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MassMutual Private Wealth & Trust’s Iron Mountain IRM Stock Holding History

MassMutual Private Wealth & Trust’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 		$940K Sell
7,439
-50
-0.7% -$6.13K 0.02% 261
2026
Q1 		$765K Sell
7,489
-159
-2% -$15.8K 0.02% 268
2025
Q4 		$634K Buy
7,648
+225
+3% +$21.1K 0.02% 285
2025
Q3 		$757K Sell
7,423
-11
-0.1% -$1.06K 0.02% 275
2025
Q2 		$763K Buy
7,434
+356
+5% +$33.6K 0.02% 279
2025
Q1 		$609K Buy
7,078
+142
+2% +$13.7K 0.02% 302
2024
Q4 		$729K Buy
6,936
+5,541
+397% +$651K 0.02% 279
2024
Q3 		$166K Buy
1,395
+48
+4% +$5.13K ﹤0.01% 434
2024
Q2 		$121K Buy
1,347
+120
+10% +$9.71K ﹤0.01% 482
2024
Q1 		$98.4K Buy
1,227
+56
+5% +$4.05K ﹤0.01% 478
2023
Q4 		$81.9K Buy
1,171
+171
+17% +$10.7K ﹤0.01% 501
2023
Q3 		$59.5K Sell
1,000
-221
-18% -$13.5K ﹤0.01% 545
2023
Q2 		$69.4K Buy
1,221
+255
+26% +$14K ﹤0.01% 494
2023
Q1 		$51.1K Buy
966
+213
+28% +$11.2K ﹤0.01% 520
2022
Q4 		$38K Sell
753
-84
-10% -$4.24K ﹤0.01% 517
2022
Q3 		$37K Buy
837
+215
+35% +$10.9K ﹤0.01% 497
2022
Q2 		$30K Buy
622
+21
+3% +$1.1K ﹤0.01% 517
2022
Q1 		$33K Sell
601
-4
-0.7% -$191 ﹤0.01% 512
2021
Q4 		$32K Buy
605
+18
+3% +$851 ﹤0.01% 532
2021
Q3 		$26K Buy
587
+3
+0.5% +$135 ﹤0.01% 554
2021
Q2 		$25K Buy
584
+64
+12% +$2.68K ﹤0.01% 550
2021
Q1 		$19K Sell
520
-23
-4% -$769 ﹤0.01% 529
2020
Q4 		$16K Buy
543
+43
+9% +$1.19K ﹤0.01% 552
2020
Q3 		$13K Hold
500
– – ﹤0.01% 550
2020
Q2 		$13K Hold
500
– – ﹤0.01% 519
2020
Q1 		$12K Hold
500
– – ﹤0.01% 501
2019
Q4 		$16K Hold
500
– – ﹤0.01% 554
2019
Q3 		$16K Hold
500
– – ﹤0.01% 536
2019
Q2 		$16K Hold
500
– – ﹤0.01% 525
2019
Q1 		$17.7K Hold
500
– – ﹤0.01% 522
2018
Q4 		$16.2K Hold
500
– – ﹤0.01% 509
2018
Q3 		$17.3K Hold
500
– – ﹤0.01% 528
2018
Q2 		$17.5K Sell
500
-64
-11% -$2.16K ﹤0.01% 519
2018
Q1 		$18.5K Hold
564
– – ﹤0.01% 512
2017
Q4 		$21.3K Buy
+564
New +$22.4K ﹤0.01% 533
2016
Q2 		$19.9K Hold
500
– – ﹤0.01% 456
2016
Q1 		$17K Hold
500
– – ﹤0.01% 466
2015
Q4 		$13.5K Sell
500
-700
-58% -$20.5K ﹤0.01% 450
2015
Q3 		$39.2K Hold
1,200
– – 0.01% 396
2015
Q2 		$42.5K Sell
1,200
-86
-7% -$3.01K 0.01% 373
2015
Q1 		$46.9K Hold
1,286
– – 0.01% 363
2014
Q4 		$49.7K Buy
1,286
+86
+7% +$3.13K 0.02% 261
2014
Q3 		$39.2K Sell
1,200
-98
-8% -$3.18K 0.01% 387
2014
Q2 		$42.5K Hold
1,298
– – 0.02% 237
2014
Q1 		$33.1K Hold
1,298
– – 0.02% 232
2013
Q4 		$36.4K Buy
+1,298
New +$33.3K 0.03% 204

Other funds holding IRM

Daiwa Securities Group
Daiwa Securities Group Tokyo, Japan $51.1B AUM 35.55% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
WF
Welch & Forbes Boston, Massachusetts $8.23B AUM 17.62% 1-Year Est. Return
Asset Management One
Asset Management One Tokyo, Japan $39B AUM 37.51% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
COPPSERS
Commonwealth of Pennsylvania Public School Employees Retirement System Harrisburg, Pennsylvania $20.6B AUM 37.37% 1-Year Est. Return
BTCPP
Border to Coast Pensions Partnership Leeds, United Kingdom $6.78B AUM 31.6% 1-Year Est. Return

MassMutual Private Wealth & Trust's IRM Position: Q2 2026 in Review

MassMutual Private Wealth & Trust reduced its Iron Mountain (IRM) stake by 0.67% in Q2 2026, selling an estimated $6.13K and leaving 7,439 shares worth $940K. The position accounts for 0.02% of the portfolio, ranked #261.

MassMutual Private Wealth & Trust first reported a position in IRM in Q4 2013 and has held it in 46 quarters since. 450 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • MassMutual Private Wealth & Trust held 7,439 shares of Iron Mountain worth $940K as of Q2 2026.
  • MassMutual Private Wealth & Trust sold 50 Iron Mountain shares in Q2 2026, an estimated $6.13K.
  • Iron Mountain made up 0.02% of MassMutual Private Wealth & Trust's portfolio in Q2 2026, its #261 holding.
  • MassMutual Private Wealth & Trust first reported a position in Iron Mountain in Q4 2013 and has held it in 46 quarters since.
  • 450 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on MassMutual Private Wealth & Trust's 13F filing for Q2 2026, filed 2 Jul 2026.