diff --git a/src/libraries/System.Reflection/tests/TypeInfoTests.cs b/src/libraries/System.Reflection/tests/TypeInfoTests.cs
index 8cd5af684ca3e..61855a55a468c 100644
--- a/src/libraries/System.Reflection/tests/TypeInfoTests.cs
+++ b/src/libraries/System.Reflection/tests/TypeInfoTests.cs
@@ -733,7 +733,6 @@ public void GetConstructor(Type[] types, int? expected)
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/mono/mono/issues/15029", TestRuntimes.Mono)]
         public static void FindMembers()
         {
             MemberInfo[] members = typeof(MembersClass).GetTypeInfo().FindMembers(MemberTypes.All, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance, (MemberInfo memberInfo, object c) => true, "notused");
diff --git a/src/mono/mono/mini/interp/transform.c b/src/mono/mono/mini/interp/transform.c
index 2711262fbbb65..dee2d46c67520 100644
--- a/src/mono/mono/mini/interp/transform.c
+++ b/src/mono/mono/mini/interp/transform.c
@@ -1897,6 +1897,19 @@ interp_handle_intrinsics (TransformData *td, MonoMethod *target_method, MonoClas
 			interp_add_ins (td, MINT_LDC_I4);
 			WRITE32_INS (td->last_ins, 0, &offset);
 			push_simple_type (td, STACK_TYPE_I4);
+			td->ip += 5;
+			return TRUE;
+		} else if (!strcmp (tm, "GetRawData")) {
+#if SIZEOF_VOID_P == 8
+			interp_add_ins (td, MINT_LDC_I8_S);
+#else
+			interp_add_ins (td, MINT_LDC_I4_S);
+#endif
+			td->last_ins->data [0] = (gint16) MONO_ABI_SIZEOF (MonoObject);
+
+			interp_add_ins (td, MINT_ADD_P);
+			SET_SIMPLE_TYPE (td->sp - 1, STACK_TYPE_MP);
+
 			td->ip += 5;
 			return TRUE;
 		} else if (!strcmp (tm, "IsBitwiseEquatable")) {
@@ -1951,22 +1964,6 @@ interp_handle_intrinsics (TransformData *td, MonoMethod *target_method, MonoClas
 #endif
 				)
 			*op = MINT_INTRINS_GET_TYPE;
-#ifdef ENABLE_NETCORE
-		else if (!strcmp (tm, "GetRawData")) {
-#if SIZEOF_VOID_P == 8
-			interp_add_ins (td, MINT_LDC_I8_S);
-#else
-			interp_add_ins (td, MINT_LDC_I4_S);
-#endif
-			td->last_ins->data [0] = (gint16) MONO_ABI_SIZEOF (MonoObject);
-
-			interp_add_ins (td, MINT_ADD_P);
-			SET_SIMPLE_TYPE (td->sp - 1, STACK_TYPE_MP);
-
-			td->ip += 5;
-			return TRUE;
-		}
-#endif
 	} else if (in_corlib && target_method->klass == mono_defaults.enum_class && !strcmp (tm, "HasFlag")) {
 		gboolean intrinsify = FALSE;
 		MonoClass *base_klass = NULL;
diff --git a/src/mono/mono/mini/intrinsics.c b/src/mono/mono/mini/intrinsics.c
index dccb2c51d4fce..c8b9d9249d237 100644
--- a/src/mono/mono/mini/intrinsics.c
+++ b/src/mono/mono/mini/intrinsics.c
@@ -680,12 +680,6 @@ mini_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSign
 		int dreg = alloc_preg (cfg);
 		EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, dreg, args [0]->dreg, 0);
 		return ins;
-	} else if (in_corlib && cmethod->klass == mono_defaults.object_class) {
-		if (!strcmp (cmethod->name, "GetRawData")) {
-			int dreg = alloc_preg (cfg);
-			EMIT_NEW_BIALU_IMM (cfg, ins, OP_PADD_IMM, dreg, args [0]->dreg, MONO_ABI_SIZEOF (MonoObject));
-			return ins;
-		}
 	}
 
 	if (!(cfg->opt & MONO_OPT_INTRINS))
@@ -860,6 +854,10 @@ mini_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSign
 		if (strcmp (cmethod->name, "get_OffsetToStringData") == 0 && fsig->param_count == 0) {
 			EMIT_NEW_ICONST (cfg, ins, MONO_STRUCT_OFFSET (MonoString, chars));
 			return ins;
+		} else if (!strcmp (cmethod->name, "GetRawData")) {
+			int dreg = alloc_preg (cfg);
+			EMIT_NEW_BIALU_IMM (cfg, ins, OP_PADD_IMM, dreg, args [0]->dreg, MONO_ABI_SIZEOF (MonoObject));
+			return ins;
 		} else if (strcmp (cmethod->name, "IsReferenceOrContainsReferences") == 0 && fsig->param_count == 0) {
 			MonoGenericContext *ctx = mono_method_get_context (cmethod);
 			g_assert (ctx);
diff --git a/src/mono/netcore/System.Private.CoreLib/src/System/Object.Mono.cs b/src/mono/netcore/System.Private.CoreLib/src/System/Object.Mono.cs
index 16654bb93f611..582a55c7c4dfd 100644
--- a/src/mono/netcore/System.Private.CoreLib/src/System/Object.Mono.cs
+++ b/src/mono/netcore/System.Private.CoreLib/src/System/Object.Mono.cs
@@ -13,9 +13,5 @@ public partial class Object
         [MethodImplAttribute(MethodImplOptions.InternalCall)]
         protected extern object MemberwiseClone();
 
-        [Intrinsic]
-        internal ref byte GetRawData() => ref GetRawData();
-
-        internal object CloneInternal() => MemberwiseClone();
     }
 }
diff --git a/src/mono/netcore/System.Private.CoreLib/src/System/Runtime/CompilerServices/RuntimeHelpers.Mono.cs b/src/mono/netcore/System.Private.CoreLib/src/System/Runtime/CompilerServices/RuntimeHelpers.Mono.cs
index bb366f9b30f8b..9dc704ced4464 100644
--- a/src/mono/netcore/System.Private.CoreLib/src/System/Runtime/CompilerServices/RuntimeHelpers.Mono.cs
+++ b/src/mono/netcore/System.Private.CoreLib/src/System/Runtime/CompilerServices/RuntimeHelpers.Mono.cs
@@ -1,5 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
+using Internal.Runtime.CompilerServices;
 
 namespace System.Runtime.CompilerServices
 {
@@ -109,6 +110,9 @@ public static IntPtr AllocateTypeAssociatedMemory(Type type, int size)
             throw new PlatformNotSupportedException();
         }
 
+        [Intrinsic]
+        internal static ref byte GetRawData(this object obj) => ref obj.GetRawData();
+
         [Intrinsic]
         public static bool IsReferenceOrContainsReferences<T>() => IsReferenceOrContainsReferences<T>();
 
diff --git a/src/mono/netcore/System.Private.CoreLib/src/System/Runtime/InteropServices/MarshalAsAttribute.Mono.cs b/src/mono/netcore/System.Private.CoreLib/src/System/Runtime/InteropServices/MarshalAsAttribute.Mono.cs
index 3958bd65ff9a4..fdd313adbacc2 100644
--- a/src/mono/netcore/System.Private.CoreLib/src/System/Runtime/InteropServices/MarshalAsAttribute.Mono.cs
+++ b/src/mono/netcore/System.Private.CoreLib/src/System/Runtime/InteropServices/MarshalAsAttribute.Mono.cs
@@ -6,5 +6,6 @@ namespace System.Runtime.InteropServices
     [StructLayout(LayoutKind.Sequential)]
     public partial class MarshalAsAttribute
     {
+            internal object CloneInternal() => MemberwiseClone();
     }
 }