Water Island Capital

Water Island Capital as of March 31, 2026

Portfolio Holdings for Water Island Capital

Water Island Capital holds 98 positions in its portfolio as reported in the March 2026 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Electronic Arts Equity (EA) 5.7 $51M 250k 203.87
Janus Henderson Group Equity (JHG) 5.3 $47M 922k 51.37
Warner Bros Discovery Equity (WBD) 5.0 $44M 1.6M 27.46
Hologic Equity 4.7 $42M 560k 75.59
Txnm Energy Equity (TXNM) 4.4 $40M 675k 58.46
Penumbra Equity (PEN) 4.4 $39M 120k 328.37
Chart Inds Equity (GTLS) 4.4 $39M 190k 206.75
Norfolk Southn Corp Equity (NSC) 4.3 $39M 134k 287.00
Masimo Corp Equity (MASI) 3.9 $35M 194k 177.87
Electronic Arts Equity Put Put Option 3.4 $31M 150k 203.87
Webster Finl Corp Equity (WBS) 3.2 $29M 416k 69.42
Warner Bros Discovery Equity Put Put Option 3.2 $29M 1.0M 27.46
Tri Pointe Homes Equity (TPH) 2.8 $25M 536k 46.73
National Storage Affiliates Equity (NSA) 2.4 $22M 576k 37.74
Great Lakes Dredge & Dock Equity 2.4 $22M 1.3M 17.00
Arcellx Equity (ACLX) 2.4 $21M 183k 114.82
Day One Biopharmaceuticals I Equity (DAWN) 2.3 $20M 944k 21.44
Digitalbridge Group Equity (DBRG) 2.2 $20M 1.3M 15.42
Day One Biopharmaceuticals I Equity Put Put Option 2.0 $18M 840k 21.44
Stellar Bancorp Equity (STEL) 1.8 $16M 431k 36.61
Enhabit Equity (EHAB) 1.5 $14M 985k 14.09
Silicon Laboratories Equity (SLAB) 1.4 $12M 58k 208.15
Kenvue Equity (KVUE) 1.3 $12M 701k 17.24
Kenvue Equity Put Put Option 1.3 $12M 701k 17.24
Veris Residential Equity (VRE) 1.3 $11M 597k 18.87
Peakstone Realty Trust Equity (PKST) 1.2 $11M 504k 20.89
Terns Pharmaceuticals Equity (TERN) 1.1 $9.9M 189k 52.72
Terns Pharmaceuticals Equity Put Put Option 1.1 $9.9M 189k 52.72
Silicon Laboratories Equity Put Put Option 1.1 $9.9M 48k 208.15
Kennedy-wilson Holdings Equity (KW) 1.0 $8.9M 826k 10.82
Zim Integrated Shipping Serv Equity (ZIM) 1.0 $8.7M 332k 26.35
Zim Integrated Shipping Serv Equity Put Put Option 1.0 $8.7M 332k 26.35
Txnm Energy Convertible Bond (Principal) 0.9 $8.1M 6.0M 1.35
Janus Henderson Group Equity Put Put Option 0.9 $7.9M 154k 51.37
Banco Santander Sa Equity Call Call Option 0.9 $7.7M 682k 11.28
Unifirst Corp Mass Equity (UNF) 0.7 $6.5M 26k 251.59
Csg Sys Intl Convertible Bond (Principal) 0.7 $6.1M 5.0M 1.22
Axalta Coating Sys Equity (AXTA) 0.6 $5.7M 207k 27.70
Axalta Coating Sys Equity Put Put Option 0.6 $5.4M 195k 27.70
Rapid7 Convertible Bond (Principal) 0.5 $4.9M 5.5M 0.88
Apellis Pharmaceuticals Equity (APLS) 0.5 $4.8M 121k 40.23
Apellis Pharmaceuticals Equity Put Put Option 0.5 $4.8M 121k 40.23
Air Lease Corp Equity 0.5 $4.7M 73k 64.94
Bentley Sys Convertible Bond (Principal) 0.5 $4.7M 5.0M 0.95
Nutanix Convertible Bond (Principal) 0.5 $4.5M 5.0M 0.90
Redfin Corp Convertible Bond (Principal) 0.5 $4.3M 4.5M 0.96
Halozyme Therapeutics Convertible Bond (Principal) 0.3 $3.1M 3.0M 1.04
Aes Corp Equity (AES) 0.3 $2.6M 186k 14.09
Varonis Sys Convertible Bond (Principal) 0.3 $2.6M 3.0M 0.87
Clearwater Analytics Hldgs I Equity (CWAN) 0.3 $2.6M 110k 23.65
Sealed Air Corp Equity 0.3 $2.4M 56k 42.05
Allied Gold Corp Equity (AAUC) 0.3 $2.3M 73k 30.99
Onestream Equity 0.2 $2.2M 91k 24.00
Brighthouse Finl Equity (BHF) 0.2 $2.0M 34k 59.88
Ncr Atleos Corporation Equity (NATL) 0.2 $1.7M 39k 43.58
Select Med Hldgs Corp Equity (SEM) 0.2 $1.7M 104k 16.29
Thermon Group Hldgs Equity (THR) 0.2 $1.7M 33k 50.40
Sun Ctry Airls Hldgs Equity (SNCY) 0.2 $1.6M 99k 16.52
Centessa Pharmaceuticals Equity (CNTA) 0.2 $1.6M 41k 39.72
Centessa Pharmaceuticals Equity Put Put Option 0.2 $1.6M 41k 39.72
Csg Sys Intl Equity (CSGS) 0.2 $1.6M 20k 79.94
Semrush Hldgs Equity (SEMR) 0.2 $1.6M 134k 11.94
Amicus Therapeutic Equity (FOLD) 0.2 $1.5M 104k 14.46
Boeing Equity (BA) 0.2 $1.4M 7.2k 199.03
Sunopta Equity (STKL) 0.1 $1.3M 197k 6.48
Proassurance Corp Equity (PRA) 0.1 $1.3M 51k 24.72
Cantaloupe Equity (CTLP) 0.1 $1.2M 108k 10.81
Clear Channel Outdoor Hldgs Equity (CCO) 0.1 $1.1M 479k 2.37
Ihs Holding Equity (IHS) 0.1 $1.1M 138k 8.23
Talkspace Equity (TALK) 0.1 $1.1M 216k 5.17
Mister Car Wash Equity (MCW) 0.1 $1.1M 157k 6.97
Dicks Sporting Goods Equity (DKS) 0.1 $1.1M 5.3k 198.29
Gladstone Cap Corp Convertible Bond (Principal) 0.1 $968k 1.0M 0.97
Coterra Energy Equity (CTRA) 0.1 $959k 27k 35.14
Skywater Technology Equity (SKYT) 0.1 $947k 35k 27.41
Northwestern Energy Group In Equity (NWE) 0.1 $913k 14k 65.94
Amneal Pharmaceuticals Equity (AMRX) 0.1 $850k 68k 12.43
Caesars Entertainment Inc Ne Equity (CZR) 0.1 $780k 30k 26.43
Udemy Equity (UDMY) 0.1 $644k 139k 4.62
Lauder Estee Cos Equity (EL) 0.1 $538k 7.5k 71.77
Penn Entertainment Equity (PENN) 0.1 $526k 35k 15.03
Calavo Growers Equity (CVGW) 0.1 $524k 20k 25.79
International Money Express Equity (IMXI) 0.1 $523k 33k 15.80
Nathans Famous Equity (NATH) 0.1 $503k 5.0k 100.73
On24 Equity 0.1 $489k 60k 8.10
Heritage Comm Corp Equity (HTBK) 0.1 $474k 38k 12.48
Blue Foundry Bancorp Equity 0.1 $472k 36k 13.24
Echostar Corp Equity (SATS) 0.1 $468k 4.0k 117.07
Flushing Finl Corp Equity (FFIC) 0.1 $463k 30k 15.36
United Airls Hldgs Equity (UAL) 0.1 $460k 5.0k 92.07
Diamond Hill Invt Group Equity (DHIL) 0.0 $434k 2.5k 172.10
First Fndtn Equity 0.0 $399k 68k 5.90
Alaska Air Group Equity (ALK) 0.0 $378k 10k 36.78
Pacific Biosciences Calif In Equity (PACB) 0.0 $359k 272k 1.32
Victory Cap Hldgs Inc Del Equity (VCTR) 0.0 $335k 5.1k 65.48
Viking Therapeutics Equity (VKTX) 0.0 $335k 10k 32.54
United Parcel Svcs Equity (UPS) 0.0 $248k 2.5k 98.38
Paypal Hldgs Equity (PYPL) 0.0 $232k 5.1k 45.23