WATER ISLAND CAPITAL LLC

Q2 2026 13F-HR Holdings

Location
New York, NY
Holdings as of
6/30/2026
Date filed
8/14/2026
Form type
13F-HR
Num holdings
85
Total value ($000)
$1,075,083
Net value change ($000)
+179,438 (20.0%)
New positions
32
Sold out positions
42
Turnover %
70.1%
Sector allocation + QoQ delta (equities-only)
Prev filing: 5/15/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q1 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
TMHC 52,190 NEW
CZR 38,849 4980.6%
RAMP 30,313 NEW
CPRX 29,350 NEW
D 26,034 NEW
ACA 25,221 NEW
TECH 23,719 NEW
WSR 23,277 NEW
ROKU 22,778 NEW
BLD 21,841 NEW
Top Reduces (Value $000, Stocks/ETFs)
HOLX -42,334 -100.0%
MASI -34,542 -100.0%
TPH -25,064 -100.0%
GLDD -21,481 -100.0%
ACLX -21,059 -100.0%
DAWN -20,245 -100.0%
EHAB -13,873 -100.0%
VRE -11,273 -100.0%
PKST -10,520 -100.0%
TERN -9,938 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 130,224 (12.1% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type