# SOUTHERN CO UNIT 12/15/2028

SOUTHERN CO UNIT 12/15/2028 is a security (CUSIP 842587842) tracked across SEC portfolio filings. 40 institutional managers reported $1.8B on Form 13F as of 2026-06-30; 33 registered fund positions totaling $786.2M via N-PORT as of 2026-05-31.

## Summary

- Issuer: SOUTHERN CO
- Class: UNIT 12/15/2028
- CUSIP: 842587842
- Asset category: EP
- 13F holders: 40
- 13F value: $1.8B
- 13F period: 2026-06-30
- N-PORT fund positions: 33
- N-PORT value: $786.2M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 40 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| Capital World Investors | LOS ANGELES, CA | $598.4M | 11,642,572 |
| FRANKLIN RESOURCES INC | San Mateo, CA | $346.9M | 6,748,819 |
| [Voya Investment Management LLC](https://search.stillhousedata.com/firm/108934) | Atlanta, GA | $249.3M | 4,850,000 |
| BlackRock, Inc. | New York, NY | $122.5M | 2,461,903 |
| [Calamos Advisors LLC](https://search.stillhousedata.com/firm/105758) | NAPERVILLE, IL | $105.2M | 2,115,625 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Toronto, A6 | $101.1M | 1,953,007 |
| [Portman Square Capital LLP](https://search.stillhousedata.com/firm/319011) | London, X0 | $61.8M | 1,236,000 |
| ADVENT CAPITAL MANAGEMENT /DE/ | NEW YORK, NY | $58.1M | 1,121,375 |
| Nuveen, LLC | CHARLOTTE, NC | $33.2M | 646,883 |
| STATE STREET CORP | BOSTON, MA | $30.4M | 606,804 |
| CAMDEN ASSET MANAGEMENT L P /CA | Los Angeles, CA | $28.3M | 547,900 |
| VICTORY CAPITAL MANAGEMENT INC | San Antonio, TX | $25.0M | 503,000 |
| FMR LLC | BOSTON, MA | $22.5M | 434,859 |
| [Capital International, Inc./CA/](https://search.stillhousedata.com/firm/110682) | Los Angeles, CA | $10.5M | 204,103 |
| [SSI INVESTMENT MANAGEMENT LLC](https://search.stillhousedata.com/firm/104889) | Los Angeles, CA | $8.8M | 170,710 |

## Top fund holders (N-PORT)

_Showing 15 of 33 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Washington Mutual Investors Fund](https://search.stillhousedata.com/fund/S000009388) | Washington Mutual Investors Fund | $364.8M | 17.00% |
| [Income Fund of America](https://search.stillhousedata.com/fund/S000008814) | Income Fund of America | $208.1M | 14.20% |
| [T. Rowe Price Equity Income Fund](https://search.stillhousedata.com/fund/S000002076) | T. ROWE PRICE EQUITY INCOME FUND, INC. | $42.9M | 26.55% |
| CALAMOS CONVERTIBLE & HIGH INCOME FUND | CALAMOS CONVERTIBLE & HIGH INCOME FUND | $15.6M | 152.55% |
| CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND | CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND | $14.8M | 153.22% |
| CALAMOS STRATEGIC TOTAL RETURN FUND | CALAMOS STRATEGIC TOTAL RETURN FUND | $12.8M | 36.73% |
| [Fidelity Convertible Securities Fund](https://search.stillhousedata.com/fund/S000006969) | Fidelity Financial Trust | $12.7M | 47.93% |
| Calamos Dynamic Convertible & Income Fund | Calamos Dynamic Convertible & Income Fund | $12.5M | 182.48% |
| TRI-CONTINENTAL Corp | TRI-CONTINENTAL Corp | $9.8M | 51.83% |
| [T. Rowe Price High Yield Fund, Inc.](https://search.stillhousedata.com/fund/S000002132) | T. ROWE PRICE HIGH YIELD FUND, INC. | $9.6M | 15.09% |
| John Hancock Tax-Advantaged Dividend Income Fund | John Hancock Tax-Advantaged Dividend Income Fund | $9.6M | 97.77% |
| John Hancock Premium Dividend Fund | John Hancock Premium Dividend Fund | $7.8M | 106.36% |
| Nuveen Real Asset Income and Growth Fund | Nuveen Real Asset Income and Growth Fund | $7.7M | 162.65% |
| [Columbia Variable Portfolio - Dividend Opportunity Fund](https://search.stillhousedata.com/fund/S000019857) | Columbia Funds Variable Series Trust II | $7.0M | 73.20% |
| Ellsworth Growth & Income Fund Ltd | Ellsworth Growth & Income Fund Ltd | $5.3M | 309.89% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/842587842.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.