diff --git a/app/models/stock_movement.py b/app/models/stock_movement.py
new file mode 100644
index 0000000..0ecbee6
--- /dev/null
+++ b/app/models/stock_movement.py
@@ -0,0 +1,22 @@
+import uuid
+from datetime import datetime
+from sqlalchemy import Column, String, DateTime, Integer, Enum, ForeignKey
+from app.database import Base
+import enum
+
+
+class MovementType(str, enum.Enum):
+    IN = "IN"
+    OUT = "OUT"
+    ADJUST = "ADJUST"
+
+
+class StockMovement(Base):
+    __tablename__ = "stock_movements"
+
+    id = Column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
+    product_id = Column(String(36), ForeignKey("products.id"), nullable=False)
+    type = Column(Enum(MovementType), nullable=False)
+    quantity = Column(Integer, nullable=False)
+    reason = Column(String(200), nullable=True)
+    created_at = Column(DateTime, default=datetime.utcnow)