# PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund

PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund is a ETF series of PIMCO ETF Trust (series S000085048). Net assets $1.1B as of 2026-03-31.

## Profile

- Series ID: S000085048
- Registrant: PIMCO ETF Trust
- LEI: 2549001WTPP9QU7A6W04
- Net assets: $1.1B
- Total assets: $3.7B
- As of: 2026-03-31
- Type: ETF

## Advisers

- [Pacific Investment Management Company LLC (Advisor)](https://search.stillhousedata.com/firm/104559)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F050650) | — | $88.9M | 786.03% |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F030660) | — | $66.8M | 591.18% |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F060667) | — | $66.3M | 586.19% |
| [GNMA PASS THRU POOLS](https://search.stillhousedata.com/security/21H032639) | — | $57.8M | 511.44% |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F042640) | — | $50.5M | 446.58% |
| CITIGROUP REPO REPO                     5807 | — | $45.0M | 398.09% |
| [GNMA PASS THRU POOLS](https://search.stillhousedata.com/security/21H022655) | — | $41.4M | 365.90% |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F060675) | — | $38.7M | 342.04% |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F020653) | — | $37.3M | 329.83% |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F022659) | — | $29.4M | 260.24% |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F030645) | — | $29.0M | 256.46% |
| [GNMA PASS THRU POOLS](https://search.stillhousedata.com/security/21H020659) | — | $28.7M | 254.23% |
| [GNMA PASS THRU POOLS](https://search.stillhousedata.com/security/21H040657) | — | $28.6M | 252.62% |
| [FHLMC PASS THRU POOLS](https://search.stillhousedata.com/security/3132DUFS1) | — | $27.7M | 245.30% |
| [UMBS PASS THRU POOLS](https://search.stillhousedata.com/security/01F050643) | — | $27.6M | 244.32% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $1.1B |
| 2025-12-31 | $961.8M |
| 2025-09-30 | $761.0M |
| 2025-06-30 | $533.8M |
| 2025-03-31 | $501.6M |
| 2024-12-31 | $220.4M |
| 2024-09-30 | $98.2M |

## More

- [Registrant: PIMCO ETF Trust](https://search.stillhousedata.com/registrant/1450011)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000085048.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.