# Diadema Partners LP

> Diadema Partners LP is an SEC-registered investment advisory firm in Morristown, NJ, registered since 2024, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated March 20, 2026.

- CRD: 331527
- Filed as: DIADEMA PARTNERS LP
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Morristown, NJ
- Filing period: October 2026
- Form ADV filing dated: March 20, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/331527
- AdvisorCensus page: https://advisorcensus.com/firm/diadema-partners-lp-morristown-nj-331527

## Quick answers

**How is Diadema Partners LP compensated?**
On its Form ADV (Item 5.E, October 2026), Diadema Partners LP reports these compensation arrangements: a percentage of assets under its management; performance-based fees. The amounts are in Item 5 of its Form ADV Part 2A brochure.

**Where is Diadema Partners LP located?**
Diadema Partners LP's principal office is in Morristown, NJ, according to its Form ADV.

**Is Diadema Partners LP registered with the SEC or a state?**
Diadema Partners LP is an SEC-registered investment advisory firm, registered since 2024. Status as filed: Approved. CRD 331527.

**How much does Diadema Partners LP manage?**
Diadema Partners LP reports $397,900,939 in regulatory assets under management in its Form ADV filing dated March 20, 2026 (100% discretionary).

**How have Diadema Partners LP's assets and staff changed since 2024?**
In the Form ADV data for Diadema Partners LP: Regulatory assets under management: $177,590,219 in the October 2025 data and $397,900,939 in the October 2026 data, up 124%. Total employees: 3 in October 2024 and 6 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Diadema Partners LP serve?**
By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (6).

**Which custodians does Diadema Partners LP use?**
Diadema Partners LP's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Morgan Stanley & Co. LLC as a custodian holding 10% or more of its separately managed account assets.

**Does Diadema Partners LP 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/331527

**What changed in Diadema Partners LP's recent Form ADV filings?**
In the April 2026 filing data: Employees performing advisory functions went from 3 to 4. Regulatory assets under management went from $177,590,219 to $397,900,939 (+124%).

## 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))
- Morgan Stanley & Co. 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: $397,900,939
- Discretionary: $397,900,939
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Pooled investment vehicles (other than investment companies and business development companies) | 6 | $363,757,058 |
| Corporations or other businesses not listed above | Fewer than 5 | $34,143,881 |

### Advisory services (Item 5.G)
- 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: 2024 (2 years)
- Employees: 6 total, 4 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: NJ
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Websites listed on Form ADV (Item 1.I)
- diademapartnerslp.com
- LinkedIn @diadema-partners-lp

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2024 | Not reported | 3 | June 21, 2024 |
| October 2025 | $177,590,219 | 5 | June 18, 2025 |
| October 2026 | $397,900,939 | 6 | March 20, 2026 |

Regulatory assets under management: $177,590,219 in the October 2025 data and $397,900,939 in the October 2026 data, up 124%.
Total employees: 3 in October 2024 and 6 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- Employees performing advisory functions went from 3 to 4.
- Regulatory assets under management went from $177,590,219 to $397,900,939 (+124%).

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Diadema Partners LP (CRD 331527): Form ADV filing data as of October 2026.