diff --git a/packages/react-native/src/private/webapis/intersectionobserver/__tests__/IntersectionObserver-itest.js b/packages/react-native/src/private/webapis/intersectionobserver/__tests__/IntersectionObserver-itest.js
index 125343172a5..964d772b51d 100644
--- a/packages/react-native/src/private/webapis/intersectionobserver/__tests__/IntersectionObserver-itest.js
+++ b/packages/react-native/src/private/webapis/intersectionobserver/__tests__/IntersectionObserver-itest.js
@@ -1577,5 +1577,41 @@ describe('IntersectionObserver', () => {
 
       expect(callback).not.toHaveBeenCalled();
     });
+
+    it('should not dispatch pending entries when disconnecting', () => {
+      const root = Fantom.createRoot({
+        viewportWidth: 1000,
+        viewportHeight: 1000,
+      });
+
+      const nodeRef = createRef<HostInstance>();
+
+      Fantom.runTask(() => {
+        root.render(<View ref={nodeRef} style={{width: 100, height: 100}} />);
+      });
+
+      const node = ensureReactNativeElement(nodeRef.current);
+
+      const intersectionObserverCallback = jest.fn();
+
+      Fantom.runTask(() => {
+        observer = new IntersectionObserver(intersectionObserverCallback);
+
+        // At the end of the current tick, we schedule the execution of the
+        // intersection observer callback with the initial state of the
+        // target.
+        observer.observe(node);
+
+        // This is executed in the next tick, before the intersection observer
+        // callback is called.
+        Fantom.scheduleTask(() => {
+          expect(intersectionObserverCallback).not.toHaveBeenCalled();
+
+          observer.disconnect();
+        });
+      });
+
+      expect(intersectionObserverCallback).toHaveBeenCalledTimes(0);
+    });
   });
 });
diff --git a/packages/react-native/src/private/webapis/structuredClone/__tests__/structuredClone-itest.js b/packages/react-native/src/private/webapis/structuredClone/__tests__/structuredClone-itest.js
index 68c6cc8dbed..eeeaa8fe466 100644
--- a/packages/react-native/src/private/webapis/structuredClone/__tests__/structuredClone-itest.js
+++ b/packages/react-native/src/private/webapis/structuredClone/__tests__/structuredClone-itest.js
@@ -23,6 +23,7 @@ import EventTarget from 'react-native/src/private/webapis/dom/events/EventTarget
 import ReactNativeElement from 'react-native/src/private/webapis/dom/nodes/ReactNativeElement';
 import DOMException from 'react-native/src/private/webapis/errors/DOMException';
 import IntersectionObserver from 'react-native/src/private/webapis/intersectionobserver/IntersectionObserver';
+import IntersectionObserverEntry from 'react-native/src/private/webapis/intersectionobserver/IntersectionObserverEntry';
 import MutationObserver from 'react-native/src/private/webapis/mutationobserver/MutationObserver';
 import structuredClone from 'react-native/src/private/webapis/structuredClone/structuredClone';
 
@@ -390,18 +391,17 @@ describe('structuredClone', () => {
 
         const entries: Array<mixed> = [];
         Fantom.runTask(() => {
-          const observer = new IntersectionObserver(e => {
+          const observer = new IntersectionObserver((e, self) => {
             entries.push(...e);
+            self.disconnect();
           });
 
           observer.observe(ensureInstance(ref.current, ReactNativeElement));
-
-          Fantom.scheduleTask(() => {
-            observer.disconnect();
-          });
         });
 
-        expectDataCloneError(() => structuredClone(entries[0]));
+        const entry = ensureInstance(entries[0], IntersectionObserverEntry);
+
+        expectDataCloneError(() => structuredClone(entry));
       });
 
       it('does NOT clone MutationObserver', () => {