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Osterweis Capital Management

San Francisco, CASEC-registered investment adviserCRD 105421

Filed as OSTERWEIS CAPITAL MANAGEMENT · Legal name Osterweis Capital Management Inc

Osterweis Capital Management is an SEC-registered investment advisory firm in San Francisco, CA, registered since 1983, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated March 31, 2026.

43 years
registered since 1983
$439,351,047
assets under management
2 arrangements
Percentage of assets, Fixed fees
None
disclosure items (Item 11)

Quick answers

From the filing

How is Osterweis Capital Management compensated?

On its Form ADV (Item 5.E, October 2026), Osterweis Capital Management reports these compensation arrangements: a percentage of assets under its management; fixed fees (other than subscription fees).

Where is Osterweis Capital Management located?

Osterweis Capital Management's principal office is in San Francisco, CA, according to its Form ADV.

Is Osterweis Capital Management registered with the SEC or a state?

Osterweis Capital Management is an SEC-registered investment advisory firm, registered since 1983. Status as filed: Approved. CRD 105421.

How much does Osterweis Capital Management manage?

Osterweis Capital Management reports $439,351,047 in regulatory assets under management in its Form ADV filing dated March 31, 2026 (100% discretionary).

How have Osterweis Capital Management's assets and staff changed since 2021?

In the Form ADV data for Osterweis Capital Management: Regulatory assets under management: $495,840,874 in the October 2021 data and $439,351,047 in the October 2026 data, down 11%. Total employees: 61 in October 2021 and 66 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does Osterweis Capital Management serve?

By number of clients on Form ADV Item 5.D: high net worth individuals (33); investment companies (1).

Which custodians does Osterweis Capital Management use?

Osterweis Capital Management's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co Inc and Citibank NA as custodians holding 10% or more of its separately managed account assets.

Does Osterweis Capital Management report any disciplinary disclosures?

Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/105421

From the Form ADV filing

Every figure below is as the firm filed it with regulators, as of October 2026.

How the firm is compensated

Item 5.E
  • A percentage of assets under your management
  • Fixed fees (other than subscription fees)

Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ

Fees and minimums

Form ADV Part 2A

The brochure lists different fees for different services or strategies. See the firm's brochure (dated March 31, 2026) for its fees and any account minimum, on the SEC's IAPD site.

Regulatory assets under management

Item 5.F
$439,351,047

$439,351,047 as of October 2026, filing dated March 31, 2026.

Discretionary: $438,763,122.Non-discretionary: $587,925.

A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means

Who the firm serves

Item 5.D
High net worth individuals
Clients 33 Assets $275,910,569 (63%)
Banking or thrift institutions
Clients 0 Assets Not reported
Investment companies
Clients 1 Assets $148,374,163 (34%)
Business development companies
Clients 0 Assets Not reported
Pooled investment vehicles (other than investment companies and business development companies)
Clients 0 Assets Not reported
State or municipal government entities (including government pension plans)
Clients Fewer than 5 Assets $15,066,315 (3%)
Other investment advisers
Clients 0 Assets Not reported
Insurance companies
Clients 0 Assets Not reported
Sovereign wealth funds and foreign official institutions
Clients 0 Assets Not reported
Corporations or other businesses not listed above
Clients 0 Assets Not reported
Other
Clients 0 Assets Not reported

A firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.

Advisory services

Item 5.G
  • Financial planning services
  • Portfolio management for individuals and/or small businesses
  • Portfolio management for investment companies (and business development companies)
  • Portfolio management for businesses (other than small businesses) or institutional clients

Registration and firm details

Items 1, 2, 5
Legal name
Osterweis Capital Management Inc
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
1983 (43 years)
Employees
Total: 66. Performing investment advisory functions: 14.
Wrap fee program participation
No.
Custodians (Schedule D, Section 5.K(3))

Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.

States registered or notice-filed
3 states or jurisdictions
CANHNY

SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration

Disclosures

Item 11

None Reports no disclosure items on Form ADV Item 11. View on IAPD.

Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures

Assets and staff over time

Items 5.A, 5.F
$496M 2021 $445M 2022 $404M 2023 $445M 2024 $452M 2025 $439M 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$439,351,04766March 31, 2026
October 2025$452,327,34863April 1, 2025
October 2024$445,333,08860March 29, 2024
October 2023$403,800,13661March 31, 2023
October 2022$445,354,74264July 26, 2022
October 2021$495,840,87461March 30, 2021

Regulatory assets under management: $495,840,874 in the October 2021 data and $439,351,047 in the October 2026 data, down 11%.

Total employees: 61 in October 2021 and 66 in October 2026.

As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.

Changes in the filing

Last 12 months

No changes to these filed facts in the last 12 months of filing data.

Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.

Websites listed on Form ADV

Item 1.I
osterweis.com

Source: Form ADV, as of October 2026. Values appear as filed; a value the firm did not report is shown as "Not reported."

Cite this page

AdvisorCensus. Osterweis Capital Management (CRD 105421): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/osterweis-capital-management-san-francisco-ca-105421