RUSH ISLAND MANAGEMENT, LP — 13F Holdings & Portfolio
CIK 1736465 · latest 13F-HR filed 2026-05-15
RUSH ISLAND MANAGEMENT, LP manages $1.49B in 13F-reported U.S. long-equity assets across 22 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are ESS (13.12%), SBAC (11.30%), KRC (9.20%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 9 new positions, exited 4, added to 2, and trimmed 10.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$1.49B
Long-equity book
22
Distinct positions
2026-03-31
Filed 2026-05-15
+9 / −4 / ↑2 / ↓10
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- KILROY REALTY CORP$38.7M +39.3%
- ESSEX PPTY TR INC$28.8M +17.3%
Top Trims
- FEDERAL RLTY INVT TR NEW-$61.7M -47.6%
- SBA COMMUNICATIONS CORP-$59.4M -26.1%
- HEALTHCARE RLTY TR-$29.9M -19.6%
- NNN REIT INC-$21.6M -14.2%
- FIRST INDL RLTY TR INC-$17.6M -14.8%
New Positions
- INVITATION HOMES INC$105.3M
- INDEPENDENCE RLTY TR INC$51.5M
- AGREE RLTY CORP$51.1M
- ESSENTIAL PPTYS RLTY TR INC$37.9M
- SABRA HEALTH CARE REIT INC$30.7M
Exited Positions
- UDR INC$130.8M
- REALTY INCOME CORP$113.0M
- NATIONAL STORAGE AFFILIATES$33.8M
- SMARTSTOP SELF STORAG REIT I$15.6M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | ESSEX PPTY TR INC | ESS | 297178105 | $195.5M | 13.12% | 807,893 | SH |
| 2 | SBA COMMUNICATIONS CORP | SBAC | 78410G104 | $168.4M | 11.30% | 978,390 | SH |
| 3 | KILROY REALTY CORP | KRC | 49427F108 | $137.1M | 9.20% | 4,860,742 | SH |
| 4 | NNN REIT INC | NNN | 637417106 | $130.3M | 8.74% | 3,099,284 | SH |
| 5 | HEALTHCARE RLTY TR | HR | 42226K105 | $122.8M | 8.24% | 7,225,362 | SH |
| 6 | VENTAS INC | VTR | 92276F100 | $114.7M | 7.70% | 1,402,660 | SH |
| 7 | INVITATION HOMES INC | INVH | 46187W107 | $105.3M | 7.06% | 4,237,107 | SH |
| 8 | FIRST INDL RLTY TR INC | FR | 32054K103 | $101.5M | 6.81% | 1,754,344 | SH |
| 9 | FEDERAL RLTY INVT TR NEW | FRT | 313745101 | $67.8M | 4.55% | 638,538 | SH |
| 10 | INDEPENDENCE RLTY TR INC | IRT | 45378A106 | $51.5M | 3.45% | 3,456,162 | SH |
| 11 | AGREE RLTY CORP | ADC | 008492100 | $51.1M | 3.43% | 677,438 | SH |
| 12 | ESSENTIAL PPTYS RLTY TR INC | EPRT | 29670E107 | $37.9M | 2.54% | 1,249,087 | SH |
| 13 | AMERICOLD REALTY TRUST INC | COLD | 03064D108 | $35.5M | 2.38% | 3,097,316 | SH |
| 14 | ACADIA RLTY TR | AKR | 004239109 | $32.3M | 2.17% | 1,689,278 | SH |
| 15 | SABRA HEALTH CARE REIT INC | SBRA | 78573L106 | $30.7M | 2.06% | 1,598,287 | SH |
| 16 | SITE CTRS CORP | SITC | 82981J851 | $24.0M | 1.61% | 4,445,666 | SH |
| 17 | COSTAR GROUP INC | CSGP | 22160N109 | $19.5M | 1.31% | 483,200 | SH |
| 18 | APPLE HOSPITALITY REIT INC | APLE | 03784Y200 | $17.1M | 1.15% | 1,489,435 | SH |
| 19 | CURBLINE PPTYS CORP | CURB | 23128Q101 | $17.1M | 1.15% | 664,514 | SH |
| 20 | SIX FLAGS ENTERTAINMENT CORP | FUN | 83001C108 | $16.5M | 1.10% | 927,829 | SH |
| 21 | JANUS LIVING INC | JAN | 471024109 | $7.1M | 0.47% | 300,000 | SH |
| 22 | SONIDA SENIOR LIVING INC | SNDA | 140475203 | $7.0M | 0.47% | 218,171 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $1.49B | 22 | 0001214659-26-006469 |
| 2025-12-31 | 2026-02-17 | $1.60B | 17 | 0001214659-26-001981 |
| 2025-09-30 | 2025-11-14 | $1.46B | 17 | 0001214659-25-016635 |