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

US TREASURY N/B UNITED STATES TREASURY NOTE/BOND is a security (CUSIP 912810TZ1) tracked across SEC portfolio filings. 17 registered fund positions totaling $1.3B via N-PORT as of 2026-05-31.

## Summary

- Issuer: US TREASURY N/B
- Class: UNITED STATES TREASURY NOTE/BOND
- CUSIP: 912810TZ1
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 17
- N-PORT value: $1.3B
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

_Showing 15 of 17 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. | $369.5M | 211.26% |
| [MFS Income Fund](https://search.stillhousedata.com/fund/S000002491) | MFS Series Trust VIII | $240.6M | 293.34% |
| [American Balanced Fund](https://search.stillhousedata.com/fund/S000008801) | American Balanced Fund | $219.8M | 8.33% |
| [Bond Fund of America](https://search.stillhousedata.com/fund/S000009231) | Bond Fund of America | $213.8M | 21.48% |
| [U.S. Government Securities Fund](https://search.stillhousedata.com/fund/S000009235) | AMERICAN FUNDS INCOME SERIES | $74.0M | 30.50% |
| [Harbor Core Bond Fund](https://search.stillhousedata.com/fund/S000061981) | HARBOR FUNDS | $64.2M | 384.10% |
| [Master Total Return Portfolio](https://search.stillhousedata.com/fund/S000004067) | Master Bond LLC | $30.6M | 16.22% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $28.1M | 4.78% |
| [AB Core Bond Portfolio](https://search.stillhousedata.com/fund/S000011057) | BERNSTEIN SANFORD C FUND INC | $19.2M | 42.80% |
| [T. Rowe Price Spectrum Moderate Growth Allocation Fund](https://search.stillhousedata.com/fund/S000002138) | T. ROWE PRICE SPECTRUM FUNDS II, INC. | $5.9M | 13.64% |
| [Bernstein Intermediate Duration Institutional Portfolio](https://search.stillhousedata.com/fund/S000011063) | BERNSTEIN SANFORD C FUND II INC | $4.9M | 57.87% |
| [Capital World Bond Fund](https://search.stillhousedata.com/fund/S000009240) | Capital World Bond Fund | $2.4M | 2.44% |
| [Six Circles Global Bond Fund](https://search.stillhousedata.com/fund/S000068181) | SIX CIRCLES TRUST | $2.0M | 1.15% |
| [American Funds Strategic Bond Fund](https://search.stillhousedata.com/fund/S000052313) | American Funds Strategic Bond Fund | $1.3M | 0.59% |
| [MFS Core Bond Fund](https://search.stillhousedata.com/fund/S000076470) | MFS SERIES TRUST XII | $929K | 274.75% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/912810TZ1.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.