New York State Teachers Retirement System (NYSTRS)
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New York State Teachers Retirement System (NYSTRS)’s Iron Mountain IRM Stock Holding History

New York State Teachers Retirement System (NYSTRS)’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 		$28.2M Sell
222,876
-5,000
-2% -$613K 0.05% 273
2026
Q1 		$23.3M Hold
227,876
– – 0.05% 314
2025
Q4 		$18.9M Buy
227,876
+6
+0% +$562 0.04% 354
2025
Q3 		$23.2M Sell
227,870
-55
-0% -$5.3K 0.05% 306
2025
Q2 		$23.4M Buy
227,925
+186
+0.1% +$17.5K 0.05% 291
2025
Q1 		$19.6M Sell
227,739
-24,892
-10% -$2.4M 0.05% 322
2024
Q4 		$26.6M Sell
252,631
-8,557
-3% -$1.01M 0.06% 274
2024
Q3 		$31M Sell
261,188
-6,866
-3% -$734K 0.06% 258
2024
Q2 		$24M Sell
268,054
-19,545
-7% -$1.58M 0.05% 299
2024
Q1 		$23.1M Sell
287,599
-8,985
-3% -$650K 0.05% 322
2023
Q4 		$20.8M Sell
296,584
-19,511
-6% -$1.22M 0.05% 328
2023
Q3 		$18.8M Sell
316,095
-3,155
-1% -$193K 0.05% 337
2023
Q2 		$18.1M Sell
319,250
-3,768
-1% -$206K 0.04% 362
2023
Q1 		$17.1M Sell
323,018
-15,622
-5% -$819K 0.04% 385
2022
Q4 		$16.9M Sell
338,640
-2,238
-0.7% -$113K 0.04% 379
2022
Q3 		$15M Sell
340,878
-92
-0% -$4.65K 0.04% 391
2022
Q2 		$16.6M Buy
340,970
+1,925
+0.6% +$101K 0.04% 377
2022
Q1 		$18.8M Buy
339,045
+1,667
+0.5% +$79.4K 0.04% 388
2021
Q4 		$17.7M Sell
337,378
-22,455
-6% -$1.06M 0.03% 415
2021
Q3 		$15.6M Buy
359,833
+25,571
+8% +$1.15M 0.03% 433
2021
Q2 		$14.1M Sell
334,262
-43,344
-11% -$1.82M 0.03% 450
2021
Q1 		$14M Buy
377,606
+22,011
+6% +$736K 0.03% 460
2020
Q4 		$10.5M Buy
355,595
+3,602
+1% +$99.9K 0.02% 508
2020
Q3 		$9.43M Buy
351,993
+16
+0% +$455 0.02% 488
2020
Q2 		$9.19M Buy
351,977
+46
+0% +$1.16K 0.02% 494
2020
Q1 		$8.38M Buy
351,931
+13,100
+4% +$396K 0.03% 477
2019
Q4 		$10.8M Buy
338,831
+4,202
+1% +$138K 0.03% 524
2019
Q3 		$10.8M Buy
334,629
+14
+0% +$440 0.03% 502
2019
Q2 		$10.5M Sell
334,615
-27,668
-8% -$907K 0.03% 519
2019
Q1 		$12.8M Buy
362,283
+27,709
+8% +$979K 0.03% 457
2018
Q4 		$10.8M Buy
334,574
+5
+0% +$164 0.03% 475
2018
Q3 		$11.5M Buy
334,569
+292
+0.1% +$10.4K 0.03% 509
2018
Q2 		$11.7M Hold
334,277
– – 0.03% 501
2018
Q1 		$11M Hold
334,277
– – 0.03% 531
2017
Q4 		$12.6M Buy
334,277
+1,057
+0.3% +$41.9K 0.03% 504
2017
Q3 		$13M Buy
333,220
+1,163
+0.4% +$43.5K 0.03% 484
2017
Q2 		$11.4M Buy
332,057
+23
+0% +$805 0.03% 510
2017
Q1 		$11.8M Buy
332,034
+16
+0% +$567 0.03% 502
2016
Q4 		$10.8M Sell
332,018
-7,482
-2% -$249K 0.03% 526
2016
Q3 		$12.7M Sell
339,500
-4,595
-1% -$177K 0.03% 470
2016
Q2 		$13.7M Buy
344,095
+4,375
+1% +$159K 0.04% 455
2016
Q1 		$11.5M Sell
339,720
-3,070
-0.9% -$88.2K 0.03% 498
2015
Q4 		$9.26M Sell
342,790
-772
-0.2% -$22.6K 0.02% 551
2015
Q3 		$10.7M Buy
343,562
+419
+0.1% +$12.5K 0.03% 504
2015
Q2 		$10.6M Buy
343,143
+40
+0% +$1.4K 0.03% 528
2015
Q1 		$12.5M Buy
343,103
+648
+0.2% +$25K 0.03% 495
2014
Q4 		$13.2M Buy
342,455
+38,712
+13% +$1.41M 0.03% 481
2014
Q3 		$9.92M Sell
303,743
-24,802
-8% -$804K 0.03% 555
2014
Q2 		$10.8M Sell
328,545
-9,983
-3% -$271K 0.03% 541
2014
Q1 		$8.63M Sell
338,528
-13,995
-4% -$358K 0.02% 612
2013
Q4 		$9.89M Sell
352,523
-13,839
-4% -$355K 0.03% 568
2013
Q3 		$9.15M Sell
366,362
-6,812
-2% -$173K 0.03% 578
2013
Q2 		$9.18M Buy
+373,174
New +$12M 0.03% 547

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 $3.38T AUM 44.17% 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

New York State Teachers Retirement System (NYSTRS)'s IRM Position: Q2 2026 in Review

New York State Teachers Retirement System (NYSTRS) reduced its Iron Mountain (IRM) stake by 2.2% in Q2 2026, selling an estimated $613K and leaving 222,876 shares worth $28.2M. The position accounts for 0.05% of the portfolio, ranked #273.

New York State Teachers Retirement System (NYSTRS) first reported a position in IRM in Q2 2013 and has held it in 53 quarters since. The position peaked at $31M in Q3 2024. 1,174 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • New York State Teachers Retirement System (NYSTRS) held 222,876 shares of Iron Mountain worth $28.2M as of Q2 2026.
  • New York State Teachers Retirement System (NYSTRS) sold 5,000 Iron Mountain shares in Q2 2026, an estimated $613K.
  • Iron Mountain made up 0.05% of New York State Teachers Retirement System (NYSTRS)'s portfolio in Q2 2026, its #273 holding.
  • New York State Teachers Retirement System (NYSTRS) first reported a position in Iron Mountain in Q2 2013 and has held it in 53 quarters since.
  • New York State Teachers Retirement System (NYSTRS)'s Iron Mountain position peaked at $31M in Q3 2024.
  • 1,174 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on New York State Teachers Retirement System (NYSTRS)'s 13F filing for Q2 2026, filed 23 Jul 2026.