WorldQuant Millennium Advisors
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WorldQuant Millennium Advisors’s Iron Mountain IRM Stock Holding History

WorldQuant Millennium Advisors’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
Q1 		$56M Buy
548,049
+392,013
+251% +$39M 0.22% 122
2025
Q4 		$12.9M Sell
156,036
-74,876
-32% -$7.01M 0.05% 249
2025
Q3 		$23.5M Sell
230,912
-37,245
-14% -$3.59M 0.1% 191
2025
Q2 		$27.5M Buy
268,157
+7,176
+3% +$676K 0.14% 175
2025
Q1 		$22.5M Buy
+260,981
New +$25.1M 0.14% 166
2024
Q4 		– Sell
-193,747
Closed -$23M – 472
2024
Q3 		$23M Buy
193,747
+189,380
+4,337% +$20.3M 0.17% 159
2024
Q2 		$391K Buy
+4,367
New +$353K ﹤0.01% 383
2021
Q4 		– Sell
-34,982
Closed -$1.52M – 348
2021
Q3 		$1.52M Sell
34,982
-59,047
-63% -$2.66M 0.03% 262
2021
Q2 		$3.98M Hold
94,029
– – 0.09% 218
2021
Q1 		$3.48M Hold
94,029
– – 0.07% 266
2020
Q4 		$2.77M Hold
94,029
– – 0.06% 282
2020
Q3 		$2.52M Hold
94,029
– – 0.06% 270
2020
Q2 		$2.45M Sell
94,029
-54,459
-37% -$1.38M 0.06% 283
2020
Q1 		$3.53M Buy
148,488
+6,762
+5% +$205K 0.09% 232
2019
Q4 		$4.52M Sell
141,726
-10,121
-7% -$332K 0.09% 225
2019
Q3 		$4.92M Sell
151,847
-6,589
-4% -$207K 0.1% 206
2019
Q2 		$4.96M Buy
158,436
+24,101
+18% +$790K 0.09% 184
2019
Q1 		$4.76M Buy
134,335
+7,381
+6% +$261K 0.11% 179
2018
Q4 		$4.12M Buy
126,954
+27,242
+27% +$894K 0.12% 180
2018
Q3 		$3.44M Buy
99,712
+4,891
+5% +$174K 0.12% 180
2018
Q2 		$3.32M Buy
+94,821
New +$3.2M 0.13% 173

Other funds holding IRM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $57.6B AUM 8.03% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

WorldQuant Millennium Advisors's IRM Position: Q1 2026 in Review

WorldQuant Millennium Advisors increased its Iron Mountain (IRM) stake by 251% in Q1 2026, buying an estimated $39M and bringing the position to 548,049 shares worth $56M. The position accounts for 0.22% of the portfolio, ranked #122.

WorldQuant Millennium Advisors first reported a position in IRM in Q2 2018 and has held it in 21 quarters since. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • WorldQuant Millennium Advisors held 548,049 shares of Iron Mountain worth $56M as of Q1 2026.
  • WorldQuant Millennium Advisors bought 392,013 Iron Mountain shares in Q1 2026, an estimated $39M.
  • Iron Mountain made up 0.22% of WorldQuant Millennium Advisors's portfolio in Q1 2026, its #122 holding.
  • WorldQuant Millennium Advisors first reported a position in Iron Mountain in Q2 2018 and has held it in 21 quarters since.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on WorldQuant Millennium Advisors's 13F filing for Q1 2026, filed 15 May 2026.