Group One Trading
IRM icon

Group One Trading’s Iron Mountain IRM Stock Holding History

Group One 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 		$541K Sell
4,281
-870
-17% -$107K ﹤0.01% 3426
2026
Q1 		$526K Sell
5,151
-1,143
-18% -$114K ﹤0.01% 3295
2025
Q4 		$522K Sell
6,294
-3,189
-34% -$298K ﹤0.01% 3469
2025
Q3 		$967K Buy
9,483
+2,940
+45% +$283K ﹤0.01% 3071
2025
Q2 		$671K Buy
+6,543
New +$617K ﹤0.01% 3128
2024
Q1 		– Sell
-1,037
Closed -$75.1K – 7474
2023
Q4 		$72.6K Buy
+1,037
New +$65.1K ﹤0.01% 4745
2022
Q2 		– Sell
-7,835
Closed -$412K – 8139
2022
Q1 		$434K Buy
7,835
+7,133
+1,016% +$340K ﹤0.01% 3970
2021
Q4 		$37K Buy
+702
New +$33.2K ﹤0.01% 6548
2019
Q1 		– Sell
-4,478
Closed -$158K – 5066
2018
Q4 		$145K Buy
+4,478
New +$147K ﹤0.01% 2923
2018
Q1 		– Sell
-2,532
Closed -$85.3K – 5056
2017
Q4 		$96K Buy
+2,532
New +$100K ﹤0.01% 3382
2017
Q1 		– Sell
-1,833
Closed -$64.9K – 4805
2016
Q4 		$60K Buy
+1,833
New +$60.9K ﹤0.01% 3155
2015
Q4 		– Sell
-2,781
Closed -$81.6K – 4895
2015
Q3 		$86K Sell
2,781
-4,931
-64% -$147K ﹤0.01% 3146
2015
Q2 		$239K Buy
+7,712
New +$270K ﹤0.01% 2393
2014
Q3 		– Sell
-201,597
Closed -$6.54M – 5292
2014
Q2 		$6.61M Buy
201,597
+22,622
+13% +$614K 0.1% 209
2014
Q1 		$4.56M Buy
178,975
+80,293
+81% +$2.05M 0.08% 259
2013
Q4 		$2.77M Buy
98,682
+92,352
+1,459% +$2.37M 0.04% 474
2013
Q3 		$158K Buy
+6,330
New +$161K ﹤0.01% 2595

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

Group One Trading's IRM Position: Q2 2026 in Review

Group One Trading reduced its Iron Mountain (IRM) stake by 17% in Q2 2026, selling an estimated $107K and leaving 4,281 shares worth $541K. The position accounts for ﹤0.01% of the portfolio, ranked #3426.

Group One Trading first reported a position in IRM in Q3 2013 and has held it in 17 quarters since. The position peaked at $6.61M in Q2 2014. 1,170 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • Group One Trading held 4,281 shares of Iron Mountain worth $541K as of Q2 2026.
  • Group One Trading sold 870 Iron Mountain shares in Q2 2026, an estimated $107K.
  • Iron Mountain made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #3426 holding.
  • Group One Trading first reported a position in Iron Mountain in Q3 2013 and has held it in 17 quarters since.
  • Group One Trading's Iron Mountain position peaked at $6.61M in Q2 2014.
  • 1,170 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.