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Steven Jefferis

46 Years of Experience
Chicago, IL
2 DisclosuresBroker

Steven Jefferis is a registered investment advisor at William Blair & Company L.L.C., based in Chicago, IL, with 46 years of industry experience. Steven is also registered as a broker, so some compensation may come from commissions on products sold. Their practice areas include Charitable Giving, Estate Planning, Investment Management, Retirement Planning. Their firm serves 38,171 clients with $64B in assets under management.

Compensation
Fee-Only (% of Portfolio)Fixed/Hourly
Firm Size
329 advisors
IM Fee
Planning only
Assets Under Management
$64.3B

Fee Structure

Investment management only (planning not offered)

Detailed fee information is not available for this advisor. View their full brochure on SEC.gov for fee details.

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Location

The William Blair Building, 150 North Riverside, Chicago, IL, 60606-1594

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History

Regulatory History (2)
What are disclosures? Advisors must report customer complaints, regulatory actions, and certain legal or financial events to the SEC. Not all disclosures are serious—many are settled disputes or minor violations. Learn how to evaluate them.
Customer Dispute
July 2009
Denied
Customer Dispute
July 1988
Settled
Other Business Activities

Steven is a part owner of a condo, owns a yacht and buys stocks/boats, is involved in standard bred horse racing, and is the CEO/Managing Partner of Maplewing Farm LLC AirBNB. These activities take up a few hours per week.

Employment History
Current Registrations
William Blair & Company L.L.C.
February 2026 - Present · 8 mos
William BlairBroker
January 2026 - Present · 9 mos
William Blair
January 2026 - Present · 9 mos
Previous Registrations
Stifel, Nicolaus & Company, Incorporated
January 2000 - January 2026 · 26 yrs
Stifel, Nicolaus & Company, IncorporatedBroker
September 1998 - January 2026 · 27 yrs 4 mos
Fifth Third/the Ohio CompanyBroker
October 1991 - August 1998 · 6 yrs 10 mos
Kemper Securities Group, INC.Broker
September 1990 - October 1991 · 1 yr 1 mo
Prescott, Ball & Turben, INC.Broker
February 1989 - September 1990 · 1 yr 7 mos
Stifel, Nicolaus & Company, IncorporatedBroker
November 1981 - March 1989 · 7 yrs 4 mos
Vercoe & Company, INC.Broker
June 1980 - October 1983 · 3 yrs 4 mos
State Registrations29 states
ALARAZCACOCTFLGAILINKSKYMAMDMIMNMONCNJNVNYOHPASCTNTXVAVTWV
AdvisorBrokerBoth

You can work with an advisor not registered in your state. Most advisors can legally serve a small number of clients across state lines without registering.

Exams
No exam information available for this advisor.
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