William Blair Investment Management, LLC 

IL

  SEC # 1644956

        

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Relationships

        

First  20  of  75  Owner Relationships  (where the Issuers of the  William Blair Investment Management, LLC-owned  securities are...)

First		Latest Filing		Filing		Issuer / Subject
		2/12/24		SC 13G		AL	ADTRAN Holdings, Inc. [ formerly Adtran Inc. ]
2/11/21		2/12/24		SC 13G		VA	Alarm.com Holdings, Inc.
2/9/23		2/12/24		SC 13G			Audiocodes Ltd.
12/8/20		2/12/24		SC 13G		VA	Brink's Co.
2/13/18		2/12/24		SC 13G		VA	BWX Technologies, Inc.
		2/12/24		SC 13G		VT	Casella Waste Systems Inc.
		2/12/24		SC 13G		ID	Clearwater Analytics Holdings, Inc.
2/10/20		2/12/24		SC 13G		AL	Encompass Health Corp.
2/10/22		2/12/24		SC 13G		KS	Euronet Worldwide, Inc.
		2/12/24		SC 13G		NJ	Freshpet, Inc.
		2/12/24		SC 13G		OH	Lancaster Colony Corp.
2/10/22		2/12/24		SC 13G		AZ	Leslie's, Inc.
2/10/20		2/12/24		SC 13G			Luxfer Holdings plc
2/11/21		2/12/24		SC 13G		MA	Mercury Systems Inc.
2/11/21		2/12/24		SC 13G		UT	Merit Medical Systems Inc.
2/10/22		2/12/24		SC 13G		GA	National Vision Holdings, Inc.
2/10/22		2/12/24		SC 13G		TX	Orion S.A. [ formerly Orion Engineered Carbons S.A. ]
2/9/23		2/12/24		SC 13G		CA	PagerDuty, Inc.
2/10/22		2/12/24		SC 13G		CA	Revolve Group, Inc. [ formerly Revolve Group, LLC ]
2/10/22		2/12/24		SC 13G		NY	Standard Motor Products, Inc.
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and there are...  Recent Holdings Reports for this and 1 Related Money Managers

History:  Assets Under Management

As Of			Quarter (Ended)		Holdings Form 13F				Assets (Millions)		Reporting Manager and Related Manager Manager with whom Investment Discretion is Shared
2/14/24			12/31/23				1,853		$16,509,935		IL	Cresset Asset Management, LLC
							93		$4,163,238		IL	William Blair Investment Management, LLC
											and 21 Other Managers
2/9/24			12/31/23				406		$34,363,339		IL	William Blair Investment Management, LLC
11/9/23			9/30/23				398		$12,535,161		IL	William Blair Investment Management, LLC
8/10/23			6/30/23				395		$31,185		IL	William Blair Investment Management, LLC
5/12/23			3/31/23				393		$28,699		IL	William Blair Investment Management, LLC
2/9/23			12/31/22				401		$26,142		IL	William Blair Investment Management, LLC
11/9/22			9/30/22				387		$25,301		IL	William Blair Investment Management, LLC
8/10/22			6/30/22				403		$26,984		IL	William Blair Investment Management, LLC
5/11/22			3/31/22				441		$33,471		IL	William Blair Investment Management, LLC

        

No  Issuer Relationships  (where the Owners of the  William Blair Investment Management, LLC  securities are...)

        

No  Insider & Control Relationships  (Directors & Officers, Owners, Parent / Subs., et al.)

        

No  Joint-Filer Relationships  (Co-Filer Registrants:  Partners, Affiliates, et al.)

        

No  Group-Member Relationships  (Co-Filer Non-Registrants:  Partners, Affiliates, et al.)

        

Filing Agent Relationships  (SEC Filing Agents, Attorneys, Printers, et al. — Affiliates:  Directors & Officers, et al.)

3  Filing Agents and/or Registrants have submitted Filings for  William Blair Investment Management, LLC:

Latest Filing				Filing Agentª, Registrant or SEC — SEC #			Filings
		Type
2/12/24		SC 13G/A		TX	Toppan Merrill/FA — 1104659		138
2/9/24		13F-HR			No Filing Agent:  Self-filed — 1644956		26
3/4/19		SC 13G/A		NY	Toppan Merrill/FA — 1144204		105
Total:							269
__________  ª  Proprietary to SEC Info℠:  The SEC does not publish the names of SEC Filing Agents.