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WATER ISLAND CAPITAL LLC

Position in OS — OneStream, Inc.

CIK 1222765 NEW YORK, NY

Position in OS

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$0
New position
Shares Held
91,120
first reported quarter
Ownership
0.037%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2026
1 quarter on record
Voting authority Sole 100% Shared 0% None 0%

Position in Software - Infrastructure

Technology · as of Jun 30, 2026

WATER ISLAND CAPITAL LLC holds $32,759,928 across 3 Software - Infrastructure names.

# Ticker Company Shares Value (USD) Open

All Filings in OS

Export CSV
1 filing row on record
Report Date Value (USD) Shares
2026-03-31 91,120