diff --git a/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/options.svelte.test.ts b/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/options.svelte.test.ts
index 569eb0b4a2..d8a669549a 100644
--- a/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/options.svelte.test.ts
+++ b/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/options.svelte.test.ts
@@ -2,9 +2,38 @@ import { describe, expect, it } from 'vitest';
 
 import type { EventSummaryModel, StackSummaryModel, SummaryTemplateKeys } from '../summary';
 
-import { defaultEventColumnVisibility, defaultStackColumnVisibility, getColumns } from './options.svelte';
+import { defaultEventColumnVisibility, defaultStackColumnVisibility, getColumns, getStackSortMode } from './options.svelte';
 
 describe('event table columns', () => {
+    it('accepts only supported stack sort modes', () => {
+        expect(getStackSortMode('stack_frequent')).toBe('stack_frequent');
+        expect(getStackSortMode('stack_recent')).toBe('stack_recent');
+        expect(getStackSortMode('-events')).toBe('stack_frequent');
+        expect(getStackSortMode('-last')).toBe('stack_recent');
+        expect(getStackSortMode('stack_new')).toBeUndefined();
+        expect(getStackSortMode('-last_occurrence')).toBeUndefined();
+        expect(getStackSortMode(undefined)).toBeUndefined();
+    });
+
+    it('uses dedicated stack-mode controls instead of API sort parameters', () => {
+        const result = getColumns<StackSummaryModel<SummaryTemplateKeys>>('stack_frequent');
+        const columnsById = Object.fromEntries(result.map((column) => [column.id, column]));
+
+        expect(columnsById.events?.enableSorting).toBe(false);
+        expect(columnsById.first?.enableSorting).toBe(false);
+        expect(columnsById.last?.enableSorting).toBe(false);
+        expect(columnsById.events?.header).toBeTypeOf('function');
+        expect(columnsById.first?.header).toBe('First');
+        expect(columnsById.last?.header).toBeTypeOf('function');
+    });
+
+    it('keeps summary message column unsortable', () => {
+        const result = getColumns<EventSummaryModel<SummaryTemplateKeys>>('summary');
+        const columnsById = Object.fromEntries(result.map((column) => [column.id, column]));
+
+        expect(columnsById.message?.enableSorting).toBe(false);
+    });
+
     it('offers project and tags as hidden optional columns', () => {
         const columns = getColumns<EventSummaryModel<SummaryTemplateKeys>>();
         const columnIds = columns.map((column) => column.id);
diff --git a/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/options.svelte.ts b/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/options.svelte.ts
index 93f628f242..2861593712 100644
--- a/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/options.svelte.ts
+++ b/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/options.svelte.ts
@@ -13,6 +13,7 @@ import LogLevel from '../log-level.svelte';
 import Summary from '../summary/summary.svelte';
 import EventTagsSummaryCell from './event-tags-summary-cell.svelte';
 import EventsUserIdentitySummaryCell from './events-user-identity-summary-cell.svelte';
+import StackSortHeader from './stack-sort-header.svelte';
 import StackStatusCell from './stack-status-cell.svelte';
 import StackUsersSummaryCell from './stack-users-summary-cell.svelte';
 
@@ -33,9 +34,15 @@ export const defaultStackColumnVisibility: ColumnVisibilityState = {
     tags: false
 };
 
+export type StackSortMode = Extract<GetEventsMode, 'stack_frequent' | 'stack_recent'>;
+
 export function getColumns<TSummaryModel extends SummaryModel<SummaryTemplateKeys>>(
     mode: GetEventsMode = 'summary',
-    options?: { onTagClick?: (tag: string) => Promise<void> | void; showType?: boolean }
+    options?: {
+        onStackSort?: (mode: StackSortMode) => void;
+        onTagClick?: (tag: string) => Promise<void> | void;
+        showType?: boolean;
+    }
 ): ColumnDef<StockFeatures, TSummaryModel, unknown>[] {
     const showType = options?.showType ?? true;
     const columns: ColumnDef<StockFeatures, TSummaryModel, unknown>[] = [
@@ -302,7 +309,12 @@ export function getColumns<TSummaryModel extends SummaryModel<SummaryTemplateKey
                         value: prop.getValue<number>()
                     }),
                 enableSorting: false,
-                header: 'Events',
+                header: () =>
+                    renderComponent(StackSortHeader, {
+                        active: mode === 'stack_frequent',
+                        label: 'Events',
+                        onclick: () => options?.onStackSort?.('stack_frequent')
+                    }),
                 id: 'events',
                 maxSize: 320,
                 meta: {
@@ -334,7 +346,12 @@ export function getColumns<TSummaryModel extends SummaryModel<SummaryTemplateKey
                         value: prop.getValue<string>()
                     }),
                 enableSorting: false,
-                header: 'Last',
+                header: () =>
+                    renderComponent(StackSortHeader, {
+                        active: mode === 'stack_recent',
+                        label: 'Last',
+                        onclick: () => options?.onStackSort?.('stack_recent')
+                    }),
                 id: 'last',
                 maxSize: 480,
                 meta: {
@@ -349,6 +366,18 @@ export function getColumns<TSummaryModel extends SummaryModel<SummaryTemplateKey
     return columns;
 }
 
+export function getStackSortMode(value: null | string | undefined): StackSortMode | undefined {
+    if (value === 'stack_frequent' || value === '-events') {
+        return 'stack_frequent';
+    }
+
+    if (value === 'stack_recent' || value === '-last') {
+        return 'stack_recent';
+    }
+
+    return undefined;
+}
+
 function formatTextColumn(value: unknown): string {
     return typeof value === 'string' && value.length > 0 ? value : '—';
 }
diff --git a/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/stack-sort-header.svelte b/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/stack-sort-header.svelte
new file mode 100644
index 0000000000..0c5413885b
--- /dev/null
+++ b/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/stack-sort-header.svelte
@@ -0,0 +1,19 @@
+<script lang="ts">
+    import { Button } from '$comp/ui/button';
+    import ArrowDown from '@lucide/svelte/icons/arrow-down';
+
+    interface Props {
+        active: boolean;
+        label: string;
+        onclick: () => void;
+    }
+
+    let { active, label, onclick }: Props = $props();
+</script>
+
+<Button aria-label={`Sort by ${label} descending`} aria-pressed={active} class="h-8" {onclick} variant="ghost">
+    {label}
+    {#if active}
+        <ArrowDown aria-hidden="true" />
+    {/if}
+</Button>
diff --git a/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/stack-sort-header.svelte.test.ts b/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/stack-sort-header.svelte.test.ts
new file mode 100644
index 0000000000..d86bd454e7
--- /dev/null
+++ b/src/Exceptionless.Web/ClientApp/src/lib/features/events/components/table/stack-sort-header.svelte.test.ts
@@ -0,0 +1,24 @@
+import { fireEvent, render, screen } from '@testing-library/svelte';
+import { describe, expect, it, vi } from 'vitest';
+
+import StackSortHeader from './stack-sort-header.svelte';
+
+describe('StackSortHeader', () => {
+    it('exposes the active descending sort and handles selection', async () => {
+        const onclick = vi.fn();
+        render(StackSortHeader, { active: true, label: 'Events', onclick });
+
+        const button = screen.getByRole('button', { name: 'Sort by Events descending' });
+        expect(button.getAttribute('aria-pressed')).toBe('true');
+
+        await fireEvent.click(button);
+
+        expect(onclick).toHaveBeenCalledOnce();
+    });
+
+    it('does not mark inactive sort modes as selected', () => {
+        render(StackSortHeader, { active: false, label: 'Last', onclick: vi.fn() });
+
+        expect(screen.getByRole('button', { name: 'Sort by Last descending' }).getAttribute('aria-pressed')).toBe('false');
+    });
+});
diff --git a/src/Exceptionless.Web/ClientApp/src/routes/(app)/stack/+page.svelte b/src/Exceptionless.Web/ClientApp/src/routes/(app)/stack/+page.svelte
index 00585957d1..4785b7a8d7 100644
--- a/src/Exceptionless.Web/ClientApp/src/routes/(app)/stack/+page.svelte
+++ b/src/Exceptionless.Web/ClientApp/src/routes/(app)/stack/+page.svelte
@@ -44,7 +44,7 @@
     } from '$features/events/components/filters/helpers.svelte';
     import OrganizationDefaultsFacetedFilterBuilder from '$features/events/components/filters/organization-defaults-faceted-filter-builder.svelte';
     import EventsDataTable from '$features/events/components/table/events-data-table.svelte';
-    import { defaultStackColumnVisibility, getColumns } from '$features/events/components/table/options.svelte';
+    import { defaultStackColumnVisibility, getColumns, getStackSortMode, type StackSortMode } from '$features/events/components/table/options.svelte';
     import { filterUsesPremiumFeatures } from '$features/events/premium-filter';
     import { organization } from '$features/organizations/context.svelte';
     import { premiumPage } from '$features/organizations/premium-page.svelte';
@@ -115,6 +115,7 @@
         project: undefined as string | undefined,
         reference: undefined as string | undefined,
         session: undefined as string | undefined,
+        sort: undefined as string | undefined,
         stack: undefined as string | undefined,
         status: undefined as string | undefined,
         tag: undefined as string | undefined,
@@ -215,6 +216,24 @@
             .filter((item) => item);
     }
 
+    function getPersistedStackSort(): string | undefined {
+        if (queryParams.sort != null) {
+            return getStackSortMode(queryParams.sort) ?? 'stack_frequent';
+        }
+
+        return savedViewsState.activeSavedView?.sort ?? undefined;
+    }
+
+    function getEffectiveStackSort(): StackSortMode {
+        return getStackSortMode(getPersistedStackSort()) ?? 'stack_frequent';
+    }
+
+    function setStackSort(mode: StackSortMode): void {
+        const savedViewSort = getStackSortMode(savedViewsState.activeSavedView?.sort) ?? 'stack_frequent';
+        queryParams.sort = mode === savedViewSort ? null : mode;
+        table.setPageIndex(0);
+    }
+
     updateFilterCache(filterCacheKey(DEFAULT_FILTER), DEFAULT_FILTERS);
     const queryParams = createQueryParameters({
         defaults: DEFAULT_PARAMS,
@@ -229,6 +248,7 @@
             project: 'string',
             reference: 'string',
             session: 'string',
+            sort: 'string',
             stack: 'string',
             status: 'string',
             tag: 'string',
@@ -255,6 +275,7 @@
         getFilterDefinitions: () => serializeFilters(filters ?? []),
         getShowChart: () => showChart,
         getShowStats: () => showStats,
+        getSort: getPersistedStackSort,
         getTime: getQueryTime,
         queryParams,
         setColumnOrder: (v) => table.setColumnOrder(v),
@@ -626,7 +647,9 @@
         set limit(value) {
             setPageSize(value);
         },
-        mode: 'stack_frequent',
+        get mode() {
+            return getEffectiveStackSort();
+        },
         offset: DEFAULT_OFFSET,
         get page() {
             return queryParams.page ?? undefined;
@@ -667,6 +690,7 @@
             columnPersistenceKey: 'stacks-column-visibility',
             get columns() {
                 return getColumns<EventSummaryModel<SummaryTemplateKeys>>(eventsQueryParameters.mode, {
+                    onStackSort: setStackSort,
                     onTagClick: (tag) => onFilterChanged(new TagFilter([tag])),
                     showType: !hasSingleTypeFilter(eventsQueryParameters.filter)
                 });
@@ -864,6 +888,7 @@
                     {showStats}
                     setShowChart={(v) => (showChart = v)}
                     setShowStats={(v) => (showStats = v)}
+                    sort={getStackSortMode(getPersistedStackSort())}
                     {table}
                     time={getQueryTime() ?? undefined}
                     view={VIEW}