Rush Island Management, LP

In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 17, 2026), Rush Island Management, LP reported 17 stock positions worth $1.6 billion. Its top holding was SBA Communications (SBAC) at 14.2% of the portfolio, followed by Essex Property Trust (ESS, 10.4%) and Healthcare Realty Trust (HR, 9.5%). Compared with Q3 2025, it opened 4 new positions, sold out of 4, added to 8 and reduced 4. The biggest buy was a new position in Udr (UDR) and the biggest sale an exit from Hyatt Hotels Class A (H).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001736465
Portfolio Value
$1.6B (Q4 2025)
SEC Filing
0001214659-26-001981 ↗ filed Feb 17, 2026

Holdings Value

0$500.0M$1.0B$1.5B$2.0B Q1 2024: $1.1B Q1 2024 Q2 2024: $1.2B Q2 2024 Q3 2024: $1.3B Q3 2024 Q4 2024: $1.5B Q4 2024 Q1 2025: $1.6B Q1 2025 Q2 2025: $1.5B Q2 2025 Q3 2025: $1.5B Q3 2025 Q4 2025: $1.6B $1.6B Q4 2025 Q1 2026: $1.5B Q1 2026 Q2 2026: $1.5B Q2 2026

Holdings 17 stocks · $1.6B

SBAC SBA Communications Corp. 14.23% 1,177,595 $227.8M Add +24.8%
ESS Essex Property Trust Inc. 10.42% 637,211 $166.7M Add +7.3%
HR Healthcare Realty Trust Inc. 9.54% 9,007,902 $152.7M Add +15.4%
NNN NNN REIT Inc. 9.49% 3,833,086 $151.9M Add +24.9%
UDR Udr Inc. 8.17% 3,566,132 $130.8M New
FRT Federal Realty Invs Trust 8.09% 1,285,095 $129.5M Reduce -2.0%
VTR Ventas Inc. 7.90% 1,633,455 $126.4M Reduce -7.7%
FR First Industrial Realty TR 7.44% 2,079,542 $119.1M Add +1.3%
O Realty Income Corp. 7.06% 2,004,065 $113.0M Reduce -3.9%
KRC Kilroy Realty Corp. 6.15% 2,633,921 $98.4M Reduce -5.7%
COLD Americold Realty Trust Inc. 2.35% 2,928,659 $37.7M New
AKR Acadia Realty Trust 2.21% 1,718,816 $35.3M No change
NSA National Storage Affiliates 2.11% 1,197,716 $33.8M New
SITC Site Centers Corp. filed as SITE CTRS CORP 1.60% 3,989,634 $25.6M Add +19.8%
FUN Six Flags Entertainment Corp. 1.13% 1,181,229 $18.1M Add +142.5%
CURB Curbline Properties Corp. 1.11% 768,327 $17.8M Add +0.1%
SMA Smartstop Self Storage REIT 0.98% 505,613 $15.6M New

Portfolio Sells Q3 2025 → Q4 2025

H Hyatt Hotels Corp. Class A Sold out 0.00% −5.88
SHO Sunstone Hotel Investors Inc. Sold out 0.00% −2.38
KRC Kilroy Realty Corp. Reduce -5.7% 6.15% −1.94
O Realty Income Corp. Reduce -3.9% 7.06% −1.63
LINE Lineage Inc. Sold out 0.00% −1.36
FRT Federal Realty Invs Trust Reduce -2.0% 8.09% −1.01
VTR Ventas Inc. Reduce -7.7% 7.90% −0.59
HUT Hut 8 Corp. Sold out 0.00% −0.38

Portfolio Buys Q3 2025 → Q4 2025

UDR Udr Inc. New 8.17% +8.17
COLD Americold Realty Trust Inc. New 2.35% +2.35
NSA National Storage Affiliates New 2.11% +2.11
SBAC SBA Communications Corp. Add +24.8% 14.23% +1.73
SMA Smartstop Self Storage REIT New 0.98% +0.98
NNN NNN REIT Inc. Add +24.9% 9.49% +0.53
FUN Six Flags Entertainment Corp. Add +142.5% 1.13% +0.37
FR First Industrial Realty TR Add +1.3% 7.44% +0.20
CURB Curbline Properties Corp. Add +0.1% 1.11% −0.06
HR Healthcare Realty Trust Inc. Add +15.4% 9.54% −0.10
SITC Site Centers Corp. Add +19.8% 1.60% −0.46
ESS Essex Property Trust Inc. Add +7.3% 10.42% −0.48

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 22$1.5BINVH, ESS, NNN, KRC, HR
Q1 2026 22$1.5BESS, SBAC, KRC, NNN, HR
Q4 2025 17$1.6BSBAC, ESS, HR, NNN, UDR
Q3 2025 17$1.5BSBAC, ESS, HR, FRT, NNN
Q2 2025 17$1.5BHR, VTR, FRT, NNN, KRC
Q1 2025 14$1.6BHR, VTR, O, KRC, NNN
Q4 2024 14$1.5BHR, VTR, O, FRT, REXR
Q3 2024 18$1.3BHR, O, NNN, FRT, SHO
Q2 2024 13$1.2BHR, O, FRT, NNN, SHO
Q1 2024 15$1.1BHR, O, FRT, NNN, SHO