diff --git a/src/main/java/uk/ac/sanger/sccp/stan/model/CytassistOverview.java b/src/main/java/uk/ac/sanger/sccp/stan/model/CytassistOverview.java
index 8c07af26..4d07c33c 100644
--- a/src/main/java/uk/ac/sanger/sccp/stan/model/CytassistOverview.java
+++ b/src/main/java/uk/ac/sanger/sccp/stan/model/CytassistOverview.java
@@ -42,6 +42,7 @@ public class CytassistOverview {
     private String visiumConcentrationValue;
     private String visiumConcentrationAverageSize;
     private String visiumConcentrationRange;
+    private LocalDateTime visiumConcentrationPerformed;
     private String latestBarcode;
     private String latestLwState;
     private String latestBioState;
@@ -289,6 +290,14 @@ public void setVisiumConcentrationRange(String visiumConcentrationRange) {
         this.visiumConcentrationRange = visiumConcentrationRange;
     }
 
+    public LocalDateTime getVisiumConcentrationPerformed() {
+        return this.visiumConcentrationPerformed;
+    }
+
+    public void setVisiumConcentrationPerformed(LocalDateTime visiumConcentrationPerformed) {
+        this.visiumConcentrationPerformed = visiumConcentrationPerformed;
+    }
+
     public String getLatestBarcode() {
         return this.latestBarcode;
     }
@@ -370,6 +379,7 @@ public String toString() {
                 .add("visiumConcentrationValue", visiumConcentrationValue)
                 .add("visiumConcentrationAverageSize", visiumConcentrationAverageSize)
                 .add("visiumConcentrationRange", visiumConcentrationRange)
+                .add("visiumConcentrationPerformed", visiumConcentrationPerformed)
                 .add("latestBarcode", latestBarcode)
                 .add("latestLwState", latestLwState)
                 .add("latestBioState", latestBioState)
diff --git a/src/main/java/uk/ac/sanger/sccp/stan/service/cytassistoverview/CytassistOverviewDataCompilerImp.java b/src/main/java/uk/ac/sanger/sccp/stan/service/cytassistoverview/CytassistOverviewDataCompilerImp.java
index 86348eb4..d5fd4aaf 100644
--- a/src/main/java/uk/ac/sanger/sccp/stan/service/cytassistoverview/CytassistOverviewDataCompilerImp.java
+++ b/src/main/java/uk/ac/sanger/sccp/stan/service/cytassistoverview/CytassistOverviewDataCompilerImp.java
@@ -420,6 +420,7 @@ && commentApplies(oc, foundSsIds)) {
                         }
                     }
                 }
+                d.row.setVisiumConcentrationPerformed(found.getPerformed());
             }
         }
     }
diff --git a/src/main/resources/db/changelog/changelog-3.14.xml b/src/main/resources/db/changelog/changelog-3.14.xml
index fca3bd0e..15e41100 100644
--- a/src/main/resources/db/changelog/changelog-3.14.xml
+++ b/src/main/resources/db/changelog/changelog-3.14.xml
@@ -106,6 +106,9 @@
             <column name="visium_concentration_range" type="VARCHAR(16)">
                 <constraints nullable="true"/>
             </column>
+            <column name="visium_concentration_performed" type="TIMESTAMP">
+                <constraints nullable="true"/>
+            </column>
             <column name="latest_barcode" type="VARCHAR(32)">
                 <constraints nullable="false"/>
             </column>
diff --git a/src/test/java/uk/ac/sanger/sccp/stan/integrationtest/TestCytassistOverview.java b/src/test/java/uk/ac/sanger/sccp/stan/integrationtest/TestCytassistOverview.java
index d6e553ab..c5aabb10 100644
--- a/src/test/java/uk/ac/sanger/sccp/stan/integrationtest/TestCytassistOverview.java
+++ b/src/test/java/uk/ac/sanger/sccp/stan/integrationtest/TestCytassistOverview.java
@@ -216,6 +216,7 @@ public void testUpdate() {
         assertEquals("70", co.getVisiumConcentrationValue());
         assertNull(co.getVisiumConcentrationAverageSize());
         assertNull(co.getVisiumConcentrationRange());
+        assertEquals(vc1.getPerformed(), co.getVisiumConcentrationPerformed());
         assertEquals(lws[5].getBarcode(), co.getLatestBarcode());
         assertEquals(Labware.State.active.toString(), co.getLatestLwState());
         assertEquals("Tissue", co.getLatestBioState());
@@ -253,6 +254,7 @@ public void testUpdate() {
         assertEquals("80", co.getVisiumConcentrationValue());
         assertEquals("75", co.getVisiumConcentrationAverageSize());
         assertEquals("1-2", co.getVisiumConcentrationRange());
+        assertEquals(vc2.getPerformed(), co.getVisiumConcentrationPerformed());
         assertEquals(lws[6].getBarcode(), co.getLatestBarcode());
         assertEquals(Labware.State.released.toString(), co.getLatestLwState());
         assertEquals(time(28), co.getLatestBarcodeReleased());
diff --git a/src/test/java/uk/ac/sanger/sccp/stan/service/cytassistoverview/TestCytassistOverviewDataCompiler.java b/src/test/java/uk/ac/sanger/sccp/stan/service/cytassistoverview/TestCytassistOverviewDataCompiler.java
index 6e4f9346..2fb5ee63 100644
--- a/src/test/java/uk/ac/sanger/sccp/stan/service/cytassistoverview/TestCytassistOverviewDataCompiler.java
+++ b/src/test/java/uk/ac/sanger/sccp/stan/service/cytassistoverview/TestCytassistOverviewDataCompiler.java
@@ -661,6 +661,7 @@ void testLoadVisiumConcentration() {
         assertEquals("50", d.row.getVisiumConcentrationValue());
         assertEquals("15", d.row.getVisiumConcentrationAverageSize());
         assertEquals("10-20", d.row.getVisiumConcentrationRange());
+        assertEquals(ops.get(0).getPerformed(), d.row.getVisiumConcentrationPerformed());
         assertThat(d.users).containsExactly(user);
         d = data.get(1);
         assertEquals("Library concentration", d.row.getVisiumConcentrationType());