Walleye 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
$2.71M Buy
26,500
+23,900
+919% +$2.38M ﹤0.01% 1510
2025
Q4
$216K Sell
2,600
-7,600
-75% -$711K ﹤0.01% 3349
2025
Q3
$1.04M Sell
10,200
-146,100
-93% -$14.1M ﹤0.01% 2248
2025
Q2
$16M Buy
156,300
+38,300
+32% +$3.61M 0.03% 618
2025
Q1
$10.2M Buy
118,000
+115,200
+4,114% +$11.1M 0.02% 715
2024
Q4
$294K Sell
2,800
-300
-10% -$35.2K ﹤0.01% 2995
2024
Q3
$368K Sell
3,100
-5,500
-64% -$588K ﹤0.01% 2707
2024
Q2
$771K Buy
8,600
+5,800
+207% +$469K ﹤0.01% 2246
2024
Q1
$225K Sell
2,800
-11,400
-80% -$825K ﹤0.01% 3361
2023
Q4
$994K Sell
14,200
-6,900
-33% -$433K ﹤0.01% 2466
2023
Q3
$1.25M Sell
21,100
-16,100
-43% -$984K ﹤0.01% 2176
2023
Q2
$2.11M Sell
37,200
-69,400
-65% -$3.8M 0.01% 1613
2023
Q1
$5.64M Buy
106,600
+26,600
+33% +$1.39M 0.01% 955
2022
Q4
$3.99M Buy
80,000
+50,200
+168% +$2.53M 0.01% 1212
2022
Q3
$1.31M Buy
29,800
+14,800
+99% +$747K ﹤0.01% 2037
2022
Q2
$730K Sell
15,000
-38,100
-72% -$2.01M ﹤0.01% 2528
2022
Q1
$2.94M Buy
53,100
+48,800
+1,135% +$2.32M 0.01% 1372
2021
Q4
$225K Sell
4,300
-32,700
-88% -$1.55M ﹤0.01% 3760
2021
Q3
$1.61M Buy
37,000
+11,700
+46% +$527K 0.01% 1795
2021
Q2
$1.07M Sell
25,300
-16,000
-39% -$671K ﹤0.01% 2070
2021
Q1
$1.53M Buy
41,300
+3,500
+9% +$117K 0.01% 1557
2020
Q4
$1.11M Sell
37,800
-18,800
-33% -$522K ﹤0.01% 1878
2020
Q3
$1.52M Buy
56,600
+14,700
+35% +$418K 0.01% 1327
2020
Q2
$1.09M Buy
41,900
+31,800
+315% +$803K 0.01% 1586
2020
Q1
$240K Sell
10,100
-300
-3% -$9.08K ﹤0.01% 2464
2019
Q4
$331K Sell
10,400
-2,200
-17% -$72.1K ﹤0.01% 2733
2019
Q3
$408K Sell
12,600
-9,900
-44% -$311K ﹤0.01% 2337
2019
Q2
$704K Sell
22,500
-5,900
-21% -$193K 0.01% 1901
2019
Q1
$1.01M Sell
28,400
-51,000
-64% -$1.8M 0.01% 1654
2018
Q4
$2.57M Buy
79,400
+41,300
+108% +$1.35M 0.02% 881
2018
Q3
$1.31M Buy
38,100
+8,300
+28% +$296K 0.01% 1783
2018
Q2
$1.04M Sell
29,800
-28,300
-49% -$956K 0.01% 2056
2018
Q1
$1.91M Buy
58,100
+43,000
+285% +$1.45M 0.01% 1246
2017
Q4
$570 Sell
15,100
-2,600
-15% -$103K ﹤0.01% 2486
2017
Q3
$689 Buy
17,700
+12,300
+228% +$460K ﹤0.01% 2189
2017
Q2
$185 Buy
+5,400
New +$189K ﹤0.01% 3172
2017
Q1
Sell
-3,400
Closed -$111K 4904
2016
Q4
$111K Buy
3,400
+800
+31% +$26.6K ﹤0.01% 3184
2016
Q3
$97K Sell
2,600
-1,600
-38% -$61.7K ﹤0.01% 3314
2016
Q2
$168K Sell
4,200
-27,900
-87% -$1.02M ﹤0.01% 3086
2016
Q1
$1.09M Buy
32,100
+22,400
+231% +$643K 0.01% 1325
2015
Q4
$263K Sell
9,700
-2,100
-18% -$61.6K ﹤0.01% 2455
2015
Q3
$367K Buy
11,800
+2,600
+28% +$77.6K ﹤0.01% 1802
2015
Q2
$286K Buy
9,200
+6,700
+268% +$235K ﹤0.01% 2158
2015
Q1
$91K Sell
2,500
-1,800
-42% -$69.5K ﹤0.01% 2714
2014
Q4
$166K Sell
4,300
-68,530
-94% -$2.49M ﹤0.01% 2419
2014
Q3
$2.38M Buy
72,830
+6,071
+9% +$197K 0.03% 362
2014
Q2
$2.19K Buy
66,759
+16,879
+34% +$458K 0.03% 380
2014
Q1
$1.27K Buy
49,880
+1,839
+4% +$47K 0.02% 711
2013
Q4
$1.35M Buy
48,041
+41,224
+605% +$1.06M 0.01% 897
2013
Q3
$171K Sell
6,817
-18,935
-74% -$481K ﹤0.01% 1770
2013
Q2
$634K Buy
+25,752
New +$831K 0.01% 1117

Other funds holding IRM

Walleye Trading's IRM Position: Q1 2026 in Review

Walleye Trading opened a new position in Iron Mountain (IRM) in Q1 2026: 12,980 shares worth $1.33M. The stake represents ﹤0.01% of the portfolio and ranks #1966 among its holdings. This is a return to the name: Walleye Trading previously reported a position in IRM as recently as Q3 2025.

Walleye Trading first reported a position in IRM in Q3 2013 and has held it in 19 quarters since. The position peaked at $2.93M in Q4 2022. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • Walleye Trading held 12,980 shares of Iron Mountain worth $1.33M as of Q1 2026.
  • Iron Mountain was a new Walleye Trading position in Q1 2026.
  • Iron Mountain made up ﹤0.01% of Walleye Trading's portfolio in Q1 2026, its #1966 holding.
  • Walleye Trading first reported a position in Iron Mountain in Q3 2013 and has held it in 19 quarters since.
  • Walleye Trading's Iron Mountain position peaked at $2.93M in Q4 2022.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.