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401k Sponsoring company profile

WILLIAM BLAIR & COMPANY, LLC has sponsored the creation of one or more 401k plans.

Company Name:WILLIAM BLAIR & COMPANY, LLC
Employer identification number (EIN):362214610
NAIC Classification:523110
NAIC Description:Investment Banking and Securities Dealing

The following addresses have been detected on the 401k submissions:

USA Mailing Address
222 WEST ADAMS STREET
CHICAGO
IL
60606
Date first seen: 2007-01-01
Date last seen: 2023-12-31
USA Mailing Address
THE WILLIAM BLAIR BUILDING
150 N. RIVERSIDE PLAZA
CHICAGO
IL
606061594
Date first seen: 2017-10-09
Date last seen: 2018-09-27

WILLIAM BLAIR & COMPANY, LLC 401k Plans

Plan id# Plan Name Plan Start Date Plan Effective Date
503WILLIAM BLAIR & COMPANY DEATH AND DISMEMBERMENT PROGRAM2015-01-01 1973-01-01
001WILLIAM BLAIR & COMPANY DEFERRED PROFIT SHARING PLAN2015-01-01 1953-12-14
502WILLIAM BLAIR & COMPANY GROUP LONG-TERM DISABILITY INSURANCE PROGRAM2015-01-01 1980-10-01
501WILLIAM BLAIR & COMPANY HEALTH BENEFITS PLAN2009-01-01 1973-01-01
005WBC HOLDINGS, L.P. PARTNERS' RETIREMENT PLAN2009-01-01 2005-01-01

401k Contributions

Contributions made to the plan for the plan year by employer(s) and employees. Schedule SB Part 4 Question 18. This is signed by an actuary:

DateType of contributionContribution Number of participants/employees Average contribution per participant
2010-04-12Employer Contributions $ 217,194 941 $ 231
2010-04-12Employee Contributions $ 217,194 941 $ 231
2010-03-03Employer Contributions $ 2,467,044 941 $ 2,622
2010-03-03Employee Contributions $ 2,467,044 941 $ 2,622
2009-12-30Employer Contributions $ 4,895,364 830 $ 5,898
2009-12-30Employee Contributions $ 4,895,364 830 $ 5,898
2009-12-11Employer Contributions $ 98,543 830 $ 119
2009-12-11Employee Contributions $ 98,543 830 $ 119

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