918 institutions reported holding Ameren as of 2026-03-31, totalling $25.7B. Sourced from SEC Form 13F filings, filed up to 45 days after quarter end.
#
Institution
Value
1
BlackRock, Inc.
$2.6B
2
PRICE T ROWE ASSOCIATES INC /MD/
$2.3B
3
VANGUARD CAPITAL MANAGEMENT LLC
$2.0B
4
VANGUARD PORTFOLIO MANAGEMENT LLC
$1.7B
5
STATE STREET CORP
$1.6B
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.