# Loomis Sayles Securitized Asset Fund

Loomis Sayles Securitized Asset Fund is a registered fund series of LOOMIS SAYLES FUNDS I (series S000006639). Net assets $1.6B as of 2026-03-31.

## Profile

- Series ID: S000006639
- Registrant: LOOMIS SAYLES FUNDS I
- LEI: 549300LK4FBVP0RT7L56
- Net assets: $1.6B
- Total assets: $2.3B
- As of: 2026-03-31

## Advisers

- [Loomis, Sayles & Company, L.P. (Advisor)](https://search.stillhousedata.com/firm/105377)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F052656) | — | $110.4M | 685.80% |
| [Fannie Mae](https://search.stillhousedata.com/security/3140FXVK5) | — | $76.7M | 476.59% |
| [Government National Mortgage Association](https://search.stillhousedata.com/security/21H050649) | — | $71.1M | 441.79% |
| [Fannie Mae](https://search.stillhousedata.com/security/3140QNBV3) | — | $61.7M | 383.63% |
| [Fannie Mae](https://search.stillhousedata.com/security/3140FXXA5) | — | $59.6M | 370.49% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F050643) | — | $59.2M | 367.69% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F042657) | — | $58.9M | 366.25% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F042640) | — | $47.2M | 293.07% |
| [Fannie Mae](https://search.stillhousedata.com/security/3140FX3M2) | — | $47.1M | 292.91% |
| [Freddie Mac](https://search.stillhousedata.com/security/3137HH4F5) | — | $33.8M | 210.28% |
| [Fannie Mae](https://search.stillhousedata.com/security/3136BYGK2) | — | $31.8M | 197.66% |
| [Fannie Mae](https://search.stillhousedata.com/security/3140FXWP3) | — | $30.9M | 191.78% |
| [Fannie Mae](https://search.stillhousedata.com/security/3140FXXE7) | — | $28.5M | 177.27% |
| [Fannie Mae](https://search.stillhousedata.com/security/3140Y6YM6) | — | $28.4M | 176.57% |
| [Freddie Mac](https://search.stillhousedata.com/security/3137HH6W6) | — | $26.8M | 166.72% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $1.6B |
| 2025-12-31 | $1.6B |
| 2025-09-30 | $1.6B |
| 2025-06-30 | $1.7B |
| 2025-03-31 | $1.7B |
| 2024-12-31 | $1.5B |
| 2024-09-30 | $1.5B |
| 2024-06-30 | $1.4B |

## More

- [Registrant: LOOMIS SAYLES FUNDS I](https://search.stillhousedata.com/registrant/917469)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000006639.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.