DOSSIER · 13F Holders · Q3 2026
SO 4.2 10/15/60 C
Southern Co 4.20 Pfd
2 institutions still hold Southern Co 4.20 Pfd as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 842587883·2 13F holders·last filed Sep 30, 2026
AI Holders Summary · Q3 2026
2 institutions reported SO 4.2 10/15/60 C in Q3 2026. BOYD WATTERSON ASSET MANAGEMENT LLC/OH leads at 91.0% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.