Walleye Trading
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Walleye Trading’s Iron Mountain IRM Stock Holding History

Walleye Trading’s Portfolio IRM Stock Details IRM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$499K Sell
3,949
-9,031
-70% -$1.11M ﹤0.01% 2686
2026
Q1 		$1.33M Buy
+12,980
New +$1.29M ﹤0.01% 1966
2025
Q4 		– Sell
-2,305
Closed -$216K – 4586
2025
Q3 		$235K Sell
2,305
-12,980
-85% -$1.25M ﹤0.01% 3259
2025
Q2 		$1.57M Buy
+15,285
New +$1.44M ﹤0.01% 1892
2024
Q4 		– Sell
-9,152
Closed -$1.08M – 4442
2024
Q3 		$1.09M Buy
+9,152
New +$979K ﹤0.01% 2035
2024
Q1 		– Sell
-15,244
Closed -$1.1M – 5043
2023
Q4 		$1.07M Buy
15,244
+4,046
+36% +$254K ﹤0.01% 2414
2023
Q3 		$666K Sell
11,198
-92
-0.8% -$5.62K ﹤0.01% 2711
2023
Q2 		$641K Sell
11,290
-13,839
-55% -$758K ﹤0.01% 2548
2023
Q1 		$1.33M Sell
25,129
-33,682
-57% -$1.77M ﹤0.01% 1994
2022
Q4 		$2.93M Buy
+58,811
New +$2.97M 0.01% 1419
2019
Q1 		– Sell
-2,716
Closed -$95.9K – 4466
2018
Q4 		$88K Buy
+2,716
New +$89.1K ﹤0.01% 3949
2018
Q2 		– Sell
-9,725
Closed -$328K – 4723
2018
Q1 		$320K Sell
9,725
-17,368
-64% -$585K ﹤0.01% 3083
2017
Q4 		$1.02M Buy
27,093
+21,002
+345% +$833K 0.01% 1909
2017
Q3 		$237K Buy
+6,091
New +$228K ﹤0.01% 3108
2015
Q3 		– Sell
-5,005
Closed -$149K – 5227
2015
Q2 		$155K Sell
5,005
-3,179
-39% -$111K ﹤0.01% 2689
2015
Q1 		$299K Buy
8,184
+5,986
+272% +$231K ﹤0.01% 1889
2014
Q4 		$85K Sell
2,198
-8,854
-80% -$322K ﹤0.01% 2915
2014
Q3 		$361K Buy
+11,052
New +$358K ﹤0.01% 1598
2014
Q1 		– Sell
-12,983
Closed -$332K – 3712
2013
Q4 		$364K Buy
12,983
+8,771
+208% +$225K ﹤0.01% 1779
2013
Q3 		$105K Buy
+4,212
New +$107K ﹤0.01% 1962

Other funds holding IRM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $63.2B AUM 17.15% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

Walleye Trading's IRM Position: Q2 2026 in Review

Walleye Trading reduced its Iron Mountain (IRM) stake by 70% in Q2 2026, selling an estimated $1.11M and leaving 3,949 shares worth $499K. The position accounts for ﹤0.01% of the portfolio, ranked #2686.

Walleye Trading first reported a position in IRM in Q3 2013 and has held it in 20 quarters since. The position peaked at $2.93M in Q4 2022. 1,171 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • Walleye Trading held 3,949 shares of Iron Mountain worth $499K as of Q2 2026.
  • Walleye Trading sold 9,031 Iron Mountain shares in Q2 2026, an estimated $1.11M.
  • Iron Mountain made up ﹤0.01% of Walleye Trading's portfolio in Q2 2026, its #2686 holding.
  • Walleye Trading first reported a position in Iron Mountain in Q3 2013 and has held it in 20 quarters since.
  • Walleye Trading's Iron Mountain position peaked at $2.93M in Q4 2022.
  • 1,171 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on Walleye Trading's 13F filing for Q2 2026, filed 3 Aug 2026.