diff --git a/public/app/features/alerting/unified/RuleViewer.tsx b/public/app/features/alerting/unified/RuleViewer.tsx
index 647795709f7..6d46a2932cc 100644
--- a/public/app/features/alerting/unified/RuleViewer.tsx
+++ b/public/app/features/alerting/unified/RuleViewer.tsx
@@ -175,7 +175,7 @@ export function RuleViewer({ match }: RuleViewerProps) {
           </div>
         </div>
         <div>
-          <RuleDetailsMatchingInstances promRule={rule.promRule} />
+          <RuleDetailsMatchingInstances rule={rule} />
         </div>
       </RuleViewerLayoutContent>
       {!isFederatedRule && data && Object.keys(data).length > 0 && (
diff --git a/public/app/features/alerting/unified/components/rules/AlertInstanceStateFilter.tsx b/public/app/features/alerting/unified/components/rules/AlertInstanceStateFilter.tsx
index 4cbc939d434..ada64a58b58 100644
--- a/public/app/features/alerting/unified/components/rules/AlertInstanceStateFilter.tsx
+++ b/public/app/features/alerting/unified/components/rules/AlertInstanceStateFilter.tsx
@@ -1,22 +1,34 @@
-import React from 'react';
+import { capitalize } from 'lodash';
+import React, { useMemo } from 'react';
 
-import { RadioButtonGroup, Label } from '@grafana/ui';
-import { GrafanaAlertState } from 'app/types/unified-alerting-dto';
+import { Label, RadioButtonGroup } from '@grafana/ui';
+import { GrafanaAlertState, PromAlertingRuleState } from 'app/types/unified-alerting-dto';
+
+export type InstanceStateFilter = GrafanaAlertState | PromAlertingRuleState.Pending | PromAlertingRuleState.Firing;
 
 interface Props {
   className?: string;
-  stateFilter?: GrafanaAlertState;
-  onStateFilterChange: (value: GrafanaAlertState | undefined) => void;
+  filterType: 'grafana' | 'prometheus';
+  stateFilter?: InstanceStateFilter;
+  onStateFilterChange: (value?: InstanceStateFilter) => void;
 }
 
-export const AlertInstanceStateFilter = ({ className, onStateFilterChange, stateFilter }: Props) => {
-  const stateOptions = Object.values(GrafanaAlertState).map((value) => ({
-    label: value,
-    value,
-  }));
+const grafanaOptions = Object.values(GrafanaAlertState).map((value) => ({
+  label: value,
+  value,
+}));
+
+const promOptionValues = [PromAlertingRuleState.Firing, PromAlertingRuleState.Pending] as const;
+const promOptions = promOptionValues.map((state) => ({
+  label: capitalize(state),
+  value: state,
+}));
+
+export const AlertInstanceStateFilter = ({ className, onStateFilterChange, stateFilter, filterType }: Props) => {
+  const stateOptions = useMemo(() => (filterType === 'grafana' ? grafanaOptions : promOptions), [filterType]);
 
   return (
-    <div className={className}>
+    <div className={className} data-testid="alert-instance-state-filter">
       <Label>State</Label>
       <RadioButtonGroup
         options={stateOptions}
diff --git a/public/app/features/alerting/unified/components/rules/RuleDetails.tsx b/public/app/features/alerting/unified/components/rules/RuleDetails.tsx
index 74d378d52ca..3d1ebf2023d 100644
--- a/public/app/features/alerting/unified/components/rules/RuleDetails.tsx
+++ b/public/app/features/alerting/unified/components/rules/RuleDetails.tsx
@@ -21,7 +21,6 @@ interface Props {
 export const RuleDetails: FC<Props> = ({ rule }) => {
   const styles = useStyles2(getStyles);
   const {
-    promRule,
     namespace: { rulesSource },
   } = rule;
 
@@ -44,7 +43,7 @@ export const RuleDetails: FC<Props> = ({ rule }) => {
           <RuleDetailsDataSources rulesSource={rulesSource} rule={rule} />
         </div>
       </div>
-      <RuleDetailsMatchingInstances promRule={promRule} />
+      <RuleDetailsMatchingInstances rule={rule} />
     </div>
   );
 };
@@ -53,6 +52,7 @@ export const getStyles = (theme: GrafanaTheme2) => ({
   wrapper: css`
     display: flex;
     flex-direction: row;
+
     ${theme.breakpoints.down('md')} {
       flex-direction: column;
     }
diff --git a/public/app/features/alerting/unified/components/rules/RuleDetailsMatchingInstances.test.tsx b/public/app/features/alerting/unified/components/rules/RuleDetailsMatchingInstances.test.tsx
new file mode 100644
index 00000000000..5d608dd51dd
--- /dev/null
+++ b/public/app/features/alerting/unified/components/rules/RuleDetailsMatchingInstances.test.tsx
@@ -0,0 +1,128 @@
+import { render } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import React from 'react';
+import { byLabelText, byRole, byTestId } from 'testing-library-selector';
+
+import { CombinedRuleNamespace } from '../../../../../types/unified-alerting';
+import { GrafanaAlertState, PromAlertingRuleState } from '../../../../../types/unified-alerting-dto';
+import { mockCombinedRule, mockDataSource, mockPromAlert, mockPromAlertingRule } from '../../mocks';
+import { alertStateToReadable } from '../../utils/rules';
+
+import { RuleDetailsMatchingInstances } from './RuleDetailsMatchingInstances';
+
+const ui = {
+  stateFilter: byTestId('alert-instance-state-filter'),
+  stateButton: byRole('radio'),
+  grafanaStateButton: {
+    normal: byLabelText('Normal'),
+    alerting: byLabelText('Alerting'),
+    pending: byLabelText('Pending'),
+    noData: byLabelText('NoData'),
+    error: byLabelText('Error'),
+  },
+  cloudStateButton: {
+    firing: byLabelText('Firing'),
+    pending: byLabelText('Pending'),
+  },
+  instanceRow: byTestId('row'),
+};
+
+describe('RuleDetailsMatchingInstances', () => {
+  describe('Filtering', () => {
+    it('For Grafana Managed rules instances filter should contain five states', () => {
+      const rule = mockCombinedRule();
+
+      render(<RuleDetailsMatchingInstances rule={rule} />);
+
+      const stateFilter = ui.stateFilter.get();
+      expect(stateFilter).toBeInTheDocument();
+
+      const stateButtons = ui.stateButton.getAll(stateFilter);
+
+      expect(stateButtons).toHaveLength(5);
+
+      expect(ui.grafanaStateButton.normal.get(stateFilter)).toBeInTheDocument();
+      expect(ui.grafanaStateButton.alerting.get(stateFilter)).toBeInTheDocument();
+      expect(ui.grafanaStateButton.pending.get(stateFilter)).toBeInTheDocument();
+      expect(ui.grafanaStateButton.noData.get(stateFilter)).toBeInTheDocument();
+      expect(ui.grafanaStateButton.error.get(stateFilter)).toBeInTheDocument();
+    });
+
+    it.each(Object.values(GrafanaAlertState))('Should filter grafana rules by %s state', async (state) => {
+      const rule = mockCombinedRule({
+        promRule: mockPromAlertingRule({
+          alerts: [
+            mockPromAlert({ state: GrafanaAlertState.Normal }),
+            mockPromAlert({ state: GrafanaAlertState.Alerting }),
+            mockPromAlert({ state: GrafanaAlertState.Pending }),
+            mockPromAlert({ state: GrafanaAlertState.NoData }),
+            mockPromAlert({ state: GrafanaAlertState.Error }),
+          ],
+        }),
+      });
+
+      const buttons = {
+        [GrafanaAlertState.Normal]: ui.grafanaStateButton.normal,
+        [GrafanaAlertState.Alerting]: ui.grafanaStateButton.alerting,
+        [GrafanaAlertState.Pending]: ui.grafanaStateButton.pending,
+        [GrafanaAlertState.NoData]: ui.grafanaStateButton.noData,
+        [GrafanaAlertState.Error]: ui.grafanaStateButton.error,
+      };
+
+      render(<RuleDetailsMatchingInstances rule={rule} />);
+
+      await userEvent.click(buttons[state].get());
+
+      expect(ui.instanceRow.getAll()).toHaveLength(1);
+      expect(ui.instanceRow.get()).toHaveTextContent(alertStateToReadable(state));
+    });
+
+    it('For Cloud rules instances filter should contain two states', () => {
+      const rule = mockCombinedRule({
+        namespace: mockPromNamespace(),
+      });
+
+      render(<RuleDetailsMatchingInstances rule={rule} />);
+
+      const stateFilter = ui.stateFilter.get();
+      expect(stateFilter).toBeInTheDocument();
+
+      const stateButtons = ui.stateButton.getAll(stateFilter);
+
+      expect(stateButtons).toHaveLength(2);
+
+      expect(ui.cloudStateButton.firing.get(stateFilter)).toBeInTheDocument();
+      expect(ui.cloudStateButton.pending.get(stateFilter)).toBeInTheDocument();
+    });
+
+    it.each([PromAlertingRuleState.Pending, PromAlertingRuleState.Firing] as const)(
+      'Should filter cloud rules by %s state',
+      async (state) => {
+        const rule = mockCombinedRule({
+          namespace: mockPromNamespace(),
+          promRule: mockPromAlertingRule({
+            alerts: [
+              mockPromAlert({ state: PromAlertingRuleState.Firing }),
+              mockPromAlert({ state: PromAlertingRuleState.Pending }),
+            ],
+          }),
+        });
+
+        render(<RuleDetailsMatchingInstances rule={rule} />);
+
+        await userEvent.click(ui.cloudStateButton[state].get());
+
+        expect(ui.instanceRow.getAll()).toHaveLength(1);
+        expect(ui.instanceRow.get()).toHaveTextContent(alertStateToReadable(state));
+      }
+    );
+  });
+});
+
+function mockPromNamespace(): CombinedRuleNamespace {
+  return {
+    rulesSource: mockDataSource(),
+    groups: [{ name: 'Prom rules group', rules: [] }],
+    name: 'Prometheus-test',
+  };
+}
diff --git a/public/app/features/alerting/unified/components/rules/RuleDetailsMatchingInstances.tsx b/public/app/features/alerting/unified/components/rules/RuleDetailsMatchingInstances.tsx
index aa095a1d0e9..7cae0e0b74b 100644
--- a/public/app/features/alerting/unified/components/rules/RuleDetailsMatchingInstances.tsx
+++ b/public/app/features/alerting/unified/components/rules/RuleDetailsMatchingInstances.tsx
@@ -4,27 +4,33 @@ import React, { useMemo, useState } from 'react';
 import { GrafanaTheme } from '@grafana/data';
 import { useStyles } from '@grafana/ui';
 import { MatcherFilter } from 'app/features/alerting/unified/components/alert-groups/MatcherFilter';
-import { AlertInstanceStateFilter } from 'app/features/alerting/unified/components/rules/AlertInstanceStateFilter';
+import {
+  AlertInstanceStateFilter,
+  InstanceStateFilter,
+} from 'app/features/alerting/unified/components/rules/AlertInstanceStateFilter';
 import { labelsMatchMatchers, parseMatchers } from 'app/features/alerting/unified/utils/alertmanager';
 import { sortAlerts } from 'app/features/alerting/unified/utils/misc';
 import { SortOrder } from 'app/plugins/panel/alertlist/types';
-import { Alert, Rule } from 'app/types/unified-alerting';
-import { GrafanaAlertState, mapStateWithReasonToBaseState } from 'app/types/unified-alerting-dto';
+import { Alert, CombinedRule } from 'app/types/unified-alerting';
+import { mapStateWithReasonToBaseState } from 'app/types/unified-alerting-dto';
 
+import { GRAFANA_RULES_SOURCE_NAME, isGrafanaRulesSource } from '../../utils/datasource';
 import { isAlertingRule } from '../../utils/rules';
 import { DetailsField } from '../DetailsField';
 
 import { AlertInstancesTable } from './AlertInstancesTable';
 
 type Props = {
-  promRule?: Rule;
+  rule: CombinedRule;
 };
 
 export function RuleDetailsMatchingInstances(props: Props): JSX.Element | null {
-  const { promRule } = props;
+  const {
+    rule: { promRule, namespace },
+  } = props;
 
   const [queryString, setQueryString] = useState<string>();
-  const [alertState, setAlertState] = useState<GrafanaAlertState>();
+  const [alertState, setAlertState] = useState<InstanceStateFilter>();
 
   // This key is used to force a rerender on the inputs when the filters are cleared
   const [filterKey] = useState<number>(Math.floor(Math.random() * 100));
@@ -32,6 +38,8 @@ export function RuleDetailsMatchingInstances(props: Props): JSX.Element | null {
 
   const styles = useStyles(getStyles);
 
+  const stateFilterType = isGrafanaRulesSource(namespace.rulesSource) ? GRAFANA_RULES_SOURCE_NAME : 'prometheus';
+
   const alerts = useMemo(
     (): Alert[] =>
       isAlertingRule(promRule) && promRule.alerts?.length
@@ -56,6 +64,7 @@ export function RuleDetailsMatchingInstances(props: Props): JSX.Element | null {
           />
           <AlertInstanceStateFilter
             className={styles.rowChild}
+            filterType={stateFilterType}
             stateFilter={alertState}
             onStateFilterChange={setAlertState}
           />
@@ -69,7 +78,7 @@ export function RuleDetailsMatchingInstances(props: Props): JSX.Element | null {
 
 function filterAlerts(
   alertInstanceLabel: string | undefined,
-  alertInstanceState: GrafanaAlertState | undefined,
+  alertInstanceState: InstanceStateFilter | undefined,
   alerts: Alert[]
 ): Alert[] {
   let filteredAlerts = [...alerts];