diff --git a/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.grouping.pipe.ts b/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.grouping.pipe.ts
index 9c67b4ed3d2..12e6c6e65e4 100644
--- a/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.grouping.pipe.ts
+++ b/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.grouping.pipe.ts
@@ -1,6 +1,6 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { formatDate } from '../../core/utils';
-import { GridColumnDataType } from '../../data-operations/data-util';
+import { cloneArray, formatDate } from '../../core/utils';
+import { DataUtil, GridColumnDataType } from '../../data-operations/data-util';
 import { IGroupingExpression } from '../../data-operations/grouping-expression.interface';
 import { GridType } from '../common/grid.interface';
 import { IgxSorting } from '../common/strategy';
@@ -54,7 +54,8 @@ export class IgxTreeGridGroupingPipe implements PipeTransform {
                      groupKey: string,
                      childDataKey: string,
                      grid: GridType,
-                     aggregations?: ITreeGridAggregation[]
+                     aggregations?: ITreeGridAggregation[],
+                     _pipeTrigger?: number
                     ): any[] {
         if (groupingExpressions.length === 0) {
             return collection;
@@ -67,7 +68,13 @@ export class IgxTreeGridGroupingPipe implements PipeTransform {
         this.grid = grid;
 
         const result = [];
-        const groupedRecords = this.groupByMultiple(collection, groupingExpressions);
+
+        const updatedCollection = DataUtil.mergeTransactions(
+            cloneArray(collection, true),
+            grid.transactions.getAggregatedChanges(true),
+            grid.primaryKey);
+
+        const groupedRecords = this.groupByMultiple(updatedCollection, groupingExpressions);
         this.flattenGrouping(groupedRecords, groupKey,
             childDataKey, result, aggregations);
 
diff --git a/src/app/tree-grid-groupby/tree-grid-groupby.sample.html b/src/app/tree-grid-groupby/tree-grid-groupby.sample.html
index 087283e3af9..0374e7c6448 100644
--- a/src/app/tree-grid-groupby/tree-grid-groupby.sample.html
+++ b/src/app/tree-grid-groupby/tree-grid-groupby.sample.html
@@ -7,7 +7,7 @@
 
     <igx-tree-grid #grid1
         [moving]="true"
-        [data]="data | treeGridGrouping:groupingExpressions:groupKey:childDataKey:grid1:employeeAggregations"
+        [data]="data | treeGridGrouping:groupingExpressions:groupKey:childDataKey:grid1:employeeAggregations:pipeTrigger"
         selectionType="multi"
         [childDataKey]="childDataKey"
         [rowSelection]="selectionMode"
diff --git a/src/app/tree-grid-groupby/tree-grid-groupby.sample.ts b/src/app/tree-grid-groupby/tree-grid-groupby.sample.ts
index cae86705b39..048b1012a15 100644
--- a/src/app/tree-grid-groupby/tree-grid-groupby.sample.ts
+++ b/src/app/tree-grid-groupby/tree-grid-groupby.sample.ts
@@ -31,6 +31,7 @@ export class TreeGridGroupBySampleComponent implements OnInit {
     public childDataKey = 'ChildCompanies';
     public sorting = IgxGroupedTreeGridSorting.instance();
     public filteringStrategy = new TreeGridFilteringStrategy([this.groupKey]);
+    public pipeTrigger = 0;
 
     public employeeAggregations: ITreeGridAggregation[] = [{
         field: 'Employees',