William Blair Funds. Holdings as of Jun 30, 2026, from Form N-PORT.
Share of net assets at the report date, for the whole fund across all share classes.
| Holding | Weight | Value | Shares or units |
|---|---|---|---|
| Diebold Nixdorf IncDBD | 2.29% | $28.00M | 329,379 |
| Fixed Income Clearing Corp.RA | 1.99% | $24.37M | 24,374,449 |
| Krystal Biotech IncKRYS | 1.94% | $23.76M | 63,930 |
| Veracyte IncVCYT | 1.89% | $23.13M | 393,833 |
| Cognex CorpCGNX | 1.85% | $22.65M | 312,810 |
| Alignment Healthcare IncALHC | 1.84% | $22.59M | 948,648 |
| Flowserve CorpFLS | 1.73% | $21.24M | 286,390 |
| Establishment Labs Holdings Inc | 1.73% | $21.19M | 246,960 |
| Regal Rexnord CorpRRX | 1.71% | $20.88M | 87,680 |
| Vericel CorpVCEL | 1.70% | $20.88M | 469,354 |
| Primo Brands CorpPRMB | 1.65% | $20.19M | 826,166 |
| Old National Bancorp/INONB | 1.64% | $20.13M | 777,300 |
| BorgWarner IncBWA | 1.64% | $20.12M | 303,030 |
| OSI Systems IncOSIS | 1.64% | $20.12M | 91,980 |
| Twist Bioscience CorpTWST | 1.61% | $19.77M | 192,214 |
| National Bank Holdings CorpNBHC | 1.50% | $18.39M | 413,930 |
| Merit Medical Systems IncMMSI | 1.50% | $18.39M | 265,190 |
| Mirum Pharmaceuticals IncMIRM | 1.50% | $18.35M | 156,763 |
| Balchem CorpBCPC | 1.48% | $18.08M | 106,990 |
| Grand Canyon Education IncLOPE | 1.42% | $17.35M | 121,211 |
| Halozyme Therapeutics IncHALO | 1.39% | $17.05M | 217,890 |
| Knight-Swift Transportation Holdings IncKNX | 1.39% | $16.99M | 218,220 |
| Esab CorpESAB | 1.38% | $16.92M | 171,570 |
| Baldwin Insurance Group Inc/TheBWIN | 1.33% | $16.28M | 612,611 |
| Novanta IncNOVT | 1.31% | $16.02M | 98,730 |
| FirstService CorpFSV | 1.30% | $15.91M | 111,977 |
| Mercury Systems IncMRCY | 1.29% | $15.83M | 129,368 |
| Terex CorpTEX | 1.28% | $15.70M | 216,910 |
| Rush Street Interactive IncRSI | 1.27% | $15.59M | 524,080 |
| Quaker Chemical CorpKWR | 1.27% | $15.51M | 97,657 |
| Graham CorpGHM | 1.26% | $15.38M | 124,280 |
| Littelfuse IncLFUS | 1.25% | $15.30M | 33,600 |
| Garrett Motion IncGTX | 1.23% | $15.05M | 415,379 |
| Helios Technologies IncHLIO | 1.22% | $14.91M | 167,010 |
| HealthEquity IncHQY | 1.21% | $14.79M | 163,750 |
| Weatherford International PLC | 1.20% | $14.75M | 181,030 |
| Power Integrations IncPOWI | 1.20% | $14.75M | 176,045 |
| PTC Therapeutics IncPTCT | 1.20% | $14.74M | 180,710 |
| Impinj IncPI | 1.18% | $14.48M | 101,120 |
| Onto Innovation IncONTO | 1.18% | $14.44M | 38,150 |
| Cytokinetics IncCYTK | 1.18% | $14.42M | 169,290 |
| Agilysys IncAGYS | 1.18% | $14.42M | 137,980 |
| JBT Marel CorpJBTM | 1.14% | $13.95M | 96,230 |
| Madrigal Pharmaceuticals IncMDGL | 1.13% | $13.84M | 25,768 |
| Bentley Systems IncBSY | 1.12% | $13.67M | 457,310 |
| Q2 Holdings IncQTWO | 1.11% | $13.61M | 283,004 |
| Marex Group PLC | 1.07% | $13.16M | 215,870 |
| Revolve Group IncRVLV | 1.03% | $12.63M | 551,807 |
| BWX Technologies IncBWXT | 1.02% | $12.48M | 64,094 |
| Appfolio IncAPPF | 0.99% | $12.19M | 76,000 |