GI
IRM icon

GAMMA Investing’s Iron Mountain IRM Stock Holding History

GAMMA Investing’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
Q3 		$883K Buy
7,955
+239
+3% +$28.6K 0.03% 473
2026
Q2 		$975K Buy
7,716
+1,095
+17% +$134K 0.04% 405
2026
Q1 		$676K Buy
6,621
+2,091
+46% +$208K 0.03% 464
2025
Q4 		$376K Sell
4,530
-1,967
-30% -$184K 0.02% 656
2025
Q3 		$662K Buy
6,497
+1,021
+19% +$98.4K 0.04% 421
2025
Q2 		$562K Buy
5,476
+1,504
+38% +$142K 0.04% 438
2025
Q1 		$342K Sell
3,972
-357
-8% -$34.4K 0.03% 545
2024
Q4 		$455K Buy
4,329
+535
+14% +$62.9K 0.04% 386
2024
Q3 		$451K Buy
3,794
+815
+27% +$87.2K 0.04% 359
2024
Q2 		$267K Buy
2,979
+1,173
+65% +$94.9K 0.04% 416
2024
Q1 		$145K Buy
1,806
+247
+16% +$17.9K 0.03% 496
2023
Q4 		$105K Buy
+1,559
New +$97.8K 0.03% 528

Other funds holding IRM

BTCPP
Border to Coast Pensions Partnership Leeds, United Kingdom $7.27B AUM 24.98% 1-Year Est. Return
WAM
Werlinich Asset Management Stamford, Connecticut $258M AUM 64.99% 1-Year Est. Return
PDN
Pensionfund DSM Netherlands Sittard, Netherlands $170M AUM 7.16% 1-Year Est. Return
GI
Gradient Investments Arden Hills, Minnesota $7B AUM 14.85% 1-Year Est. Return
PS
Pensionfund Sabic Sittard, Netherlands $82.9M AUM 10.69% 1-Year Est. Return
VVP
Venture Visionary Partners Sylvania, Ohio $3.82B AUM 21.33% 1-Year Est. Return
FFA
Farther Finance Advisors San Francisco, California $14.2B AUM 18.33% 1-Year Est. Return
KIG
Kessler Investment Group Columbus, Indiana $207M AUM 43.85% 1-Year Est. Return
MNBTD
Moody National Bank Trust Division Galveston, Texas $1.21B AUM 28.25% 1-Year Est. Return
AP
Atwood & Palmer Kansas City, Missouri $1.95B AUM 16% 1-Year Est. Return

GAMMA Investing's IRM Position: Q3 2026 in Review

GAMMA Investing increased its Iron Mountain (IRM) stake by 3.1% in Q3 2026, buying an estimated $28.6K and bringing the position to 7,955 shares worth $883K. The position accounts for 0.03% of the portfolio, ranked #473.

GAMMA Investing first reported a position in IRM in Q4 2023 and has held it in 12 quarters since. The position peaked at $975K in Q2 2026. 45 funds tracked by Wall St. Rank hold IRM as of Q3 2026.

  • GAMMA Investing held 7,955 shares of Iron Mountain worth $883K as of Q3 2026.
  • GAMMA Investing bought 239 Iron Mountain shares in Q3 2026, an estimated $28.6K.
  • Iron Mountain made up 0.03% of GAMMA Investing's portfolio in Q3 2026, its #473 holding.
  • GAMMA Investing first reported a position in Iron Mountain in Q4 2023 and has held it in 12 quarters since.
  • GAMMA Investing's Iron Mountain position peaked at $975K in Q2 2026.
  • 45 funds tracked by Wall St. Rank held Iron Mountain as of Q3 2026.

Based on GAMMA Investing's 13F filing for Q3 2026, filed 8 Oct 2026.