diff --git a/__tests__/actions/story-claim.test.ts b/__tests__/actions/story-claim.test.ts
index 94b6e57..6fba5e5 100644
--- a/__tests__/actions/story-claim.test.ts
+++ b/__tests__/actions/story-claim.test.ts
@@ -37,7 +37,7 @@ import {
   claimAllUnassignedInActiveSprintAction,
 } from '@/actions/stories'
 
-const mockPrisma = prisma as {
+const mockPrisma = prisma as unknown as {
   story: {
     findFirst: ReturnType<typeof vi.fn>
     update: ReturnType<typeof vi.fn>
diff --git a/app/(app)/products/[id]/sprint/page.tsx b/app/(app)/products/[id]/sprint/page.tsx
index 620f0d3..bff7432 100644
--- a/app/(app)/products/[id]/sprint/page.tsx
+++ b/app/(app)/products/[id]/sprint/page.tsx
@@ -5,7 +5,7 @@ import { SessionData, sessionOptions } from '@/lib/session'
 import { prisma } from '@/lib/prisma'
 import { SprintBoardClient } from '@/components/sprint/sprint-board-client'
 import { SprintHeader } from '@/components/sprint/sprint-header'
-import type { SprintStory, PbiWithStories } from '@/components/sprint/sprint-backlog'
+import type { SprintStory, PbiWithStories, ProductMember } from '@/components/sprint/sprint-backlog'
 import type { Task } from '@/components/sprint/task-list'
 import Link from 'next/link'
 
@@ -27,16 +27,27 @@ export default async function SprintBoardPage({ params }: Props) {
   })
   if (!sprint) redirect(`/products/${id}`)
 
-  // Sprint stories with full task data
-  const sprintStories = await prisma.story.findMany({
-    where: { sprint_id: sprint.id },
-    orderBy: { sort_order: 'asc' },
-    include: {
-      tasks: {
-        orderBy: [{ priority: 'asc' }, { sort_order: 'asc' }],
+  // Sprint stories with full task data and assignee
+  const [sprintStories, productMembers] = await Promise.all([
+    prisma.story.findMany({
+      where: { sprint_id: sprint.id },
+      orderBy: { sort_order: 'asc' },
+      include: {
+        tasks: { orderBy: [{ priority: 'asc' }, { sort_order: 'asc' }] },
+        assignee: { select: { id: true, username: true } },
       },
-    },
-  })
+    }),
+    prisma.productMember.findMany({
+      where: { product_id: id },
+      include: { user: { select: { id: true, username: true } } },
+    }),
+  ])
+
+  // All members who can be assigned: owner + product members
+  const members: ProductMember[] = [
+    { userId: product.user_id, username: (await prisma.user.findUnique({ where: { id: product.user_id }, select: { username: true } }))?.username ?? 'Eigenaar' },
+    ...productMembers.map(m => ({ userId: m.user_id, username: m.user.username })),
+  ]
 
   const sprintStoryItems: SprintStory[] = sprintStories.map(s => ({
     id: s.id,
@@ -45,6 +56,8 @@ export default async function SprintBoardPage({ params }: Props) {
     status: s.status,
     taskCount: s.tasks.length,
     doneCount: s.tasks.filter(t => t.status === 'DONE').length,
+    assignee_id: s.assignee_id,
+    assignee_username: s.assignee?.username ?? null,
   }))
 
   const tasksByStory: Record<string, Task[]> = {}
@@ -83,6 +96,8 @@ export default async function SprintBoardPage({ params }: Props) {
         status: s.status,
         taskCount: 0,
         doneCount: 0,
+        assignee_id: null,
+        assignee_username: null,
       })),
     }))
 
@@ -108,6 +123,8 @@ export default async function SprintBoardPage({ params }: Props) {
           sprintStoryIdList={sprintStoryIdList}
           tasksByStory={tasksByStory}
           isDemo={isDemo}
+          currentUserId={session.userId}
+          members={members}
         />
       </div>
 
diff --git a/components/sprint/sprint-backlog.tsx b/components/sprint/sprint-backlog.tsx
index 143e90d..fbab7ea 100644
--- a/components/sprint/sprint-backlog.tsx
+++ b/components/sprint/sprint-backlog.tsx
@@ -1,13 +1,21 @@
 'use client'
 
-import { useState } from 'react'
-import { Trash2 } from 'lucide-react'
+import { useState, useTransition } from 'react'
+import { Trash2, MoreHorizontal } from 'lucide-react'
 import { useDroppable, useDraggable } from '@dnd-kit/core'
 import { SortableContext, useSortable, verticalListSortingStrategy } from '@dnd-kit/sortable'
 import { CSS } from '@dnd-kit/utilities'
+import { toast } from 'sonner'
 import { Badge } from '@/components/ui/badge'
+import {
+  DropdownMenu, DropdownMenuContent, DropdownMenuItem,
+  DropdownMenuTrigger, DropdownMenuSub, DropdownMenuSubTrigger, DropdownMenuSubContent,
+} from '@/components/ui/dropdown-menu'
 import { PanelNavBar } from '@/components/shared/panel-nav-bar'
+import { UserAvatar } from '@/components/shared/user-avatar'
+import { DemoTooltip } from '@/components/shared/demo-tooltip'
 import { useSprintStore } from '@/stores/sprint-store'
+import { claimStoryAction, unclaimStoryAction, reassignStoryAction } from '@/actions/stories'
 import { cn } from '@/lib/utils'
 
 const STATUS_COLORS: Record<string, string> = {
@@ -32,6 +40,13 @@ export interface SprintStory {
   status: string
   taskCount: number
   doneCount: number
+  assignee_id: string | null
+  assignee_username: string | null
+}
+
+export interface ProductMember {
+  userId: string
+  username: string
 }
 
 export interface PbiWithStories {
@@ -44,15 +59,62 @@ export interface PbiWithStories {
 
 function SortableSprintRow({
   story, isDemo, onRemove, onSelect, isSelected,
+  currentUserId, productId, members, onAssigneeChange,
 }: {
   story: SprintStory
   isDemo: boolean
   onRemove: () => void
   onSelect: () => void
   isSelected: boolean
+  currentUserId: string
+  productId: string
+  members: ProductMember[]
+  onAssigneeChange: (storyId: string, id: string | null, username: string | null) => void
 }) {
   const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({ id: story.id })
   const style = { transform: CSS.Transform.toString(transform), transition, opacity: isDragging ? 0.4 : 1 }
+  const [, startTransition] = useTransition()
+
+  function handleClaim(e: React.MouseEvent) {
+    e.stopPropagation()
+    const me = members.find(m => m.userId === currentUserId)
+    onAssigneeChange(story.id, currentUserId, me?.username ?? null)
+    startTransition(async () => {
+      const result = await claimStoryAction(story.id, productId)
+      if (!result.success) {
+        onAssigneeChange(story.id, story.assignee_id, story.assignee_username)
+        toast.error(result.error ?? 'Claimen mislukt')
+      } else {
+        toast.success('Story geclaimd')
+      }
+    })
+  }
+
+  function handleUnclaim(e: React.MouseEvent) {
+    e.stopPropagation()
+    onAssigneeChange(story.id, null, null)
+    startTransition(async () => {
+      const result = await unclaimStoryAction(story.id, productId)
+      if (!result.success) {
+        onAssigneeChange(story.id, story.assignee_id, story.assignee_username)
+        toast.error(result.error ?? 'Teruggeven mislukt')
+      }
+    })
+  }
+
+  function handleReassign(e: React.MouseEvent, targetUserId: string, targetUsername: string) {
+    e.stopPropagation()
+    onAssigneeChange(story.id, targetUserId, targetUsername)
+    startTransition(async () => {
+      const result = await reassignStoryAction(story.id, productId, targetUserId)
+      if (!result.success) {
+        onAssigneeChange(story.id, story.assignee_id, story.assignee_username)
+        toast.error(result.error ?? 'Toewijzen mislukt')
+      } else {
+        toast.success(`Toegewezen aan ${targetUsername}`)
+      }
+    })
+  }
 
   return (
     <div
@@ -60,7 +122,7 @@ function SortableSprintRow({
       style={style}
       onClick={onSelect}
       className={cn(
-        'group flex items-center gap-3 px-4 py-2.5 border-b border-border cursor-pointer transition-colors',
+        'group flex items-start gap-3 px-4 py-2.5 border-b border-border cursor-pointer transition-colors',
         isSelected
           ? 'bg-primary-container text-primary-container-foreground'
           : 'hover:bg-surface-container'
@@ -71,7 +133,7 @@ function SortableSprintRow({
           {...attributes}
           {...listeners}
           aria-label="Versleep om te sorteren of naar Product Backlog"
-          className="text-muted-foreground cursor-grab active:cursor-grabbing shrink-0 select-none text-sm"
+          className="text-muted-foreground cursor-grab active:cursor-grabbing shrink-0 select-none text-sm mt-0.5"
           onClick={e => e.stopPropagation()}
         >
           ⠿
@@ -85,16 +147,58 @@ function SortableSprintRow({
           </Badge>
           <span className="text-xs text-muted-foreground">{story.doneCount}/{story.taskCount} klaar</span>
         </div>
+        <div className="flex items-center gap-1.5 mt-1">
+          {story.assignee_id ? (
+            <>
+              <UserAvatar userId={story.assignee_id} username={story.assignee_username ?? '?'} size="xs" />
+              <span className="text-xs text-muted-foreground truncate">{story.assignee_username}</span>
+            </>
+          ) : (
+            <span className="text-xs text-muted-foreground italic">Niet geclaimd</span>
+          )}
+        </div>
+      </div>
+      <div className="flex items-center gap-1 shrink-0 mt-0.5" onClick={e => e.stopPropagation()}>
+        <DemoTooltip show={isDemo}>
+          <DropdownMenu>
+            <DropdownMenuTrigger
+              disabled={isDemo}
+              className="opacity-0 group-hover:opacity-100 text-muted-foreground hover:text-foreground p-0.5 rounded bg-transparent border-0 cursor-pointer"
+              aria-label="Story opties"
+            >
+              <MoreHorizontal size={14} />
+            </DropdownMenuTrigger>
+            <DropdownMenuContent align="end" onClick={e => e.stopPropagation()}>
+              {story.assignee_id !== currentUserId && (
+                <DropdownMenuItem onClick={handleClaim}>Pak op</DropdownMenuItem>
+              )}
+              {story.assignee_id && (
+                <DropdownMenuItem onClick={handleUnclaim}>Geef terug aan team</DropdownMenuItem>
+              )}
+              <DropdownMenuSub>
+                <DropdownMenuSubTrigger>Wijs toe aan</DropdownMenuSubTrigger>
+                <DropdownMenuSubContent>
+                  {members.map(m => (
+                    <DropdownMenuItem key={m.userId} onClick={e => handleReassign(e, m.userId, m.username)}>
+                      <UserAvatar userId={m.userId} username={m.username} size="xs" />
+                      <span>{m.username}</span>
+                    </DropdownMenuItem>
+                  ))}
+                </DropdownMenuSubContent>
+              </DropdownMenuSub>
+            </DropdownMenuContent>
+          </DropdownMenu>
+        </DemoTooltip>
+        {!isDemo && (
+          <button
+            onClick={e => { e.stopPropagation(); onRemove() }}
+            className="opacity-0 group-hover:opacity-100 text-muted-foreground hover:text-error"
+            aria-label="Verwijder uit sprint"
+          >
+            <Trash2 size={14} />
+          </button>
+        )}
       </div>
-      {!isDemo && (
-        <button
-          onClick={e => { e.stopPropagation(); onRemove() }}
-          className="opacity-0 group-hover:opacity-100 text-muted-foreground hover:text-error shrink-0"
-          aria-label="Verwijder uit sprint"
-        >
-          <Trash2 size={14} />
-        </button>
-      )}
     </div>
   )
 }
@@ -106,9 +210,16 @@ interface SprintBacklogLeftProps {
   onRemove: (storyId: string) => void
   onSelect: (storyId: string) => void
   selectedStoryId: string | null
+  currentUserId: string
+  productId: string
+  members: ProductMember[]
+  onAssigneeChange: (storyId: string, id: string | null, username: string | null) => void
 }
 
-export function SprintBacklogLeft({ sprintId, stories, isDemo, onRemove, onSelect, selectedStoryId }: SprintBacklogLeftProps) {
+export function SprintBacklogLeft({
+  sprintId, stories, isDemo, onRemove, onSelect, selectedStoryId,
+  currentUserId, productId, members, onAssigneeChange,
+}: SprintBacklogLeftProps) {
   const { sprintStoryOrder } = useSprintStore()
   const { setNodeRef, isOver } = useDroppable({ id: 'sprint-zone' })
 
@@ -143,6 +254,10 @@ export function SprintBacklogLeft({ sprintId, stories, isDemo, onRemove, onSelec
                 onRemove={() => onRemove(story.id)}
                 onSelect={() => onSelect(story.id)}
                 isSelected={selectedStoryId === story.id}
+                currentUserId={currentUserId}
+                productId={productId}
+                members={members}
+                onAssigneeChange={onAssigneeChange}
               />
             ))}
           </SortableContext>
diff --git a/components/sprint/sprint-board-client.tsx b/components/sprint/sprint-board-client.tsx
index 3c064d2..9bb98ab 100644
--- a/components/sprint/sprint-board-client.tsx
+++ b/components/sprint/sprint-board-client.tsx
@@ -9,7 +9,7 @@ import { sortableKeyboardCoordinates, arrayMove } from '@dnd-kit/sortable'
 import { toast } from 'sonner'
 import { TriplePane } from '@/components/split-pane/triple-pane'
 import { SprintBacklogLeft, SprintBacklogRight } from './sprint-backlog'
-import type { SprintStory, PbiWithStories } from './sprint-backlog'
+import type { SprintStory, PbiWithStories, ProductMember } from './sprint-backlog'
 import { TaskList } from './task-list'
 import type { Task } from './task-list'
 import { useSprintStore } from '@/stores/sprint-store'
@@ -27,6 +27,8 @@ interface SprintBoardClientProps {
   sprintStoryIdList: string[]
   tasksByStory: Record<string, Task[]>
   isDemo: boolean
+  currentUserId: string
+  members: ProductMember[]
 }
 
 export function SprintBoardClient({
@@ -37,6 +39,8 @@ export function SprintBoardClient({
   sprintStoryIdList,
   tasksByStory,
   isDemo,
+  currentUserId,
+  members,
 }: SprintBoardClientProps) {
   const [sprintStories, setSprintStories] = useState<SprintStory[]>(stories)
   const [sprintStoryIds, setSprintStoryIds] = useState<Set<string>>(() => new Set(sprintStoryIdList))
@@ -161,6 +165,12 @@ export function SprintBoardClient({
     })
   }
 
+  function handleAssigneeChange(storyId: string, assigneeId: string | null, assigneeUsername: string | null) {
+    setSprintStories(prev =>
+      prev.map(s => s.id === storyId ? { ...s, assignee_id: assigneeId, assignee_username: assigneeUsername } : s)
+    )
+  }
+
   function handleRemove(storyId: string) {
     const storyData = sprintStories.find(s => s.id === storyId)
     setSprintStoryIds(prev => { const n = new Set(prev); n.delete(storyId); return n })
@@ -208,6 +218,10 @@ export function SprintBoardClient({
             onRemove={handleRemove}
             onSelect={setSelectedStoryId}
             selectedStoryId={selectedStoryId}
+            currentUserId={currentUserId}
+            productId={productId}
+            members={members}
+            onAssigneeChange={handleAssigneeChange}
           />
         }
         right={