# Osterweis Strategic Investment Fund — new fund registration

PROFESSIONALLY MANAGED PORTFOLIOS registered 1 new fund series on Form 485APOS, filed 2010-06-17. Featured series: Osterweis Strategic Investment Fund.

## Registration

- Registrant / trust: PROFESSIONALLY MANAGED PORTFOLIOS
- CIK: 0000811030
- Form: 485APOS
- Filed: 2010-06-17
- State of incorporation: MA
- Accession: 0000894189-10-002268
- Reported net assets: $178.7M

## Series & classes (1)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [Osterweis Strategic Investment Fund](https://search.stillhousedata.com/fund/S000029833) | Investor Class | OSTVX | Yes |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.00%
- Gross expense ratio: 0.98%
- Management fee: 0.75%
- Net expense ratio: 1.51%
- Other expenses: 0.22%

## Investment objective

The Osterweis Growth & Income Fund (the Fund) seeks long-term total returns and capital preservation.

## Advisers

- [Osterweis Capital Management, LLC (Advisor)](https://search.stillhousedata.com/firm/109580)

## Other filings by this registrant (15)

- [485APOS — 2025-10-03 (1 new series)](https://search.stillhousedata.com/launch/0000894189-25-010703)
- [485APOS — 2025-08-15](https://search.stillhousedata.com/launch/0000894189-25-005619)
- [485APOS — 2025-02-26](https://search.stillhousedata.com/launch/0000894189-25-001262)
- [485APOS — 2024-10-01 (1 new series)](https://search.stillhousedata.com/launch/0000894189-24-006041)
- [485APOS — 2024-06-20 (1 new series)](https://search.stillhousedata.com/launch/0000894189-24-003664)
- [485APOS — 2024-02-28 (1 new series)](https://search.stillhousedata.com/launch/0000894189-24-001448)
- [485APOS — 2023-09-26](https://search.stillhousedata.com/launch/0000894189-23-007210)
- [485APOS — 2023-06-30 (1 new series)](https://search.stillhousedata.com/launch/0000894189-23-004566)
- [485APOS — 2023-05-26 (2 new series)](https://search.stillhousedata.com/launch/0000894189-23-003969)
- [485APOS — 2022-11-15 (1 new series)](https://search.stillhousedata.com/launch/0000894189-22-008320)
- [485APOS — 2022-09-30 (1 new series)](https://search.stillhousedata.com/launch/0000894189-22-007367)
- [485APOS — 2022-06-24 (2 new series)](https://search.stillhousedata.com/launch/0000894189-22-004486)

## More

- [Registrant profile: PROFESSIONALLY MANAGED PORTFOLIOS](https://search.stillhousedata.com/registrant/811030)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0000894189-10-002268.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.