BLAIR WILLIAM & CO/IL

PrivateCIK: 902367

Location

CHICAGO, IL

1922

Positions

$34.90B

Total AUM (reported)

252.40M

Total Shares

Allocation by class

COM$21.93B62.8%

CL A$2.17B6.2%

CAP STK CL C$870.84M2.5%

COM CL A$826.39M2.4%

CAP STK CL A$700.53M2.0%

COM NEW$558.59M1.6%

TR UNIT$549.73M1.6%

Portfolio Concentration

Top 3$4.06B11.6%

4–10$4.88B14.0%

11–25$5.28B15.1%

Rest$20.67B59.2%

Top 3 weight

11.6%

Top 10 weight

25.6%

Voting Authority Distribution

Total shares with voting rights: 252.40M

Sole

Full voting authority

198.07M

% of voting shares78.5%

Shared

Joint voting authority

0.00

% of voting shares0.0%

None

No voting authority

54.33M

% of voting shares21.5%

Investment Discretion (by position count)

Sole1922

Shared0

Other0

Dominant voting typeSole · 78.5% of voting shares

Institutional Holdings1922

Rows:

APPLE INC

SOLE

COM

Shares5.93M

TypeSH

Market value$1.51B

4.31%

Sole

4.50M

Shared

0.00

None

1.43M

MICROSOFT CORP

SOLE

COM

Shares3.50M

TypeSH

Market value$1.29B

3.71%

Sole

2.73M

Shared

0.00

None

768.75K

AMAZON COM INC

SOLE

COM

Shares6.06M

TypeSH

Market value$1.26B

3.62%

Sole

4.62M

Shared

0.00

None

1.44M

NVIDIA CORPORATION

SOLE

COM

Shares5.43M

TypeSH

Market value$946.62M

2.71%

Sole

4.37M

Shared

0.00

None

1.05M

ALPHABET INC

SOLE

CAP STK CL C

Shares3.04M

TypeSH

Market value$870.84M

2.50%

Sole

2.54M

Shared

0.00

None

492.90K

ALPHABET INC

SOLE

CAP STK CL A

Shares2.44M

TypeSH

Market value$700.53M

2.01%

Sole

1.89M

Shared

0.00

None

545.11K

JPMORGAN CHASE & CO

SOLE

COM

Shares2.31M

TypeSH

Market value$678.70M

1.94%

Sole

1.54M

Shared

0.00

None

765.45K

GE VERNOVA INC

SOLE

COM

Shares664.60K

TypeSH

Market value$580.13M

1.66%

Sole

522.35K

Shared

0.00

None

142.25K

VISA INC

SOLE

COM CL A

Shares1.84M

TypeSH

Market value$557.51M

1.60%

Sole

1.55M

Shared

0.00

None

298.10K

STATE STR SPDR S&P 500 ETF T

SOLE

TR UNIT

Shares845.29K

TypeSH

Market value$549.73M

1.58%

Sole

706.61K

Shared

0.00

None

138.68K

IDEXX LABS INC

SOLE

COM

Shares946.34K

TypeSH

Market value$531.74M

1.52%

Sole

788.92K

Shared

0.00

None

157.42K

COSTCO WHOLESALE CORPORATION

SOLE

COM

Shares521.28K

TypeSH

Market value$519.42M

1.49%

Sole

406.46K

Shared

0.00

None

114.82K

MASTERCARD INCORPORATED

SOLE

CL A

Shares923.40K

TypeSH

Market value$461.39M

1.32%

Sole

735.04K

Shared

0.00

None

188.37K

META PLATFORMS INC

SOLE

CL A

Shares721.72K

TypeSH

Market value$412.92M

1.18%

Sole

602.30K

Shared

0.00

None

119.42K

FASTENAL CO

SOLE

COM

Shares7.37M

TypeSH

Market value$342.14M

0.98%

Sole

4.58M

Shared

0.00

None

2.79M

INVESCO EXCHANGE TRADED FD T

SOLE

S&P500 EQL WGT

Shares1.68M

TypeSH

Market value$322.54M

0.92%

Sole

1.48M

Shared

0.00

None

196.69K

AMPHENOL CORP

SOLE

CL A

Shares2.52M

TypeSH

Market value$318.44M

0.91%

Sole

2.17M

Shared

0.00

None

352.91K

ISHARES TR

SOLE

CORE S&P500 ETF

Shares485.84K

TypeSH

Market value$317.35M

0.91%

Sole

412.31K

Shared

0.00

None

73.53K

VANGUARD INTL EQUITY INDEX F

SOLE

ALLWRLD EX US

Shares4.17M

TypeSH

Market value$313.06M

0.90%

Sole

3.72M

Shared

0.00

None

444.19K

ELI LILLY & CO

SOLE

COM

Shares324.02K

TypeSH

Market value$298.02M

0.85%

Sole

229.70K

Shared

0.00

None

94.32K

WALMART INC

SOLE

COM

Shares2.37M

TypeSH

Market value$295.08M

0.85%

Sole

1.37M

Shared

0.00

None

1.01M

BWX TECHNOLOGIES INC

SOLE

COM

Shares1.44M

TypeSH

Market value$294.08M

0.84%

Sole

1.20M

Shared

0.00

None

243.05K

ABBVIE INC

SOLE

COM

Shares1.33M

TypeSH

Market value$290.16M

0.83%

Sole

1.08M

Shared

0.00

None

252.66K

BROADCOM INC

SOLE

COM

Shares918.33K

TypeSH

Market value$284.23M

0.81%

Sole

807.17K

Shared

0.00

None

111.16K

STRYKER CORPORATION

SOLE

COM

Shares847.70K

TypeSH

Market value$278.55M

0.80%

Sole

582.64K

Shared

0.00

None

265.06K

Issuer	Class	Shares	Type	Value / Portfolio %	Voting — Sole	None
APPLE INCSOLE	COM	5.93M	SH	$1.51B 4.31%	4.50M	1.43M
MICROSOFT CORPSOLE	COM	3.50M	SH	$1.29B 3.71%	2.73M	768.75K
AMAZON COM INCSOLE	COM	6.06M	SH	$1.26B 3.62%	4.62M	1.44M
NVIDIA CORPORATIONSOLE	COM	5.43M	SH	$946.62M 2.71%	4.37M	1.05M
ALPHABET INCSOLE	CAP STK CL C	3.04M	SH	$870.84M 2.50%	2.54M	492.90K
ALPHABET INCSOLE	CAP STK CL A	2.44M	SH	$700.53M 2.01%	1.89M	545.11K
JPMORGAN CHASE & COSOLE	COM	2.31M	SH	$678.70M 1.94%	1.54M	765.45K
GE VERNOVA INCSOLE	COM	664.60K	SH	$580.13M 1.66%	522.35K	142.25K
VISA INCSOLE	COM CL A	1.84M	SH	$557.51M 1.60%	1.55M	298.10K
STATE STR SPDR S&P 500 ETF TSOLE	TR UNIT	845.29K	SH	$549.73M 1.58%	706.61K	138.68K
IDEXX LABS INCSOLE	COM	946.34K	SH	$531.74M 1.52%	788.92K	157.42K
COSTCO WHOLESALE CORPORATIONSOLE	COM	521.28K	SH	$519.42M 1.49%	406.46K	114.82K
MASTERCARD INCORPORATEDSOLE	CL A	923.40K	SH	$461.39M 1.32%	735.04K	188.37K
META PLATFORMS INCSOLE	CL A	721.72K	SH	$412.92M 1.18%	602.30K	119.42K
FASTENAL COSOLE	COM	7.37M	SH	$342.14M 0.98%	4.58M	2.79M
INVESCO EXCHANGE TRADED FD TSOLE	S&P500 EQL WGT	1.68M	SH	$322.54M 0.92%	1.48M	196.69K
AMPHENOL CORPSOLE	CL A	2.52M	SH	$318.44M 0.91%	2.17M	352.91K
ISHARES TRSOLE	CORE S&P500 ETF	485.84K	SH	$317.35M 0.91%	412.31K	73.53K
VANGUARD INTL EQUITY INDEX FSOLE	ALLWRLD EX US	4.17M	SH	$313.06M 0.90%	3.72M	444.19K
ELI LILLY & COSOLE	COM	324.02K	SH	$298.02M 0.85%	229.70K	94.32K
WALMART INCSOLE	COM	2.37M	SH	$295.08M 0.85%	1.37M	1.01M
BWX TECHNOLOGIES INCSOLE	COM	1.44M	SH	$294.08M 0.84%	1.20M	243.05K
ABBVIE INCSOLE	COM	1.33M	SH	$290.16M 0.83%	1.08M	252.66K
BROADCOM INCSOLE	COM	918.33K	SH	$284.23M 0.81%	807.17K	111.16K
STRYKER CORPORATIONSOLE	COM	847.70K	SH	$278.55M 0.80%	582.64K	265.06K

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