WATER ISLAND CAPITAL LLC

Q1 2026 13F Holdings

  • Location
    new york, NY
  • Num holdings

    98

  • Value ($000)

    $895,645

  • Date Filed
    05/15/2026
  • Form type
    13F-HR
  • CIK
    0001222765
  • All SEC filings
  • Note
    Holdings aggregated across “other managers” listed in original SEC filing, see here for detailed holdings broken out by other managers
Compare Q1 2026 to
Select Quarter
Issuer Name
Class
CUSIP
VALUE
%
Shares
Principal
Option Type
EA

ELECTRONIC ARTS INC

EQUITY
$50.94M
6 %

249,888

---

JANUS HENDERSON GROUP PLC

EQUITY
$47.38M
5 %

922,277

WBD

WARNER BROS DISCOVERY INC

EQUITY
$44.4M
5 %

1,617,020

HOLX

HOLOGIC INC

EQUITY
$42.33M
5 %

560,045

TXNM

TXNM ENERGY INC

EQUITY
$39.45M
4 %

674,867

PEN

PENUMBRA INC

EQUITY
$39.44M
4 %

120,095

GTLS

CHART INDS INC

EQUITY
$39.27M
4 %

189,939

---

NORFOLK SOUTHN CORP

EQUITY
$38.47M
4 %

134,051

3M4

MASIMO CORP

EQUITY
$34.54M
4 %

194,197

---

ELECTRONIC ARTS INC

EQUITY PUT
$30.54M
3 %

149,800

put
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