EXHIBIT 99.1 AssetMark Reports 108.9BPlatformAssetsforFourthQuarter2023CONCORD,Calif.,February21,2024,(GLOBENEWSWIRE)—AssetMarkFinancialHoldings,Inc.(NYSE:AMK)todayannouncedfinancialresultsforthequarterendedDecember31,2023.FourthQuarter2023FinancialandOperationalHighlights•Netincomeforthequarterwas34.6 million, or 0.47pershare.•Adjustednetincomeforthequarterwas44.0 million, or 0.59pershare,ontotalrevenueof158.2 million. • Adjusted EBITDA ...