# Harbor Ithaka

> Harbor Ithaka is an SEC-registered investment advisory firm in Aventura, FL, registered since 2018, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated March 31, 2026.

- CRD: 170580
- Filed as: HARBOR ITHAKA
- Legal name: Harbor Ithaka WM, LLC
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Aventura, FL
- Filing period: October 2026
- Form ADV filing dated: March 31, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/170580
- AdvisorCensus page: https://advisorcensus.com/firm/harbor-ithaka-aventura-fl-170580

## Quick answers

**How is Harbor Ithaka compensated?**
On its Form ADV (Item 5.E, October 2026), Harbor Ithaka reports these compensation arrangements: a percentage of assets under its management; fixed fees (other than subscription fees).

**What does Harbor Ithaka's brochure say about its fees?**
Its Form ADV Part 2A brochure dated March 27, 2026 states: Asset-based fee: 0.5% to 2.2% a year (a range, as the brochure states it). Fees can differ by service and may be negotiable; the brochure is the complete statement.

**Where is Harbor Ithaka located?**
Harbor Ithaka's principal office is in Aventura, FL, according to its Form ADV.

**Is Harbor Ithaka registered with the SEC or a state?**
Harbor Ithaka is an SEC-registered investment advisory firm, registered since 2018. Status as filed: Approved. CRD 170580.

**How much does Harbor Ithaka manage?**
Harbor Ithaka reports $171,150,927 in regulatory assets under management in its Form ADV filing dated March 31, 2026 (80% discretionary).

**How have Harbor Ithaka's assets and staff changed since 2021?**
In the Form ADV data for Harbor Ithaka: Regulatory assets under management: $107,144,672 in the October 2021 data and $171,150,927 in the October 2026 data, up 60%. Total employees: 8 in October 2021 and 7 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Harbor Ithaka serve?**
By number of clients on Form ADV Item 5.D: high net worth individuals (33); pooled investment vehicles (other than investment companies and business development companies) (10).

**Which custodians does Harbor Ithaka use?**
Harbor Ithaka's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Bank OZK, Morgan Stanley and Stonex Financial Inc. as custodians holding 10% or more of its separately managed account assets.

**Does Harbor Ithaka 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/170580

**Does Harbor Ithaka state an account minimum?**
Its Form ADV Part 2A brochure dated March 27, 2026 says: "This is in-line with the firm Advisor’s minimum account size of $2,500,000 and its schedule of fees for advisory services, so that if an Advisory client’s account is below certain dollar amount the minimum applied may represent a higher percentage amount than a regular percentage-based fee."

**What changed in Harbor Ithaka's recent Form ADV filings?**
In the April 2026 filing data: No longer lists the business name New Market Analytics WM. Employees performing advisory functions went from 2 to 3.

## From the Form ADV filing

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

### Fees and minimums (Form ADV Part 2A brochure dated March 27, 2026)

- Asset-based fee: 0.5% to 2.2% a year (a range, as the brochure states it)

> General: Depending on the type of investor, the firm’s Advisory Fees range from 0.50% to 2.20% per annum (payable on a quarterly, or monthly basis calculated as 1/12 of the agreed upon percentage fee multiplied by the Net Asset Value of each account).

- Account minimum: $2,500,000

> This is in-line with the firm Advisor’s minimum account size of $2,500,000 and its schedule of fees for advisory services, so that if an Advisory client’s account is below certain dollar amount the minimum applied may represent a higher percentage amount than a regular percentage-based fee.

- Minimum annual fee: $25,000

> Harbor Ithaka WM may charge clients a minimum fee of $25,000 per year regardless of account size.

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

### Custodians (Schedule D, Section 5.K(3))
- Bank OZK
- Morgan Stanley
- Stonex Financial 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: $171,150,927
- Discretionary: $137,122,493
- Non-discretionary: $34,028,434

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| High net worth individuals | 33 | $64,029,321 |
| Pooled investment vehicles (other than investment companies and business development companies) | 10 | $107,121,606 |

### Advisory services (Item 5.G)
- Portfolio management for individuals and/or small businesses
- Portfolio management for pooled investment vehicles (other than investment companies)
- Selection of other advisers (including private fund managers)

### Firm details
- Registered since: 2018 (8 years)
- Employees: 7 total, 3 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: FL
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Websites listed on Form ADV (Item 1.I)
- harbor-ithaka.com
- hbr-itk.com
- LinkedIn @HARBOR-ITHAKA

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $107,144,672 | 8 | March 31, 2021 |
| October 2022 | $127,929,085 | 7 | April 13, 2022 |
| October 2023 | $138,474,723 | 5 | May 1, 2023 |
| October 2024 | $151,492,838 | 5 | March 28, 2024 |
| October 2025 | $159,634,055 | 5 | March 24, 2025 |
| October 2026 | $171,150,927 | 7 | March 31, 2026 |

Regulatory assets under management: $107,144,672 in the October 2021 data and $171,150,927 in the October 2026 data, up 60%.
Total employees: 8 in October 2021 and 7 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- No longer lists the business name New Market Analytics WM.
- Employees performing advisory functions went from 2 to 3.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Harbor Ithaka (CRD 170580): Form ADV filing data as of October 2026.