WILLIAM BLAIR & COMPANY L.L.C.

WILLIAM BLAIR & COMPANY L.L.C. of CHICAGO, IL is an SEC-registered investment adviser (CRD 1252). Regulatory assets under management: $64.3B. This firm reports disciplinary history on Form ADV.

Registration

Business model

Compensation: % of AUM, Fixed.

Clients served: Individuals, High net worth, Pooled vehicles, Charities, Investment cos, Other.

Officers, owners & control persons (56)

Showing 25 of 56 people.

NameRoleLocation
CISSIE CITARDIEXECUTIVE COMMITTEE, GENERAL COUNSELCHICAGO, IL
Brent Walker GledhillPRESIDENT, CEO
Ryan Jacob DevoreEXECUTIVE COMMITTEE
Willson B RasavongxayCHIEF COMPLIANCE OFFICER
Matthew Montgomery ZimmerEXECUTIVE COMMITTEE
Beth A SatterfieldEXECUTIVE COMMITTEE
Michael William TrimbergerCFO; EXECUTIVE COMMITTEE, CFO
Robert J DuwaEXECUTIVE COMMITTEE
Scott Thomas MclaughlinEXECUTIVE COMMITTEE
Michael Patrick QuinnEXECUTIVE COMMITTEE
Steven Robert ToleEXECUTIVE COMMITTEE
Stephanie Grieser BramingEXECUTIVE COMMITTEE
QUINN DANIEL PATRICKEXECUTIVE COMMITTEE
WAGNER KENNETH LEEBROKER-DEALER CHIEF COMPLIANCE OFFICER; CHIEF COMPLIANCE OFFICER
SIMON PAUL JOSEPHGENERAL COUNSEL; GENERAL COUNSEL, EXECUTIVE COMMITTEE
COOLIDGE EDGAR DAVID IIICEO; VICE CHAIRMAN; VICE CHAIRMAN, CEO
KIPHART RICHARD PAULEXECUTIVE COMMITTEE
LACHER ALBERT JOSEPHEXECUTIVE COMMITTEE
MCKINNEY JAMES DENNISEXECUTIVE COMMITTEE
GOTTFRED RICHARD DONALDEXECUTIVE COMMITTEE - SROP; SROP
ETTELSON JOHN ROGERCFO; CHAIRMAN; PRESIDENT, CEO (+1 more)
JANNOTTA EDGAR DALZELLCHAIRMAN; CHAIRMAN EMERITUS
SEITZMUSOLINO MICHELLE RENAEEXECUTIVE COMMITTEE
NEWMAN ROBERT DOUGLASEXECUTIVE COMMITTEE
MCMULLAN CARLETTE CATHERINEEXECUTIVE COMMITTEE

Disclosures (72)

Showing 10 of 18 distinct disclosure events.

InitiatedTypeAllegationsStatusAmount
2023-09-29regulatoryON SEPTEMBER 29, 2023, WILLIAM BLAIR & COMPANY, L.L.C. AND WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (COLLECTIVELY, WILLIAM BLAIR) ENTERED INTO A SETTLEMENT WITH THE U.S. SECURITIES & EXCHANGE COMMISSION (SEC) IN CONNECTION WITH THE AGENCY'S INDUSTRY-WIDE INVESTIGATION INTO THE PRESERVATION OF ELECTR…Final$10.0M
2019-07-02regulatoryWITHOUT ADMITTING OR DENYING THE FINDINGS, THE FIRM CONSENTED TO THE SANCTIONS AND TO THE ENTRY OF FINDINGS THAT IT FAILED, IN 157 INSTANCES, TO MAINTAIN A CONTINUOUS TWO-SIDED TRADING INTEREST DURING REGULAR MARKET HOURS AT PRICES WITHIN CERTAIN PERCENTAGES AWAY FROM THE NBBO AND FAILED TO MAINTAIN…Final$25K
2017-05-01regulatoryTHE SEC ALLEGED THAT FROM 2010 UNTIL 2014, AS A RESULT OF ERRONEOUS PAYMENTS, WILLIAM BLAIR NEGLIGENTLY USED MUTUAL FUND ASSETS TO PAY FOR (I) DISTRIBUTION AND MARKETING OF FUND SHARES OUTSIDE OF A WRITTEN, BOARD-APPROVED RULE 12B-1 PLAN AND (II) SUB-TRANSFER AGENT ("SUB-TA") SERVICES IN EXCESS OF B…Final$4.5M
2012-05-07regulatoryTHE SWISS FINANCIAL MARKET SUPERVISORY AUTHORITY ("FINMA") FOUND WILLIAM BLAIR TO HAVE NEGLIGENTLY FAILED TO COMPLY WITH SWISS SECURITIES REGULATIONS DUE TO WILLIAM BLAIR'S LATE FILING OF SHAREHOLDING REPORTS IN TWO INSTANCES.Final$9K
2010-02-12regulatoryTHE FIRM ALLEGEDLY ENTERED 11 ORDERS INTO THE NASDAQ MARKET CENTER THAT FAILED TO CORRECTLY INDICATE WHETHER THE ORDERS WERE A BUY, SHORT SALE OR LONG SALE.Final$5K
2010-02-12regulatoryTHE FINDINGS OF THREE EXAMINATIONS FROM 2006 (2006006387), 2007 (20070089900), AND 2008 (20080133281) WERE COMBINED AND THE ALLEGATIONS WERE THAT THE FIRM FAILED TO: DISPLAY IMMEDIATELY 27 CUSTOMER LIMIT ORDERS IN NASDAQ SECURITIES AND TRANSMITTED TO OATS 60 REPORTS THAT CONTAINED INACCURATE, INCOMP…Final$38K
2005-11-06regulatoryDURING THE THIRD QUARTER OF 2005 WILLIAM BLAIR & COMPANY ("THE FIRM") ALLEGEDLY VIOLATED SEC RULE 11AC1-4 BY FAILING TO IMMEDIATELY DISPLAY TWENTY-TWO (22)CUSTOMER LIMIT ORDERS IN NASDAQ SECURITIES, IN ITS PUBLIC QUOTATION. DURING THE SAME TIME PERIOD, THE FIRM ALLEGEDLY VIOLATED NASD MARKETPLACE RU…Final$20K
2005-02-23regulatoryDURING THE FIRST AND FOURTH QUARTERS OF 2004, WILLIAM BLAIR & COMPANY ("THE FIRM") ALLEGEDLY TRANSMITTED TO OATS REPORTS THAT CONTAINED INACCURATE, INCOMPLETE OR IMPROPERLY FORMATTED DATA AND FAILED TO SUBMIT REQUIRED INFORMATION TO OATS REGARDING ONE ORDER. ON 18 OCCASIONS DURING THE FOURTH QUARTER…Final$25K
2003-05-29regulatoryBETWEEN APPROXIMATELY JULY 1999 AND SEPTEMBER 2000, WILLIAM BLAIR & COMPANY,L.L.C. FAILED TO ESTABLISH WRITTEN SUPERVISORY PROCEDURES REASONABLY DESIGNED TO ACHIEVE COMPLIANCE WITH THE NASD'S FREE-RIDING AND WITHHOLDING INTERPRETATION IN THAT ITS EXISTING WRITTEN PROCEDURES FAILED TO REQUIRE A PERIO…Final$3K
2003-02-24regulatoryFROM OCTOBER 2, 2001 TO DECEMBER 31, 2001, WILLIAM BLAIR & COMPANY, L.L.C., A MARKET MAKER, WAS A PARTY TO A LOCKED OR CROSSED MARKET CONDITION PRIOR TO THE MARKET OPENING DURING THE PERIOD BETWEEN 9:20 AND 9:29:59 A.M. EASTERN TIME AND RECEIVED, IN 105 INSTANCES, A TRADE-OR-MOVE MESSAGE THROUGH SEL…Final$15K

Branch offices (11)

CityStateEmployeesPhone
BALTIMOREMD12(410)612-3750
CONSHOHOCKENPA122157801020
NEW YORKNY10212-237-2700
BOSTONMA7617-235-7500
SAN FRANCISCOCA6415-986-5596
ATLANTAGA6855-821-9144
DENVERCO617208440100
POWELLOH33805001990
LOS ANGELESCA34246007130
STAMFORDCT3+10237185140
FORT MYERSFL32395184675

Fund service providers (1)

More on this firm