Basic Stats
Portfolio Value $ 973,752,326
Current Positions 183
Latest Holdings, Performance, AUM (from 13F, 13D)

WBIIX - William Blair Institutional International Growth Fund Institutional Class has disclosed 183 total holdings in their latest SEC filings. Most recent portfolio value is calculated to be $ 973,752,326 USD. Actual Assets Under Management (AUM) is this value plus cash (which is not disclosed). WBIIX - William Blair Institutional International Growth Fund Institutional Class’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.) . WBIIX - William Blair Institutional International Growth Fund Institutional Class’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) .

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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 %
18.47 1.8930 1.8930
0.15 33.08 3.3897 1.0826
1.06 8.08 0.8276 0.8276
0.32 7.51 0.7693 0.7693
0.64 6.87 0.7037 0.7037
0.03 6.48 0.6637 0.6637
0.04 8.38 0.8587 0.6392
0.06 12.28 1.2581 0.5531
0.05 4.81 0.4930 0.4930
0.37 4.77 0.4883 0.4883
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 %
0.30 7.68 0.7868 -0.5321
0.04 12.43 1.2737 -0.4617
0.90 12.58 1.2886 -0.4431
0.33 5.18 0.5309 -0.4118
0.00 0.00 -0.3499
0.02 7.16 0.7334 -0.3299
0.05 2.45 0.2512 -0.3156
0.17 7.13 0.7309 -0.3037
0.03 4.92 0.5041 -0.2989
0.14 4.80 0.4917 -0.2379
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) 0.15 16.80 33.08 59.37 3.3897 1.0826
NNND / Tencent Holdings Limited 0.34 9.14 22.04 9.45 2.2585 0.0202
FIXED INC CLEARING CORP.REPO / RA (000000000) 18.47 1.8930 1.8930
IGQ5 / 3i Group plc 0.31 -4.51 17.40 14.85 1.7825 0.0990
SAP / SAP SE 0.05 -4.51 15.40 8.37 1.5776 -0.0015
BA. / BAE Systems plc 0.55 -4.51 14.36 22.45 1.4714 0.1680
LONN / Lonza Group AG 0.02 -4.51 12.81 10.07 1.3124 0.0190
2RR / Alibaba Group Holding Limited 0.90 -4.52 12.58 -19.29 1.2886 -0.4431
UCG / UniCredit S.p.A. 0.19 42.48 12.56 70.16 1.2866 0.4665
HO / Thales S.A. 0.04 -28.03 12.43 -20.39 1.2737 -0.4617
000660 / SK hynix Inc. 0.06 19.27 12.28 93.57 1.2581 0.5531
SE / Sea Limited - Depositary Receipt (Common Stock) 0.08 15.69 12.24 41.81 1.2542 0.2948
LSE N / London Stock Exchange Group plc 0.08 -4.51 11.74 -6.15 1.2024 -0.1873
RMS / Hermès International Société en commandite par actions 0.00 -4.50 11.10 -1.70 1.1377 -0.1177
HDFCB / HDFC Bank Ltd 0.47 38.28 11.05 51.51 1.1324 0.3217
ICICIBANK / ICICI Bank Limited 0.65 35.80 10.94 46.00 1.1213 0.2883
SPF / Spotify Technology S.A. 0.01 -4.51 10.38 33.21 1.0633 0.1975
SAF / Safran SA 0.03 -4.51 10.31 17.87 1.0564 0.0843
DLMAY / Dollarama Inc. - Depositary Receipt (Common Stock) 0.07 -4.51 9.99 25.81 1.0234 0.1411
DG / Vinci SA 0.07 26.89 9.96 48.34 1.0200 0.2741
CHGCF / Chugai Pharmaceutical Co., Ltd. 0.18 -4.54 9.24 8.89 0.9466 0.0037
MTX / MTU Aero Engines AG 0.02 -4.51 9.16 22.10 0.9385 0.1048
H11 / Halma plc 0.20 -4.51 8.93 25.01 0.9151 0.1211
DS81 / DSV A/S 0.04 -14.57 8.90 6.16 0.9115 -0.0198
TKY / Tokyo Electron Limited 0.04 202.78 8.38 324.52 0.8587 0.6392
QJE / Pan Pacific International Holdings Corporation 0.24 -4.48 8.36 19.75 0.8567 0.0807
SBGSY / Schneider Electric S.E. - Depositary Receipt (Common Stock) 0.03 -19.80 8.14 -7.59 0.8341 -0.1450
1810 / Xiaomi Corporation 1.06 8.08 0.8276 0.8276
CNSWF / Constellation Software Inc. 0.00 -13.40 7.96 0.28 0.8160 -0.0667
PBCRY / PT Bank Central Asia Tbk - Depositary Receipt (Common Stock) 14.84 -15.56 7.93 -11.69 0.8123 -0.1853
ISP / Intesa Sanpaolo S.p.A. 1.37 53.50 7.91 71.63 0.8107 0.2983
CPG N / Compass Group PLC 0.23 -4.51 7.82 -2.24 0.8008 -0.0877
ASML / ASML Holding N.V. 0.01 -27.81 7.81 -12.93 0.8002 -0.1966
BBVA / Banco Bilbao Vizcaya Argentaria, S.A. - Depositary Receipt (Common Stock) 0.50 -2.74 7.73 9.58 0.7920 0.0081
388 / Hong Kong Exchanges and Clearing Limited 0.14 -4.57 7.69 14.46 0.7883 0.0412
EXPGF / Experian plc 0.15 -4.51 7.69 6.15 0.7875 -0.0173
SMFNF / Sumitomo Mitsui Financial Group, Inc. 0.30 -34.06 7.68 -35.29 0.7868 -0.5321
RY / Royal Bank of Canada 0.06 -4.52 7.65 11.71 0.7840 0.0227
WSP / WSP Global Inc. 0.04 -4.51 7.61 14.78 0.7798 0.0428
SDZ / Sandoz Group AG 0.14 -4.51 7.58 24.60 0.7771 0.1007
RACE / Ferrari N.V. 0.02 -4.51 7.55 9.51 0.7731 0.0074
ASM / ASM International NV 0.01 41.66 7.54 98.97 0.7725 0.3514
RHM / Rheinmetall AG 0.00 -4.52 7.52 41.24 0.7704 0.1788
BHARTIARTL / Bharti Airtel Limited 0.32 7.51 0.7693 0.7693
MELI / MercadoLibre, Inc. 0.00 -4.52 7.50 27.91 0.7689 0.1169
IFC / Intact Financial Corporation 0.03 -17.09 7.41 -5.63 0.7597 -0.1135
BAM / Brookfield Asset Management Ltd. 0.13 -4.51 7.39 8.94 0.7568 0.0033
FLUT / Flutter Entertainment plc 0.03 -4.51 7.25 23.17 0.7425 0.0886
GOB / Compagnie de Saint-Gobain S.A. 0.06 -4.51 7.20 12.51 0.7373 0.0265
LIN / Linde plc 0.02 -4.51 7.18 -3.78 0.7360 -0.0937
HNR1 / Hannover Rück SE 0.02 -29.15 7.16 -25.19 0.7334 -0.3299
MH6 / Tokio Marine Holdings, Inc. 0.17 -29.75 7.13 -23.38 0.7309 -0.3037
SIKA / Sika AG 0.03 -4.51 7.13 6.42 0.7301 -0.0140
HEI / Heidelberg Materials AG 0.03 -4.51 7.06 30.17 0.7229 0.1204
RDEB / RELX PLC 0.13 -4.51 7.02 2.72 0.7190 -0.0402
DP9 / Diploma PLC 0.10 -18.35 6.99 9.42 0.7164 0.0063
KYCCF / Keyence Corporation 0.02 -4.42 6.95 -2.37 0.7120 -0.0790
KSP / Kingspan Group PLC 0.08 -4.51 6.90 0.54 0.7073 -0.0558
HLN / Haleon plc - Depositary Receipt (Common Stock) 1.34 -4.51 6.87 -2.83 0.7041 -0.0819
FI4000552500 / ORDINARY SHARES 0.64 6.87 0.7037 0.7037
AIR / Airbus SE 0.03 -4.51 6.74 13.23 0.6902 0.0290
ACO4 / Atlas Copco AB (publ) 0.42 -4.51 6.72 -3.42 0.6881 -0.0847
CB / Chubb Limited 0.02 -4.52 6.60 -8.40 0.6761 -0.1245
1299 / AIA Group Limited 0.74 -4.49 6.60 13.16 0.6758 0.0280
WCN / Waste Connections, Inc. 0.03 6.48 0.6637 0.6637
FP / TotalEnergies SE 0.10 -4.51 6.37 -9.04 0.6523 -0.1256
UNA / Unilever PLC 0.10 -13.24 6.19 -7.44 0.6347 -0.1115
EVD / CTS Eventim AG & Co. KGaA 0.05 -4.51 6.17 18.17 0.6324 0.0519
ACGL / Arch Capital Group Ltd. 0.07 31.03 6.13 24.06 0.6276 0.0788
IFNNY / Infineon Technologies AG - Depositary Receipt (Common Stock) 0.14 41.33 5.77 80.38 0.5915 0.2358
UCB / UCB SA 0.03 15.50 5.74 29.00 0.5880 0.0936
EBS / Erste Group Bank AG 0.06 -4.51 5.52 17.55 0.5655 0.0438
HYB / HOYA Corporation 0.05 -4.43 5.40 0.88 0.5529 -0.0416
ASI1 / ASICS Corporation 0.21 -4.51 5.35 15.07 0.5486 0.0314
2020 / ANTA Sports Products Limited 0.43 -4.52 5.19 4.55 0.5321 -0.0200
BY6 / BYD Company Limited 0.33 98.21 5.18 -38.92 0.5309 -0.4118
PME / Pro Medicus Limited 0.03 -4.51 5.16 41.56 0.5292 0.1237
BRZ0 / Beijer Ref AB (publ) 0.32 -4.51 5.01 7.15 0.5129 -0.0063
CP / Canadian Pacific Kansas City Limited 0.06 -4.52 4.95 7.79 0.5076 -0.0032
ENX / Euronext N.V. 0.03 -42.18 4.92 -31.92 0.5041 -0.2989
ENEL / Enel SpA 0.51 -58.82 4.85 -43.35 0.4971 -0.0601
CCEP / COCA COLA EUROPACIFIC COMPANY GUAR REGS 11/27 1.5 0.05 4.81 0.4930 0.4930
DEVL / DBS Group Holdings Ltd 0.14 -28.93 4.80 -26.90 0.4917 -0.2379
BKT / Bankinter, S.A. 0.37 4.77 0.4883 0.4883
2D7 / Beazley plc 0.37 26.76 4.73 35.09 0.4845 0.0954
NSIS N / Novozymes A/S 0.07 4.66 0.4777 0.4777
WTKWY / Wolters Kluwer N.V. - Depositary Receipt (Common Stock) 0.03 -4.51 4.63 2.55 0.4740 -0.0274
M&M / Mahindra & Mahindra Limited 0.12 -4.51 4.58 14.24 0.4693 0.0237
2454 / MediaTek Inc. 0.11 -1.83 4.58 -2.53 0.4691 -0.0530
TMTNF / Toromont Industries Ltd. 0.05 -4.51 4.54 9.65 0.4647 0.0050
A5G / AIB Group plc 0.54 -37.36 4.48 -20.20 0.4589 -0.1649
3064 / MonotaRO Co., Ltd. 0.20 -4.53 4.00 0.96 0.4095 -0.0304
G24 / Scout24 SE 0.03 -4.51 3.99 25.75 0.4084 0.0562
PGHN / Partners Group Holding AG 0.00 -4.48 3.95 -12.47 0.4043 -0.0966
VACN / VAT Group AG 0.01 3.91 0.4011 0.4011
BC / Brunello Cucinelli S.p.A. 0.03 -4.51 3.80 1.04 0.3897 -0.0286
BID / Bid Corporation Limited 0.14 6.03 3.76 16.72 0.3849 0.0273
XRO / Xero Limited 0.03 -4.51 3.68 15.62 0.3770 0.0233
6383 / Daifuku Co., Ltd. 0.14 -4.57 3.67 0.33 0.3758 -0.0305
ICP / Panamax New Energy AG 0.14 -23.35 3.67 -20.37 0.3757 -0.1360
539448 / InterGlobe Aviation Limited 0.05 -4.51 3.52 11.73 0.3603 0.0105
OTE1V / Metso Outotec Oyj 0.27 -4.51 3.43 19.11 0.3513 0.0314
IMCD / IMCD N.V. 0.03 -4.51 3.37 -3.61 0.3450 -0.0432
BHE / Bharat Electronics Ltd 0.68 -4.51 3.35 34.55 0.3436 0.0667
TNE / Technology One Limited 0.12 -4.51 3.31 46.53 0.3395 0.0882
QBEIF / QBE Insurance Group Limited 0.21 3.31 0.3388 0.3388
AC8 / Aristocrat Leisure Limited 0.08 -38.45 3.30 -34.73 0.3378 -0.2236
LISP / Chocoladefabriken Lindt & Sprüngli AG - Preferred Stock 0.00 -4.48 3.23 18.88 0.3310 0.0290
INE066F01020 / Hindustan Aeronautics Ltd. 0.06 3.20 0.3276 0.3276
SY1 / Symrise AG 0.03 -4.51 3.11 -3.30 0.3185 -0.0387
DISPF / Disco Corporation 0.01 36.36 3.11 97.71 0.3185 0.1437
VU / VusionGroup S.A. 0.01 -4.50 3.10 44.14 0.3179 0.0787
2308 / Delta Electronics, Inc. 0.22 -4.37 3.10 22.27 0.3172 0.0358
NEM / Nemetschek SE 0.02 -4.52 3.02 18.66 0.3095 0.0266
WEIGF / The Weir Group PLC 0.09 -4.51 2.94 8.05 0.3013 -0.0012
NURAF / Nomura Research Institute, Ltd. 0.07 -4.51 2.89 17.81 0.2963 0.0235
GALE / Galenica AG 0.03 -4.51 2.86 16.19 0.2935 0.0194
30T / TechnoPro Holdings, Inc. 0.10 -4.43 2.83 26.08 0.2904 0.0405
SQN / Swissquote Group Holding Ltd 0.00 -4.51 2.81 25.25 0.2877 0.0385
MSMKF / MatsukiyoCocokara & Co. 0.14 -4.51 2.79 25.79 0.2859 0.0393
WEGE3 / WEG S.A. 0.35 -4.51 2.77 -5.24 0.2837 -0.0410
N5G / Rakuten Bank, Ltd. 0.06 -4.49 2.74 0.88 0.2805 -0.0210
INDHOTEL / The Indian Hotels Company Limited 0.30 -4.51 2.69 -7.42 0.2761 -0.0473
MAXHEALT / Max Healthcare Institute Ltd 0.18 24.16 2.63 43.66 0.2694 0.0660
BESI / BE Semiconductor Industries N.V. 0.02 34.73 2.60 92.95 0.2666 0.1167
RNKGF / RENK Group AG 0.03 2.57 0.2630 0.2630
LTMC / Lottomatica Group S.p.A. 0.09 2.49 0.2552 0.2552
RO41 / Rotork plc 0.56 -4.51 2.48 3.54 0.2546 -0.0120
CPI / Capitec Bank Holdings Limited 0.01 -4.51 2.47 12.61 0.2535 0.0093
AZM / Azimut Holding S.p.A. 0.08 50.00 2.46 71.59 0.2525 0.0928
INE066A01021 / Eicher Motors Ltd 0.04 2.45 0.2515 0.2515
IDEXY / Industria de Diseño Textil, S.A. - Depositary Receipt (Common Stock) 0.05 -54.01 2.45 -51.93 0.2512 -0.3156
600660 / Fuyao Glass Industry Group Co., Ltd. 0.31 -4.51 2.44 -5.60 0.2504 -0.0373
6532 / Baycurrent, Inc. 0.05 -4.66 2.43 13.36 0.2487 0.0107
D8V / Credicorp Ltd. 0.01 -4.51 2.42 14.65 0.2478 0.0134
EMBR3 / Embraer S.A. 0.17 -4.51 2.37 17.49 0.2430 0.0186
1L30 / Lifco AB (publ) 0.06 -36.24 2.36 -27.29 0.2422 -0.1190
SDF / Steadfast Group Limited 0.59 -4.51 2.34 3.86 0.2399 -0.0106
PKIUF / Parkland Corporation 0.08 -4.51 2.28 7.90 0.2339 -0.0012
SE0015671995 / Hemnet Group AB 0.08 -4.51 2.27 -15.82 0.2323 -0.0671
XST / Sanwa Holdings Corporation 0.07 43.55 2.26 48.85 0.2314 0.0627
JPEVF / Japan Elevator Service Holdings Co.,Ltd. 0.08 -4.41 2.25 50.00 0.2306 0.0638
INE670K01029 / Macrotech Developers Ltd 0.14 54.27 2.25 78.41 0.2304 0.0903
DIE / Dierig Holding AG 0.01 -4.51 2.23 19.05 0.2287 0.0204
SFZN / Siegfried Holding AG 0.02 2.23 0.2284 0.2284
1N8 / Adyen N.V. 0.00 -4.47 2.20 14.38 0.2250 0.0117
ZOMATO / Eternal Limited 0.70 -4.51 2.17 25.41 0.2221 0.0300
SAR / ZOZO, Inc. 0.19 -2.94 2.07 9.59 0.2119 0.0021
2395 / Advantech Co., Ltd. 0.17 -4.55 1.96 -2.78 0.2004 -0.0232
ASR / Grupo Aeroportuario del Sureste, S. A. B. de C. V. - Depositary Receipt (Common Stock) 0.01 -4.52 1.92 11.24 0.1968 0.0048
I1M / Indutrade AB (publ) 0.07 -31.99 1.88 -33.01 0.1930 -0.1195
1LNB / Spirax Group plc 0.02 -4.51 1.87 -3.17 0.1912 -0.0230
SCT / SSE plc 0.08 -4.51 1.86 9.82 0.1903 0.0023
SRAD / Sportradar Group AG 0.06 -4.51 1.81 23.97 0.1856 0.0233
AZZ2 / Addtech AB (publ.) 0.05 -4.51 1.78 10.97 0.1825 0.0041
FPH / Fisher & Paykel Healthcare Corporation Limited 0.08 -4.51 1.78 9.97 0.1820 0.0024
M1Z / Nu Holdings Ltd. 0.13 -4.51 1.75 27.96 0.1792 0.0273
BARC / Barclays PLC 0.37 -51.91 1.72 -40.81 0.1760 -0.1464
AG1 / AUTO1 Group SE 0.05 -4.51 1.72 38.36 0.1760 0.0380
1590 / Airtac International Group 0.06 -4.98 1.71 11.58 0.1748 0.0048
IPN / Ipsen S.A. 0.01 -4.52 1.70 -1.28 0.1744 -0.0172
3529 / eMemory Technology Inc. 0.02 -4.55 1.70 9.70 0.1738 0.0019
IIJIF / Internet Initiative Japan Inc. 0.08 -4.56 1.65 8.39 0.1695 -0.0002
KWI / Kurita Water Industries Ltd. 0.04 -4.66 1.62 22.02 0.1658 0.0184
FTK / flatexDEGIRO AG 0.06 2.29 1.61 25.00 0.1650 0.0218
HDFCAMC / HDFC Asset Management Company Limited 0.03 -4.51 1.57 23.74 0.1608 0.0199
OMAB / Grupo Aeroportuario del Centro Norte SAB de CV 0.12 1.53 0.1571 0.1571
5B8 / ABC-Mart,Inc. 0.07 1.52 0.1557 0.1557
N1C / Clicks Group Limited 0.07 -4.51 1.52 8.05 0.1555 -0.0006
CAMS / Computer Age Management Services Limited 0.03 1.52 0.1554 0.1554
APOLLOHOSP / Apollo Hospitals Enterprise Limited 0.02 -4.51 1.49 4.34 0.1530 -0.0060
ALDAR / Aldar Properties PJSC 0.61 -4.51 1.48 1.58 0.1516 -0.0103
XGJ / Gjensidige Forsikring ASA 0.06 87.75 1.46 228.83 0.1497 0.1043
AC / Arca Continental, S.A.B. de C.V. 0.13 1.36 0.1391 0.1391
SHAOF / SHIMAMURA Co., Ltd. 0.02 1.34 0.1375 0.1375
VALMT / Valmet Oyj 0.04 -4.52 1.33 8.95 0.1360 0.0006
6409 / Voltronic Power Technology Corp. 0.03 -3.23 1.29 -10.77 0.1326 -0.0285
7W71 / Sweco AB (publ) 0.07 -31.22 1.23 -11.03 0.1265 -0.0227
MMYT / MakeMyTrip Limited 0.01 -4.52 1.22 -4.52 0.1255 -0.0170
BYDGF / Boyd Group Services Inc. 0.01 -4.50 1.18 4.34 0.1209 -0.0048
1RY / LPP SA 0.00 -4.81 1.13 -15.07 0.1155 -0.0321
7HL / Hill & Smith PLC 0.05 -4.51 1.11 3.46 0.1135 -0.0055
QY6 / QinetiQ Group plc 0.14 -4.51 1.00 34.82 0.1024 0.0200
A267260 / HD Hyundai Electric Co., Ltd. 0.00 -100.00 0.00 -100.00 -0.1494
HAVELLS / Havells India Limited 0.00 -100.00 0.00 -100.00 -0.1632
TEAM / Atlassian Corporation 0.00 -100.00 0.00 -100.00 -0.3499
6669 / Wiwynn Corporation 0.00 -100.00 0.00 -100.00 -0.1688