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  • Gurus
  • Event Driven
  • WATER ISLAND CAPITAL LLC (Data extracted from 13F, 13D, 13G and Form 4)

WATER ISLAND CAPITAL LLC

AUM: $1.59 B
13-F Portfolio Value: $793.31 M
Last 13-F Filed: Q3 2025
Concentration in top 10: 37.19%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
CYBRCYBERARK SOFTWARE LTD5.23%85,799$41,453,78785,799New$483.1513F
NSCNORFOLK SOUTHN CORP4.76%125,799$37,791,278125,799New$300.4113F
VRNAVERONA PHARMA PLC3.9%290,182$30,965,322290,182New$106.7113F
AVDXAVIDXCHANGE HOLDINGS INC3.62%2,882,867$28,684,527921,53346.99%$9.9513F
INFAINFORMATICA INC3.6%1,149,598$28,556,014343,37042.59%$24.8413F
VBTXVERITEX HLDGS INC3.45%815,698$27,350,353815,698New$33.5313F
GTLSCHART INDS INC3.21%127,171$25,453,276127,171New$200.1513F
TXNMTXNM ENERGY INC3.21%450,660$25,484,824188,12171.65%$56.5513F
TGNATEGNA INC3.14%1,223,508$24,873,9181,223,508New$20.3313F
VRNTVERINT SYS INC3.07%1,202,967$24,360,0821,202,967New$20.2513F
PBPBPOTBELLY CORP2.9%1,351,588$23,031,0601,351,588New$17.0413F
AHLASPEN INSURANCE HOLDINGS LTD2.87%620,249$22,769,340620,249New$36.7113F
WNSWNS HLDGS LTD2.85%296,042$22,579,123296,042New$76.2713F
SNVSYNOVUS FINL CORP2.61%421,500$20,687,220421,500New$49.0813F
SNVSYNOVUS FINL CORP (Put)2.61%421,500$20,687,220421,500New$49.0813F
ALAIR LEASE CORP2.41%300,677$19,138,092300,677New$63.6513F
CORZCORE SCIENTIFIC INC NEW (Put)2.36%1,042,000$18,693,4801,042,000New$17.9413F
MLNKMERIDIANLINK INC2.34%930,234$18,539,564930,234New$19.9313F
SPNSSAPIENS INTL CORP N V2.28%421,434$18,121,662421,434New$4313F
EAELECTRONIC ARTS INC2.25%88,590$17,868,60488,590New$201.713F
STAASTAAR SURGICAL CO2.23%658,317$17,688,977658,317New$26.8713F
HBIHANESBRANDS INC1.88%2,264,676$14,924,2162,264,676New$6.5913F
CORZCORE SCIENTIFIC INC NEW1.78%785,446$14,090,901785,446New$17.9413F
DAYDAYFORCE INC1.6%183,721$12,656,539183,721New$68.8913F
VMEOVIMEO INC1.52%1,555,942$12,058,5511,555,942New$7.7513F
MGRCMCGRATH RENTCORP1.47%99,363$11,648,3251380.14%$117.2313F
PROPROS HOLDINGS INC1.42%492,502$11,283,222492,502New$22.9113F
IASINTEGRAL AD SCIENCE HLDNG CO1.37%1,071,160$10,893,6981,071,160New$10.1713F
TECKTECK RESOURCES LTD1.16%209,900$9,212,511209,900New$43.8913F
TECKTECK RESOURCES LTD (Put)1.16%209,600$9,199,344209,600New$43.8913F
MRUSMERUS N V1.14%96,000$9,038,40096,000New$94.1513F
MRUSMerus NV (Put)1.14%96,000$9,038,40096,000New$94.1513F
VRNAVERONA PHARMA PLC (Put)1.13%84,100$8,974,31184,100New$106.7113F
KKELLANOVA (Call)1.12%108,800$8,923,776108,800New$82.0213F
WOWWIDEOPENWEST INC1.01%1,558,174$8,040,1781,558,174New$5.1613F
PINCPREMIER INC0.98%278,420$7,740,076278,420New$27.813F
ETNB89BIO INC (Call)0.91%493,500$7,254,450493,500New$14.713F
SPOTSPOTIFY USA INC (PRN)0.86%5,000,000$6,832,500No Change$1.3713F
PGREPARAMOUNT GROUP INC0.79%958,918$6,271,324958,918New$6.5413F
UBERUBER TECHNOLOGIES INC (PRN)0.77%5,000,000$6,090,000No Change$1.2213F
BAPRABOEING CO0.7%80,000$5,565,600No Change$69.5713F
COMPCOMPASS INC (Call)0.66%655,600$5,264,468655,600New$8.0313F
PRAPROASSURANCE CORP0.64%210,461$5,048,959-336,894-61.55%$23.9913F
HOUSANYWHERE REAL ESTATE INC0.61%456,600$4,835,394456,600New$10.5913F
HOUSANYWHERE REAL ESTATE INC (Put)0.61%456,600$4,835,394456,600New$10.5913F
BSYBENTLEY SYS INC (PRN)0.59%5,000,000$4,712,135No Change$0.9413F
AKAMAKAMAI TECHNOLOGIES INC (PRN)0.54%4,500,000$4,305,609No Change$0.9613F
RDFNREDFIN CORP (PRN)0.53%4,500,000$4,166,938No Change$0.9313F
CVACCUREVAC N V0.52%762,138$4,107,924-194,893-20.36%$5.3913F
TXNMTXNM ENERGY INC (PRN)0.5%3,000,000$3,969,576No Change$1.3213F
HALOHALOZYME THERAPEUTICS INC (PRN)0.43%3,000,000$3,431,854No Change$1.1413F
DXCMDEXCOM INC (PRN)0.4%3,500,000$3,195,172No Change$0.9113F
BLBLACKLINE INC (PRN)0.38%3,071,000$2,991,154No Change$0.9713F
VRNTVERINT SYSTEMS INC (PRN)0.37%3,000,000$2,935,938No Change$0.9813F
SANDSANDSTORM GOLD LTD0.34%214,205$2,681,847214,205New$12.5213F
TRMLTOURMALINE BIO INC0.31%50,968$2,437,79950,968New$47.8313F
LBRDKLIBERTY BROADBAND CORP0.29%35,810$2,275,36735,810New$63.5413F
RPDRAPID7 INC (PRN)0.29%2,500,000$2,336,238No Change$0.9313F
GLADGLADSTONE CAP CORP (PRN)0.25%2,000,000$1,984,3832,000,000New$0.9913F
IPGINTERPUBLIC GROUP COS INC0.22%63,104$1,761,233-5,263-7.7%$27.9113F
CTLPCANTALOUPE INC0.21%160,907$1,700,787-783,996-82.97%$10.5713F
SCSSTEELCASE INC0.21%94,905$1,632,36694,905New$17.213F
EVHEVOLENT HEALTH INC (PRN)0.2%2,000,000$1,624,1392,000,000New$0.8113F
FUBOFUBOTV INC (PRN)0.2%1,591,000$1,577,576No Change$0.9913F
ZIMVZIMVIE INC0.17%72,353$1,370,36672,353New$18.9413F
MTALMAC COPPER LIMITED0.16%103,254$1,260,73136,58654.88%$12.2113F
AMWDAMERICAN WOODMARK CORPORATIO0.15%18,336$1,224,11118,336New$66.7613F
IMXIINTERNATIONAL MNY EXPRESS IN0.15%86,175$1,203,86586,175New$13.9713F
LYVLIVE NATION ENTERTAINMENT IN (Call)0.15%7,500$1,225,500-2,500-25%$163.413F
RWTREDWOOD TRUST INC (PRN)0.13%1,000,000$1,023,1041,000,000New$1.0213F
MTSRMETSERA INC0.12%18,730$980,14118,730New$52.3313F
MTSRMETSERA INC (Put)0.12%18,700$978,57118,700New$52.3313F
MRCMRC GLOBAL INC0.11%58,605$845,08458,605New$14.4213F
NWENORTHWESTERN ENERGY GROUP IN0.11%14,303$838,29914,303New$58.6113F
CCRNCROSS CTRY HEALTHCARE INC0.08%42,897$609,137-16,440-27.71%$14.213F
BRYBERRY CORP0.07%142,979$540,461142,979New$3.7813F
SHCOSOHO HOUSE & CO INC0.07%65,542$580,04765,542New$8.8513F
PHLTPERFORMANT HEALTHCARE INC0.07%72,772$562,52872,772New$7.7313F
CCRDCORECARD CORPORATION0.06%16,595$446,73716,595New$26.9213F
PVBCPROVIDENT BANCORP INC0.06%40,282$504,73321,709116.88%$12.5313F
CIOCITY OFFICE REIT INC0.05%54,317$378,04654,317New$6.9613F
HONEHARBORONE BANCORP INC NEW0.04%22,464$305,5102,74813.94%$13.613F
AURAAURA BIOSCIENCES INC0.00808%10,372$64,09910,372New$6.1813F
PACBPACIFIC BIOSCIENCES CALIF IN0.00577%35,754$45,76535,754New$1.2813F
AMEDAMEDISYS INC-561,814Exited13F
ANSSANSYS INC-113,285Exited13F
BNTXBIONTECH SE (Call)-4,800Exited13F
BPMCBLUEPRINT MEDICINES CORP-116,631Exited13F
BRDGBRIDGE INVT GROUP HLDGS INC-80,349Exited13F
BRKLBROOKLINE BANCORP INC DEL-84,076Exited13F
CVXCHEVRON CORP NEW (Call)-280,300Exited13F
BASECOUCHBASE INC-363,000Exited13F
DANDANA INC (Put)-25,000Exited13F
DKSDICKS SPORTING GOODS INC (Call)-12,700Exited13F
DNBDUN & BRADSTREET HLDGS INC-3,147,738Exited13F
ETWOE2OPEN PARENT HOLDINGS INC-3,185,939Exited13F
EVRIEVERI HLDGS INC (Put)-42,000Exited13F
FAROFARO TECHNOLOGIES INC-383,836Exited13F
FLFOOT LOCKER INC-777,436Exited13F
FLFOOT LOCKER INC (Put)-178,000Exited13F
FYBRFRONTIER COMMUNICATIONS PARE-109,783Exited13F
GMSGMS INC-88,627Exited13F
GMSGMS INC (Call)-81,300Exited13F
HRIHERC HLDGS INC-2,605Exited13F
HESHESS CORP-260,459Exited13F
INFAINFORMATICA INC (Call)-366,600Exited13F
INZYINOZYME PHARMA INC-201,776Exited13F
LQDISHARES TR (Put)-50,000Exited13F
JNPRJUNIPER NETWORKS INC-928,961Exited13F
KKELLANOVA-53,318Exited13F
PPBIPACIFIC PREMIER BANCORP-532,149Exited13F
RKTROCKET COS INC-46,367Exited13F
RDUSRADIUS RECYCLING INC-94,670Exited13F
STRSITIO ROYALTIES CORP-333,703Exited13F
SKXSKECHERS U S A INC-426,562Exited13F
SKXSKECHERS U S A INC (Call)-139,000Exited13F
SKXSKECHERS U S A INC (Put)-286,100Exited13F
SSBKSOUTHERN STS BANCSHARES INC-7,204Exited13F
SPTNSPARTANNASH CO-302,396Exited13F
SWTXSPRINGWORKS THERAPEUTICS INC-703,525Exited13F
SWTXSPRINGWORKS THERAPEUTICS INC (Put)-189,900Exited13F
SGRYSURGERY PARTNERS INC (Call)-10,000Exited13F
TGITRIUMPH GROUP INC NEW-220,294Exited13F
VERVVERVE THERAPEUTICS INC-335,593Exited13F
VERVVERVE THERAPEUTICS INC (Put)-336,000Exited13F
PARAPARAMOUNT GLOBAL-567,122Exited13F
PARAPARAMOUNT GLOBAL (Put)-185,200Exited13F
VIGLVIGIL NEUROSCIENCE INC-207,667Exited13F
WBAWALGREENS BOOTS ALLIANCE INC-593,196Exited13F
WBAWALGREENS BOOTS ALLIANCE INC (Call)-644,300Exited13F
WBAWALGREENS BOOTS ALLIANCE INC (Put)-820,000Exited13F
WTWISDOMTREE INC (PRN)-1,500,000Exited13F
ESGRENSTAR GROUP LIMITED-53,653Exited13F
GBGLOBAL BLUE GROUP HOLDING AG-92,725Exited13F