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WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CRD 173961 · SEC 801-80640
150 NORTH RIVERSIDE PLAZA, CHICAGO, IL, 60606-1598, United States
Phone
312-236-1600
Fax
312-551-4646
Registration
Registered (APPROVED)
Source
SEC registered
Total AUM
$65.60B
Discretionary AUM
$65.60B
Team
388 total employees; 142 advisory reps; 18 broker-dealer reps
Clients
—
Fees
Percentage of AUM; Performance-based fees
Org form
Limited Liability Company
Filing date
2026-04-09
Disciplinary history
Yes
Services
Portfolio management (individuals)Portfolio management (investment companies)Portfolio management (pooled vehicles)Portfolio management (institutions)
Client types
| Type | Clients | AUM |
|---|---|---|
| High net worth individuals | 2 | $18.3M |
| Investment companies | 29 | $15.84B |
| Pooled investment vehicles | 51 | $22.15B |
| Pension/profit sharing plans | 73 | $11.85B |
| Charitable organizations | 68 | $2.34B |
| State/municipal entities | 54 | $11.93B |
| Other investment advisers | 1 | $320.7M |
| Insurance companies | 4 | $23.5M |
| Sovereign wealth funds | 4 | $721.5M |
| Corporations/business entities | 10 | $209.5M |
States served
VT, AL, AK, AZ, AR, CA, CO, DE, DC, GA, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MT, NE, NV, NJ, NM, NY, NC, ND, OH, OK, OR, PA, PR, RI, SC, TN, UT, VA, WV, WI, WY, VI, MO, WA, TX, NH, HI, CT, FL, SD
All web addresses on file
- https://www.instagram.com/williamblairim
- https://www.youtube.com/user/WilliamBlairInvMgmt
- https://www.linkedin.com/showcase/william-blair-investment-management/
- https://www.williamblair.com/
- https://www.facebook.com/WilliamBlairIM/
- https://twitter.com/williamblairim
- https://im.williamblair.com/
- https://open.spotify.com/show/7cd8ano4miwMxS7VTsuaAL
- https://podcasts.apple.com/us/podcast/the-active-share/id1473139558
- https://tunein.com/podcasts/Business--Economics-Podcasts/The-Active-Share-p1234306/
Official SEC filing: View on IAPD