Tudor Investment Corp’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
Q2 | $9.52M | Buy |
75,389
+38,181
| +103% | +$4.68M | 0.01% | 851 |
|
|
2026
Q1 | $3.8M | Buy |
37,208
+15,018
| +68% | +$1.49M | 0.01% | 1361 |
|
|
2025
Q4 | $1.84M | Buy |
+22,190
| New | +$2.08M | ﹤0.01% | 1863 |
|
|
2025
Q3 | – | Sell |
-29,141
| Closed | -$2.81M | – | 3606 |
|
|
2025
Q2 | $2.99M | Sell |
29,141
-20,968
| -42% | -$1.98M | 0.01% | 1393 |
|
|
2025
Q1 | $4.31M | Buy |
+50,109
| New | +$4.83M | 0.01% | 850 |
|
|
2024
Q4 | – | Sell |
-100,000
| Closed | -$11.7M | – | 3259 |
|
|
2024
Q3 | $11.9M | Buy |
+100,000
| New | +$10.7M | 0.04% | 343 |
|
|
2023
Q3 | – | Sell |
-4,008
| Closed | -$245K | – | 2563 |
|
|
2023
Q2 | $228K | Buy |
+4,008
| New | +$219K | ﹤0.01% | 2158 |
|
|
2023
Q1 | – | Sell |
-11,442
| Closed | -$570K | – | 2677 |
|
|
2022
Q4 | $570K | Buy |
11,442
+279
| +2% | +$14.1K | 0.01% | 1493 |
|
|
2022
Q3 | $491K | Buy |
+11,163
| New | +$564K | 0.01% | 1411 |
|
|
2021
Q4 | – | Sell |
-136,100
| Closed | -$5.91M | – | 2702 |
|
|
2021
Q3 | $5.91M | Buy |
136,100
+100,444
| +282% | +$4.52M | 0.1% | 220 |
|
|
2021
Q2 | $1.51M | Buy |
+35,656
| New | +$1.5M | 0.03% | 678 |
|
|
2021
Q1 | – | Sell |
-206,105
| Closed | -$6.08M | – | 1710 |
|
|
2020
Q4 | $6.08M | Buy |
206,105
+43,684
| +27% | +$1.21M | 0.17% | 94 |
|
|
2020
Q3 | $4.35M | Buy |
162,421
+135,167
| +496% | +$3.85M | 0.19% | 88 |
|
|
2020
Q2 | $711K | Buy |
+27,254
| New | +$688K | 0.04% | 602 |
|
|
2020
Q1 | – | Sell |
-9,089
| Closed | -$290K | – | 1186 |
|
|
2019
Q4 | $290K | Sell |
9,089
-8,238
| -48% | -$270K | 0.01% | 887 |
|
|
2019
Q3 | $561K | Buy |
+17,327
| New | +$544K | 0.02% | 685 |
|
|
2019
Q2 | – | Sell |
-67,598
| Closed | -$2.4M | – | 1212 |
|
|
2019
Q1 | $2.4M | Buy |
+67,598
| New | +$2.39M | 0.1% | 228 |
|
|
2018
Q4 | – | Sell |
-14,396
| Closed | -$497K | – | 1123 |
|
|
2018
Q3 | $497K | Buy |
14,396
+4,635
| +47% | +$165K | 0.01% | 690 |
|
|
2018
Q2 | $342K | Sell |
9,761
-8,327
| -46% | -$281K | 0.01% | 779 |
|
|
2018
Q1 | $594K | Buy |
18,088
+501
| +3% | +$16.9K | 0.02% | 502 |
|
|
2017
Q4 | $664K | Buy |
+17,587
| New | +$698K | 0.02% | 487 |
|
|
2014
Q4 | – | Sell |
-214,027
| Closed | -$6.99M | – | 1525 |
|
|
2014
Q3 | $6.99M | Buy |
+214,027
| New | +$6.94M | 0.25% | 56 |
|
|
2013
Q3 | – | Sell |
-33,867
| Closed | -$833K | – | 882 |
|
|
2013
Q2 | $833K | Buy |
+33,867
| New | +$1.09M | 0.06% | 155 |
|
Other funds holding IRM
Tudor Investment Corp's IRM Position: Q2 2026 in Review
Tudor Investment Corp increased its Iron Mountain (IRM) stake by 103% in Q2 2026, buying an estimated $4.68M and bringing the position to 75,389 shares worth $9.52M. The position accounts for 0.01% of the portfolio, ranked #851.
Tudor Investment Corp first reported a position in IRM in Q2 2013 and has held it in 23 quarters since. The position peaked at $11.9M in Q3 2024. 1,163 funds tracked by Wall St. Rank hold IRM as of Q2 2026.
- Tudor Investment Corp held 75,389 shares of Iron Mountain worth $9.52M as of Q2 2026.
- Tudor Investment Corp bought 38,181 Iron Mountain shares in Q2 2026, an estimated $4.68M.
- Iron Mountain made up 0.01% of Tudor Investment Corp's portfolio in Q2 2026, its #851 holding.
- Tudor Investment Corp first reported a position in Iron Mountain in Q2 2013 and has held it in 23 quarters since.
- Tudor Investment Corp's Iron Mountain position peaked at $11.9M in Q3 2024.
- 1,163 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.
Based on Tudor Investment Corp's 13F filing for Q2 2026, filed 14 Aug 2026.