diff --git a/services/core/java/com/android/server/wm/RootWindowContainer.java b/services/core/java/com/android/server/wm/RootWindowContainer.java
index f5ab38f..4a564157 100644
--- a/services/core/java/com/android/server/wm/RootWindowContainer.java
+++ b/services/core/java/com/android/server/wm/RootWindowContainer.java
@@ -2163,6 +2163,12 @@
                 // Use Task#setBoundsUnchecked to skip checking windowing mode as the windowing mode
                 // will be updated later after this is collected in transition.
                 rootTask.setBoundsUnchecked(taskFragment.getBounds());
+                // The exit-PIP activity resumes early for seamless transition. In certain
+                // scenarios, this introduces unintended addition to recents. To address this,
+                // we mark the root task for automatic removal from recents. This ensures that
+                // after the pinned activity reparents to its original task, the root task is
+                // automatically removed from the recents list.
+                rootTask.autoRemoveRecents = true;
 
                 // Move the last recents animation transaction from original task to the new one.
                 if (task.mLastRecentsAnimationTransaction != null) {
diff --git a/services/tests/wmtests/src/com/android/server/wm/RootWindowContainerTests.java b/services/tests/wmtests/src/com/android/server/wm/RootWindowContainerTests.java
index eb79118..3078df0 100644
--- a/services/tests/wmtests/src/com/android/server/wm/RootWindowContainerTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/RootWindowContainerTests.java
@@ -392,6 +392,8 @@
         assertEquals(newPipTask, mDisplayContent.getDefaultTaskDisplayArea().getRootPinnedTask());
         assertNotEquals(newPipTask, activity1.getTask());
         assertFalse("Created PiP task must not be in recents", newPipTask.inRecents);
+        assertThat(newPipTask.autoRemoveRecents).isTrue();
+        assertThat(activity1.getTask().autoRemoveRecents).isFalse();
     }
 
     /**
@@ -427,6 +429,7 @@
         bounds.scale(0.5f);
         task.setBounds(bounds);
         assertFalse(activity.isLetterboxedForFixedOrientationAndAspectRatio());
+        assertThat(task.autoRemoveRecents).isFalse();
     }
 
     /**
@@ -451,6 +454,7 @@
         // Ensure a task has moved over.
         ensureTaskPlacement(task, activity);
         assertTrue(task.inPinnedWindowingMode());
+        assertThat(task.autoRemoveRecents).isFalse();
     }
 
     /**
@@ -480,6 +484,8 @@
         ensureTaskPlacement(fullscreenTask, secondActivity);
         assertTrue(pinnedRootTask.inPinnedWindowingMode());
         assertEquals(WINDOWING_MODE_FULLSCREEN, fullscreenTask.getWindowingMode());
+        assertThat(pinnedRootTask.autoRemoveRecents).isTrue();
+        assertThat(secondActivity.getTask().autoRemoveRecents).isFalse();
     }
 
     @Test
diff --git a/services/tests/wmtests/src/com/android/server/wm/TaskTests.java b/services/tests/wmtests/src/com/android/server/wm/TaskTests.java
index e01cea3..ef0aa9e 100644
--- a/services/tests/wmtests/src/com/android/server/wm/TaskTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/TaskTests.java
@@ -42,6 +42,7 @@
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.times;
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.verify;
 import static com.android.server.policy.WindowManagerPolicy.USER_ROTATION_FREE;
+import static com.android.server.wm.ActivityRecord.State.RESUMED;
 import static com.android.server.wm.Task.FLAG_FORCE_HIDDEN_FOR_TASK_ORG;
 import static com.android.server.wm.TaskFragment.EMBEDDED_DIM_AREA_PARENT_TASK;
 import static com.android.server.wm.TaskFragment.TASK_FRAGMENT_VISIBILITY_VISIBLE_BEHIND_TRANSLUCENT;
@@ -222,6 +223,27 @@
     }
 
     @Test
+    public void testReparentPinnedActivityBackToOriginalTask() {
+        final ActivityRecord activityMain = new ActivityBuilder(mAtm).setCreateTask(true).build();
+        final Task originalTask = activityMain.getTask();
+        final ActivityRecord activityPip = new ActivityBuilder(mAtm).setTask(originalTask).build();
+        activityPip.setState(RESUMED, "test");
+        mAtm.mRootWindowContainer.moveActivityToPinnedRootTask(activityPip,
+                null /* launchIntoPipHostActivity */, "test");
+        final Task pinnedActivityTask = activityPip.getTask();
+
+        // Simulate pinnedActivityTask unintentionally added to recent during top activity resume.
+        mAtm.getRecentTasks().getRawTasks().add(pinnedActivityTask);
+
+        // Reparent the activity back to its original task when exiting PIP mode.
+        pinnedActivityTask.setWindowingMode(WINDOWING_MODE_FULLSCREEN);
+
+        assertThat(activityPip.getTask()).isEqualTo(originalTask);
+        assertThat(originalTask.autoRemoveRecents).isFalse();
+        assertThat(mAtm.getRecentTasks().getRawTasks()).containsExactly(originalTask);
+    }
+
+    @Test
     public void testReparent_BetweenDisplays() {
         // Create first task on primary display.
         final Task rootTask1 = createTask(mDisplayContent);