×

Subscribe Today

Get our free articles delivered directly to your email!

Continue reading

  • 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: $895.64 M
Last 13-F Filed: Q1 2026
Concentration in top 10: 45.42%
Filter by:
Quarter to View:
Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
PENPENUMBRA INC4.4%120,095$39,435,596120,095New$328.3713F
MASIMASIMO CORP3.86%194,197$34,541,821194,197New$177.8713F
EAELECTRONIC ARTS INC (Put)3.41%149,800$30,539,726149,800New$203.8713F
WBSWEBSTER FINL CORP3.22%415,823$28,866,433415,823New$69.4213F
TPHTRI POINTE HOMES INC2.8%536,367$25,064,430536,367New$46.7313F
NSANATIONAL STORAGE AFFILIATES2.43%576,224$21,746,694576,224New$37.7413F
GLDDGREAT LAKES DREDGE & DOCK CO2.4%1,263,580$21,480,8601,263,580New$1713F
ACLXARCELLX INC2.35%183,409$21,059,022183,409New$114.8213F
DAWNDAY ONE BIOPHARMACEUTICALS I2.26%944,247$20,244,656944,247New$21.4413F
DAWNDAY ONE BIOPHARMACEUTICALS I (Put)2.01%839,700$18,003,168839,700New$21.4413F
STELSTELLAR BANCORP INC1.76%431,231$15,787,367431,231New$36.6113F
EHABENHABIT INC1.55%984,611$13,873,170984,611New$14.0913F
SLABSILICON LABORATORIES INC1.36%58,417$12,159,49958,417New$208.1513F
VREVERIS RESIDENTIAL INC1.26%597,390$11,272,750597,390New$18.8713F
PKSTPEAKSTONE REALTY TRUST1.17%503,583$10,519,849503,583New$20.8913F
SLABSILICON LABORATORIES INC (Put)1.11%47,600$9,907,94047,600New$208.1513F
TERNTERNS PHARMACEUTICALS INC1.11%188,500$9,937,720188,500New$52.7213F
TERNTERNS PHARMACEUTICALS INC (Put)1.11%188,500$9,937,720188,500New$52.7213F
KWKENNEDY-WILSON HOLDINGS INC1%825,652$8,933,555825,652New$10.8213F
ZIMZIM INTEGRATED SHIPPING SERV0.98%331,800$8,742,930331,800New$26.3513F
ZIMZIM INTEGRATED SHIPPING SERV (Put)0.98%331,800$8,742,930331,800New$26.3513F
TXNMTXNM ENERGY INC (PRN)0.9%6,000,000$8,098,7503,000,000New$1.3513F
SANBANCO SANTANDER SA (Call)0.86%681,700$7,689,576681,700New$11.2813F
UNFUNIFIRST CORP MASS0.72%25,743$6,476,68125,743New$251.5913F
APLSAPELLIS PHARMACEUTICALS INC0.54%120,500$4,847,715120,500New$40.2313F
APLSAPELLIS PHARMACEUTICALS INC (Put)0.54%120,500$4,847,715120,500New$40.2313F
AESAES CORP0.29%185,833$2,618,387185,833New$14.0913F
AAUCALLIED GOLD CORP0.25%72,785$2,255,31072,785New$30.9913F
OSONESTREAM INC0.24%91,120$2,186,88091,120New$2413F
NATLNCR ATLEOS CORPORATION0.19%38,939$1,696,96238,939New$43.5813F
SEMSELECT MED HLDGS CORP0.19%103,467$1,685,477103,467New$16.2913F
THRTHERMON GROUP HLDGS INC0.19%32,987$1,662,54532,987New$50.413F
CNTACENTESSA PHARMACEUTICALS PLC0.18%41,000$1,628,52041,000New$39.7213F
CNTACENTESSA PHARMACEUTICALS PLC (Put)0.18%41,000$1,628,52041,000New$39.7213F
SNCYSUN CTRY AIRLS HLDGS INC0.18%98,859$1,633,15198,859New$16.5213F
BABOEING CO0.16%7,234$1,439,7837,234New$199.0313F
STKLSUNOPTA INC0.14%196,514$1,273,411196,514New$6.4813F
CCOCLEAR CHANNEL OUTDOOR HLDGS0.13%478,517$1,134,085478,517New$2.3713F
IHSIHS HOLDING LIMITED0.13%137,615$1,132,571137,615New$8.2313F
MCWMISTER CAR WASH INC0.12%156,502$1,090,819156,502New$6.9713F
TALKTALKSPACE INC0.12%216,158$1,118,618216,158New$5.1813F
CTRACOTERRA ENERGY INC0.11%27,292$959,04127,292New$35.1413F
SKYTSKYWATER TECHNOLOGY INC0.11%34,536$946,63234,536New$27.4113F
AMRXAMNEAL PHARMACEUTICALS INC0.09%68,400$850,21268,400New$12.4313F
CZRCAESARS ENTERTAINMENT INC NE0.09%29,500$779,68529,500New$26.4313F
CVGWCALAVO GROWERS INC0.06%20,321$524,07920,321New$25.7913F
ELLAUDER ESTEE COS INC0.06%7,500$538,2757,500New$71.7713F
NATHNATHANS FAMOUS INC0.06%4,994$503,0464,994New$100.7313F
PENNPENN ENTERTAINMENT INC0.06%35,000$526,05035,000New$15.0313F
BLFYBLUE FOUNDRY BANCORP0.05%35,658$472,11235,658New$13.2413F
SATSECHOSTAR CORP0.05%4,000$468,2804,000New$117.0713F
FFICFLUSHING FINL CORP0.05%30,161$463,27330,161New$15.3613F
ONTFON24 INC0.05%60,364$488,94860,364New$8.113F
UALUNITED AIRLS HLDGS INC0.05%5,000$460,3505,000New$92.0713F
ALKALASKA AIR GROUP INC0.04%10,265$377,54710,265New$36.7813F
PACBPACIFIC BIOSCIENCES CALIF IN0.04%272,040$359,093272,040New$1.3213F
VCTRVICTORY CAP HLDGS INC DEL0.04%5,120$335,2585,120New$65.4813F
VKTXVIKING THERAPEUTICS INC0.04%10,280$334,51110,280New$32.5413F
PYPLPAYPAL HLDGS INC0.03%5,124$231,7595,124New$45.2313F
UPSUNITED PARCEL SVCS INC0.03%2,520$247,9182,520New$98.3813F