Filed: 5/8/2026ACC: 0001644956-26-000021
📋 What this filing means
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC filed this quarterly 13F‑HR report disclosing 413 equity positions with a total reported market value of $30.26B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
413
Positions
$30.26B
Total AUM (reported)
408.92M
Total Shares
Allocation by class
COM$19.61B64.8%
CL A$2.42B8.0%
SPONSORED ADS$1.95B6.5%
CAP STK CL A$720.22M2.4%
COM NEW$693.81M2.3%
SHS$661.74M2.2%
COM CL A$621.47M2.1%
Portfolio Concentration
Top 3$4.65B15.4%
4–10$4.62B15.3%
11–25$3.64B12.0%
Rest$17.35B57.3%
Top 3 weight
15.4%
Top 10 weight
30.6%
Voting Authority Distribution
Total shares with voting rights: 408.92M
Sole
Full voting authority
345.50M
shares
% of voting shares84.5%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
63.42M
shares
% of voting shares15.5%
Investment Discretion (by position count)
Sole413
Shared0
Other0
Dominant voting typeSole · 84.5% of voting shares
Institutional Holdings413
Rows:
TAIWAN SEMICONDUCTOR MANUFAC
SOLEShares5.52M
TypeSH
Market value$1.87B
6.16%
Sole
4.38M
Shared
0.00
None
1.14M
NVIDIA CORPORATION
SOLEShares8.94M
TypeSH
Market value$1.56B
5.15%
Sole
7.91M
Shared
0.00
None
1.03M
APPLE INC
SOLEShares4.81M
TypeSH
Market value$1.22B
4.04%
Sole
4.26M
Shared
0.00
None
550.17K
MICROSOFT CORP
SOLEShares2.90M
TypeSH
Market value$1.07B
3.54%
Sole
2.56M
Shared
0.00
None
333.23K
ALPHABET INC
SOLEShares2.50M
TypeSH
Market value$720.22M
2.38%
Sole
2.22M
Shared
0.00
None
287.45K
BROADCOM INC
SOLEShares2.20M
TypeSH
Market value$681.40M
2.25%
Sole
1.96M
Shared
0.00
None
244.73K
AMAZON COM INC
SOLEShares3.16M
TypeSH
Market value$658.89M
2.18%
Sole
2.79M
Shared
0.00
None
369.46K
META PLATFORMS INC
SOLEShares1.01M
TypeSH
Market value$579.64M
1.92%
Sole
897.60K
Shared
0.00
None
115.52K
MASTERCARD INCORPORATED
SOLEShares1.06M
TypeSH
Market value$529.96M
1.75%
Sole
939.40K
Shared
0.00
None
121.25K
ASTRAZENECA PLC
SOLEShares1.94M
TypeSH
Market value$377.34M
1.25%
Sole
1.59M
Shared
0.00
None
351.73K
LINDE PLC
SOLEShares636.34K
TypeSH
Market value$315.47M
1.04%
Sole
549.50K
Shared
0.00
None
86.84K
CARLYLE GROUP INC
SOLEShares6.30M
TypeSH
Market value$304.91M
1.01%
Sole
5.83M
Shared
0.00
None
472.94K
COSTCO WHOLESALE CORPORATION
SOLEShares302.47K
TypeSH
Market value$301.39M
1.00%
Sole
268.46K
Shared
0.00
None
34.01K
ITAU UNIBANCO HLDG S A
SOLEShares31.68M
TypeSH
Market value$265.63M
0.88%
Sole
25.82M
Shared
0.00
None
5.87M
TWIST BIOSCIENCE CORP
SOLEShares5.27M
TypeSH
Market value$250.42M
0.83%
Sole
4.84M
Shared
0.00
None
432.74K
SERVICENOW INC
SOLEShares2.37M
TypeSH
Market value$247.95M
0.82%
Sole
2.11M
Shared
0.00
None
259.85K
PRIMO BRANDS CORPORATION
SOLEShares13.06M
TypeSH
Market value$245.85M
0.81%
Sole
12.11M
Shared
0.00
None
950.21K
MUELLER INDS INC
SOLEShares2.11M
TypeSH
Market value$233.76M
0.77%
Sole
2M
Shared
0.00
None
107.30K
INTUIT
SOLEShares533.74K
TypeSH
Market value$230.78M
0.76%
Sole
475.47K
Shared
0.00
None
58.27K
MONSTER BEVERAGE CORP NEW
SOLEShares2.94M
TypeSH
Market value$212.69M
0.70%
Sole
2.61M
Shared
0.00
None
323.12K
ADVANCED MICRO DEVICES INC
SOLEShares1.04M
TypeSH
Market value$212.09M
0.70%
Sole
937.40K
Shared
0.00
None
105.19K
CREDICORP LTD
SOLEShares622.69K
TypeSH
Market value$211.20M
0.70%
Sole
503.67K
Shared
0.00
None
119.02K
AGILENT TECHNOLOGIES INC
SOLEShares1.80M
TypeSH
Market value$204.68M
0.68%
Sole
1.62M
Shared
0.00
None
178.16K
OREILLY AUTOMOTIVE INC
SOLEShares2.21M
TypeSH
Market value$204.01M
0.67%
Sole
1.97M
Shared
0.00
None
244.28K
BWX TECHNOLOGIES INC
SOLEShares981.78K
TypeSH
Market value$200.76M
0.66%
Sole
918.41K
Shared
0.00
None
63.38K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
TAIWAN SEMICONDUCTOR MANUFACSOLE | SPONSORED ADS | 5.52M | SH | $1.87B 6.16% | 4.38M | 0.00 | 1.14M |
NVIDIA CORPORATIONSOLE | COM | 8.94M | SH | $1.56B 5.15% | 7.91M | 0.00 | 1.03M |
APPLE INCSOLE | COM | 4.81M | SH | $1.22B 4.04% | 4.26M | 0.00 | 550.17K |
MICROSOFT CORPSOLE | COM | 2.90M | SH | $1.07B 3.54% | 2.56M | 0.00 | 333.23K |
ALPHABET INCSOLE | CAP STK CL A | 2.50M | SH | $720.22M 2.38% | 2.22M | 0.00 | 287.45K |
BROADCOM INCSOLE | COM | 2.20M | SH | $681.40M 2.25% | 1.96M | 0.00 | 244.73K |
AMAZON COM INCSOLE | COM | 3.16M | SH | $658.89M 2.18% | 2.79M | 0.00 | 369.46K |
META PLATFORMS INCSOLE | CL A | 1.01M | SH | $579.64M 1.92% | 897.60K | 0.00 | 115.52K |
MASTERCARD INCORPORATEDSOLE | CL A | 1.06M | SH | $529.96M 1.75% | 939.40K | 0.00 | 121.25K |
ASTRAZENECA PLCSOLE | ORD | 1.94M | SH | $377.34M 1.25% | 1.59M | 0.00 | 351.73K |
LINDE PLCSOLE | SHS | 636.34K | SH | $315.47M 1.04% | 549.50K | 0.00 | 86.84K |
CARLYLE GROUP INCSOLE | COM | 6.30M | SH | $304.91M 1.01% | 5.83M | 0.00 | 472.94K |
COSTCO WHOLESALE CORPORATIONSOLE | COM | 302.47K | SH | $301.39M 1.00% | 268.46K | 0.00 | 34.01K |
ITAU UNIBANCO HLDG S ASOLE | SPON ADR REP PFD | 31.68M | SH | $265.63M 0.88% | 25.82M | 0.00 | 5.87M |
TWIST BIOSCIENCE CORPSOLE | COM | 5.27M | SH | $250.42M 0.83% | 4.84M | 0.00 | 432.74K |
SERVICENOW INCSOLE | COM | 2.37M | SH | $247.95M 0.82% | 2.11M | 0.00 | 259.85K |
PRIMO BRANDS CORPORATIONSOLE | CLASS A COM SHS | 13.06M | SH | $245.85M 0.81% | 12.11M | 0.00 | 950.21K |
MUELLER INDS INCSOLE | COM | 2.11M | SH | $233.76M 0.77% | 2M | 0.00 | 107.30K |
INTUITSOLE | COM | 533.74K | SH | $230.78M 0.76% | 475.47K | 0.00 | 58.27K |
MONSTER BEVERAGE CORP NEWSOLE | COM | 2.94M | SH | $212.69M 0.70% | 2.61M | 0.00 | 323.12K |
ADVANCED MICRO DEVICES INCSOLE | COM | 1.04M | SH | $212.09M 0.70% | 937.40K | 0.00 | 105.19K |
CREDICORP LTDSOLE | COM | 622.69K | SH | $211.20M 0.70% | 503.67K | 0.00 | 119.02K |
AGILENT TECHNOLOGIES INCSOLE | COM | 1.80M | SH | $204.68M 0.68% | 1.62M | 0.00 | 178.16K |
OREILLY AUTOMOTIVE INCSOLE | COM | 2.21M | SH | $204.01M 0.67% | 1.97M | 0.00 | 244.28K |
BWX TECHNOLOGIES INCSOLE | COM | 981.78K | SH | $200.76M 0.66% | 918.41K | 0.00 | 63.38K |
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