Water Island Capital Llc Portfolio Stock Holdings
Water Island Capital Llc disclosed 86 stock positions valued at approximately $750.1 million in its latest SEC 13F filing. The largest holdings include ELECTRONIC ARTS INC, JANUS HENDERSON GROUP PLC, and WARNER BROS DISCOVERY INC. The filing reflects positions held as of March 31, 2026 and was filed on May 15, 2026.
- Report Period
- March 31, 2026
- No. of Stocks
- 86
- Portfolio Value
- $750.1M
Holdings by Sector
Water Island Capital Llc Portfolio Holdings in Q1 2026
74 holdings in the latest reporting period.
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| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| ELECTRONIC ARTS INC | EA | Communication Services | 6.79% | 249,888 | +69,050 | +38.18% | $50,944,667 |
| JANUS HENDERSON GROUP PLC | JHG | Other | 6.32% | 922,277 | +274,792 | +42.44% | $47,377,369 |
| WARNER BROS DISCOVERY INC | WBD | Communication Services | 5.92% | 1,617,020 | +477,386 | +41.89% | $44,403,369 |
| HOLOGIC INC | HOLX | Healthcare | 5.64% | 560,045 | +92,303 | +19.73% | $42,333,801 |
| TXNM ENERGY INC | TXNM | Utilities | 5.26% | 674,867 | +98,456 | +17.08% | $39,452,726 |
| PENUMBRA INC | PEN | Healthcare | 5.26% | 120,095 | +120,095 | +100.00% | $39,435,596 |
| CHART INDS INC | GTLS | Industrials | 5.24% | 189,939 | +1,614 | +0.86% | $39,269,891 |
| NORFOLK SOUTHN CORP | NSC | Industrials | 5.13% | 134,051 | +5,008 | +3.88% | $38,472,637 |
| MASIMO CORP | MASI | Healthcare | 4.60% | 194,197 | +194,197 | +100.00% | $34,541,821 |
| WEBSTER FINL CORP | WBS | Financial Services | 3.85% | 415,823 | +415,823 | +100.00% | $28,866,433 |
| TRI POINTE HOMES INC | TPH | Consumer Cyclical | 3.34% | 536,367 | +536,367 | +100.00% | $25,064,430 |
| NATIONAL STORAGE AFFILIATES | NSA | Real Estate | 2.90% | 576,224 | +576,224 | +100.00% | $21,746,694 |
| GREAT LAKES DREDGE & DOCK CO | GLDD | Industrials | 2.86% | 1,263,580 | +1,263,580 | +100.00% | $21,480,860 |
| ARCELLX INC | ACLX | Healthcare | 2.81% | 183,409 | +183,409 | +100.00% | $21,059,022 |
| DAY ONE BIOPHARMACEUTICALS I | DAWN | Healthcare | 2.70% | 944,247 | +944,247 | +100.00% | $20,244,656 |
| DIGITALBRIDGE GROUP INC | DBRG | Real Estate | 2.67% | 1,299,051 | +370,051 | +39.83% | $20,031,366 |
| STELLAR BANCORP INC | STEL | Financial Services | 2.10% | 431,231 | +431,231 | +100.00% | $15,787,367 |
| ENHABIT INC | EHAB | Healthcare | 1.85% | 984,611 | +984,611 | +100.00% | $13,873,170 |
| SILICON LABORATORIES INC | SLAB | Technology | 1.62% | 58,417 | +58,417 | +100.00% | $12,159,499 |
| KENVUE INC | KVUE | Consumer Defensive | 1.61% | 700,600 | +10,409 | +1.51% | $12,078,345 |
| VERIS RESIDENTIAL INC | VRE | Real Estate | 1.50% | 597,390 | +597,390 | +100.00% | $11,272,750 |
| PEAKSTONE REALTY TRUST | PKST | Real Estate | 1.40% | 503,583 | +503,583 | +100.00% | $10,519,849 |
| TERNS PHARMACEUTICALS INC | TERN | Healthcare | 1.32% | 188,500 | +188,500 | +100.00% | $9,937,720 |
| KENNEDY-WILSON HOLDINGS INC | KW | Real Estate | 1.19% | 825,652 | +825,652 | +100.00% | $8,933,555 |
| ZIM INTEGRATED SHIPPING SERV | M9T951109 | Other | 1.17% | 331,800 | +331,800 | +100.00% | $8,742,930 |
| UNIFIRST CORP MASS | UNF | Industrials | 0.86% | 25,743 | +25,743 | +100.00% | $6,476,681 |
| AXALTA COATING SYS LTD | AXTA | Other | 0.76% | 206,902 | +1,180 | +0.57% | $5,731,185 |
| APELLIS PHARMACEUTICALS INC | APLS | Healthcare | 0.65% | 120,500 | +120,500 | +100.00% | $4,847,715 |
| AIR LEASE CORP | AL | Industrials | 0.63% | 73,131 | -225,309 | -75.50% | $4,749,127 |
| AES CORP | AES | Utilities | 0.35% | 185,833 | +185,833 | +100.00% | $2,618,387 |
| CLEARWATER ANALYTICS HLDGS I | CWAN | Technology | 0.35% | 109,589 | -766,043 | -87.48% | $2,591,780 |
| SEALED AIR CORP NEW | SEE | Consumer Cyclical | 0.31% | 56,071 | -503,166 | -89.97% | $2,357,785 |
| BRIGHTHOUSE FINL INC | BHF | Financial Services | 0.27% | 33,490 | +4,649 | +16.12% | $2,005,381 |
| NCR ATLEOS CORPORATION | NATL | Technology | 0.23% | 38,939 | +38,939 | +100.00% | $1,696,962 |
| SELECT MED HLDGS CORP | SEM | Healthcare | 0.22% | 103,467 | +103,467 | +100.00% | $1,685,477 |
| THERMON GROUP HLDGS INC | THR | Industrials | 0.22% | 32,987 | +32,987 | +100.00% | $1,662,545 |
| SUN CTRY AIRLS HLDGS INC | SNCY | Industrials | 0.22% | 98,859 | +98,859 | +100.00% | $1,633,151 |
| CENTESSA PHARMACEUTICALS PLC | CNTA | Healthcare | 0.22% | 41,000 | +41,000 | +100.00% | $1,628,520 |
| CSG SYS INTL INC | CSGS | Technology | 0.22% | 20,223 | -130,497 | -86.58% | $1,616,627 |
| SEMRUSH HLDGS INC | SEMR | Technology | 0.21% | 133,872 | -494,730 | -78.70% | $1,598,432 |
| AMICUS THERAPEUTIC | FOLD | Healthcare | 0.20% | 104,066 | -602,551 | -85.27% | $1,504,794 |
| BOEING CO | BA | Industrials | 0.19% | 7,234 | +7,234 | +100.00% | $1,439,783 |
| SUNOPTA INC | STKL | Consumer Defensive | 0.17% | 196,514 | +196,514 | +100.00% | $1,273,411 |
| PROASSURANCE CORP | PRA | Financial Services | 0.17% | 51,103 | +4,111 | +8.75% | $1,263,266 |
| CANTALOUPE INC | CTLP | Technology | 0.16% | 107,867 | -23,927 | -18.15% | $1,166,042 |
| CLEAR CHANNEL OUTDOOR HLDGS | CCO | Communication Services | 0.15% | 478,517 | +478,517 | +100.00% | $1,134,085 |
| TALKSPACE INC | TALK | Healthcare | 0.15% | 216,158 | +216,158 | +100.00% | $1,118,618 |
| MISTER CAR WASH INC | MCW | Consumer Cyclical | 0.15% | 156,502 | +156,502 | +100.00% | $1,090,819 |
| DICKS SPORTING GOODS INC | DKS | Consumer Cyclical | 0.14% | 5,348 | +4,248 | +386.18% | $1,060,455 |
| COTERRA ENERGY INC | CTRA | Energy | 0.13% | 27,292 | +27,292 | +100.00% | $959,041 |
| SKYWATER TECHNOLOGY INC | SKYT | Technology | 0.13% | 34,536 | +34,536 | +100.00% | $946,632 |
| NORTHWESTERN ENERGY GROUP IN | NWE | Utilities | 0.12% | 13,838 | -469 | -3.28% | $912,478 |
| AMNEAL PHARMACEUTICALS INC | AMRX | Healthcare | 0.11% | 68,400 | +68,400 | +100.00% | $850,212 |
| CAESARS ENTERTAINMENT INC NE | CZR | Consumer Cyclical | 0.10% | 29,500 | +29,500 | +100.00% | $779,685 |
| UDEMY INC | UDMY | Consumer Defensive | 0.09% | 139,335 | +3,413 | +2.51% | $643,728 |
| LAUDER ESTEE COS INC | EL | Consumer Defensive | 0.07% | 7,500 | +7,500 | +100.00% | $538,275 |
| PENN ENTERTAINMENT INC | PENN | Consumer Cyclical | 0.07% | 35,000 | +35,000 | +100.00% | $526,050 |
| CALAVO GROWERS INC | CVGW | Consumer Defensive | 0.07% | 20,321 | +20,321 | +100.00% | $524,079 |
| INTERNATIONAL MONEY EXPRESS | IMXI | Technology | 0.07% | 33,122 | -55,354 | -62.56% | $523,328 |
| NATHANS FAMOUS INC | NATH | Consumer Cyclical | 0.07% | 4,994 | +4,994 | +100.00% | $503,046 |
| ON24 INC | ONTF | Technology | 0.07% | 60,364 | +60,364 | +100.00% | $488,948 |
| HERITAGE COMM CORP | HTBK | Financial Services | 0.06% | 37,992 | +4,068 | +11.99% | $474,140 |
| BLUE FOUNDRY BANCORP | BLFY | Financial Services | 0.06% | 35,658 | +35,658 | +100.00% | $472,112 |
| ECHOSTAR CORP | SATS | Technology | 0.06% | 4,000 | +4,000 | +100.00% | $468,280 |
| FLUSHING FINL CORP | FFIC | Financial Services | 0.06% | 30,161 | +30,161 | +100.00% | $463,273 |
| UNITED AIRLS HLDGS INC | UAL | Industrials | 0.06% | 5,000 | +5,000 | +100.00% | $460,350 |
| DIAMOND HILL INVT GROUP INC | DHIL | Financial Services | 0.06% | 2,522 | +40 | +1.61% | $434,036 |
| FIRST FNDTN INC | FFWM | Financial Services | 0.05% | 67,573 | +1,654 | +2.51% | $398,681 |
| ALASKA AIR GROUP INC | ALK | Industrials | 0.05% | 10,265 | +10,265 | +100.00% | $377,547 |
| PACIFIC BIOSCIENCES CALIF IN | PACB | Healthcare | 0.05% | 272,040 | +272,040 | +100.00% | $359,093 |
| VICTORY CAP HLDGS INC DEL | VCTR | Financial Services | 0.04% | 5,120 | +5,120 | +100.00% | $335,258 |
| VIKING THERAPEUTICS INC | VKTX | Healthcare | 0.04% | 10,280 | +10,280 | +100.00% | $334,511 |
| UNITED PARCEL SVCS INC | UPS | Industrials | 0.03% | 2,520 | +2,520 | +100.00% | $247,918 |
| PAYPAL HLDGS INC | PYPL | Financial Services | 0.03% | 5,124 | +5,124 | +100.00% | $231,759 |