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JL

John Merrill Lafferty Jr.

CFA
WILLIAM BLAIR
CHICAGO, IL
·CRD# 5205509·20 years experience

Professional Summary

John Merrill Lafferty JR., CFA is a registered financial advisor currently at WILLIAM BLAIR located in Chicago, Illinois. John is registered as an IAR (Investment Advisor Representative) and started their career in finance in 2006. John has worked at 3 firms and has passed the Series 65 exam.

At a Glance

Always Fiduciary

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Other Aliases

There are no additional aliases reported.

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Videos & Posts

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Contact Information

This advisor has not claimed their profile yet, so there is no contact information to display at this time.

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Disclosures are events reported to regulators, such as customer disputes, regulatory actions, employment separations, or financial events. Some are resolved, denied, or contested — a disclosure is not a verdict. We recommend asking an advisor directly about any disclosure on their record.

Disclosures on record.

Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities. Check for any disclosures as part of your thorough research when choosing an advisor.

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Credentials

CFA
Chartered Financial Analyst

Years of Experience

20 years in the financial services industry

Current & Past Employments

WILLIAM BLAIR·CRD# 1252
RIA
BD
1. The William Blair Building 150 North Riverside, Chicago, IL 606062. Winnetka, IL
December 12, 2025 - Present
CORIENT·CRD# 319448
RIA
Chicago, IL
March 31, 2023 - January 12, 2026
SEGALL BRYANT & HAMILL·CRD# 106505
RIA
Chicago, IL
November 22, 2006 - December 14, 2023

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Current Firm

WILLIAM BLAIR
WILLIAM BLAIR

WILLIAM BLAIR | WILLIAM BLAIR & COMPANY L.L.C. | WILLIAM BLAIR & COMPANY

CRD#: 1252 / SEC#: 801-688, 8-2698
RIA
Registered Investment Advisory firm - SEC (12/24/1947 Approved)
BD
Broker-Dealer Firm Regulated by FINRA (Chicago district office)

Contact Information

Main Address

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

Mailing Address

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

Phone Number

(312) 236-1600

Established

Delaware since 10/30/1995

Firm Type

Limited Liability Company

Fiscal Year End

December

Firm Size

Large

# of Employees

492

SEC notice filing (53 States and Territories)

Registered to provide investment advisory services in 53 US states and territories.

FINRA licenses (53 States and Territories)

Registered to provide investment advisory services in 53 US states and territories.

Documents

Customer Relationship Summary (CRS / SEC)Customer Relationship Summary (CRS / FINRA)Latest Form ADV

Part 2 Brochures

WILLIAM BLAIR FORM ADV PART 2A - APPENDIX 1 WRAP BROCHURE (3/31/2026)

Direct owners and executive officers

NamePositionCRD#
WBC HOLDINGS, L.P.HOLDING COMPANY—
CITARDI, CISSIEEXECUTIVE COMMITTEE, GENERAL COUNSEL6642613
DEVORE, RYAN JACOBEXECUTIVE COMMITTEE3049671
GLEDHILL, BRENT WALKERPRESIDENT, CEO2921069
KENDALL, ROBERT DANIELEXECUTIVE COMMITTEE2765873
MCLAUGHLIN, SCOTT THOMASEXECUTIVE COMMITTEE2481285
RASAVONGXAY, WILLSON BCHIEF COMPLIANCE OFFICER6593731
SATTERFIELD, BETH AEXECUTIVE COMMITTEE6011858
TOLE, STEVEN ROBERTEXECUTIVE COMMITTEE5885283
TRIMBERGER, MICHAEL WILLIAMEXECUTIVE COMMITTEE, CFO5329834
ZIMMER, MATTHEW MONTGOMERYEXECUTIVE COMMITTEE4157826

Regulatory Assets Under Management

Total Number of Accounts

39,781

AUM (Assets Under Management)

$64,284,844,374

Disclosures

Regulatory Event

29

Arbitration

2

Bond

1

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Other business activities

Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.

The advisor shows no other business activity.

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Primary Firm SEC Registration

This SEC-registered firm can serve clients nationwide. Some states may require the firm to submit a notice filing if the firm has more than 5 clients or a physical office there. You can view these state-level filings under the section titled "State Registrations and Notice Filings".
WILLIAM BLAIR
WILLIAM BLAIR

WILLIAM BLAIR | WILLIAM BLAIR & COMPANY L.L.C. | WILLIAM BLAIR & COMPANY

CRD#: 1252 / SEC#: 801-688, 8-2698
RIA
Registered Investment Advisory firm - SEC (12/24/1947 Approved)
BD
Broker-Dealer Firm Regulated by FINRA (Chicago district office)

State Registrations and Notice Filings

Listed states reflect where the advisor is authorized to serve clients under state regulations.
IAR
means the advisor is registered as an Investment Advisor Representative in this state and is authorized to provide investment advice to clients there.
IAR
Illinois
(12/12/2025)

Don't see your state listed? The advisor may still be able to work with you under the federal De Minimis Rule, which allows up to five investment advisory clients in a state without registration. Some states, like TX, LA, NE, and NH, may still require registration or notice filing. Contact the advisor or their firm to confirm their investment advisory availability in your state.

Exams

Financial professionals may take different exams throughout their careers based on the types of services they provide and roles they perform.

Series 65 — Uniform Investment Adviser Law Examination

Passed Nov 2006About the Series 65 exam

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CRS (Client Relationship Summary) - RIA

Click below to view John Merrill Lafferty JR.'s CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

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