diff --git a/ios/Common/ModalSheetState+Helpers.swift b/ios/Common/ModalSheetState+Helpers.swift
index 3c9bf9e2..3166b35c 100644
--- a/ios/Common/ModalSheetState+Helpers.swift
+++ b/ios/Common/ModalSheetState+Helpers.swift
@@ -19,6 +19,6 @@ public extension ModalSheetState {
   };
   
   var asDictionary: [String : Any] {
-    self.asMetrics.synthesizedDictionary;
+    self.asMetrics.synthesizedDictionaryJSON;
   };
 };
diff --git a/ios/RNIModalSheetView/RNIModalSheetViewDelegate.swift b/ios/RNIModalSheetView/RNIModalSheetViewDelegate.swift
index 8f8c6f41..abb1ee44 100644
--- a/ios/RNIModalSheetView/RNIModalSheetViewDelegate.swift
+++ b/ios/RNIModalSheetView/RNIModalSheetViewDelegate.swift
@@ -9,6 +9,7 @@ import UIKit
 import DGSwiftUtilities
 import react_native_ios_utilities
 
+
 @objc(RNIModalSheetViewDelegate)
 public final class RNIModalSheetViewDelegate: UIView, RNIContentView {
 
@@ -27,7 +28,7 @@ public final class RNIModalSheetViewDelegate: UIView, RNIContentView {
     case onModalDidHide;
     
     case onModalSheetStateWillChange;
-    case onModalSheetStateDidChange;    
+    case onModalSheetStateDidChange;
   };
   
   public static var propKeyPathMap: PropKeyPathMap {
@@ -68,6 +69,23 @@ public final class RNIModalSheetViewDelegate: UIView, RNIContentView {
   // MARK: - Methods
   // ---------------
   
+  func createModalController() throws -> RNIModalSheetViewController {
+    guard let mainSheetContentParent = self.sheetMainContentParentView else {
+      throw RNIUtilitiesError(errorCode: .unexpectedNilValue);
+    };
+  
+    let modalVC = RNIModalSheetViewController();
+    self.modalSheetController = modalVC;
+    
+    modalVC.mainSheetContentParent = mainSheetContentParent;
+    modalVC.view.backgroundColor = .systemBackground;
+    
+    modalVC.lifecycleEventDelegates.add(self);
+    modalVC.sheetPresentationStateMachine.eventDelegates.add(self);
+    
+    return modalVC;
+  };
+  
   func discardCurrentModalControllerIfNeeded(){
     guard let modalVC = self.modalSheetController,
           !modalVC.isPresentedAsModal
@@ -150,21 +168,12 @@ extension RNIModalSheetViewDelegate: RNIContentViewDelegate {
             throw RNIUtilitiesError(errorCode: .unexpectedNilValue);
           };
 
-          guard let mainSheetContentParent = self.sheetMainContentParentView else {
-            throw RNIUtilitiesError(errorCode: .unexpectedNilValue);
-          };
-          
           let isAnimated: Bool = commandArguments.getValueFromDictionary(
             forKey: "isAnimated",
             fallbackValue: true
           );
           
-          let modalVC = RNIModalSheetViewController();
-          self.modalSheetController = modalVC;
-          
-          modalVC.mainSheetContentParent = mainSheetContentParent;
-          modalVC.view.backgroundColor = .systemBackground;
-          modalVC.lifecycleEventDelegates.add(self);
+          let modalVC = try self.createModalController();
           
           self.dispatchEvent(
             for: .onModalWillPresent,
@@ -285,3 +294,46 @@ extension RNIModalSheetViewDelegate: ViewControllerLifecycleNotifiable {
     );
   };
 };
+
+// MARK: - RNIModalSheetViewDelegate+ViewControllerLifecycleNotifiable
+// -------------------------------------------------------------------
+
+extension RNIModalSheetViewDelegate: ModalSheetPresentationStateEventsNotifiable {
+  
+  public func onModalSheetStateWillChange(
+    sender: ModalSheetPresentationStateMachine,
+    prevState: ModalSheetState?,
+    currentState: ModalSheetState,
+    nextState: ModalSheetState
+  ) {
+    var payload: Dictionary<String, Any> = [
+      "currentState": currentState.asDictionary,
+      "nextState": nextState.asDictionary
+    ];
+    
+    payload.unwrapAndMerge(withOther: [
+      "prevState": prevState?.asDictionary
+    ]);
+    
+    self.dispatchEvent(
+      for: .onModalSheetStateWillChange,
+      withPayload: payload
+    );
+  };
+  
+  public func onModalSheetStateDidChange(
+    sender: ModalSheetPresentationStateMachine,
+    prevState: ModalSheetState?,
+    currentState: ModalSheetState
+  ) {
+    let payload: Dictionary<String, Any> = [
+      "prevState": currentState.asDictionary,
+      "currentState": currentState.asDictionary
+    ];
+    
+    self.dispatchEvent(
+      for: .onModalSheetStateWillChange,
+      withPayload: payload
+    );
+  };
+};
diff --git a/src/native_components/RNIModalSheetVIew/RNIModalSheetViewEvents.ts b/src/native_components/RNIModalSheetVIew/RNIModalSheetViewEvents.ts
index 5bc2655c..5e6f2107 100644
--- a/src/native_components/RNIModalSheetVIew/RNIModalSheetViewEvents.ts
+++ b/src/native_components/RNIModalSheetVIew/RNIModalSheetViewEvents.ts
@@ -1,14 +1,20 @@
 
 import type { BubblingEventHandler } from 'react-native/Libraries/Types/CodegenTypes';
+import type { RNIModalSheetStateMetrics } from '../../types/RNIModalSheetStateMetrics';
 
 
 // MARK: Event Objects
 // -------------------
 
 export type OnModalSheetStateWillChangeEventPayload = Readonly<{
+  prevState?: RNIModalSheetStateMetrics;
+  currentState: RNIModalSheetStateMetrics;
+  nextState: RNIModalSheetStateMetrics;
 }>;
 
 export type OnModalSheetStateDidChangeEventPayload = Readonly<{
+  prevState: RNIModalSheetStateMetrics;
+  currentState: RNIModalSheetStateMetrics;
 }>;
 
 // MARK: Events
diff --git a/src/native_components/RNIModalSheetVIew/RNIModalSheetViewTypes.ts b/src/native_components/RNIModalSheetVIew/RNIModalSheetViewTypes.ts
index 09001300..ddcbc783 100644
--- a/src/native_components/RNIModalSheetVIew/RNIModalSheetViewTypes.ts
+++ b/src/native_components/RNIModalSheetVIew/RNIModalSheetViewTypes.ts
@@ -39,6 +39,10 @@ export type RNIModalSheetViewInheritedOptionalProps = Partial<Pick<RNIModalSheet
   | 'onModalDidShow'
   | 'onModalWillHide'
   | 'onModalDidHide'
+
+  // modal sheet events
+  | 'onModalSheetStateWillChange'
+  | 'onModalSheetStateDidChange'
 >>;
 
 export type RNIModalSheetViewBaseProps = {