# Seamans Capital Management, LLC

> Seamans Capital Management, LLC is an SEC-registered investment advisory firm in Waltham, MA, registered since 2002, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated March 31, 2026.

- CRD: 118404
- Filed as: SEAMANS CAPITAL MANAGEMENT, LLC
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Waltham, MA
- Filing period: October 2026
- Form ADV filing dated: March 31, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/118404
- AdvisorCensus page: https://advisorcensus.com/firm/seamans-capital-management-llc-waltham-ma-118404

## Quick answers

**How is Seamans Capital Management, LLC compensated?**
On its Form ADV (Item 5.E, October 2026), Seamans Capital Management, LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees.

**Where is Seamans Capital Management, LLC located?**
Seamans Capital Management, LLC's principal office is in Waltham, MA, according to its Form ADV.

**Is Seamans Capital Management, LLC registered with the SEC or a state?**
Seamans Capital Management, LLC is an SEC-registered investment advisory firm, registered since 2002. Status as filed: Approved. CRD 118404.

**How much does Seamans Capital Management, LLC manage?**
Seamans Capital Management, LLC reports $170,677,730 in regulatory assets under management in its Form ADV filing dated March 31, 2026 (100% discretionary).

**How have Seamans Capital Management, LLC's assets and staff changed since 2021?**
In the Form ADV data for Seamans Capital Management, LLC: Regulatory assets under management: $92,656,061 in the October 2021 data and $170,677,730 in the October 2026 data, up 84%. Total employees: 8 in October 2021 and 9 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Seamans Capital Management, LLC serve?**
By number of clients on Form ADV Item 5.D: high net worth individuals (19); individuals (other than high net worth individuals) (15); pooled investment vehicles (other than investment companies and business development companies) (7).

**Which custodians does Seamans Capital Management, LLC use?**
Seamans Capital Management, LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Deutsche Bank as a custodian holding 10% or more of its separately managed account assets.

**Does Seamans Capital Management, LLC 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/118404

**What changed in Seamans Capital Management, LLC's recent Form ADV filings?**
In the April 2026 filing data: Employees performing advisory functions went from 3 to 2. Regulatory assets under management went from $124,822,314 to $170,677,730 (+37%). Registered or notice-filed in OR.

## From the Form ADV filing

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

### Custodians (Schedule D, Section 5.K(3))
- Deutsche Bank

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: $170,677,730
- Discretionary: $170,677,730
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Individuals (other than high net worth individuals) | 15 | $2,902,542 |
| High net worth individuals | 19 | $58,263,940 |
| Pooled investment vehicles (other than investment companies and business development companies) | 7 | $101,734,098 |
| Pension and profit sharing plans (but not the plan participants or government pension plans) | 1 | $313,168 |
| Charitable organizations | 2 | $7,463,982 |

### Advisory services (Item 5.G)
- Portfolio management for individuals and/or small businesses
- Portfolio management for pooled investment vehicles (other than investment companies)
- Portfolio management for businesses (other than small businesses) or institutional clients

### Firm details
- Registered since: 2002 (24 years)
- Employees: 9 total, 2 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CA, FL, IL, MA, NH, NY, OR
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

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

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $92,656,061 | 8 | March 31, 2021 |
| October 2022 | $88,397,659 | 9 | March 31, 2022 |
| October 2023 | $91,547,317 | 8 | March 31, 2023 |
| October 2024 | $113,895,911 | 8 | March 18, 2024 |
| October 2025 | $124,822,314 | 8 | March 27, 2025 |
| October 2026 | $170,677,730 | 9 | March 31, 2026 |

Regulatory assets under management: $92,656,061 in the October 2021 data and $170,677,730 in the October 2026 data, up 84%.
Total employees: 8 in October 2021 and 9 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- Employees performing advisory functions went from 3 to 2.
- Regulatory assets under management went from $124,822,314 to $170,677,730 (+37%).
- Registered or notice-filed in OR.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Seamans Capital Management, LLC (CRD 118404): Form ADV filing data as of October 2026.