# Lyle & Forsyth Investment Managers

> Lyle & Forsyth Investment Managers is an SEC-registered investment advisory firm in San Rafael, CA, registered since 1982, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated March 3, 2026.

- CRD: 10603
- Filed as: LYLE & FORSYTH INVESTMENT MANAGERS
- Legal name: Lyle, Allan Glen
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: San Rafael, CA
- Filing period: October 2026
- Form ADV filing dated: March 3, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/10603
- AdvisorCensus page: https://advisorcensus.com/firm/lyle-and-forsyth-investment-managers-san-rafael-ca-10603

## Quick answers

**How is Lyle & Forsyth Investment Managers compensated?**
On its Form ADV (Item 5.E, October 2026), Lyle & Forsyth Investment Managers reports these compensation arrangements: a percentage of assets under its management. The amounts are in Item 5 of its Form ADV Part 2A brochure.

**Where is Lyle & Forsyth Investment Managers located?**
Lyle & Forsyth Investment Managers' principal office is in San Rafael, CA, according to its Form ADV.

**Is Lyle & Forsyth Investment Managers registered with the SEC or a state?**
Lyle & Forsyth Investment Managers is an SEC-registered investment advisory firm, registered since 1982. Status as filed: Approved. CRD 10603.

**How much does Lyle & Forsyth Investment Managers manage?**
Lyle & Forsyth Investment Managers reports $221,189,432 in regulatory assets under management in its Form ADV filing dated March 3, 2026 (43% discretionary).

**How have Lyle & Forsyth Investment Managers' assets and staff changed since 2021?**
In the Form ADV data for Lyle & Forsyth Investment Managers: Regulatory assets under management: $179,071,137 in the October 2021 data and $221,189,432 in the October 2026 data, up 24%. Total employees: 2 in October 2021 and 2 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Lyle & Forsyth Investment Managers serve?**
By number of clients on Form ADV Item 5.D: high net worth individuals (79).

**Which custodians does Lyle & Forsyth Investment Managers use?**
Lyle & Forsyth Investment Managers' most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co., Inc. as a custodian holding 10% or more of its separately managed account assets.

**Does Lyle & Forsyth Investment Managers 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/10603

## From the Form ADV filing

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

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

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: $221,189,432
- Discretionary: $94,430,663
- Non-discretionary: $126,758,769

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Individuals (other than high net worth individuals) | Fewer than 5 | $0 |
| High net worth individuals | 79 | $221,189,432 |
| Banking or thrift institutions | Fewer than 5 | $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) | Fewer than 5 | $0 |
| Charitable organizations | Fewer than 5 | $0 |
| State or municipal government entities (including government pension plans) | Fewer than 5 | $0 |
| Other investment advisers | Fewer than 5 | $0 |
| Insurance companies | Fewer than 5 | $0 |
| Sovereign wealth funds and foreign official institutions | Fewer than 5 | $0 |
| Corporations or other businesses not listed above | Fewer than 5 | $0 |

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

### Firm details
- Registered since: 1982 (44 years)
- Employees: 2 total, 1 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CA
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $179,071,137 | 2 | February 22, 2021 |
| October 2022 | $216,019,744 | 2 | March 2, 2022 |
| October 2023 | $185,829,598 | 2 | August 11, 2023 |
| October 2024 | $194,426,835 | 2 | March 13, 2024 |
| October 2025 | $203,489,691 | 2 | February 25, 2025 |
| October 2026 | $221,189,432 | 2 | March 3, 2026 |

Regulatory assets under management: $179,071,137 in the October 2021 data and $221,189,432 in the October 2026 data, up 24%.
Total employees: 2 in October 2021 and 2 in October 2026.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Lyle & Forsyth Investment Managers (CRD 10603): Form ADV filing data as of October 2026.