Filed: 7/24/2025ACC: 0001104659-25-070274
📋 What this filing means
BLAIR WILLIAM & CO/IL filed this quarterly 13F‑HR report disclosing 1824 equity positions with a total reported market value of $36.00B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
1824
Positions
$36.00B
Total AUM (reported)
268.81M
Total Shares
Allocation by class
COM$23.85B66.2%
CL A$3.01B8.4%
COM CL A$1.04B2.9%
COM NEW$620.79M1.7%
CAP STK CL C$564.11M1.6%
TR UNIT$531.86M1.5%
CAP STK CL A$445.00M1.2%
Portfolio Concentration
Top 3$4.42B12.3%
4–10$4.55B12.6%
11–25$5.51B15.3%
Rest$21.52B59.8%
Top 3 weight
12.3%
Top 10 weight
24.9%
Voting Authority Distribution
Total shares with voting rights: 268.81M
Sole
Full voting authority
216.50M
shares
% of voting shares80.5%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
52.32M
shares
% of voting shares19.5%
Investment Discretion (by position count)
Sole1824
Shared0
Other0
Dominant voting typeSole · 80.5% of voting shares
Institutional Holdings1824
Rows:
MICROSOFT CORP
SOLEShares3.70M
TypeSH
Market value$1.84B
5.11%
Sole
2.84M
Shared
0.00
None
859.23K
AMAZON COM INC
SOLEShares6.12M
TypeSH
Market value$1.34B
3.73%
Sole
4.78M
Shared
0.00
None
1.35M
APPLE INC
SOLEShares6.03M
TypeSH
Market value$1.24B
3.43%
Sole
4.58M
Shared
0.00
None
1.44M
NVIDIA CORPORATION
SOLEShares5.60M
TypeSH
Market value$884.61M
2.46%
Sole
4.41M
Shared
0.00
None
1.19M
VISA INC
SOLEShares2.07M
TypeSH
Market value$735.33M
2.04%
Sole
1.78M
Shared
0.00
None
286.77K
JPMORGAN CHASE & CO.
SOLEShares2.33M
TypeSH
Market value$675.42M
1.88%
Sole
1.60M
Shared
0.00
None
734.62K
IDEXX LABS INC
SOLEShares1.08M
TypeSH
Market value$579.52M
1.61%
Sole
892.41K
Shared
0.00
None
188.09K
MASTERCARD INCORPORATED
SOLEShares1.01M
TypeSH
Market value$566.05M
1.57%
Sole
790.01K
Shared
0.00
None
217.31K
ALPHABET INC
SOLEShares3.18M
TypeSH
Market value$564.11M
1.57%
Sole
2.64M
Shared
0.00
None
536.41K
COSTCO WHSL CORP NEW
SOLEShares551.99K
TypeSH
Market value$546.43M
1.52%
Sole
439.96K
Shared
0.00
None
112.02K
SPDR S&P 500 ETF TR
SOLEShares859.66K
TypeSH
Market value$531.14M
1.48%
Sole
749.78K
Shared
0.00
None
109.89K
ALPHABET INC
SOLEShares2.53M
TypeSH
Market value$445.00M
1.24%
Sole
1.94M
Shared
0.00
None
589.21K
META PLATFORMS INC
SOLEShares576.60K
TypeSH
Market value$425.58M
1.18%
Sole
483.30K
Shared
0.00
None
93.30K
UBER TECHNOLOGIES INC
SOLEShares4.32M
TypeSH
Market value$403.43M
1.12%
Sole
3.23M
Shared
0.00
None
1.09M
PROGRESSIVE CORP
SOLEShares1.51M
TypeSH
Market value$401.74M
1.12%
Sole
1.34M
Shared
0.00
None
160.88K
VEEVA SYS INC
SOLEShares1.28M
TypeSH
Market value$370.04M
1.03%
Sole
1.04M
Shared
0.00
None
241.63K
STRYKER CORPORATION
SOLEShares924.26K
TypeSH
Market value$365.66M
1.02%
Sole
643.60K
Shared
0.00
None
280.66K
FISERV INC
SOLEShares2.11M
TypeSH
Market value$363.36M
1.01%
Sole
1.80M
Shared
0.00
None
307.78K
WATSCO INC
SOLEShares806.66K
TypeSH
Market value$356.24M
0.99%
Sole
644.56K
Shared
0.00
None
162.10K
SERVICENOW INC
SOLEShares327.79K
TypeSH
Market value$336.99M
0.94%
Sole
268.87K
Shared
0.00
None
58.92K
GE VERNOVA INC
SOLEShares632.81K
TypeSH
Market value$334.85M
0.93%
Sole
515.98K
Shared
0.00
None
116.83K
INTERCONTINENTAL EXCHANGE IN
SOLEShares1.75M
TypeSH
Market value$321.60M
0.89%
Sole
1.20M
Shared
0.00
None
556.36K
AMPHENOL CORP NEW
SOLEShares2.97M
TypeSH
Market value$293.43M
0.82%
Sole
2.57M
Shared
0.00
None
404.85K
FASTENAL CO
SOLEShares6.82M
TypeSH
Market value$286.56M
0.80%
Sole
3.93M
Shared
0.00
None
2.89M
HOME DEPOT INC
SOLEShares759.36K
TypeSH
Market value$278.41M
0.77%
Sole
565.75K
Shared
0.00
None
193.60K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
MICROSOFT CORPSOLE | COM | 3.70M | SH | $1.84B 5.11% | 2.84M | 0.00 | 859.23K |
AMAZON COM INCSOLE | COM | 6.12M | SH | $1.34B 3.73% | 4.78M | 0.00 | 1.35M |
APPLE INCSOLE | COM | 6.03M | SH | $1.24B 3.43% | 4.58M | 0.00 | 1.44M |
NVIDIA CORPORATIONSOLE | COM | 5.60M | SH | $884.61M 2.46% | 4.41M | 0.00 | 1.19M |
VISA INCSOLE | COM CL A | 2.07M | SH | $735.33M 2.04% | 1.78M | 0.00 | 286.77K |
JPMORGAN CHASE & CO.SOLE | COM | 2.33M | SH | $675.42M 1.88% | 1.60M | 0.00 | 734.62K |
IDEXX LABS INCSOLE | COM | 1.08M | SH | $579.52M 1.61% | 892.41K | 0.00 | 188.09K |
MASTERCARD INCORPORATEDSOLE | CL A | 1.01M | SH | $566.05M 1.57% | 790.01K | 0.00 | 217.31K |
ALPHABET INCSOLE | CAP STK CL C | 3.18M | SH | $564.11M 1.57% | 2.64M | 0.00 | 536.41K |
COSTCO WHSL CORP NEWSOLE | COM | 551.99K | SH | $546.43M 1.52% | 439.96K | 0.00 | 112.02K |
SPDR S&P 500 ETF TRSOLE | TR UNIT | 859.66K | SH | $531.14M 1.48% | 749.78K | 0.00 | 109.89K |
ALPHABET INCSOLE | CAP STK CL A | 2.53M | SH | $445.00M 1.24% | 1.94M | 0.00 | 589.21K |
META PLATFORMS INCSOLE | CL A | 576.60K | SH | $425.58M 1.18% | 483.30K | 0.00 | 93.30K |
UBER TECHNOLOGIES INCSOLE | COM | 4.32M | SH | $403.43M 1.12% | 3.23M | 0.00 | 1.09M |
PROGRESSIVE CORPSOLE | COM | 1.51M | SH | $401.74M 1.12% | 1.34M | 0.00 | 160.88K |
VEEVA SYS INCSOLE | CL A COM | 1.28M | SH | $370.04M 1.03% | 1.04M | 0.00 | 241.63K |
STRYKER CORPORATIONSOLE | COM | 924.26K | SH | $365.66M 1.02% | 643.60K | 0.00 | 280.66K |
FISERV INCSOLE | COM | 2.11M | SH | $363.36M 1.01% | 1.80M | 0.00 | 307.78K |
WATSCO INCSOLE | COM | 806.66K | SH | $356.24M 0.99% | 644.56K | 0.00 | 162.10K |
SERVICENOW INCSOLE | COM | 327.79K | SH | $336.99M 0.94% | 268.87K | 0.00 | 58.92K |
GE VERNOVA INCSOLE | COM | 632.81K | SH | $334.85M 0.93% | 515.98K | 0.00 | 116.83K |
INTERCONTINENTAL EXCHANGE INSOLE | COM | 1.75M | SH | $321.60M 0.89% | 1.20M | 0.00 | 556.36K |
AMPHENOL CORP NEWSOLE | CL A | 2.97M | SH | $293.43M 0.82% | 2.57M | 0.00 | 404.85K |
FASTENAL COSOLE | COM | 6.82M | SH | $286.56M 0.80% | 3.93M | 0.00 | 2.89M |
HOME DEPOT INCSOLE | COM | 759.36K | SH | $278.41M 0.77% | 565.75K | 0.00 | 193.60K |
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