M Sell
91,233
-50,106
-35% -$4.98M 0.03% 314
2025
Q4 		$11.7M Buy
141,339
+84,356
+148% +$7.9M 0.04% 264
2025
Q3 		$5.81M Buy
56,983
+2,951
+5% +$284K 0.02% 390
2025
Q2 		$5.54M Buy
54,032
+2,300
+4% +$217K 0.02% 372
2025
Q1 		$4.45M Sell
51,732
-853
-2% -$82.2K 0.02% 396
2024
Q4 		$5.53M Buy
52,585
+2,919
+6% +$343K 0.02% 372
2024
Q3 		$5.9M Buy
49,666
+743
+2% +$79.5K 0.03% 362
2024
Q2 		$4.38M Buy
48,923
+3,822
+8% +$309K 0.02% 376
2024
Q1 		$3.62M Sell
45,101
-1,841
-4% -$133K 0.02% 406
2023
Q4 		$3.29M Sell
46,942
-310
-0.7% -$19.4K 0.02% 450
2023
Q3 		$2.81M Sell
47,252
-6,731
-12% -$411K 0.02% 483
2023
Q2 		$3.07M Sell
53,983
-740
-1% -$40.5K 0.02% 455
2023
Q1 		$2.9M Buy
54,723
+9,634
+21% +$505K 0.02% 468
2022
Q4 		$2.25M Sell
45,089
-2,043
-4% -$103K 0.02% 486
2022
Q3 		$2.07M Sell
47,132
-1,300
-3% -$65.6K 0.02% 495
2022
Q2 		$2.36M Buy
48,432
+939
+2% +$49.4K 0.02% 492
2022
Q1 		$2.63M Buy
47,493
+3,225
+7% +$154K 0.02% 500
2021
Q4 		$2.32M Buy
44,268
+4,352
+11% +$206K 0.01% 533
2021
Q3 		$1.73M Buy
39,916
+1,657
+4% +$74.6K 0.01% 563
2021
Q2 		$1.62M Buy
38,259
+1,842
+5% +$77.3K 0.01% 567
2021
Q1 		$1.35M Buy
36,417
+2,141
+6% +$71.6K 0.01% 578
2020
Q4 		$1.01M Buy
34,276
+2,866
+9% +$79.5K 0.01% 566
2020
Q3 		$841K Buy
31,410
+3,438
+12% +$97.8K 0.01% 541
2020
Q2 		$730K Hold
27,972
– – 0.01% 554
2020
Q1 		$666K Sell
27,972
-5,300
-16% -$160K 0.01% 539
2019
Q4 		$1.06M Buy
33,272
+2,800
+9% +$91.8K 0.01% 571
2019
Q3 		$987K Buy
30,472
+2,924
+11% +$91.8K 0.01% 554
2019
Q2 		$862K Sell
27,548
-620
-2% -$20.3K 0.01% 559
2019
Q1 		$999K Sell
28,168
-19,974
-41% -$706K 0.01% 535
2018
Q4 		$1.56M Buy
48,142
+19,500
+68% +$640K 0.02% 437
2018
Q3 		$989K Buy
28,642
+400
+1% +$14.2K 0.01% 535
2018
Q2 		$989K Buy
28,242
+2,100
+8% +$70.9K 0.01% 534
2018
Q1 		$859K Buy
26,142
+1,800
+7% +$60.7K 0.01% 537
2017
Q4 		$918K Buy
24,342
+3,100
+15% +$123K 0.01% 516
2017
Q3 		$826K Hold
21,242
– – 0.01% 509
2017
Q2 		$730K Buy
21,242
+1,200
+6% +$42K 0.01% 497
2017
Q1 		$715K Buy
20,042
+4,300
+27% +$152K 0.01% 509
2016
Q4 		$511K Buy
15,742
+1,300
+9% +$43.2K 0.01% 498
2016
Q3 		$542K Hold
14,442
– – 0.01% 468
2016
Q2 		$575K Buy
14,442
+2,700
+23% +$98.3K 0.01% 454
2016
Q1 		$398K Buy
+11,742
New +$337K 0.01% 482
2015
Q3 		– Sell
-12,642
Closed -$392K – 463
2015
Q2 		$392K Sell
12,642
-2,300
-15% -$80.5K 0.01% 429
2015
Q1 		$545K Buy
14,942
+1,700
+13% +$65.6K 0.01% 414
2014
Q4 		$512K Buy
+13,242
New +$482K 0.01% 412

Other funds holding IRM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $63.2B AUM 17.15% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

DnB Asset Management's IRM Position: Q2 2026 in Review

DnB Asset Management reduced its Iron Mountain (IRM) stake by 26% in Q2 2026, selling an estimated $2.91M and leaving 67,481 shares worth $8.52M. The position accounts for 0.02% of the portfolio, ranked #369.

DnB Asset Management first reported a position in IRM in Q4 2014 and has held it in 45 quarters since. The position peaked at $11.7M in Q4 2025. 1,170 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • DnB Asset Management held 67,481 shares of Iron Mountain worth $8.52M as of Q2 2026.
  • DnB Asset Management sold 23,752 Iron Mountain shares in Q2 2026, an estimated $2.91M.
  • Iron Mountain made up 0.02% of DnB Asset Management's portfolio in Q2 2026, its #369 holding.
  • DnB Asset Management first reported a position in Iron Mountain in Q4 2014 and has held it in 45 quarters since.
  • DnB Asset Management's Iron Mountain position peaked at $11.7M in Q4 2025.
  • 1,170 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on DnB Asset Management's 13F filing for Q2 2026, filed 11 Aug 2026.