# Bridge Builder Municipal Bond Fund

Bridge Builder Municipal Bond Fund is a registered fund series of Bridge Builder Trust (series S000050632). Net assets $20.1B as of 2026-03-31.

## Profile

- Series ID: S000050632
- Registrant: Bridge Builder Trust
- LEI: 5493003VPO8RCMPVYN16
- Net assets: $20.1B
- Total assets: $20.3B
- As of: 2026-03-31

## Advisers

- [MacKay Shields LLC (Subadvisor)](https://search.stillhousedata.com/firm/107717)
- [BLACKROCK INVESTMENT MANAGEMENT, LLC (Subadvisor)](https://search.stillhousedata.com/firm/108928)
- [FIAM, LLC (Subadvisor)](https://search.stillhousedata.com/firm/133196)
- [OLIVE STREET INVESTMENT ADVISERS LLC (Advisor)](https://search.stillhousedata.com/firm/166710)
- [ROBERT W. BAIRD AND CO., INC. (Subadvisor)](https://search.stillhousedata.com/firm/8158)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [FIDELITY INV MMKT GOVT-INST](https://search.stillhousedata.com/security/31607A703) | — | $545.3M | 270.79% |
| [SOUTHEAST ENERGY A 5% 10/01/30](https://search.stillhousedata.com/security/84136HCT8) | — | $125.8M | 62.47% |
| [KENTUCKY ST PUBLI V/R 01/01/55](https://search.stillhousedata.com/security/74440DFC3) | — | $77.7M | 38.60% |
| [CALIFORNIA CMNTY  V/R 01/01/55](https://search.stillhousedata.com/security/13013JEA0) | — | $60.4M | 30.00% |
| [PUERTO RICO SA 4.329% 07/01/40](https://search.stillhousedata.com/security/74529JRH0) | — | $56.4M | 28.01% |
| [MIAMI-DADE CNTY FL 5% 10/01/32](https://search.stillhousedata.com/security/59333P7J1) | — | $54.8M | 27.22% |
| [CHICAGO IL BRD OF  6% 04/01/46](https://search.stillhousedata.com/security/167510AA4) | — | $53.6M | 26.61% |
| [TENNESSEE ST ENERG 5% 12/01/35](https://search.stillhousedata.com/security/880443JM9) | — | $49.8M | 24.72% |
| [HARRIS CNTY TX CU V/R 12/01/60](https://search.stillhousedata.com/security/414009TJ9) | — | $49.2M | 24.41% |
| [SOUTHEAST ENERGY  V/R 10/01/55](https://search.stillhousedata.com/security/84136HAH6) | — | $46.8M | 23.23% |
| [TARRANT CNTY TX C V/R 11/15/51](https://search.stillhousedata.com/security/87638TJX2) | — | $45.1M | 22.42% |
| [MAIN STREET ENERGY 5% 12/01/33](https://search.stillhousedata.com/security/560354AE2) | — | $44.8M | 22.24% |
| [SAN FRANCISCO CA C 5% 05/01/33](https://search.stillhousedata.com/security/79766DVM8) | — | $44.3M | 21.98% |
| [MAIN STREET NATUR V/R 12/01/53](https://search.stillhousedata.com/security/56035DGC0) | — | $43.1M | 21.40% |
| [LAS VEGAS VLY NV W 5% 06/01/39](https://search.stillhousedata.com/security/517845GK3) | — | $42.5M | 21.09% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $20.1B |
| 2025-12-31 | $19.3B |
| 2025-09-30 | $18.4B |
| 2025-06-30 | $17.3B |
| 2025-03-31 | $16.6B |
| 2024-12-31 | $15.9B |
| 2024-09-30 | $15.4B |
| 2024-06-30 | $14.5B |

## More

- [Registrant: Bridge Builder Trust](https://search.stillhousedata.com/registrant/1567101)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000050632.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.