Capstone Investment Advisors’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
$643K Sell
6,300
-6,400
-50% -$637K ﹤0.01% 1030
2025
Q4
$1.05M Sell
12,700
-7,000
-36% -$655K ﹤0.01% 845
2025
Q3
$2.01M Buy
19,700
+3,600
+22% +$347K ﹤0.01% 762
2025
Q2
$1.65M Sell
16,100
-4,600
-22% -$434K ﹤0.01% 705
2025
Q1
$1.78M Sell
20,700
-1,200
-5% -$116K ﹤0.01% 714
2024
Q4
$2.3M Buy
21,900
+14,000
+177% +$1.64M 0.01% 806
2024
Q3
$939K Buy
7,900
+300
+4% +$32.1K ﹤0.01% 978
2024
Q2
$681K Buy
7,600
+1,100
+17% +$89K ﹤0.01% 1152
2024
Q1
$521K Sell
6,500
-6,100
-48% -$442K ﹤0.01% 1532
2023
Q4
$882K Buy
12,600
+300
+2% +$18.8K ﹤0.01% 1103
2023
Q3
$731K Buy
12,300
+3,100
+34% +$189K ﹤0.01% 1122
2023
Q2
$523K Buy
9,200
+4,100
+80% +$224K ﹤0.01% 1137
2023
Q1
$270K Sell
5,100
-24,700
-83% -$1.29M ﹤0.01% 1197
2022
Q4
$1.49M Buy
29,800
+1,600
+6% +$80.8K 0.01% 807
2022
Q3
$1.24M Buy
28,200
+1,500
+6% +$75.7K 0.01% 936
2022
Q2
$1.3M Sell
26,700
-38,200
-59% -$2.01M 0.01% 924
2022
Q1
$3.6M Sell
64,900
-87,600
-57% -$4.17M 0.01% 816
2021
Q4
$7.98M Buy
152,500
+13,200
+9% +$624K 0.01% 683
2021
Q3
$6.05M Buy
139,300
+40,700
+41% +$1.83M 0.01% 792
2021
Q2
$4.17M Buy
98,600
+33,200
+51% +$1.39M 0.01% 770
2021
Q1
$2.42M Sell
65,400
-3,900
-6% -$130K 0.01% 867
2020
Q4
$2.04M Sell
69,300
-18,600
-21% -$516K 0.01% 864
2020
Q3
$2.35M Buy
87,900
+7,300
+9% +$208K 0.01% 752
2020
Q2
$2.1M Buy
80,600
+36,300
+82% +$917K 0.01% 701
2020
Q1
$1.05M Sell
44,300
-30,700
-41% -$929K 0.02% 703
2019
Q4
$2.39M Sell
75,000
-107,300
-59% -$3.52M 0.01% 783
2019
Q3
$5.91M Buy
182,300
+143,100
+365% +$4.49M 0.04% 393
2019
Q2
$1.23M Buy
39,200
+17,200
+78% +$564K 0.01% 880
2019
Q1
$780K Buy
22,000
+13,500
+159% +$477K 0.01% 885
2018
Q4
$275K Buy
8,500
+2,800
+49% +$91.8K ﹤0.01% 960
2018
Q3
$197K Buy
+5,700
New +$203K ﹤0.01% 1020
2014
Q3
Sell
-24,345
Closed -$797K 472
2014
Q2
$797K Buy
+24,345
New +$660K 0.01% 329
2014
Q1
Sell
-15,797
Closed -$443K 456
2013
Q4
$443K Sell
15,797
-108
-0.7% -$2.77K ﹤0.01% 435
2013
Q3
$397K Buy
+15,905
New +$404K ﹤0.01% 474

Other funds holding IRM

Capstone Investment Advisors's IRM Position: Q1 2026 in Review

Capstone Investment Advisors sold out of Iron Mountain (IRM) in Q1 2026, closing a stake of 3,901 shares — an estimated $388K sold.

Capstone Investment Advisors first reported a position in IRM in Q2 2013 and held it in 21 quarters. The position peaked at $886K in Q2 2025. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • Capstone Investment Advisors reported no remaining Iron Mountain position as of Q1 2026 after selling out during the quarter.
  • Capstone Investment Advisors sold 3,901 Iron Mountain shares in Q1 2026, an estimated $388K.
  • Capstone Investment Advisors first reported a position in Iron Mountain in Q2 2013 and held it in 21 quarters.
  • Capstone Investment Advisors's Iron Mountain position peaked at $886K in Q2 2025.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on Capstone Investment Advisors's 13F filing for Q1 2026, filed 15 May 2026.