Deerfield Management Company

• A percentage of assets under your management
• Performance-based fees

Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ

See the firm's brochure (dated July 31, 2026) for its fees and any account minimum, on the SEC's IAPD site.

$19,084,042,235 as of October 2026, filing dated July 31, 2026.

A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means

A firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.

• Portfolio management for pooled investment vehicles (other than investment companies)

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.

Registered since

2012 (14 years)

Employees

Total: 189. Performing investment advisory functions: 89.

Wrap fee program participation

No.

Other offices (Schedule D, Section 1.F)

1 other office, as of the August 2026 filing

Parsippany, NJ

States registered or notice-filed

1 state or jurisdiction

NY

SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration

3 Reports 3 disclosure items on Form ADV Item 11. View on IAPD.

Questions answered yes on this filing

Regulatory matters Items 11.C to 11.G

• 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. What happened, and who was involved, is on the Disclosure Reporting Pages of the IAPD record. Reading a firm's disclosures

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.

As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.

1. 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).

Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.