WATER ISLAND CAPITAL LLC
CIK: 0001222765Latest portfolio: $927.6M · Q4 2025
Holdings
91
Total Value
$927.6M
New Positions
50
Closed Positions
44
Top Holdings
View All 91 Holdings →| # | Stock | Shares | Value | % Portfolio | Change | Type |
|---|---|---|---|---|---|---|
| 1 | GTLSChart Industries Inc | 188,325 | $38.8M | 4.19% | +61K | |
| 2 | CYBRCyberArk Software Ltd | 86,648 | $38.6M | 4.17% | +849 | |
| 3 | NSCNorfolk Southern Corp | 129,043 | $37.3M | 4.02% | +3K | |
| 4 | EAElectronic Arts Inc | 180,838 | $37.0M | 3.98% | +92K | |
| 5 | EXASExact Sciences Corp | 350,009 | $35.5M | 3.83% | NEW | |
| 6 | HOLXHologic Inc | 467,742 | $34.8M | 3.76% | NEW | |
| 7 | CMAComerica Inc | 398,037 | $34.6M | 3.73% | NEW | |
| 8 | TXNMTXNM Energy Inc | 576,411 | $33.9M | 3.66% | +126K | |
| 9 | CDTXCidara Therapeutics Inc | 150,708 | $33.3M | 3.59% | NEW | |
| 10 | WBDWarner Bros Discovery Inc | 1,139,634 | $32.8M | 3.54% | NEW | |
| 11 | JHGJanus Henderson Group PLC | 647,485 | $30.8M | 3.32% | NEW | |
| 12 | AVDLAvadel Pharmaceuticals PLC | 1,087,117 | $23.4M | 2.53% | NEW | |
| 13 | SEESealed Air Corp | 559,237 | $23.2M | 2.50% | NEW | |
| 14 | TGNATEGNA Inc | 1,179,885 | $22.9M | 2.47% | -43,623 | |
| 15 | AHLAspen Insurance Holdings Ltd | 572,685 | $21.2M | 2.29% | -47,564 | |
| 16 | CWANClearwater Analytics Holdings | 875,632 | $21.1M | 2.28% | NEW | |
| 17 | SYU1Synovus Financial Corp | 403,650 | $20.2M | 2.18% | -17,850 | |
| 18 | CFLTConfluent Inc | 640,113 | $19.4M | 2.09% | NEW | |
| 19 | ALAir Lease Corp | 298,440 | $19.2M | 2.07% | -2,237 | |
| 20 | STTState Street SPDR S&P 500 ETF | 25,000 | $17.0M | 1.84% | NEW | Call |
| 21 | —Cidara Therapeutics Inc | 76,900 | $17.0M | 1.83% | NEW | Put |
| 22 | DBRGDigitalBridge Group Inc | 929,000 | $14.3M | 1.54% | NEW | |
| 23 | TECKTeck Resources Ltd | 292,100 | $14.0M | 1.51% | +83K | Put |
| 24 | JAMFJamf Holding Corp | 985,069 | $12.8M | 1.38% | NEW | |
| 25 | CADECadence Bank | 297,603 | $12.7M | 1.37% | NEW |
Quarterly Changes
New Positions
Sector Breakdown
Unknown0.0% ($3.4601332892020215e+134T)
Technology0.0% ($3.865021246211202e+49T)
Healthcare0.0% ($3.554634842234271e+31T)
Financial Services0.0% ($308001704818681184256.0T)
Consumer Defensive0.0% ($1198811905425723.3T)
Industrials0.0% ($38838372571.9T)
Communication Services0.0% ($3695032844.2T)
Basic Materials0.0% ($13988664.6T)
Utilities0.0% ($339.4T)
Real Estate0.0% ($142.5B)
Consumer Cyclical0.0% ($23.2B)
Filing History
| Quarter | Filing Date | Portfolio Value | Holdings |
|---|---|---|---|
| Q4 2025 | Feb 17, 2026 | $927.6M | 91 |
| Q3 2025 | Nov 14, 2025 | $793.3B | 84 |
| Q2 2025 | Aug 14, 2025 | $702.0B | 76 |
| Q1 2025 | May 15, 2025 | $764.1B | 84 |
| Q4 2024 | Feb 13, 2025 | $925.7B | 78 |
| Q3 2024 | Nov 14, 2024 | $992.7B | 79 |
| Q2 2024 | Aug 15, 2024 | $943.0M | 71 |
| Q1 2024 | May 15, 2024 | $883.7M | 59 |
| Q4 2023 | Feb 13, 2024 | $976.3M | 57 |
| Q3 2023 | Nov 14, 2023 | $1.1B | 81 |
| Q2 2023 | Aug 14, 2023 | $1.1B | 75 |
| Q1 2023 | May 25, 2023 | $1.2B | 74 |
| Q4 2022 | Feb 14, 2023 | $1.2B | 86 |
| Q3 2022 | Nov 14, 2022 | $1.8B | 103 |
| Q2 2022 | Aug 15, 2022 | $1.6B | 88 |
| Q1 2022 | May 13, 2022 | $2.0B | 85 |
| Q4 2021 | Feb 14, 2022 | $1.8B | 97 |
| Q3 2021 | Nov 12, 2021 | $1.7B | 70 |
| Q2 2021 | Aug 12, 2021 | $1.9B | 72 |
| Q1 2021 | May 13, 2021 | $1.6B | 96 |
| Q4 2020 | Feb 10, 2021 | $1.4B | 106 |
| Q3 2020 | Nov 12, 2020 | $1.2B | 96 |
| Q2 2020 | Aug 12, 2020 | $1.1B | 82 |
| Q1 2020 | May 12, 2020 | $1.4B | 61 |
| Q4 2019 | Feb 11, 2020 | $1.4B | 66 |
| Q3 2019 | Nov 12, 2019 | $1.6B | 78 |
| Q2 2019 | Aug 12, 2019 | $2.1B | 100 |
| Q1 2019 | May 3, 2019 | $1.7B | 92 |
| Q4 2018 | Feb 5, 2019 | $1.3B | 96 |
| Q3 2018 | Nov 13, 2018 | $1.8B | 103 |
| Q2 2018 | Aug 9, 2018 | $1.8B | 118 |
| Q1 2018 | May 14, 2018 | $2.5B | 93 |
| Q4 2017 | Feb 13, 2018 | $1.6B | 90 |
| Q3 2017 | Nov 14, 2017 | $2.1B | 109 |
| Q2 2017 | Aug 14, 2017 | $2.1B | 108 |
| Q1 2017 | May 15, 2017 | $1.8B | 88 |
| Q4 2016 | Feb 14, 2017 | $1.5B | 113 |
| Q3 2016 | Nov 17, 2016 | $1.6B | 148 |
| Q2 2016 | Aug 15, 2016 | $2.0B | 192 |
| Q1 2016 | May 16, 2016 | $1.5B | 169 |
Fund Information
WATER ISLAND CAPITAL LLC is an institutional investment manager that files 13F reports with the SEC. As of the Q4 2025 filing, the fund reported a portfolio valued at $927.6M across 91 holdings. The largest position is Chart Industries Inc (GTLS), representing 4.2% of the portfolio. Compared to the previous quarter, the fund opened 61 new positions and closed 54 positions. 13F filings are required quarterly disclosures that provide transparency into the holdings of institutional investment managers with at least $100 million in qualifying assets.