Filed: 5/8/2026ACC: 0001104659-26-057897
📋 What this filing means
BLAIR WILLIAM & CO/IL filed this quarterly 13F‑HR report disclosing 1922 equity positions with a total reported market value of $34.90B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
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
shares
% of voting shares78.5%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
54.33M
shares
% 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
SOLEShares5.93M
TypeSH
Market value$1.51B
4.31%
Sole
4.50M
Shared
0.00
None
1.43M
MICROSOFT CORP
SOLEShares3.50M
TypeSH
Market value$1.29B
3.71%
Sole
2.73M
Shared
0.00
None
768.75K
AMAZON COM INC
SOLEShares6.06M
TypeSH
Market value$1.26B
3.62%
Sole
4.62M
Shared
0.00
None
1.44M
NVIDIA CORPORATION
SOLEShares5.43M
TypeSH
Market value$946.62M
2.71%
Sole
4.37M
Shared
0.00
None
1.05M
ALPHABET INC
SOLEShares3.04M
TypeSH
Market value$870.84M
2.50%
Sole
2.54M
Shared
0.00
None
492.90K
ALPHABET INC
SOLEShares2.44M
TypeSH
Market value$700.53M
2.01%
Sole
1.89M
Shared
0.00
None
545.11K
JPMORGAN CHASE & CO
SOLEShares2.31M
TypeSH
Market value$678.70M
1.94%
Sole
1.54M
Shared
0.00
None
765.45K
GE VERNOVA INC
SOLEShares664.60K
TypeSH
Market value$580.13M
1.66%
Sole
522.35K
Shared
0.00
None
142.25K
VISA INC
SOLEShares1.84M
TypeSH
Market value$557.51M
1.60%
Sole
1.55M
Shared
0.00
None
298.10K
STATE STR SPDR S&P 500 ETF T
SOLEShares845.29K
TypeSH
Market value$549.73M
1.58%
Sole
706.61K
Shared
0.00
None
138.68K
IDEXX LABS INC
SOLEShares946.34K
TypeSH
Market value$531.74M
1.52%
Sole
788.92K
Shared
0.00
None
157.42K
COSTCO WHOLESALE CORPORATION
SOLEShares521.28K
TypeSH
Market value$519.42M
1.49%
Sole
406.46K
Shared
0.00
None
114.82K
MASTERCARD INCORPORATED
SOLEShares923.40K
TypeSH
Market value$461.39M
1.32%
Sole
735.04K
Shared
0.00
None
188.37K
META PLATFORMS INC
SOLEShares721.72K
TypeSH
Market value$412.92M
1.18%
Sole
602.30K
Shared
0.00
None
119.42K
FASTENAL CO
SOLEShares7.37M
TypeSH
Market value$342.14M
0.98%
Sole
4.58M
Shared
0.00
None
2.79M
INVESCO EXCHANGE TRADED FD T
SOLEShares1.68M
TypeSH
Market value$322.54M
0.92%
Sole
1.48M
Shared
0.00
None
196.69K
AMPHENOL CORP
SOLEShares2.52M
TypeSH
Market value$318.44M
0.91%
Sole
2.17M
Shared
0.00
None
352.91K
ISHARES TR
SOLEShares485.84K
TypeSH
Market value$317.35M
0.91%
Sole
412.31K
Shared
0.00
None
73.53K
VANGUARD INTL EQUITY INDEX F
SOLEShares4.17M
TypeSH
Market value$313.06M
0.90%
Sole
3.72M
Shared
0.00
None
444.19K
ELI LILLY & CO
SOLEShares324.02K
TypeSH
Market value$298.02M
0.85%
Sole
229.70K
Shared
0.00
None
94.32K
WALMART INC
SOLEShares2.37M
TypeSH
Market value$295.08M
0.85%
Sole
1.37M
Shared
0.00
None
1.01M
BWX TECHNOLOGIES INC
SOLEShares1.44M
TypeSH
Market value$294.08M
0.84%
Sole
1.20M
Shared
0.00
None
243.05K
ABBVIE INC
SOLEShares1.33M
TypeSH
Market value$290.16M
0.83%
Sole
1.08M
Shared
0.00
None
252.66K
BROADCOM INC
SOLEShares918.33K
TypeSH
Market value$284.23M
0.81%
Sole
807.17K
Shared
0.00
None
111.16K
STRYKER CORPORATION
SOLEShares847.70K
TypeSH
Market value$278.55M
0.80%
Sole
582.64K
Shared
0.00
None
265.06K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
APPLE INCSOLE | COM | 5.93M | SH | $1.51B 4.31% | 4.50M | 0.00 | 1.43M |
MICROSOFT CORPSOLE | COM | 3.50M | SH | $1.29B 3.71% | 2.73M | 0.00 | 768.75K |
AMAZON COM INCSOLE | COM | 6.06M | SH | $1.26B 3.62% | 4.62M | 0.00 | 1.44M |
NVIDIA CORPORATIONSOLE | COM | 5.43M | SH | $946.62M 2.71% | 4.37M | 0.00 | 1.05M |
ALPHABET INCSOLE | CAP STK CL C | 3.04M | SH | $870.84M 2.50% | 2.54M | 0.00 | 492.90K |
ALPHABET INCSOLE | CAP STK CL A | 2.44M | SH | $700.53M 2.01% | 1.89M | 0.00 | 545.11K |
JPMORGAN CHASE & COSOLE | COM | 2.31M | SH | $678.70M 1.94% | 1.54M | 0.00 | 765.45K |
GE VERNOVA INCSOLE | COM | 664.60K | SH | $580.13M 1.66% | 522.35K | 0.00 | 142.25K |
VISA INCSOLE | COM CL A | 1.84M | SH | $557.51M 1.60% | 1.55M | 0.00 | 298.10K |
STATE STR SPDR S&P 500 ETF TSOLE | TR UNIT | 845.29K | SH | $549.73M 1.58% | 706.61K | 0.00 | 138.68K |
IDEXX LABS INCSOLE | COM | 946.34K | SH | $531.74M 1.52% | 788.92K | 0.00 | 157.42K |
COSTCO WHOLESALE CORPORATIONSOLE | COM | 521.28K | SH | $519.42M 1.49% | 406.46K | 0.00 | 114.82K |
MASTERCARD INCORPORATEDSOLE | CL A | 923.40K | SH | $461.39M 1.32% | 735.04K | 0.00 | 188.37K |
META PLATFORMS INCSOLE | CL A | 721.72K | SH | $412.92M 1.18% | 602.30K | 0.00 | 119.42K |
FASTENAL COSOLE | COM | 7.37M | SH | $342.14M 0.98% | 4.58M | 0.00 | 2.79M |
INVESCO EXCHANGE TRADED FD TSOLE | S&P500 EQL WGT | 1.68M | SH | $322.54M 0.92% | 1.48M | 0.00 | 196.69K |
AMPHENOL CORPSOLE | CL A | 2.52M | SH | $318.44M 0.91% | 2.17M | 0.00 | 352.91K |
ISHARES TRSOLE | CORE S&P500 ETF | 485.84K | SH | $317.35M 0.91% | 412.31K | 0.00 | 73.53K |
VANGUARD INTL EQUITY INDEX FSOLE | ALLWRLD EX US | 4.17M | SH | $313.06M 0.90% | 3.72M | 0.00 | 444.19K |
ELI LILLY & COSOLE | COM | 324.02K | SH | $298.02M 0.85% | 229.70K | 0.00 | 94.32K |
WALMART INCSOLE | COM | 2.37M | SH | $295.08M 0.85% | 1.37M | 0.00 | 1.01M |
BWX TECHNOLOGIES INCSOLE | COM | 1.44M | SH | $294.08M 0.84% | 1.20M | 0.00 | 243.05K |
ABBVIE INCSOLE | COM | 1.33M | SH | $290.16M 0.83% | 1.08M | 0.00 | 252.66K |
BROADCOM INCSOLE | COM | 918.33K | SH | $284.23M 0.81% | 807.17K | 0.00 | 111.16K |
STRYKER CORPORATIONSOLE | COM | 847.70K | SH | $278.55M 0.80% | 582.64K | 0.00 | 265.06K |
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