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Investment Securities (Tables) | 3 Months Ended
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Mar. 31, 2025
Investments, Debt and Equity Securities [Abstract] |
Marketable Securities | The disclosures below include details of Artisan’s investments, excluding money market funds and consolidated investment products. Investments held by consolidated investment products are described in Note 6, “Variable Interest Entities and Consolidated Investment Products.”
| As of March 31, 2025 |  | As of December 31, 2024
Seed investments in equity securities | $ | 67,938 |  |  | $ | 66,349 |
Seed investments in equity securities accounted for under the equity method | 8,042 |  |  | 7,964 |
Compensation plan investments in equity securities | 155,185 |  |  | 127,430 |
Compensation plan investments in equity securities accounted for under the equity method | 16,319 |  |  | 7,049 |
Total investment securities | $ | 247,484 |  |  | $ | 208,792 |
Unrealized Gain (Loss) on Investments | Unrealized gain (loss) related to investment securities held on the dates indicated below were as follows:
| For the Three Months Ended March 31, |  |
| 2025 |  | 2024 |  |  |  |
Unrealized gain (loss) on investment securities held at the end of the period | $ | 2,748 |  |  | $ | 5,928 |  |  |  |  |

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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