2,863 institutions reported holding American Express as of 2026-03-31, totalling $174.8B. Sourced from SEC Form 13F filings, filed up to 45 days after quarter end.
#
Institution
Value
1
Warren Buffett — Berkshire Hathaway
$45.9B
2
BlackRock, Inc.
$12.7B
3
VANGUARD CAPITAL MANAGEMENT LLC
$10.0B
4
STATE STREET CORP
$8.8B
5
JPMORGAN CHASE & CO
$6.1B
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.