DOSSIER · 13F Holders · Q2 2026
SO 4.2 10/15/60 C

Southern Co 4.20 Pfd

2 institutions still hold Southern Co 4.20 Pfd as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 842587883·2 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$188K
visible holders
Holders
2
filers reporting
Concentration
91.00%
BOYD WATTERSON ASSET MANAGEMENT LLC/OH #1
top holder share
AI Holders Summary · Q2 2026

2 institutions reported SO 4.2 10/15/60 C in Q2 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.

#HolderValueShares% port.Quarter
01
BOYD WATTERSON ASSET MANAGEMENT LLC/OH
CIK 0001121477
$171K10K0.05%Q2 2026
02
THOMPSON INVESTMENT MANAGEMENT, INC.
CIK 0001277279
$17K1K0.00%Q2 2026