# Deerfield Management Company

> Deerfield Management Company is an SEC-registered investment advisory firm in New York, NY, registered since 2012, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated July 31, 2026.

- CRD: 157876
- Filed as: DEERFIELD MANAGEMENT COMPANY
- Legal name: Deerfield Management Company, L.P.
- Also doing business as: DEERFIELD DISCOVERY AND DEVELOPMENT (3DC), DEERFIELD INTELLIGENCE
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: New York, NY
- Filing period: October 2026
- Form ADV filing dated: July 31, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/157876
- AdvisorCensus page: https://advisorcensus.com/firm/deerfield-management-company-new-york-ny-157876

## Quick answers

**How is Deerfield Management Company compensated?**
On its Form ADV (Item 5.E, October 2026), Deerfield Management Company 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 Deerfield Management Company located?**
Deerfield Management Company's principal office is in New York, NY, according to its Form ADV; the August 2026 filing also lists 1 other office (Schedule D, Section 1.F).

**Is Deerfield Management Company registered with the SEC or a state?**
Deerfield Management Company is an SEC-registered investment advisory firm, registered since 2012. Status as filed: Approved. CRD 157876.

**How much does Deerfield Management Company manage?**
Deerfield Management Company reports $19,084,042,235 in regulatory assets under management in its Form ADV filing dated July 31, 2026 (100% discretionary).

**How have Deerfield Management Company's assets and staff changed since 2021?**
In the Form ADV data for Deerfield Management Company: Regulatory assets under management: $16,921,243,804 in the October 2021 data and $19,084,042,235 in the October 2026 data, up 13%. Total employees: 151 in October 2021 and 189 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Deerfield Management Company serve?**
By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (12).

**Does Deerfield Management Company report any disciplinary disclosures?**
Reports 3 disclosure items on Form ADV Item 11: yes answers to 11.C(2) (SEC or CFTC finding of a violation), 11.C(4) (SEC or CFTC order), and 11.C(5) (SEC or CFTC civil money penalty or cease-and-desist order). Each question covers the firm and its advisory affiliates, and one event can produce several yes answers. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/157876

**What changed in Deerfield Management Company's recent Form ADV filings?**
In the April 2026 filing data: No longer lists the business name Deerfield Institute. Added the business name Deerfield Intelligence. Employees performing advisory functions went from 90 to 89. Regulatory assets under management went from $16,051,603,884 to $19,084,042,235 (+19%). Updated its list of owners and control persons (Schedule A).

## From the Form ADV filing

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

### Regulatory assets under management (Item 5.F)
- Total: $19,084,042,235
- Discretionary: $19,084,042,235
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Pooled investment vehicles (other than investment companies and business development companies) | 12 | $19,084,042,235 |

### Advisory services (Item 5.G)
- Portfolio management for pooled investment vehicles (other than investment companies)

### Firm details
- Registered since: 2012 (14 years)
- Employees: 189 total, 89 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: NY
- Disclosures (Item 11): Reports 3 disclosure items on Form ADV Item 11.

### Item 11 questions answered yes
- 11.C(2): Has the SEC or the CFTC ever found that the firm or an advisory affiliate was involved in a violation of SEC or CFTC regulations or statutes?
- 11.C(4): Has the SEC or the CFTC ever entered an order against the firm or an advisory affiliate in connection with investment-related activity?
- 11.C(5): Has the SEC or the CFTC ever imposed a civil money penalty on the firm or an advisory affiliate, or ordered the firm or an advisory affiliate to cease and desist from an activity?

Each question covers the firm and its advisory affiliates: its current employees other than clerical staff, its officers, partners, and directors, and anyone who controls the firm or is controlled by it. One event can produce yes answers to several questions. SEC-registered advisers and exempt reporting advisers may leave out events more than ten years old, and may answer 11.A(2) and 11.B(2) for pending charges only. The detail of each yes answer is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/157876

### Other offices (Schedule D, Section 1.F), as of the August 2026 filing
- Parsippany, NJ

### Websites listed on Form ADV (Item 1.I)
- [deerfield.com](https://deerfield.com)
- LinkedIn @DEERFIELD-MANAGEMENT

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $16,921,243,804 | 151 | March 31, 2021 |
| October 2022 | $16,229,982,187 | 148 | March 30, 2022 |
| October 2023 | $15,060,203,700 | 175 | May 31, 2023 |
| October 2024 | $16,117,395,447 | 178 | March 28, 2024 |
| October 2025 | $16,051,603,884 | 183 | July 23, 2025 |
| October 2026 | $19,084,042,235 | 189 | July 31, 2026 |

Regulatory assets under management: $16,921,243,804 in the October 2021 data and $19,084,042,235 in the October 2026 data, up 13%.
Total employees: 151 in October 2021 and 189 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- No longer lists the business name Deerfield Institute.
- Added the business name Deerfield Intelligence.
- Employees performing advisory functions went from 90 to 89.
- Regulatory assets under management went from $16,051,603,884 to $19,084,042,235 (+19%).
- Updated its list of owners and control persons (Schedule A).

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Deerfield Management Company (CRD 157876): Form ADV filing data as of October 2026.