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MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in WAY — Waystar Holding Corp.

CIK 912938 Boston, MA

Position in WAY

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$38,157,884
New position
Shares Held
1,582,658
first reported quarter
Ownership
0.825%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2026
1 quarter on record
Voting authority Sole 99.96082539626376.ToString("F0")% Shared 0.03917460373624624.ToString("F0")% None 0.ToString("F0")%

Position in Health Information Services

Healthcare · as of Mar 31, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $95,162,367 across 6 Health Information Services names. WAY ranks #1 (40.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 WAY
Waystar Holding Corp.
This page
1,582,658 $38,157,884

All Filings in WAY

Export CSV
1 filing row on record
Report Date Value (USD) Shares
2026-03-31 $38,157,884 1,582,658