diff --git a/tom_targets/sharing.py b/tom_targets/sharing.py
index 8dea14260..8f9b3a311 100644
--- a/tom_targets/sharing.py
+++ b/tom_targets/sharing.py
@@ -1,10 +1,11 @@
+from tom_targets.base_models import get_target_model_app_label, BaseTarget
 import requests
 
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 
 from tom_targets.serializers import TargetSerializer
-from tom_targets.models import PersistentShare
+from tom_targets.models import PersistentShare, get_target_model_class
 from tom_dataproducts.sharing import (share_data_with_tom,
                                       get_destination_target, sharing_feedback_converter)
 
@@ -37,6 +38,20 @@ def continuous_share_data(target, reduced_datums):
         share_data_with_tom(share_destination, None, None, None, selected_data=reduced_datum_pks)
 
 
+def custom_target_to_extras(target_id) -> list[dict]:
+    target_app_label = get_target_model_app_label()
+    extra_fields = []
+    if target_app_label != 'tom_targets':
+        target = get_target_model_class().objects.get(pk=target_id)
+        for field in target._meta.get_fields():
+            if field not in BaseTarget._meta.get_fields() and field.name not in ['id', 'basetarget_ptr']:
+                value = getattr(target, field.name, None)
+                if value is not None:
+                    extra_fields.append({'key': field.name, 'value': str(value)})
+
+    return extra_fields
+
+
 def share_target_with_tom(share_destination, form_data, target_lists=()):
     """
     Share a target with a remote TOM.
@@ -76,6 +91,11 @@ def share_target_with_tom(share_destination, form_data, target_lists=()):
     if destination_target_id is None:
         # If target is not in Destination, serialize and create new target.
         serialized_target = TargetSerializer(form_data['target']).data
+        # If the shared target is a custom model custom fields should still be shared.
+        # Because the destination TOM might not have the same fields, we convert them to
+        # target extras.
+        extra_extras = custom_target_to_extras(serialized_target['id'])
+        serialized_target['targetextra_set'].extend(extra_extras)
         # Remove local User Groups
         serialized_target['groups'] = []
         # Add target lists
diff --git a/tom_targets/templates/tom_targets/target_share.html b/tom_targets/templates/tom_targets/target_share.html
index e191afcf2..de771fa00 100644
--- a/tom_targets/templates/tom_targets/target_share.html
+++ b/tom_targets/templates/tom_targets/target_share.html
@@ -23,7 +23,7 @@ <h3> Share <a href="{% url 'targets:detail' pk=target.id %}" title="Back">{{ tar
   <div class="tab-pane active" id="share">
     <div class="col-md-12">
       <form method="post" class="form" id='target-share-form'>
-        <div class="row" style="padding-inline:1rem">
+        <div class="row align-items-end" style="padding-inline:1rem">
           <div class="col-sm-3">
             {% bootstrap_field form.share_destination %}
           </div>
@@ -31,8 +31,8 @@ <h3> Share <a href="{% url 'targets:detail' pk=target.id %}" title="Back">{{ tar
             {% bootstrap_field form.share_title %}
           </div>
           <div class="col-sm-1">
-            <input type="submit" class="btn btn-primary" formaction="{% url 'targets:share' pk=target.id %}"
-              id="submit_target" value="Submit" name="share_target_form" style="position:absolute; bottom:1rem"
+            <input type="submit" class="btn btn-primary mb-3" formaction="{% url 'targets:share' pk=target.id %}"
+              id="submit_target" value="Submit" name="share_target_form"
               onclick="setTarget('')">
           </div>
         </div>
diff --git a/tom_targets/templatetags/targets_extras.py b/tom_targets/templatetags/targets_extras.py
index 0f1effe49..3daa97322 100644
--- a/tom_targets/templatetags/targets_extras.py
+++ b/tom_targets/templatetags/targets_extras.py
@@ -21,7 +21,7 @@
 
 from tom_observations.utils import get_sidereal_visibility
 from tom_targets.base_models import BaseTarget
-from tom_targets.models import Target, TargetExtra, TargetList
+from tom_targets.models import Target, TargetExtra, TargetList, PersistentShare
 from tom_targets.forms import TargetVisibilityForm, PersistentShareForm
 from tom_targets.permissions import targets_for_user
 
@@ -473,10 +473,10 @@ def persistent_share_table(context, target):
     Returns a partial for a table of persistent shares, used in persistent share management forms
     """
     request = context['request']
-    persistentshares = get_objects_for_user(request.user, f'{Target._meta.app_label}.view_persistentshare')
+    persistentshares = get_objects_for_user(request.user, f'{PersistentShare._meta.app_label}.view_persistentshare')
     if target:
         persistentshares = persistentshares.filter(target__pk=target.pk)
-    can_delete = request.user.has_perm(f'{Target._meta.app_label}.delete_persistentshare')
+    can_delete = request.user.has_perm(f'{PersistentShare._meta.app_label}.delete_persistentshare')
     return {'persistentshares': persistentshares, 'target': target, 'can_delete': can_delete}
 
 
@@ -486,7 +486,7 @@ def create_persistent_share(context, target):
     Returns a partial for a creation form for creating persistent shares
     """
     request = context['request']
-    if request.user.has_perm(f'{Target._meta.app_label}.add_persistentshare'):
+    if request.user.has_perm(f'{PersistentShare._meta.app_label}.add_persistentshare'):
         if target:
             form = PersistentShareForm(target_id=target.pk)
         else: