Jefferies Research Services LLC

• Subscription fees (for a newsletter or periodical)
• Fixed fees (other than subscription fees)
• Other

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 February 27, 2026) for its fees and any account minimum, on the SEC's IAPD site.

Not reported.

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

Not reported.

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.

• Other

Registration

SEC-registered investment adviser. Status as filed: Approved.

Registered since

2018 (8 years)

Employees

Total: 248. Performing investment advisory functions: 221.

Wrap fee program participation

No.

Other offices (Schedule D, Section 1.F)

7 other offices, as of the March 2026 filing

Boston, MAChicago, ILHouston, TXMiami, FLNashville, TNSan Francisco, CAStamford, CT

States registered or notice-filed

53 states or jurisdictions

AKALARAZCACOCTDCDEFLGAHIIAIDILINKSKYLAMAMDMEMIMNMOMSMTNCNDNENHNJNMNVNYOHOKORPAPRRISCSDTNTXUTVAVIVTWAWIWVWY

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

None Reports no disclosure items on Form ADV Item 11. View on IAPD.

Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures

Total employees: 202 in October 2021 and 248 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. March 2026
   • Added an office in Stamford, CT.

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