diff --git a/React/Fabric/Mounting/ComponentViews/TextInput/RCTTextInputComponentView.mm b/React/Fabric/Mounting/ComponentViews/TextInput/RCTTextInputComponentView.mm
--- a/React/Fabric/Mounting/ComponentViews/TextInput/RCTTextInputComponentView.mm
+++ b/React/Fabric/Mounting/ComponentViews/TextInput/RCTTextInputComponentView.mm
@@ -701,7 +701,8 @@
 - (TextInputEventEmitter::Metrics)_textInputMetrics
 {
   return {
       .text = RCTStringFromNSString(_backedTextInputView.attributedText.string),
+      .isComposing = _backedTextInputView.markedTextRange != nil,
       .selectionRange = [self _selectionRange],
       .eventCount = static_cast<int>(_mostRecentEventCount),
       .contentOffset = RCTPointFromCGPoint(_backedTextInputView.contentOffset),
diff --git a/ReactCommon/react/renderer/components/textinput/TextInputEventEmitter.cpp b/ReactCommon/react/renderer/components/textinput/TextInputEventEmitter.cpp
--- a/ReactCommon/react/renderer/components/textinput/TextInputEventEmitter.cpp
+++ b/ReactCommon/react/renderer/components/textinput/TextInputEventEmitter.cpp
@@ -20,6 +20,10 @@ static jsi::Value textInputMetricsPayload(
       "text",
       jsi::String::createFromUtf8(runtime, textInputMetrics.text));
 
+  if (textInputMetrics.isComposing.has_value()) {
+    payload.setProperty(runtime, "isComposing", *textInputMetrics.isComposing);
+  }
+
   payload.setProperty(runtime, "target", textInputMetrics.target);
 
   payload.setProperty(runtime, "eventCount", textInputMetrics.eventCount);
diff --git a/ReactCommon/react/renderer/components/textinput/TextInputEventEmitter.h b/ReactCommon/react/renderer/components/textinput/TextInputEventEmitter.h
--- a/ReactCommon/react/renderer/components/textinput/TextInputEventEmitter.h
+++ b/ReactCommon/react/renderer/components/textinput/TextInputEventEmitter.h
@@ -6,6 +6,8 @@
 
 #pragma once
 
+#include <optional>
+
 #include <react/renderer/attributedstring/AttributedString.h>
 #include <react/renderer/components/view/ViewEventEmitter.h>
 
@@ -18,6 +20,7 @@ class TextInputEventEmitter : public ViewEventEmitter {
 
   struct Metrics {
     std::string text;
+    std::optional<bool> isComposing;
     AttributedString::Range selectionRange;
     // ScrollView-like metrics
     Size contentSize;