# US TREASURY N/B UNITED STATES TREASURY NOTE/BOND

US TREASURY N/B UNITED STATES TREASURY NOTE/BOND is a security (CUSIP 912810UF3) tracked across SEC portfolio filings. 26 registered fund positions totaling $597.9M via N-PORT as of 2026-05-31.

## Summary

- Issuer: US TREASURY N/B
- Class: UNITED STATES TREASURY NOTE/BOND
- CUSIP: 912810UF3
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 26
- N-PORT value: $597.9M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

_Showing 15 of 26 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [T. Rowe Price New Income Fund, Inc.](https://search.stillhousedata.com/fund/S000002136) | T. ROWE PRICE NEW INCOME FUND, INC. | $165.6M | 94.67% |
| [Bond Fund](https://search.stillhousedata.com/fund/S000000646) | John Hancock Sovereign Bond Fund | $153.3M | 57.84% |
| [Lord Abbett Total Return Fund](https://search.stillhousedata.com/fund/S000007280) | LORD ABBETT INVESTMENT TRUST | $59.4M | 164.58% |
| [AFL CIO Housing Investment Trust](https://search.stillhousedata.com/fund/S000009768) | AFL CIO Housing Investment Trust | $53.8M | 72.00% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $31.4M | 5.33% |
| [BlackRock Total Return Fund](https://search.stillhousedata.com/fund/S000004071) | BlackRock Bond Fund, Inc. | $24.5M | 13.79% |
| [MFS Income Fund](https://search.stillhousedata.com/fund/S000002491) | MFS Series Trust VIII | $19.5M | 23.80% |
| [Allspring Core Plus Bond Fund](https://search.stillhousedata.com/fund/S000007418) | ALLSPRING FUNDS TRUST | $16.9M | 15.39% |
| [PGIM Absolute Return Bond Fund](https://search.stillhousedata.com/fund/S000031707) | Prudential Investment Portfolios 9 | $12.2M | 35.10% |
| [T. Rowe Price QM U.S. Bond Index Fund](https://search.stillhousedata.com/fund/S000002166) | T. ROWE PRICE QM U.S. BOND INDEX FUND, INC. | $11.9M | 50.13% |
| [Harbor Core Bond Fund](https://search.stillhousedata.com/fund/S000061981) | HARBOR FUNDS | $10.6M | 63.49% |
| [Fidelity Advisor Mortgage Securities Fund](https://search.stillhousedata.com/fund/S000005133) | Fidelity Advisor Series II | $8.0M | 104.57% |
| [T. Rowe Price Total Return Fund](https://search.stillhousedata.com/fund/S000055582) | T. ROWE PRICE TOTAL RETURN FUND, INC. | $5.4M | 88.38% |
| [Capital Income Builder](https://search.stillhousedata.com/fund/S000009000) | Capital Income Builder | $3.8M | 0.30% |
| [T. Rowe Price Spectrum Moderate Growth Allocation Fund](https://search.stillhousedata.com/fund/S000002138) | T. ROWE PRICE SPECTRUM FUNDS II, INC. | $3.7M | 8.53% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/912810UF3.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.