Simplex Trading’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 | $1.53M | Sell |
15,000
-15,500
| -51% | -$1.54M | ﹤0.01% | 2064 |
|
|
2025
Q4 | $2.53M | Buy |
30,500
+9,500
| +45% | +$889K | ﹤0.01% | 1791 |
|
|
2025
Q3 | $2.14M | Sell |
21,000
-144,500
| -87% | -$13.9M | ﹤0.01% | 2258 |
|
|
2025
Q2 | $17M | Sell |
165,500
-7,000
| -4% | -$660K | 0.01% | 619 |
|
|
2025
Q1 | $14.8M | Buy |
172,500
+127,200
| +281% | +$12.3M | 0.01% | 660 |
|
|
2024
Q4 | $4.76M | Sell |
45,300
-299,800
| -87% | -$35.2M | ﹤0.01% | 1506 |
|
|
2024
Q3 | $27.6M | Buy |
345,100
+280,700
| +436% | +$30M | 0.02% | 511 |
|
|
2024
Q2 | $5.77M | Buy |
64,400
+7,800
| +14% | +$631K | ﹤0.01% | 1353 |
|
|
2024
Q1 | $4.54M | Buy |
56,600
+20,500
| +57% | +$1.48M | ﹤0.01% | 1678 |
|
|
2023
Q4 | $2.53M | Sell |
36,100
-17,100
| -32% | -$1.07M | ﹤0.01% | 2175 |
|
|
2023
Q3 | $3.16M | Sell |
53,200
-72,200
| -58% | -$4.41M | ﹤0.01% | 1678 |
|
|
2023
Q2 | $7.13M | Buy |
125,400
+91,900
| +274% | +$5.03M | 0.01% | 1083 |
|
|
2023
Q1 | $1.77M | Sell |
33,500
-146,200
| -81% | -$7.66M | ﹤0.01% | 2046 |
|
|
2022
Q4 | $8.96M | Buy |
179,700
+126,200
| +236% | +$6.37M | 0.01% | 899 |
|
|
2022
Q3 | $2.35M | Sell |
53,500
-37,100
| -41% | -$1.87M | ﹤0.01% | 1812 |
|
|
2022
Q2 | $4.41M | Buy |
90,600
+32,600
| +56% | +$1.72M | ﹤0.01% | 1229 |
|
|
2022
Q1 | $3.21M | Buy |
58,000
+6,700
| +13% | +$319K | ﹤0.01% | 1636 |
|
|
2021
Q4 | $2.68M | Sell |
51,300
-19,500
| -28% | -$922K | ﹤0.01% | 1736 |
|
|
2021
Q3 | $3.02M | Buy |
70,800
+1,000
| +1% | +$45K | ﹤0.01% | 1665 |
|
|
2021
Q2 | $2.95M | Buy |
+69,800
| New | +$2.93M | ﹤0.01% | 1688 |
|
|
2021
Q1 | – | Sell |
-370
| Closed | -$1.09M | – | 9366 |
|
|
2020
Q4 | $1.09M | Sell |
370
-291
| -44% | -$8.07K | ﹤0.01% | 2444 |
|
|
2020
Q3 | $1.77M | Sell |
661
-922
| -58% | -$26.2K | ﹤0.01% | 1653 |
|
|
2020
Q2 | $4.13M | Sell |
1,583
-272
| -15% | -$6.87K | 0.01% | 972 |
|
|
2020
Q1 | $4.41M | Buy |
1,855
+1,029
| +125% | +$31.1K | 0.01% | 759 |
|
|
2019
Q4 | $2.63M | Buy |
826
+577
| +232% | +$18.9K | 0.01% | 1252 |
|
|
2019
Q3 | $806K | Sell |
249
-63
| -20% | -$1.98K | ﹤0.01% | 2154 |
|
|
2019
Q2 | $976K | Buy |
312
+196
| +169% | +$6.42K | ﹤0.01% | 1927 |
|
|
2019
Q1 | $411K | Sell |
116
-66
| -36% | -$2.33K | ﹤0.01% | 2863 |
|
|
2018
Q4 | $589K | Sell |
182
-99
| -35% | -$3.25K | ﹤0.01% | 2072 |
|
|
2018
Q3 | $970K | Buy |
281
+152
| +118% | +$5.42K | ﹤0.01% | 1923 |
|
|
2018
Q2 | $451K | Sell |
129
-40
| -24% | -$1.35K | ﹤0.01% | 2561 |
|
|
2018
Q1 | $26K | Buy |
169
+81
| +92% | +$2.73K | ﹤0.01% | 3088 |
|
|
2017
Q4 | $4K | Buy |
88
+68
| +340% | +$2.7K | ﹤0.01% | 4691 |
|
|
2017
Q3 | $1K | Buy |
+20
| New | +$747 | ﹤0.01% | 5459 |
|
|
2017
Q1 | – | Sell |
-79
| Closed | -$17K | – | 6438 |
|
|
2016
Q4 | $17K | Buy |
+79
| New | +$2.63K | ﹤0.01% | 3180 |
|
|
2016
Q2 | – | Sell |
-22
| Closed | -$1K | – | 6102 |
|
|
2016
Q1 | $1K | Sell |
22
-3
| -12% | -$86 | ﹤0.01% | 5120 |
|
|
2015
Q4 | $5K | Sell |
25
-4
| -14% | -$117 | ﹤0.01% | 3873 |
|
|
2015
Q3 | $4K | Sell |
29
-21
| -42% | -$627 | ﹤0.01% | 4163 |
|
|
2015
Q2 | $7K | Buy |
50
+4
| +9% | +$140 | ﹤0.01% | 3376 |
|
|
2015
Q1 | $3K | Sell |
46
-43
| -48% | -$1.66K | ﹤0.01% | 3849 |
|
|
2014
Q4 | $18K | Buy |
+89
| New | +$3.24K | ﹤0.01% | 2138 |
|
Other funds holding IRM
VPM
VCM
Simplex Trading's IRM Position: Q1 2026 in Review
Simplex Trading increased its Iron Mountain (IRM) stake by 528% in Q1 2026, buying an estimated $1.24M and bringing the position to 14,800 shares worth $1.51M. The position accounts for ﹤0.01% of the portfolio, ranked #2074.
Simplex Trading first reported a position in IRM in Q4 2014 and has held it in 14 quarters since. The position peaked at $1.58M in Q4 2022. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.
- Simplex Trading held 14,800 shares of Iron Mountain worth $1.51M as of Q1 2026.
- Simplex Trading bought 12,443 Iron Mountain shares in Q1 2026, an estimated $1.24M.
- Iron Mountain made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #2074 holding.
- Simplex Trading first reported a position in Iron Mountain in Q4 2014 and has held it in 14 quarters since.
- Simplex Trading's Iron Mountain position peaked at $1.58M in Q4 2022.
- 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.
Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.