diff --git a/ffi/newpassmanagers.cpp b/ffi/newpassmanagers.cpp
index 4d3cba987..dfbfaeac9 100644
--- a/ffi/newpassmanagers.cpp
+++ b/ffi/newpassmanagers.cpp
@@ -37,11 +37,6 @@ typedef OpaquePipelineTuningOptions *LLVMPipelineTuningOptionsRef;
 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(PipelineTuningOptions,
                                    LLVMPipelineTuningOptionsRef)
 
-struct OpaquePassInstrumentationCallbacks;
-typedef OpaquePassInstrumentationCallbacks *LLVMPassInstrumentationCallbacksRef;
-DEFINE_SIMPLE_CONVERSION_FUNCTIONS(PassInstrumentationCallbacks,
-                                   LLVMPassInstrumentationCallbacksRef)
-
 struct OpaqueTimePassesHandler;
 typedef OpaqueTimePassesHandler *LLVMTimePassesHandlerRef;
 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(TimePassesHandler, LLVMTimePassesHandlerRef)
@@ -290,17 +285,6 @@ LLVMPY_DisposePipelineTuningOptions(LLVMPipelineTuningOptionsRef PTO) {
 
 // PB
 
-API_EXPORT(LLVMPassInstrumentationCallbacksRef)
-LLVMPY_LLVMPassInstrumentationCallbacksCreate() {
-    return llvm::wrap(new PassInstrumentationCallbacks());
-}
-
-API_EXPORT(void)
-LLVMPY_LLVMPassInstrumentationCallbacksDispose(
-    LLVMPassInstrumentationCallbacksRef PICRef) {
-    delete llvm::unwrap(PICRef);
-}
-
 API_EXPORT(LLVMTimePassesHandlerRef)
 LLVMPY_CreateLLVMTimePassesHandler() {
     return llvm::wrap(new TimePassesHandler(true));
@@ -312,11 +296,12 @@ LLVMPY_DisposeLLVMTimePassesHandler(LLVMTimePassesHandlerRef TimePassesRef) {
 }
 
 API_EXPORT(void)
-LLVMPY_SetTimePassesNPM(LLVMTimePassesHandlerRef TimePassesRef,
-                        LLVMPassInstrumentationCallbacksRef PICRef) {
+LLVMPY_SetTimePassesNPM(LLVMPassBuilderRef PBRef, LLVMTimePassesHandlerRef TimePassesRef) {
     TimePassesHandler *TP = llvm::unwrap(TimePassesRef);
     TimePassesIsEnabled = true;
-    TP->registerCallbacks(*llvm::unwrap(PICRef));
+    PassBuilder *PB = llvm::unwrap(PBRef);
+    PassInstrumentationCallbacks *PIC = PB->getPassInstrumentationCallbacks();
+    TP->registerCallbacks(*PIC);
 }
 
 API_EXPORT(void)
@@ -334,11 +319,10 @@ LLVMPY_ReportAndResetTimingsNPM(LLVMTimePassesHandlerRef TimePassesRef,
 
 API_EXPORT(LLVMPassBuilderRef)
 LLVMPY_CreatePassBuilder(LLVMTargetMachineRef TMRef,
-                         LLVMPipelineTuningOptionsRef PTORef,
-                         LLVMPassInstrumentationCallbacksRef PICRef) {
+                         LLVMPipelineTuningOptionsRef PTORef) {
     TargetMachine *TM = llvm::unwrap(TMRef);
     PipelineTuningOptions *PTO = llvm::unwrap(PTORef);
-    PassInstrumentationCallbacks *PIC = llvm::unwrap(PICRef);
+    PassInstrumentationCallbacks *PIC = new PassInstrumentationCallbacks();
 #if LLVM_VERSION_MAJOR < 16
     return llvm::wrap(new PassBuilder(TM, *PTO, None, PIC));
 #else
diff --git a/llvmlite/binding/ffi.py b/llvmlite/binding/ffi.py
index 7ec9dc242..a0008ae44 100644
--- a/llvmlite/binding/ffi.py
+++ b/llvmlite/binding/ffi.py
@@ -40,8 +40,6 @@ def _make_opaque_ref(name):
 LLVMSectionIteratorRef = _make_opaque_ref("LLVMSectionIterator")
 LLVMOrcLLJITRef = _make_opaque_ref("LLVMOrcLLJITRef")
 LLVMOrcDylibTrackerRef = _make_opaque_ref("LLVMOrcDylibTrackerRef")
-LLVMPassInstrumentationCallbacksRef = \
-    _make_opaque_ref("LLVMPassInstrumentationCallbacks")
 LLVMTimePassesHandlerRef = _make_opaque_ref("LLVMTimePassesHandler")
 LLVMPipelineTuningOptionsRef = _make_opaque_ref("LLVMPipeLineTuningOptions")
 LLVMModulePassManagerRef = _make_opaque_ref("LLVMModulePassManager")
diff --git a/llvmlite/binding/newpassmanagers.py b/llvmlite/binding/newpassmanagers.py
index 9b2dfc8b7..0902ee93f 100644
--- a/llvmlite/binding/newpassmanagers.py
+++ b/llvmlite/binding/newpassmanagers.py
@@ -208,32 +208,19 @@ def _dispose(self):
         ffi.lib.LLVMPY_DisposePipelineTuningOptions(self)
 
 
-class TimePassesHandler(ffi.ObjectRef):
-    def __init__(self):
-        super().__init__(ffi.lib.LLVMPY_CreateLLVMTimePassesHandler())
-
-    def _dispose(self):
-        ffi.lib.LLVMPY_DisposeLLVMTimePassesHandler(self)
-
-
-class PassInstrumentationCallbacks(ffi.ObjectRef):
-    def __init__(self):
-        super().__init__(
-            ffi.lib.LLVMPY_LLVMPassInstrumentationCallbacksCreate()
-        )
-
-    def _dispose(self):
-        ffi.lib.LLVMPY_LLVMPassInstrumentationCallbacksDispose(self)
-
-
 class PassBuilder(ffi.ObjectRef):
+    class TimePassesHandler(ffi.ObjectRef):
+        def __init__(self):
+            super().__init__(ffi.lib.LLVMPY_CreateLLVMTimePassesHandler())
+
+        def _dispose(self):
+            ffi.lib.LLVMPY_DisposeLLVMTimePassesHandler(self)
 
     def __init__(self, tm, pto):
-        self._pic = PassInstrumentationCallbacks()
-        self._time_passes = TimePassesHandler()
-        super().__init__(ffi.lib.LLVMPY_CreatePassBuilder(tm, pto, self._pic))
+        super().__init__(ffi.lib.LLVMPY_CreatePassBuilder(tm, pto))
         self._pto = pto
         self._tm = tm
+        self._time_passes = self.TimePassesHandler()
 
     def getModulePassManager(self):
         return ModulePassManager(
@@ -250,7 +237,7 @@ def getFunctionPassManager(self):
     def set_time_passes(self):
         """Enable the pass timers.
         """
-        ffi.lib.LLVMPY_SetTimePassesNPM(self._time_passes, self._pic)
+        ffi.lib.LLVMPY_SetTimePassesNPM(self, self._time_passes)
 
     def report_and_reset_timings(self):
         """Returns the pass timings report and resets the LLVM internal timers.
@@ -380,7 +367,6 @@ def _dispose(self):
 ffi.lib.LLVMPY_CreatePassBuilder.argtypes = [
     ffi.LLVMTargetMachineRef,
     ffi.LLVMPipelineTuningOptionsRef,
-    ffi.LLVMPassInstrumentationCallbacksRef,
 ]
 
 ffi.lib.LLVMPY_DisposePassBuilder.argtypes = [ffi.LLVMPassBuilderRef,]
@@ -392,8 +378,8 @@ def _dispose(self):
     ffi.LLVMTimePassesHandlerRef,]
 
 ffi.lib.LLVMPY_SetTimePassesNPM.argtypes = [
+    ffi.LLVMPassBuilderRef,
     ffi.LLVMTimePassesHandlerRef,
-    ffi.LLVMPassInstrumentationCallbacksRef,
 ]
 
 ffi.lib.LLVMPY_ReportAndResetTimingsNPM.argtypes = [
@@ -401,14 +387,6 @@ def _dispose(self):
     POINTER(c_char_p),
 ]
 
-ffi.lib.LLVMPY_LLVMPassInstrumentationCallbacksCreate.restype = (
-    ffi.LLVMPassInstrumentationCallbacksRef
-)
-
-ffi.lib.LLVMPY_LLVMPassInstrumentationCallbacksDispose.argtypes = (
-    ffi.LLVMPassInstrumentationCallbacksRef,
-)
-
 # Pipeline builders
 
 ffi.lib.LLVMPY_buildPerModuleDefaultPipeline.restype = \