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Dmitry Balyasny’s Iron Mountain IRM Stock Holding History

Dmitry Balyasny’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 		$852K Sell
6,749
-121,943
-95% -$14.9M ﹤0.01% 2298
2026
Q1 		$13.1M Sell
128,692
-78,117
-38% -$7.77M 0.02% 890
2025
Q4 		$17.2M Buy
206,809
+57,880
+39% +$5.42M 0.02% 796
2025
Q3 		$15.2M Sell
148,929
-239,268
-62% -$23.1M 0.02% 842
2025
Q2 		$39.8M Sell
388,197
-165,351
-30% -$15.6M 0.06% 412
2025
Q1 		$47.6M Buy
553,548
+186,880
+51% +$18M 0.08% 325
2024
Q4 		$38.5M Buy
366,668
+359,614
+5,098% +$42.3M 0.06% 409
2024
Q3 		$838K Sell
7,054
-13,395
-66% -$1.43M ﹤0.01% 2038
2024
Q2 		$1.83M Sell
20,449
-48,626
-70% -$3.94M ﹤0.01% 1566
2024
Q1 		$5.54M Sell
69,075
-156,302
-69% -$11.3M 0.01% 1178
2023
Q4 		$15.8M Sell
225,377
-101,247
-31% -$6.35M 0.03% 696
2023
Q3 		$19.4M Buy
326,624
+310,607
+1,939% +$19M 0.04% 579
2023
Q2 		$910K Buy
16,017
+8,527
+114% +$467K ﹤0.01% 1659
2023
Q1 		$396K Sell
7,490
-17,103
-70% -$896K ﹤0.01% 2017
2022
Q4 		$1.23M Buy
+24,593
New +$1.24M ﹤0.01% 1585
2022
Q3 		– Sell
-453,448
Closed -$22.1M – 3036
2022
Q2 		$22.1M Buy
+453,448
New +$23.9M 0.07% 386
2021
Q3 		– Sell
-37,365
Closed -$1.58M – 2169
2021
Q2 		$1.58M Buy
+37,365
New +$1.57M 0.01% 1093
2020
Q4 		– Sell
-228,076
Closed -$6.11M – 1517
2020
Q3 		$6.11M Buy
+228,076
New +$6.49M 0.04% 537
2019
Q2 		– Sell
-56,577
Closed -$2.01M – 1595
2019
Q1 		$2.01M Buy
+56,577
New +$2M 0.01% 817
2018
Q3 		– Sell
-45,596
Closed -$1.6M – 1845
2018
Q2 		$1.6M Sell
45,596
-68,648
-60% -$2.32M 0.01% 1010
2018
Q1 		$3.75M Buy
114,244
+106,442
+1,364% +$3.59M 0.02% 790
2017
Q4 		$294K Buy
+7,802
New +$310K ﹤0.01% 1745

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

Dmitry Balyasny's IRM Position: Q2 2026 in Review

Dmitry Balyasny reduced its Iron Mountain (IRM) stake by 95% in Q2 2026, selling an estimated $14.9M and leaving 6,749 shares worth $852K. The position accounts for ﹤0.01% of the portfolio, ranked #2298.

Dmitry Balyasny first reported a position in IRM in Q4 2017 and has held it in 22 quarters since. The position peaked at $47.6M in Q1 2025. 1,163 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • Dmitry Balyasny held 6,749 shares of Iron Mountain worth $852K as of Q2 2026.
  • Dmitry Balyasny sold 121,943 Iron Mountain shares in Q2 2026, an estimated $14.9M.
  • Iron Mountain made up ﹤0.01% of Dmitry Balyasny's portfolio in Q2 2026, its #2298 holding.
  • Dmitry Balyasny first reported a position in Iron Mountain in Q4 2017 and has held it in 22 quarters since.
  • Dmitry Balyasny's Iron Mountain position peaked at $47.6M in Q1 2025.
  • 1,163 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on Balyasny Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.