diff --git a/frontend/src/features/PriorNotification/components/LogbookPriorNotificationForm/index.tsx b/frontend/src/features/PriorNotification/components/LogbookPriorNotificationForm/index.tsx
index 31a22e608e..35300e07c1 100644
--- a/frontend/src/features/PriorNotification/components/LogbookPriorNotificationForm/index.tsx
+++ b/frontend/src/features/PriorNotification/components/LogbookPriorNotificationForm/index.tsx
@@ -43,7 +43,7 @@ export function LogbookPriorNotificationForm() {
   }
 
   customSentry.endMeasurement(
-    CustomSentryMeasurementName.LOGBOOK_PRIOR_NOTIFICATION_FORM_SPINNER,
+    CustomSentryMeasurementName.LOGBOOK_PRIOR_NOTIFICATION_FORM_LOADING,
     openedPriorNotificationDetail.reportId,
     2000
   )
diff --git a/frontend/src/features/PriorNotification/components/ManualPriorNotificationForm/index.tsx b/frontend/src/features/PriorNotification/components/ManualPriorNotificationForm/index.tsx
index 9c7868cd01..49cc01fd35 100644
--- a/frontend/src/features/PriorNotification/components/ManualPriorNotificationForm/index.tsx
+++ b/frontend/src/features/PriorNotification/components/ManualPriorNotificationForm/index.tsx
@@ -28,6 +28,7 @@ export function ManualPriorNotificationForm() {
   const editedManualPriorNotificationFormValues = useMainAppSelector(
     state => state.priorNotification.editedManualPriorNotificationFormValues
   )
+  const editedPriorNotificationId = useMainAppSelector(state => state.priorNotification.editedPriorNotificationId)
   const openedPriorNotificationDetail = useMainAppSelector(
     state => state.priorNotification.openedPriorNotificationDetail
   )
@@ -80,16 +81,24 @@ export function ManualPriorNotificationForm() {
   }
 
   if (!editedManualPriorNotificationFormValues || isLoading) {
+    const customSentryProps = editedPriorNotificationId
+      ? {
+          id: editedPriorNotificationId,
+          maxExpectedDurationInMs: 2000,
+          name: CustomSentryMeasurementName.MANUAL_PRIOR_NOTIFICATION_FORM_SPINNER
+        }
+      : undefined
+
     return (
       <SideWindowCard onBackgroundClick={close}>
-        <LoadingSpinnerWall />
+        <LoadingSpinnerWall customSentryProps={customSentryProps} />
       </SideWindowCard>
     )
   }
 
   if (openedPriorNotificationDetail?.reportId) {
     customSentry.endMeasurement(
-      CustomSentryMeasurementName.MANUAL_PRIOR_NOTIFICATION_FORM_SPINNER,
+      CustomSentryMeasurementName.MANUAL_PRIOR_NOTIFICATION_FORM_LOADING,
       openedPriorNotificationDetail.reportId,
       2000
     )
diff --git a/frontend/src/features/PriorNotification/components/PriorNotificationCard/index.tsx b/frontend/src/features/PriorNotification/components/PriorNotificationCard/index.tsx
index 2ecbc6a09e..7447d6cb41 100644
--- a/frontend/src/features/PriorNotification/components/PriorNotificationCard/index.tsx
+++ b/frontend/src/features/PriorNotification/components/PriorNotificationCard/index.tsx
@@ -9,6 +9,7 @@ import {
 } from '@features/PriorNotification/utils'
 import { useMainAppDispatch } from '@hooks/useMainAppDispatch'
 import { useMainAppSelector } from '@hooks/useMainAppSelector'
+import { CustomSentryMeasurementName } from '@libs/customSentry'
 import { DisplayedErrorKey } from '@libs/DisplayedError/constants'
 import { Accent, Button, Level } from '@mtes-mct/monitor-ui'
 import { useIsSuperUser } from 'auth/hooks/useIsSuperUser'
@@ -40,6 +41,7 @@ export function PriorNotificationCard({
   const displayedError = useMainAppSelector(
     state => state.displayedError[DisplayedErrorKey.SIDE_WINDOW_PRIOR_NOTIFICATION_CARD_ERROR]
   )
+  const editedPriorNotificationId = useMainAppSelector(state => state.priorNotification.editedPriorNotificationId)
   const isSuperUser = useIsSuperUser()
 
   const controlledDisplayedErrorKey = displayedError
@@ -62,9 +64,17 @@ export function PriorNotificationCard({
   }
 
   if (!detail || isLoading) {
+    const customSentryProps = editedPriorNotificationId
+      ? {
+          id: editedPriorNotificationId,
+          maxExpectedDurationInMs: 2000,
+          name: CustomSentryMeasurementName.LOGBOOK_PRIOR_NOTIFICATION_FORM_SPINNER
+        }
+      : undefined
+
     return (
       <StyledCard $isSuperUser={isSuperUser} onBackgroundClick={close}>
-        <LoadingSpinnerWall />
+        <LoadingSpinnerWall customSentryProps={customSentryProps} />
       </StyledCard>
     )
   }
diff --git a/frontend/src/features/PriorNotification/components/PriorNotificationList/TableBodyLoader.tsx b/frontend/src/features/PriorNotification/components/PriorNotificationList/TableBodyLoader.tsx
index 0156b7dc5a..89c198b7ca 100644
--- a/frontend/src/features/PriorNotification/components/PriorNotificationList/TableBodyLoader.tsx
+++ b/frontend/src/features/PriorNotification/components/PriorNotificationList/TableBodyLoader.tsx
@@ -1,4 +1,6 @@
+import { customSentry, CustomSentryMeasurementName } from '@libs/customSentry'
 import { TableWithSelectableRows } from '@mtes-mct/monitor-ui'
+import { useEffect } from 'react'
 import styled from 'styled-components'
 
 import { getTableColumns } from './columns'
@@ -11,6 +13,10 @@ export function TableBodyLoader({ isFromUrl }: TableBodyLoaderProps) {
   const emptyRows = new Array(DEFAULT_PAGE_SIZE).fill(undefined)
   const tableColumns = getTableColumns(isFromUrl)
 
+  useEffect(() => () => {
+    customSentry.endMeasurement(CustomSentryMeasurementName.MANUAL_PRIOR_NOTIFICATION_FORM_SPINNER, '0', 2000)
+  })
+
   return (
     <tbody>
       {emptyRows.map((_, index) => (
diff --git a/frontend/src/features/PriorNotification/components/PriorNotificationList/index.tsx b/frontend/src/features/PriorNotification/components/PriorNotificationList/index.tsx
index 3fd47b75de..bc68a1bd1b 100644
--- a/frontend/src/features/PriorNotification/components/PriorNotificationList/index.tsx
+++ b/frontend/src/features/PriorNotification/components/PriorNotificationList/index.tsx
@@ -146,6 +146,7 @@ export function PriorNotificationList({ isFromUrl }: PriorNotificationListProps)
   }, [previousListFilter, listFilter, table])
 
   if (isBodyLoaderVisible) {
+    customSentry.startMeasurement(CustomSentryMeasurementName.PRIOR_NOTIFICATION_LIST_BODY_LOADING, '0')
     customSentry.startMeasurement(CustomSentryMeasurementName.PRIOR_NOTIFICATION_LIST_BODY_SPINNER, '0')
   } else {
     customSentry.endMeasurement(CustomSentryMeasurementName.PRIOR_NOTIFICATION_LIST_BODY_SPINNER, '0', 2000)
diff --git a/frontend/src/features/PriorNotification/slice.ts b/frontend/src/features/PriorNotification/slice.ts
index 2268b1d280..0a23ddf362 100644
--- a/frontend/src/features/PriorNotification/slice.ts
+++ b/frontend/src/features/PriorNotification/slice.ts
@@ -12,6 +12,8 @@ export interface PriorNotificationState {
   editedLogbookPriorNotificationFormValues: PriorNotification.LogbookForm | undefined
   editedManualPriorNotificationComputedValues: Undefine<PriorNotification.ManualComputedValues> | undefined
   editedManualPriorNotificationFormValues: ManualPriorNotificationFormValues | undefined
+  // TODO Remove this prop once loading / spinner perfs tests are removed.
+  editedPriorNotificationId: string | undefined
   isPriorNotificationFormDirty: boolean
   listFilterValues: ListFilter
   openedPriorNotificationComponentType: OpenedPriorNotificationType | undefined
@@ -22,6 +24,8 @@ const INITIAL_STATE: PriorNotificationState = {
   editedLogbookPriorNotificationFormValues: undefined,
   editedManualPriorNotificationComputedValues: undefined,
   editedManualPriorNotificationFormValues: undefined,
+  // TODO Remove this prop once loading / spinner perfs tests are removed.
+  editedPriorNotificationId: undefined,
   isPriorNotificationFormDirty: false,
   listFilterValues: DEFAULT_LIST_FILTER_VALUES,
   openedPriorNotificationComponentType: undefined,
@@ -34,6 +38,7 @@ const priorNotificationSlice = createSlice({
   reducers: {
     closePriorNotificationCardAndForm(state) {
       state.editedLogbookPriorNotificationFormValues = undefined
+      state.editedPriorNotificationId = undefined
       state.editedManualPriorNotificationComputedValues = undefined
       state.editedManualPriorNotificationFormValues = undefined
       state.isPriorNotificationFormDirty = false
@@ -60,6 +65,11 @@ const priorNotificationSlice = createSlice({
       state.editedManualPriorNotificationFormValues = action.payload
     },
 
+    // TODO Remove this function once loading / spinner perfs tests are removed.
+    setEditedPriorNotificationId(state, action: PayloadAction<string>) {
+      state.editedPriorNotificationId = action.payload
+    },
+
     setIsPriorNotificationFormDirty(state, action: PayloadAction<boolean>) {
       state.isPriorNotificationFormDirty = action.payload
     },
diff --git a/frontend/src/features/PriorNotification/useCases/openLogbookPriorNotificationForm.ts b/frontend/src/features/PriorNotification/useCases/openLogbookPriorNotificationForm.ts
index 8e36de8eef..556f78cae8 100644
--- a/frontend/src/features/PriorNotification/useCases/openLogbookPriorNotificationForm.ts
+++ b/frontend/src/features/PriorNotification/useCases/openLogbookPriorNotificationForm.ts
@@ -20,6 +20,10 @@ export const openLogbookPriorNotificationForm =
   (identifier: PriorNotification.Identifier, fingerprint?: string): MainAppThunk<Promise<void>> =>
   async dispatch => {
     try {
+      customSentry.startMeasurement(
+        CustomSentryMeasurementName.LOGBOOK_PRIOR_NOTIFICATION_FORM_LOADING,
+        identifier.reportId
+      )
       customSentry.startMeasurement(
         CustomSentryMeasurementName.LOGBOOK_PRIOR_NOTIFICATION_FORM_SPINNER,
         identifier.reportId
@@ -27,6 +31,8 @@ export const openLogbookPriorNotificationForm =
 
       dispatch(displayedErrorActions.unset(DisplayedErrorKey.SIDE_WINDOW_PRIOR_NOTIFICATION_FORM_ERROR))
       dispatch(priorNotificationActions.closePriorNotificationCardAndForm())
+      // TODO Remove this function once loading / spinner perfs tests are removed.
+      dispatch(priorNotificationActions.setEditedPriorNotificationId(identifier.reportId))
       dispatch(priorNotificationActions.openPriorNotification(OpenedPriorNotificationType.LogbookForm))
 
       const logbookPriorNotification = await dispatch(
diff --git a/frontend/src/features/PriorNotification/useCases/openManualPriorNotificationForm.ts b/frontend/src/features/PriorNotification/useCases/openManualPriorNotificationForm.ts
index 8784a469e0..7227c28cc8 100644
--- a/frontend/src/features/PriorNotification/useCases/openManualPriorNotificationForm.ts
+++ b/frontend/src/features/PriorNotification/useCases/openManualPriorNotificationForm.ts
@@ -26,6 +26,10 @@ export const openManualPriorNotificationForm =
   async dispatch => {
     try {
       if (identifier) {
+        customSentry.startMeasurement(
+          CustomSentryMeasurementName.MANUAL_PRIOR_NOTIFICATION_FORM_LOADING,
+          identifier.reportId
+        )
         customSentry.startMeasurement(
           CustomSentryMeasurementName.MANUAL_PRIOR_NOTIFICATION_FORM_SPINNER,
           identifier.reportId
@@ -34,6 +38,10 @@ export const openManualPriorNotificationForm =
 
       dispatch(displayedErrorActions.unset(DisplayedErrorKey.SIDE_WINDOW_PRIOR_NOTIFICATION_FORM_ERROR))
       dispatch(priorNotificationActions.closePriorNotificationCardAndForm())
+      // TODO Remove this function once loading / spinner perfs tests are removed.
+      if (identifier) {
+        dispatch(priorNotificationActions.setEditedPriorNotificationId(identifier.reportId))
+      }
       dispatch(priorNotificationActions.openPriorNotification(OpenedPriorNotificationType.ManualForm))
 
       if (!identifier) {
diff --git a/frontend/src/libs/customSentry.ts b/frontend/src/libs/customSentry.ts
index 9a63f466e8..e133b2b136 100644
--- a/frontend/src/libs/customSentry.ts
+++ b/frontend/src/libs/customSentry.ts
@@ -10,9 +10,12 @@ type CustomSentryMeasurementValue = {
 }
 
 export enum CustomSentryMeasurementName {
+  LOGBOOK_PRIOR_NOTIFICATION_FORM_LOADING = 'LOGBOOK_PRIOR_NOTIFICATION_FORM_LOADING',
   LOGBOOK_PRIOR_NOTIFICATION_FORM_SPINNER = 'LOGBOOK_PRIOR_NOTIFICATION_FORM_SPINNER',
+  MANUAL_PRIOR_NOTIFICATION_FORM_LOADING = 'MANUAL_PRIOR_NOTIFICATION_FORM_LOADING',
   MANUAL_PRIOR_NOTIFICATION_FORM_SPINNER = 'MANUAL_PRIOR_NOTIFICATION_FORM_SPINNER',
   PRIOR_NOTIFICATION_CARD_DOWNLOAD_BUTTON = 'PRIOR_NOTIFICATION_CARD_DOWNLOAD_BUTTON',
+  PRIOR_NOTIFICATION_LIST_BODY_LOADING = 'PRIOR_NOTIFICATION_LIST_BODY_LOADING',
   PRIOR_NOTIFICATION_LIST_BODY_SPINNER = 'PRIOR_NOTIFICATION_LIST_BODY_SPINNER'
 }
 
diff --git a/frontend/src/ui/LoadingSpinnerWall.tsx b/frontend/src/ui/LoadingSpinnerWall.tsx
index 7a773738db..c49c03ee77 100644
--- a/frontend/src/ui/LoadingSpinnerWall.tsx
+++ b/frontend/src/ui/LoadingSpinnerWall.tsx
@@ -1,14 +1,42 @@
 import { FulfillingBouncingCircleSpinner } from '@components/FulfillingBouncingCircleSpinner'
+import { customSentry, type CustomSentryMeasurementName } from '@libs/customSentry'
 import { THEME } from '@mtes-mct/monitor-ui'
+import { useEffect } from 'react'
 import styled from 'styled-components'
 
 import VesselSVG from '../features/icons/Icone_navire.svg?react'
 
 export type LoadingSpinnerWallProps = {
+  customSentryProps?:
+    | {
+        id: string
+        maxExpectedDurationInMs?: number
+        name: CustomSentryMeasurementName
+      }
+    | undefined
   isVesselShowed?: boolean
   message?: string
 }
-export function LoadingSpinnerWall({ isVesselShowed = false, message = 'Chargement...' }: LoadingSpinnerWallProps) {
+export function LoadingSpinnerWall({
+  customSentryProps,
+  isVesselShowed = false,
+  message = 'Chargement...'
+}: LoadingSpinnerWallProps) {
+  useEffect(
+    () => () => {
+      if (!customSentryProps) {
+        return
+      }
+
+      customSentry.endMeasurement(
+        customSentryProps.name,
+        customSentryProps.id,
+        customSentryProps.maxExpectedDurationInMs
+      )
+    },
+    [customSentryProps]
+  )
+
   return (
     <Wrapper data-cy="first-loader">
       <FulfillingBouncingCircleSpinner className="update-vessels" color={THEME.color.lightGray} size={48} />