# Tamalpais Asset Management

> Tamalpais Asset Management is an SEC-registered investment advisory firm in Larkspur, CA, registered since 2025, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated August 31, 2026.

- CRD: 301017
- Filed as: TAMALPAIS ASSET MANAGEMENT
- Legal name: Mount Tamalpais Asset Management, LLC
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Larkspur, CA
- Filing period: October 2026
- Form ADV filing dated: August 31, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/301017
- AdvisorCensus page: https://advisorcensus.com/firm/tamalpais-asset-management-larkspur-ca-301017

## Quick answers

**How is Tamalpais Asset Management compensated?**
On its Form ADV (Item 5.E, October 2026), Tamalpais Asset Management reports these compensation arrangements: a percentage of assets under its management.

**Where is Tamalpais Asset Management located?**
Tamalpais Asset Management's principal office is in Larkspur, CA, according to its Form ADV; the September 2026 filing also lists 1 other office (Schedule D, Section 1.F).

**Is Tamalpais Asset Management registered with the SEC or a state?**
Tamalpais Asset Management is an SEC-registered investment advisory firm, registered since 2025. Status as filed: Approved. CRD 301017.

**How much does Tamalpais Asset Management manage?**
Tamalpais Asset Management reports $262,510,224 in regulatory assets under management in its Form ADV filing dated August 31, 2026 (100% discretionary).

**How have Tamalpais Asset Management's assets and staff changed since 2025?**
In the Form ADV data for Tamalpais Asset Management: Regulatory assets under management: $209,461,440 in the October 2025 data and $262,510,224 in the October 2026 data, up 25%. Total employees: 5 in October 2025 and 8 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Tamalpais Asset Management serve?**
By number of clients on Form ADV Item 5.D: individuals (other than high net worth individuals) (187); high net worth individuals (74); other (2).

**Which custodians does Tamalpais Asset Management use?**
Tamalpais Asset Management's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co., Inc. and Interactive Brokers LLC as custodians holding 10% or more of its separately managed account assets.

**Does Tamalpais Asset 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/301017

**Does Tamalpais Asset Management state an account minimum?**
Its Form ADV Part 2A brochure dated March 24, 2026 says: "There is no account minimum for any of TAM’s services."

**What changed in Tamalpais Asset Management's recent Form ADV filings?**
In the September 2026 filing data: Employees performing advisory functions went from 4 to 7. Added an office in Long Beach, CA.

## From the Form ADV filing

### Compensation (Item 5.E)
- A percentage of assets under your management

### Fees and minimums (Form ADV Part 2A brochure dated March 24, 2026)

- Account minimum: None

> There is no account minimum for any of TAM’s services.

As stated in the firm's brochure. Fees can differ by service and may be negotiable.

### Custodians (Schedule D, Section 5.K(3))
- Charles Schwab & Co., Inc.
- Interactive Brokers LLC

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.

### Regulatory assets under management (Item 5.F)
- Total: $262,510,224
- Discretionary: $262,510,224
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Individuals (other than high net worth individuals) | 187 | $61,234,949 |
| High net worth individuals | 74 | $200,865,761 |
| Banking or thrift institutions | 0 | $0 |
| Investment companies | 0 | $0 |
| Business development companies | 0 | $0 |
| Pooled investment vehicles (other than investment companies and business development companies) | 0 | $0 |
| Pension and profit sharing plans (but not the plan participants or government pension plans) | 0 | $0 |
| Charitable organizations | 1 | $64,774 |
| State or municipal government entities (including government pension plans) | 0 | $0 |
| Other investment advisers | 0 | $0 |
| Insurance companies | 0 | $0 |
| Sovereign wealth funds and foreign official institutions | 0 | $0 |
| Corporations or other businesses not listed above | 0 | $0 |
| Other | 2 | $344,740 |

### Advisory services (Item 5.G)
- Financial planning services
- Portfolio management for individuals and/or small businesses

### Firm details
- Registered since: 2025 (1 year)
- Employees: 8 total, 7 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CA, NY, TX, WA
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Other offices (Schedule D, Section 1.F), as of the September 2026 filing
- Long Beach, CA

### Websites listed on Form ADV (Item 1.I)
- tamalpaisam.com

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2025 | $209,461,440 | 5 | June 24, 2025 |
| October 2026 | $262,510,224 | 8 | August 31, 2026 |

Regulatory assets under management: $209,461,440 in the October 2025 data and $262,510,224 in the October 2026 data, up 25%.
Total employees: 5 in October 2025 and 8 in October 2026.

## Changes in the filing (last 12 months)

### September 2026
- Employees performing advisory functions went from 4 to 7.
- Added an office in Long Beach, CA.

### January 2026
- Employees performing advisory functions went from 5 to 4.
- Regulatory assets under management went from $209,461,440 to $251,000,000 (+20%).
- No longer lists an office in Dade City, FL.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Tamalpais Asset Management (CRD 301017): Form ADV filing data as of October 2026.