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WATER ISLAND CAPITAL LLC

Q3 2025 · 13F-HR

WATER ISLAND CAPITAL LLCholdings as filed

Filed 2025-11-14 · accession 0001222765-25-000021

$793.3M
Reported value
84
Positions
2025-09-30
Period end
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The Brief · WATER ISLAND CAPITAL LLC · Q3 2025

AI · grounded in 13F

Water Island Capital LLC established a new position in CyberArk Software Ltd CYBR valued at $41.5M. The fund also initiated new stakes in Norfolk Southern Corp NSC for $37.8M and Verona Pharma PLC VRNA for $31.0M. Additional new positions include AvidXchange Holdings Inc AVDX and Informatica Inc INFA1EUR.

Holdings as filed

CUSIPTickerIssuerValue% port.SharesClassVoting
M2682V108CYBRCYBERARK SOFTWARE LTD$41.5M5.23%85,799CommonSOLE
655844108NSCNORFOLK SOUTHN CORP$37.8M4.76%125,799CommonSOLE
925050106VRNAVERONA PHARMA PLC$31.0M3.90%290,182CommonSOLE
05368X102AVDXAVIDXCHANGE HOLDINGS INC$28.7M3.62%2,882,867CommonSOLE
45674M101INFA1EURINFORMATICA INC$28.6M3.60%1,149,598CommonSOLE
923451108VBTXVERITEX HLDGS INC$27.4M3.45%815,698CommonSOLE
69349H107TXNMTXNM ENERGY INC$25.5M3.21%450,660CommonSOLE
16115Q308GTLSCHART INDS INC$25.5M3.21%127,171CommonSOLE
87901J105TGNATEGNA INC$24.9M3.14%1,223,508CommonSOLE
92343X100VTYVERINT SYS INC$24.4M3.07%1,202,967CommonSOLE
73754Y100PTBPOTBELLY CORP$23.0M2.90%1,351,588CommonSOLE
G053845018ZVASPEN INSURANCE HOLDINGS LTD$22.8M2.87%620,249CommonSOLE
G98196101W9N0WNS HLDGS LTD$22.6M2.85%296,042CommonSOLE
87161C501SYU1SYNOVUS FINL CORP$20.7M2.61%421,500CommonSOLE
87161C951SYNOVUS FINL CORP$20.7M2.61%421,500PUTSOLE
00912X302ALAIR LEASE CORP$19.1M2.41%300,677CommonSOLE
21874A956CORZCORE SCIENTIFIC INC NEW$18.7M2.36%1,042,000PUTSOLE
58985J105MERIDIANLINK INC$18.5M2.34%930,234CommonSOLE
G7T16G103S3PSAPIENS INTL CORP N V$18.1M2.28%421,434CommonSOLE
285512109EAELECTRONIC ARTS INC$17.9M2.25%88,590CommonSOLE
852312305STAASTAAR SURGICAL CO$17.7M2.23%658,317CommonSOLE
410345102HN9HANESBRANDS INC$14.9M1.88%2,264,676CommonSOLE
21874A106CORZCORE SCIENTIFIC INC NEW$14.1M1.78%785,446CommonSOLE
15677J108DAYDAYFORCE INC$12.7M1.60%183,721CommonSOLE
92719V100VMEO*VIMEO INC$12.1M1.52%1,555,942CommonSOLE
580589109MGRCMCGRATH RENTCORP$11.6M1.47%99,363CommonSOLE
74346Y103PROPROS HOLDINGS INC$11.3M1.42%492,502CommonSOLE
45828L108IASINTEGRAL AD SCIENCE HLDNG CO$10.9M1.37%1,071,160CommonSOLE
878742204TECKTECK RESOURCES LTD$9.2M1.16%209,900CommonSOLE
878742954TECKTECK RESOURCES LTD$9.2M1.16%209,600PUTSOLE
N5749R950Merus NV$9.0M1.14%96,000PUTSOLE
N5749R1002GHMERUS N V$9.0M1.14%96,000CommonSOLE
925050956VRNAVERONA PHARMA PLC$9.0M1.13%84,100PUTSOLE
487836908KKELLANOVA$8.9M1.12%108,800CALLSOLE
96758W101WOWWIDEOPENWEST INC$8.0M1.01%1,558,174CommonSOLE
74051N1022655957DPREMIER INC$7.7M0.98%278,420CommonSOLE
28255990389BIO INC$7.3M0.91%493,500CALLSOLE
84921RAB6SPOT 0 03/15/26SPOTIFY USA INC$6.8M0.86%5,000,000CommonSOLE
69924R1086PMPARAMOUNT GROUP INC$6.3M0.79%958,918CommonSOLE
90353TAJ9UBER 0 12/15/25UBER TECHNOLOGIES INC$6.1M0.77%5,000,000CommonSOLE
097023204BA 6 10/15/27BOEING CO$5.6M0.70%80,000CommonSOLE
20464U900COMPASS INC$5.3M0.66%655,600CALLSOLE
74267C106PRAPROASSURANCE CORP$5.0M0.64%210,461CommonSOLE
75605Y956ANYWHERE REAL ESTATE INC$4.8M0.61%456,600PUTSOLE
75605Y106ANYWHERE REAL ESTATE INC$4.8M0.61%456,600CommonSOLE
08265TAD1BSY 0.375 07/01/27BENTLEY SYS INC$4.7M0.59%5,000,000CommonSOLE
00971TAL5AKAM 0.375 09/01/27AKAMAI TECHNOLOGIES INC$4.3M0.54%4,500,000CommonSOLE
75737FAE8RDFN 0.5 04/01/27REDFIN CORP$4.2M0.53%4,500,000CommonSOLE
N2451R105CVACCUREVAC N V$4.1M0.52%762,138CommonSOLE
69349HAF4TXNM 5.75 06/01/54TXNM ENERGY INC$4.0M0.50%3,000,000CommonSOLE
40637HAD1HALO 0.25 03/01/27HALOZYME THERAPEUTICS INC$3.4M0.43%3,000,000CommonSOLE
252131AM9DXCM 0.375 05/15/28DEXCOM INC$3.2M0.40%3,500,000CommonSOLE
09239BAD1BL 0 03/15/26BLACKLINE INC$3.0M0.38%3,071,000CommonSOLE
92343XAC4VRNT 0.25 04/15/26VERINT SYSTEMS INC$2.9M0.37%3,000,000CommonSOLE
80013R206AYS1SANDSTORM GOLD LTD$2.7M0.34%214,205CommonSOLE
89157D105TRMLTOURMALINE BIO INC$2.4M0.31%50,968CommonSOLE
753422AF1RPD 0.25 03/15/27RAPID7 INC$2.3M0.29%2,500,000CommonSOLE
530307305LBRDKLIBERTY BROADBAND CORP$2.3M0.29%35,810CommonSOLE
376535AG5GLAD 5.875 10/01/30GLADSTONE CAP CORP$2.0M0.25%2,000,000CommonSOLE
460690100IPGINTERPUBLIC GROUP COS INC$1.8M0.22%63,104CommonSOLE
138103106UTE0CANTALOUPE INC$1.7M0.21%160,907CommonSOLE
858155203GJBSTEELCASE INC$1.6M0.21%94,905CommonSOLE
30050BAH4EVH 3.5 12/01/29EVOLENT HEALTH INC$1.6M0.20%2,000,000CommonSOLE
35953DAB0FUBO 3.25 02/15/26FUBOTV INC$1.6M0.20%1,591,000CommonSOLE
98888T107ZIMVZIMVIE INC$1.4M0.17%72,353CommonSOLE
G60409110MTALEURMAC COPPER LIMITED$1.3M0.16%103,254CommonSOLE
538034909LYVLIVE NATION ENTERTAINMENT IN$1.2M0.15%7,500CALLSOLE
030506109AMWDAMERICAN WOODMARK CORPORATIO$1.2M0.15%18,336CommonSOLE
46005L101IMXIINTERNATIONAL MNY EXPRESS IN$1.2M0.15%86,175CommonSOLE
758075AF2RWT 7.75 06/15/27REDWOOD TRUST INC$1.0M0.13%1,000,000CommonSOLE
59267L107METSERA INC$980,1410.12%18,730CommonSOLE
59267L957METSERA INC$978,5710.12%18,700PUTSOLE
55345K10337MMRC GLOBAL INC$845,0840.11%58,605CommonSOLE
668074305NWENORTHWESTERN ENERGY GROUP IN$838,2990.11%14,303CommonSOLE
227483104CCRNCROSS CTRY HEALTHCARE INC$609,1370.08%42,897CommonSOLE
58600110975ZSOHO HOUSE & CO INC$580,0470.07%65,542CommonSOLE
71377E105PFMTUSDPERFORMANT HEALTHCARE INC$562,5280.07%72,772CommonSOLE
08579X101BRYBERRY CORP$540,4610.07%142,979CommonSOLE
74383L105PROVIDENT BANCORP INC$504,7330.06%40,282CommonSOLE
45816D10035YCORECARD CORPORATION$446,7370.06%16,595CommonSOLE
178587101CIOCITY OFFICE REIT INC$378,0460.05%54,317CommonSOLE
41165Y1001S4HARBORONE BANCORP INC NEW$305,5100.04%22,464CommonSOLE
05153U107AURAAURA BIOSCIENCES INC$64,0990.01%10,372CommonSOLE
69404D108PACBPACIFIC BIOSCIENCES CALIF IN$45,7650.01%35,754CommonSOLE

Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.