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Which hedge funds own IRM? IRON MTN INC DEL, Q2 2026 13F holders

Real EstateREIT - Specialty

47 tracked hedge funds disclosed a position in IRM (IRON MTN INC DEL) in their Q2 2026 13F filings, worth $891.1m in total. The largest holder by portfolio weight is Contour Asset Management LLC at 3.8% of its book. 12 opened a new position this quarter: Gillson Capital LP, Summit Partners Public Asset Management, LLC, Dockside LLC, Voloridge Investment Management, LLC. 15 exited: TradeLink Capital LLC, SG Capital Management LLC, Anson Funds Management LP.

47
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
12
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
15
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$122m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$64.7m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$891m
Combined value
Sum of the holders' reported positions in the security.
3.8%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

47 rows
Contour Asset Management LLC Hedge fund3.8%$161m1.27m−12%reduced
LDR Capital Management LLC Hedge fund1.5%$1.3m10,505−15%reduced
Intrinsic Edge Capital Management LLC Hedge fund1.3%$10.7m84,515−31%reduced
Gillson Capital LP Hedge fund1.0%$17.4m137,932–new
Summit Partners Public Asset Management, LLC Hedge fund0.8%$29.8m235,567–new
APG Asset Management US Inc. Hedge fund0.6%$85.8m703,9120.0%held
Dockside LLC Hedge fund0.4%$1.6m12,932–new
Bayforest Capital Ltd Hedge fund0.3%$364k2,882+16%added
Boothbay Fund Management, LLC Hedge fund0.3%$15.8m125,307−11%reduced
Voloridge Investment Management, LLC Hedge fund0.2%$52.1m412,748–new
Cinctive Capital Management LP Hedge fund0.2%$5.3m42,348–new
GRS Advisors, LLC Hedge fund0.2%$2.4m19,2310.0%held
EntryPoint Capital, LLC Hedge fund0.2%$675k5,341−32%reduced
AlphaGrep UK Ltd Hedge fund0.2%$522k4,136−10%reduced
Machina Capital S.A.S. Hedge fund0.2%$986k7,807+32%added
Entropy Technologies, LP Hedge fund0.1%$2.9m23,082−13%reduced
Kintegral Advisory, LLC Hedge fund0.1%$1.4m11,0380.0%held
Fox Run Management, L.L.C. Hedge fund0.10%$603k4,774−68%reduced
IFM Investors Pty Ltd Hedge fund0.10%$14.4m113,862+7.8%added
Adage Capital Partners GP, L.L.C. Hedge fund0.09%$67.6m535,152−9.3%reduced
AQR Capital Management LLC Hedge fund0.09%$267m2.13m+15%added
Edgestream Partners, L.P. Hedge fund0.07%$2.4m19,236−4.1%reduced
FJ Capital Management LLC Hedge fund0.06%$482k3,814–new
Tudor Investment Corp ET AL Hedge fund0.04%$9.5m75,389+103%added
Campbell & CO Investment Adviser LLC Hedge fund0.04%$748k5,925−31%reduced
Walleye Capital LLC Hedge fund0.04%$7.9m62,613−48%reduced
Candriam S.C.A. Hedge fund0.03%$6.6m52,275−2.9%reduced
Schonfeld Strategic Advisors LLC Hedge fund0.03%$5.0m39,438−84%reduced
Horizon Kinetics (Murray Stahl) Long-only investor0.03%$2.3m17,845−3.0%reduced
Wolverine Asset Management LLC Hedge fund0.03%$1.9m15,432−14%reduced
Woodline Partners LP Hedge fund0.03%$8.2m64,861+12%added
Citadel Advisors LLC Hedge fund0.02%$43.3m343,168−8.5%reduced
Point72 Asset Management, L.P. Hedge fund0.02%$15.6m123,262−67%reduced
Gsa Capital Partners LLP Hedge fund0.02%$267k2,116–new
Millennium Management LLC Hedge fund0.01%$19.8m157,057−58%reduced
Engineers Gate Manager LP Hedge fund0.01%$709k5,614−92%reduced
D. E. Shaw & Co., Inc. Hedge fund0.01%$13.9m109,823–new
CVA Family Office, LLC Family office0.01%$83.4k6600.0%held
Two Sigma Investments, LP Hedge fund0.01%$8.3m65,892−63%reduced
Freestone Grove Partners LP Hedge fund0.0%$600k4,753–new
Brevan Howard Capital Management LP Hedge fund0.0%$273k2,158−34%reduced
Squarepoint Ops LLC Hedge fund0.0%$1.8m14,389−82%reduced
Balyasny Asset Management L.P. Hedge fund0.0%$852k6,749−95%reduced
Renaissance Technologies LLC Hedge fund0.0%$973k7,700+221%added
Persistent Asset Partners Ltd Hedge fund0.0%$3.3k26–new
Fulcrum Asset Management LLP Hedge fund0.0%$2.6k20–new
Arrowstreet Capital, Limited Partnership Hedge fund0.0%$218k1,722–new