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  • 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: $895.64 M
Last 13-F Filed: Q1 2026
Concentration in top 10: 45.42%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
ALEXAlexander & Baldwin Inc-263,012Exited13F
FAmicus Therapeutics Inc (Call)-451,000Exited13F
ATXSAstria Therapeutics Inc-615,790Exited13F
RNAAvidity Biosciences Inc-168,385Exited13F
RNAAvidity Biosciences Inc (Put)-168,700Exited13F
BLBLACKLINE INC (PRN)-3,071,000Exited13F
BAPRABOEING CO/THE-80,000Exited13F
CADECadence Bank-297,603Exited13F
DAYDayforce Inc-47,453Exited13F
CDTXCidara Therapeutics Inc-150,708Exited13F
CDTXCidara Therapeutics Inc (Put)-76,900Exited13F
CIOCity Office REIT Inc-61,498Exited13F
CMAComerica Inc-398,037Exited13F
CFLTConfluent Inc-640,113Exited13F
CFLTCONFLUENT INC (PRN)-5,000,000Exited13F
CORZCore Scientific Inc (Call)-143,800Exited13F
DENNDenny's Corp-213,445Exited13F
DVAXDynavax Technologies Corp-610,261Exited13F
WTRGEssential Utilities Inc-36,646Exited13F
EVHEVOLENT HEALTH INC (PRN)-2,000,000Exited13F
EXASExact Sciences Corp-350,009Exited13F
FRGEForge Global Holdings Inc-197,075Exited13F
HIHillenbrand Inc-399,006Exited13F
HIHillenbrand Inc (Put)-315,000Exited13F
HOLXHologic Inc (Put)-60,600Exited13F
EBEventbrite Inc-987,653Exited13F
FSFGFirst Savings Financial Group-8,788Exited13F
ITRIITRON INC (PRN)-2,500,000Exited13F
JAMFJamf Holding Corp-985,069Exited13F
KVUEKenvue Inc (Call)-118,400Exited13F
KMBKimberly-Clark Corp (Call)-42,200Exited13F
SHCOSoho House & Co Inc-70,756Exited13F
MOFGMidWestOne Financial Group Inc-21,980Exited13F
NGDNew Gold Inc-226,878Exited13F
ZEUSOlympic Steel Inc-16,293Exited13F
PLYMPlymouth Industrial REIT Inc-559,215Exited13F
QRVOQorvo Inc-109,521Exited13F
REVGREV Group Inc-31,261Exited13F
HOUSAnywhere Real Estate Inc-444,821Exited13F
HOUSAnywhere Real Estate Inc (Call)-71,100Exited13F
HOUSAnywhere Real Estate Inc (Put)-71,100Exited13F
SPYMState Street SPDR S&P 500 ETF (Call)-25,000Exited13F
SPOTSPOTIFY USA INC (PRN)-5,000,000Exited13F
STAASTAAR Surgical Co-67,862Exited13F
SNVSynovus Financial Corp-403,650Exited13F
TECKTeck Resources Ltd (Put)-292,100Exited13F
TGNATEGNA Inc-1,179,885Exited13F
THSTreeHouse Foods Inc-99,421Exited13F
TRUETrueCar Inc-173,620Exited13F
AHLAspen Insurance Holdings Ltd-572,685Exited13F
AVDLAvadel Pharmaceuticals PLC-1,087,117Exited13F
CYBRCyberArk Software Ltd-86,648Exited13F