Jane Street’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
$6.93M Buy
67,800
+37,800
+126% +$3.76M ﹤0.01% 3031
2025
Q4
$2.49M Sell
30,000
-6,200
-17% -$580K ﹤0.01% 4404
2025
Q3
$3.69M Buy
36,200
+12,900
+55% +$1.24M ﹤0.01% 3882
2025
Q2
$2.39M Sell
23,300
-90,600
-80% -$8.54M ﹤0.01% 4137
2025
Q1
$9.8M Buy
113,900
+100,800
+769% +$9.71M ﹤0.01% 2011
2024
Q4
$1.38M Sell
13,100
-46,500
-78% -$5.46M ﹤0.01% 4811
2024
Q3
$7.08M Buy
59,600
+53,600
+893% +$5.73M ﹤0.01% 2338
2024
Q2
$538K Buy
6,000
+800
+15% +$64.7K ﹤0.01% 6899
2024
Q1
$417K Sell
5,200
-10,400
-67% -$753K ﹤0.01% 7013
2023
Q4
$1.09M Sell
15,600
-22,100
-59% -$1.39M ﹤0.01% 5403
2023
Q3
$2.24M Sell
37,700
-54,000
-59% -$3.3M ﹤0.01% 3855
2023
Q2
$5.21M Buy
91,700
+62,300
+212% +$3.41M ﹤0.01% 2675
2023
Q1
$1.56M Sell
29,400
-20,300
-41% -$1.06M ﹤0.01% 4245
2022
Q4
$2.48M Sell
49,700
-9,500
-16% -$480K ﹤0.01% 3516
2022
Q3
$2.6M Sell
59,200
-24,800
-30% -$1.25M ﹤0.01% 3706
2022
Q2
$4.09M Buy
84,000
+5,400
+7% +$284K ﹤0.01% 2962
2022
Q1
$4.36M Buy
78,600
+21,600
+38% +$1.03M ﹤0.01% 3268
2021
Q4
$2.98M Sell
57,000
-5,100
-8% -$241K ﹤0.01% 3704
2021
Q3
$2.7M Sell
62,100
-17,800
-22% -$801K ﹤0.01% 3877
2021
Q2
$3.38M Sell
79,900
-55,500
-41% -$2.33M ﹤0.01% 3359
2021
Q1
$5.01M Buy
135,400
+71,500
+112% +$2.39M ﹤0.01% 2401
2020
Q4
$1.88M Sell
63,900
-25,800
-29% -$716K ﹤0.01% 3590
2020
Q3
$2.4M Sell
89,700
-27,900
-24% -$794K ﹤0.01% 2762
2020
Q2
$3.07M Buy
117,600
+84,800
+259% +$2.14M ﹤0.01% 2473
2020
Q1
$781K Buy
+32,800
New +$993K ﹤0.01% 3090
2018
Q3
Sell
-12,500
Closed -$438K 5400
2018
Q2
$438K Buy
+12,500
New +$422K ﹤0.01% 3727
2018
Q1
Sell
-28,600
Closed -$1.08M 5089
2017
Q4
$1.08M Buy
+28,600
New +$1.13M ﹤0.01% 2257

Other funds holding IRM

Jane Street's IRM Position: Q1 2026 in Review

Jane Street opened a new position in Iron Mountain (IRM) in Q1 2026: 707,441 shares worth $72.3M. The stake represents 0.01% of the portfolio and ranks #818 among its holdings. This is a return to the name: Jane Street previously reported a position in IRM as recently as Q2 2025.

Jane Street first reported a position in IRM in Q2 2014 and has held it in 34 quarters since. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • Jane Street held 707,441 shares of Iron Mountain worth $72.3M as of Q1 2026.
  • Iron Mountain was a new Jane Street position in Q1 2026.
  • Iron Mountain made up 0.01% of Jane Street's portfolio in Q1 2026, its #818 holding.
  • Jane Street first reported a position in Iron Mountain in Q2 2014 and has held it in 34 quarters since.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.