716 institutions reported holding Willis Towers as of 2026-03-31, totalling $27.2B. Sourced from SEC Form 13F filings, filed up to 45 days after quarter end.
#
Institution
Value
1
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
$2.6B
2
BlackRock, Inc.
$2.4B
3
Dodge & Cox
$2.1B
4
VANGUARD CAPITAL MANAGEMENT LLC
$1.8B
5
HARRIS ASSOCIATES L P
$1.7B
Source: SEC Form 13F filings via SEC EDGAR. Covers long US-listed equity only — short positions, bonds and non-US holdings are not reported on this form.