Basic Stats
Portfolio Value $ 1,353,341,313
Current Positions 183
Latest Holdings, Performance, AUM (from 13F, 13D)

WBIGX - William Blair International Growth Fund Class N has disclosed 183 total holdings in their latest SEC filings. Most recent portfolio value is calculated to be $ 1,353,341,313 USD. Actual Assets Under Management (AUM) is this value plus cash (which is not disclosed). WBIGX - William Blair International Growth Fund Class N’s top holdings are Taiwan Semiconductor Manufacturing Company Limited - Depositary Receipt (Common Stock) (US:TSM) , Tencent Holdings Limited (DE:NNND) , 3i Group plc (DE:IGQ5) , SAP SE (DE:SAP) , and BAE Systems plc (GB:BA.) . WBIGX - William Blair International Growth Fund Class N’s new positions include Xiaomi Corporation (HK:1810) , Bharti Airtel Limited (IN:BHARTIARTL) , ORDINARY SHARES (FI:FI4000552500) , Waste Connections, Inc. (US:WCN) , and COCA COLA EUROPACIFIC COMPANY GUAR REGS 11/27 1.5 (UK:CCEP) .

WBIGX - William Blair International Growth Fund Class N - Portfolio Value
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Top Increases This Quarter

We use the change in the portfolio allocation because this is the most meaningful metric. Changes can be due to trades or changes in share prices.

Security Shares
(MM)		 Value
(MM$)		 Portfolio % ΔPortfolio %
0.20 46.39 3.4177 1.1077
13.91 1.0249 1.0249
1.48 11.29 0.8318 0.8318
0.45 10.53 0.7757 0.7757
0.90 9.63 0.7095 0.7095
0.05 9.08 0.6692 0.6692
0.06 11.76 0.8666 0.6462
0.08 17.16 1.2644 0.5576
0.07 6.75 0.4971 0.4971
0.51 6.68 0.4923 0.4923
Top Decreases This Quarter

We use the change in the portfolio allocation because this is the most meaningful metric. Changes can be due to trades or changes in share prices.

Security Shares
(MM)		 Value
(MM$)		 Portfolio % ΔPortfolio %
0.43 10.77 0.7932 -0.5292
0.06 17.43 1.2842 -0.4557
1.26 17.64 1.2992 -0.4369
0.46 7.21 0.5311 -0.4155
0.00 0.00 -0.3508
0.03 10.04 0.7394 -0.3266
0.07 3.43 0.2524 -0.3159
0.24 10.01 0.7371 -0.3003
0.04 6.90 0.5083 -0.2969
0.19 6.73 0.4957 -0.2355
13F and Fund Filings

This form was filed on 2025-08-20 for the reporting period 2025-06-30. Click the link icon to see the full transaction history.

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2022-07-28: Important Note - We have changed the treatment of the Δ Portfolio % column in this table. Previously, we were reporting it as the percent change in the portfolio allocation. We are now reporting it as the raw change in the portfolio allocation (still reported as a percent). In formula terms, we were previously reporting it as 100 * (current allocation - prior allocation ) / prior allocation. We are now reporting it as (current allocation - prior allocation).
Security Type Avg Share Price Shares
(MM)		 ΔShares
(%)		 ΔShares
(%)		 Value
($MM)		 Portfolio
(%)		 ΔPortfolio
(%)
TSM / Taiwan Semiconductor Manufacturing Company Limited - Depositary Receipt (Common Stock) 0.20 10.52 46.39 50.79 3.4177 1.1077
NNND / Tencent Holdings Limited 0.48 3.10 30.91 3.39 2.2771 0.0325
IGQ5 / 3i Group plc 0.43 -9.77 24.40 8.52 1.7972 0.1093
SAP / SAP SE 0.07 -9.77 21.59 2.39 1.5907 0.0074
BA. / BAE Systems plc 0.78 -9.77 20.14 15.71 1.4835 0.1768
LONN / Lonza Group AG 0.03 -9.77 17.96 4.01 1.3232 0.0265
2RR / Alibaba Group Holding Limited 1.26 -9.78 17.64 -23.73 1.2992 -0.4369
UCG / UniCredit S.p.A. 0.26 34.63 17.61 60.78 1.2973 0.4750
HO / Thales S.A. 0.06 -31.99 17.43 -24.78 1.2842 -0.4557
000660 / SK hynix Inc. 0.08 12.33 17.16 82.32 1.2644 0.5576
SE / Sea Limited - Depositary Receipt (Common Stock) 0.11 8.96 17.11 33.55 1.2605 0.2986
LSE N / London Stock Exchange Group plc 0.11 -9.77 16.46 -11.32 1.2124 -0.1809
RMS / Hermès International Société en commandite par actions 0.01 -9.76 15.57 -7.12 1.1469 -0.1116
HDFCB / HDFC Bank Ltd 0.66 30.66 15.50 43.16 1.1417 0.3289
ICICIBANK / ICICI Bank Limited 0.91 28.32 15.35 37.96 1.1306 0.2954
SPF / Spotify Technology S.A. 0.02 -9.77 14.55 25.88 1.0721 0.2041
SAF / Safran SA 0.04 -9.77 14.46 11.38 1.0651 0.0905
DLMAY / Dollarama Inc. - Depositary Receipt (Common Stock) 0.10 -9.77 14.01 18.89 1.0318 0.1473
DG / Vinci SA 0.09 19.90 13.96 40.17 1.0285 0.2806
FIXED INC CLEARING CORP.REPO / RA (000000000) 13.91 1.0249 1.0249
CHGCF / Chugai Pharmaceutical Co., Ltd. 0.25 -9.75 12.96 2.94 0.9547 0.0095
MTX / MTU Aero Engines AG 0.03 -9.77 12.84 15.37 0.9462 0.1104
H11 / Halma plc 0.29 -9.77 12.53 18.13 0.9227 0.1266
DS81 / DSV A/S 0.05 -19.27 12.48 0.31 0.9190 -0.0147
TKY / Tokyo Electron Limited 0.06 185.98 11.76 300.92 0.8666 0.6462
QJE / Pan Pacific International Holdings Corporation 0.34 -9.75 11.73 13.14 0.8638 0.0857
SBGSY / Schneider Electric S.E. - Depositary Receipt (Common Stock) 0.04 -24.22 11.42 -12.69 0.8410 -0.1407
1810 / Xiaomi Corporation 1.48 11.29 0.8318 0.8318
CNSWF / Constellation Software Inc. 0.00 -18.16 11.17 -5.25 0.8228 -0.0622
PBCRY / PT Bank Central Asia Tbk - Depositary Receipt (Common Stock) 20.81 -21.50 11.12 -17.91 0.8190 -0.1977
ISP / Intesa Sanpaolo S.p.A. 1.93 45.05 11.10 62.17 0.8174 0.3037
CPG N / Compass Group PLC 0.32 -9.77 10.96 -7.63 0.8075 -0.0834
ASML / ASML Holding N.V. 0.01 -31.78 10.95 -17.72 0.8068 -0.1926
BBVA / Banco Bilbao Vizcaya Argentaria, S.A. - Depositary Receipt (Common Stock) 0.70 -8.10 10.84 3.55 0.7985 0.0126
388 / Hong Kong Exchanges and Clearing Limited 0.20 -9.77 10.79 8.21 0.7951 0.0463
EXPGF / Experian plc 0.21 -9.77 10.78 0.29 0.7940 -0.0129
SMFNF / Sumitomo Mitsui Financial Group, Inc. 0.43 -37.71 10.77 -38.87 0.7932 -0.5292
RY / Royal Bank of Canada 0.08 -9.66 10.73 5.70 0.7905 0.0283
WSP / WSP Global Inc. 0.05 -9.77 10.67 8.46 0.7862 0.0474
SDZ / Sandoz Group AG 0.19 -9.77 10.64 17.75 0.7835 0.1053
RACE / Ferrari N.V. 0.02 -9.77 10.58 3.48 0.7795 0.0118
ASM / ASM International NV 0.02 33.85 10.57 88.03 0.7789 0.3567
RHM / Rheinmetall AG 0.00 -9.78 10.54 33.46 0.7767 0.1836
BHARTIARTL / Bharti Airtel Limited 0.45 10.53 0.7757 0.7757
MELI / MercadoLibre, Inc. 0.00 -9.79 10.52 20.86 0.7751 0.1215
IFC / Intact Financial Corporation 0.04 -21.65 10.40 -10.83 0.7660 -0.1095
BAM / Brookfield Asset Management Ltd. 0.19 -9.77 10.36 2.94 0.7630 0.0076
FLUT / Flutter Entertainment plc 0.04 -9.77 10.16 16.38 0.7486 0.0930
GOB / Compagnie de Saint-Gobain S.A. 0.09 -9.77 10.09 6.31 0.7434 0.0307
LIN / Linde plc 0.02 -9.77 10.07 -9.09 0.7421 -0.0898
HNR1 / Hannover Rück SE 0.03 -33.06 10.04 -29.31 0.7394 -0.3266
MH6 / Tokio Marine Holdings, Inc. 0.24 -33.61 10.01 -27.59 0.7371 -0.3003
SIKA / Sika AG 0.04 -9.77 9.99 0.56 0.7361 -0.0099
HEI / Heidelberg Materials AG 0.04 -9.77 9.89 22.98 0.7289 0.1248
RDEB / RELX PLC 0.18 -9.77 9.84 -2.93 0.7250 -0.0362
DP9 / Diploma PLC 0.15 -22.85 9.81 3.41 0.7223 0.0104
KYCCF / Keyence Corporation 0.02 -10.04 9.72 -8.11 0.7160 -0.0781
KSP / Kingspan Group PLC 0.11 -9.77 9.68 -5.00 0.7132 -0.0520
HLN / Haleon plc - Depositary Receipt (Common Stock) 1.88 -9.77 9.64 -8.18 0.7099 -0.0781
FI4000552500 / ORDINARY SHARES 0.90 9.63 0.7095 0.7095
AIR / Airbus SE 0.05 -9.77 9.45 6.99 0.6959 0.0330
ACO4 / Atlas Copco AB (publ) 0.58 -9.77 9.42 -8.74 0.6938 -0.0810
CB / Chubb Limited 0.03 -9.77 9.25 -13.44 0.6817 -0.1209
1299 / AIA Group Limited 1.03 -9.77 9.25 6.91 0.6813 0.0318
WCN / Waste Connections, Inc. 0.05 9.08 0.6692 0.6692
FP / TotalEnergies SE 0.15 -9.77 8.93 -14.06 0.6577 -0.1223
UNA / Unilever PLC 0.14 -19.81 8.69 -14.46 0.6399 -0.1053
EVD / CTS Eventim AG & Co. KGaA 0.07 -9.77 8.66 11.68 0.6377 0.0557
ACGL / Arch Capital Group Ltd. 0.09 23.82 8.59 17.22 0.6328 0.0826
IFNNY / Infineon Technologies AG - Depositary Receipt (Common Stock) 0.19 33.55 8.10 70.42 0.5964 0.2397
UCB / UCB SA 0.04 8.79 8.02 21.51 0.5909 0.0953
EBS / Erste Group Bank AG 0.09 -9.77 7.74 11.10 0.5702 0.0471
HYB / HOYA Corporation 0.06 -9.67 7.56 -4.65 0.5573 -0.0384
ASI1 / ASICS Corporation 0.29 -9.76 7.51 8.73 0.5533 0.0347
2020 / ANTA Sports Products Limited 0.60 -9.78 7.28 -1.22 0.5365 -0.0170
PME / Pro Medicus Limited 0.04 -9.77 7.24 33.76 0.5336 0.1270
BY6 / BYD Company Limited 0.46 85.54 7.21 -42.82 0.5311 -0.4155
BRZ0 / Beijer Ref AB (publ) 0.44 -9.77 7.02 1.26 0.5171 -0.0034
CP / Canadian Pacific Kansas City Limited 0.09 -9.66 6.95 2.00 0.5118 0.0004
ENX / Euronext N.V. 0.04 -45.37 6.90 -35.66 0.5083 -0.2969
ENEL / Enel SpA 0.72 -44.89 6.80 -24.17 0.5012 -0.0606
CCEP / COCA COLA EUROPACIFIC COMPANY GUAR REGS 11/27 1.5 0.07 6.75 0.4971 0.4971
DEVL / DBS Group Holdings Ltd 0.19 -32.83 6.73 -30.92 0.4957 -0.2355
BKT / Bankinter, S.A. 0.51 6.68 0.4923 0.4923
2D7 / Beazley plc 0.52 19.77 6.63 27.64 0.4885 0.0984
NSIS N / Novozymes A/S 0.09 6.49 0.4781 0.4781
WTKWY / Wolters Kluwer N.V. - Depositary Receipt (Common Stock) 0.04 -9.77 6.49 -3.11 0.4779 -0.0247
2454 / MediaTek Inc. 0.15 -6.79 6.46 -7.46 0.4760 -0.0482
M&M / Mahindra & Mahindra Limited 0.17 -9.77 6.42 7.93 0.4732 0.0264
TMTNF / Toromont Industries Ltd. 0.07 -9.77 6.36 3.60 0.4686 0.0077
A5G / AIB Group plc 0.76 -40.82 6.28 -24.61 0.4627 -0.1628
3064 / MonotaRO Co., Ltd. 0.28 -9.73 5.61 -4.55 0.4130 -0.0279
G24 / Scout24 SE 0.04 -9.77 5.59 18.86 0.4118 0.0587
PGHN / Partners Group Holding AG 0.00 -9.76 5.53 -17.29 0.4076 -0.0947
VACN / VAT Group AG 0.01 164.46 5.49 195.43 0.4044 0.2680
BC / Brunello Cucinelli S.p.A. 0.04 -9.77 5.33 -4.51 0.3930 -0.0265
BID / Bid Corporation Limited 0.20 0.19 5.27 10.30 0.3881 0.0295
XRO / Xero Limited 0.04 -9.77 5.16 9.25 0.3801 0.0255
6383 / Daifuku Co., Ltd. 0.20 -9.79 5.14 -5.15 0.3789 -0.0282
ICP / Panamax New Energy AG 0.19 -27.57 5.14 -24.75 0.3788 -0.1342
539448 / InterGlobe Aviation Limited 0.07 -9.77 4.93 5.57 0.3633 0.0125
OTE1V / Metso Outotec Oyj 0.37 -9.77 4.81 12.55 0.3542 0.0335
IMCD / IMCD N.V. 0.04 -9.77 4.72 -8.93 0.3478 -0.0414
BHE / Bharat Electronics Ltd 0.95 -9.77 4.70 27.18 0.3465 0.0688
TNE / Technology One Limited 0.17 -9.77 4.65 38.48 0.3423 0.0903
QBEIF / QBE Insurance Group Limited 0.30 4.64 0.3416 0.3416
AC8 / Aristocrat Leisure Limited 0.11 -41.84 4.62 -38.33 0.3406 -0.2222
LISP / Chocoladefabriken Lindt & Sprüngli AG - Preferred Stock 0.00 -9.73 4.53 12.34 0.3334 0.0309
INE066F01020 / Hindustan Aeronautics Ltd. 0.08 4.48 0.3303 0.3303
SY1 / Symrise AG 0.04 -9.77 4.36 -8.62 0.3211 -0.0370
DISPF / Disco Corporation 0.01 28.95 4.35 86.90 0.3206 0.1458
VU / VusionGroup S.A. 0.01 -9.77 4.35 36.22 0.3205 0.0807
2308 / Delta Electronics, Inc. 0.31 -9.71 4.34 15.43 0.3197 0.0374
NEM / Nemetschek SE 0.03 -9.77 4.24 12.13 0.3120 0.0284
WEIGF / The Weir Group PLC 0.12 -9.77 4.12 2.08 0.3038 0.0005
NURAF / Nomura Research Institute, Ltd. 0.10 -9.74 4.06 11.34 0.2988 0.0253
GALE / Galenica AG 0.04 -9.77 4.02 9.76 0.2959 0.0211
30T / TechnoPro Holdings, Inc. 0.14 -9.69 3.97 19.13 0.2927 0.0423
SQN / Swissquote Group Holding Ltd 0.01 -9.77 3.94 18.33 0.2901 0.0402
MSMKF / MatsukiyoCocokara & Co. 0.19 -9.79 3.91 18.83 0.2883 0.0410
WEGE3 / WEG S.A. 0.49 -9.77 3.88 -10.47 0.2860 -0.0395
N5G / Rakuten Bank, Ltd. 0.08 -9.83 3.84 -4.74 0.2826 -0.0198
INDHOTEL / The Indian Hotels Company Limited 0.43 -9.77 3.78 -12.50 0.2784 -0.0459
MAXHEALT / Max Healthcare Institute Ltd 0.25 17.32 3.69 35.75 0.2716 0.0677
BESI / BE Semiconductor Industries N.V. 0.02 27.31 3.65 82.31 0.2688 0.1185
RNKGF / RENK Group AG 0.05 3.60 0.2652 0.2652
LTMC / Lottomatica Group S.p.A. 0.13 3.49 0.2573 0.2573
RO41 / Rotork plc 0.79 -9.77 3.48 -2.16 0.2567 -0.0106
CPI / Capitec Bank Holdings Limited 0.02 -9.78 3.47 6.41 0.2556 0.0108
AZM / Azimut Holding S.p.A. 0.11 41.74 3.46 62.05 0.2546 0.0945
INE066A01021 / Eicher Motors Ltd 0.05 3.44 0.2536 0.2536
600660 / Fuyao Glass Industry Group Co., Ltd. 0.43 -9.79 3.43 -10.80 0.2525 -0.0360
IDEXY / Industria de Diseño Textil, S.A. - Depositary Receipt (Common Stock) 0.07 -56.69 3.43 -54.74 0.2524 -0.3159
6532 / Baycurrent, Inc. 0.07 -9.96 3.40 7.05 0.2505 0.0120
D8V / Credicorp Ltd. 0.02 -9.77 3.39 8.34 0.2499 0.0148
EMBR3 / Embraer S.A. 0.23 -9.77 3.33 11.01 0.2451 0.0201
1L30 / Lifco AB (publ) 0.08 -39.75 3.32 -31.28 0.2442 -0.1180
SDF / Steadfast Group Limited 0.83 -9.77 3.28 -1.82 0.2418 -0.0093
PKIUF / Parkland Corporation 0.11 -9.77 3.20 1.94 0.2358 0.0001
SE0015671995 / Hemnet Group AB 0.11 -9.77 3.18 -20.49 0.2342 -0.0659
XST / Sanwa Holdings Corporation 0.10 35.61 3.17 40.54 0.2332 0.0641
JPEVF / Japan Elevator Service Holdings Co.,Ltd. 0.11 -9.74 3.15 41.58 0.2323 0.0651
INE670K01029 / Macrotech Developers Ltd 0.20 45.78 3.15 68.61 0.2323 0.0919
DIE / Dierig Holding AG 0.01 -9.77 3.13 12.55 0.2306 0.0218
SFZN / Siegfried Holding AG 0.03 3.13 0.2303 0.2303
1N8 / Adyen N.V. 0.00 -9.74 3.08 8.11 0.2268 0.0130
ZOMATO / Eternal Limited 0.99 -9.77 3.04 18.52 0.2240 0.0314
SAR / ZOZO, Inc. 0.27 -9.75 2.90 1.86 0.2137 -0.0001
2395 / Advantech Co., Ltd. 0.23 -9.96 2.74 -8.28 0.2015 -0.0224
ASR / Grupo Aeroportuario del Sureste, S. A. B. de C. V. - Depositary Receipt (Common Stock) 0.01 -9.76 2.69 5.11 0.1984 0.0060
I1M / Indutrade AB (publ) 0.10 -35.73 2.64 -36.71 0.1946 -0.1187
1LNB / Spirax Group plc 0.03 -9.77 2.62 -8.53 0.1928 -0.0220
SCT / SSE plc 0.11 -9.77 2.61 3.78 0.1919 0.0034
SRAD / Sportradar Group AG 0.09 -9.77 2.54 17.17 0.1871 0.0244
AZZ2 / Addtech AB (publ.) 0.07 -9.77 2.50 4.87 0.1840 0.0052
FPH / Fisher & Paykel Healthcare Corporation Limited 0.11 -9.77 2.49 3.88 0.1835 0.0035
M1Z / Nu Holdings Ltd. 0.18 -9.77 2.45 20.91 0.1807 0.0284
3529 / eMemory Technology Inc. 0.03 -6.25 2.42 7.74 0.1785 0.0096
BARC / Barclays PLC 0.52 -54.56 2.41 -44.04 0.1775 -0.1458
AG1 / AUTO1 Group SE 0.07 -9.77 2.41 30.73 0.1774 0.0391
IPN / Ipsen S.A. 0.02 -9.77 2.39 -6.72 0.1759 -0.0163
1590 / Airtac International Group 0.08 -11.15 2.38 4.30 0.1751 0.0040
IIJIF / Internet Initiative Japan Inc. 0.12 -9.82 2.32 2.38 0.1709 0.0008
KWI / Kurita Water Industries Ltd. 0.06 -9.89 2.27 15.28 0.1673 0.0194
FTK / flatexDEGIRO AG 0.08 -3.68 2.26 17.67 0.1664 0.0223
HDFCAMC / HDFC Asset Management Company Limited 0.04 -9.77 2.20 16.95 0.1622 0.0208
OMAB / Grupo Aeroportuario del Centro Norte SAB de CV 0.16 2.15 0.1584 0.1584
5B8 / ABC-Mart,Inc. 0.10 2.13 0.1571 0.1571
N1C / Clicks Group Limited 0.10 -9.77 2.13 2.11 0.1568 0.0003
CAMS / Computer Age Management Services Limited 0.04 2.13 0.1567 0.1567
APOLLOHOSP / Apollo Hospitals Enterprise Limited 0.02 -9.77 2.09 -1.37 0.1542 -0.0051
ALDAR / Aldar Properties PJSC 0.85 -9.77 2.07 -4.03 0.1528 -0.0095
XGJ / Gjensidige Forsikring ASA 0.08 70.10 2.05 197.67 0.1509 0.1054
AC / Arca Continental, S.A.B. de C.V. 0.18 1.90 0.1402 0.1402
SHAOF / SHIMAMURA Co., Ltd. 0.03 1.88 0.1387 0.1387
VALMT / Valmet Oyj 0.06 -9.77 1.86 2.99 0.1371 0.0014
6409 / Voltronic Power Technology Corp. 0.04 -8.70 1.81 -15.81 0.1335 -0.0280
7W71 / Sweco AB (publ) 0.10 -37.13 1.73 -18.66 0.1276 -0.0218
MMYT / MakeMyTrip Limited 0.02 -9.77 1.72 -9.73 0.1265 -0.0163
BYDGF / Boyd Group Services Inc. 0.01 -9.77 1.65 -1.43 0.1219 -0.0041
1RY / LPP SA 0.00 -9.74 1.58 -19.48 0.1166 -0.0310
7HL / Hill & Smith PLC 0.06 -9.77 1.55 -2.20 0.1144 -0.0049
QY6 / QinetiQ Group plc 0.20 -9.77 1.40 27.36 0.1033 0.0206
A267260 / HD Hyundai Electric Co., Ltd. 0.00 -100.00 0.00 -100.00 -0.1497
TEAM / Atlassian Corporation 0.00 -100.00 0.00 -100.00 -0.3508
HAVELLS / Havells India Limited 0.00 -100.00 0.00 -100.00 -0.1636
6669 / Wiwynn Corporation 0.00 -100.00 0.00 -100.00 -0.1673