Certification Pursuant to Rule 30a-2(b) under the 1940 Act and Section 906 of the Sarbanes-Oxley Act
I, Stephen T. Weber, President of Driehaus Mutual Funds (the “Registrant”), certify that:
| 1. | The Form N-CSR of the Registrant (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and |
| 2. | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. |
Date: | August 30, 2024 |
| /s/ Stephen T. Weber |
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| Stephen T. Weber, President |
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| (principal executive officer) |
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I, Robert M. Kurinsky, Vice President and Treasurer of Driehaus Mutual Funds (the “Registrant”), certify that:
| 1. | The Form N-CSR of the Registrant (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and |
| 2. | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. |
Date: | August 30, 2024 |
| /s/ Robert M. Kurinsky |
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| Robert M. Kurinsky, Vice President and Treasurer |
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| (principal financial officer) |
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