# Columbia Pipelines Operating Company LLC COLUMBIA PIPELINES OPERATING C SR UNSECURED 144A 11/33 6.036

Columbia Pipelines Operating Company LLC COLUMBIA PIPELINES OPERATING C SR UNSECURED 144A 11/33 6.036 is a security (CUSIP 19828TAB2) tracked across SEC portfolio filings. 14 registered fund positions totaling $35.8M via N-PORT as of 2026-05-31.

## Summary

- Issuer: Columbia Pipelines Operating Company LLC
- Class: COLUMBIA PIPELINES OPERATING C SR UNSECURED 144A 11/33 6.036
- CUSIP: 19828TAB2
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 14
- N-PORT value: $35.8M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Bond Fund](https://search.stillhousedata.com/fund/S000000646) | John Hancock Sovereign Bond Fund | $21.9M | 8.25% |
| [Harbor Core Bond Fund](https://search.stillhousedata.com/fund/S000061981) | HARBOR FUNDS | $8.3M | 49.54% |
| [John Hancock Managed Account Shares Investment-Grade Corporate Bond Portfolio](https://search.stillhousedata.com/fund/S000065848) | John Hancock Strategic Series | $2.1M | 40.34% |
| [Virtus Newfleet Multi-Sector Intermediate Bond Series](https://search.stillhousedata.com/fund/S000001950) | Virtus Variable Insurance Trust | $716K | 87.06% |
| [Core Fixed Income Fund](https://search.stillhousedata.com/fund/S000008437) | MORGAN STANLEY PATHWAY FUNDS | $634K | 3.47% |
| [Transamerica Janus Balanced VP](https://search.stillhousedata.com/fund/S000025012) | TRANSAMERICA SERIES TRUST | $537K | 7.01% |
| [Catholic Values Fixed Income Fund](https://search.stillhousedata.com/fund/S000048321) | SEI CATHOLIC VALUES TRUST | $460K | 20.41% |
| Western Asset Investment Grade Income Fund Inc. | Western Asset Investment Grade Income Fund Inc. | $306K | 24.67% |
| [Six Circles Global Bond Fund](https://search.stillhousedata.com/fund/S000068181) | SIX CIRCLES TRUST | $295K | 0.17% |
| Western Asset Investment Grade Opportunity Trust Inc. | Western Asset Investment Grade Opportunity Trust Inc. | $264K | 25.31% |
| John Hancock Income Securities Trust | John Hancock Income Securities Trust | $201K | 14.12% |
| [Western Asset SMASh Series Core Completion Fund](https://search.stillhousedata.com/fund/S000069099) | Legg Mason Partners Institutional Trust | $127K | 12.87% |
| [PGIM Global Total Return (USD Hedged) Fund](https://search.stillhousedata.com/fund/S000059804) | Prudential Global Total Return Fund, Inc. | $53K | 16.89% |
| MFS CHARTER INCOME TRUST | MFS CHARTER INCOME TRUST | $19K | 0.70% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/19828TAB2.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.