diff --git a/assets/js/hooks/Mapper/components/mapRootContent/components/Connections/Connections.tsx b/assets/js/hooks/Mapper/components/mapRootContent/components/Connections/Connections.tsx
index bb8e4385..5d322945 100644
--- a/assets/js/hooks/Mapper/components/mapRootContent/components/Connections/Connections.tsx
+++ b/assets/js/hooks/Mapper/components/mapRootContent/components/Connections/Connections.tsx
@@ -196,23 +196,35 @@ export const Connections = ({ selectedConnection, onHide }: OnTheMapProps) => {
         {/* Connection Info */}
         <div className="px-2 flex flex-col gap-2">
           {/* Connection Info Row */}
-          <InfoDrawer title="Connection" rightSide>
-            <div className="flex justify-end gap-2 items-center">
-              <SystemView
-                showCustomName
-                systemId={cnInfo.source}
-                className={clsx(classes.InfoTextSize, 'select-none text-center')}
-                hideRegion
-              />
-              <span className="pi pi-angle-double-right text-stone-500 text-[15px]"></span>
-              <SystemView
-                showCustomName
-                systemId={cnInfo.target}
-                className={clsx(classes.InfoTextSize, 'select-none text-center')}
-                hideRegion
-              />
+          <div className="flex justify-between gap-2">
+            {/*Left column*/}
+            <div>
+              {isWormhole && info?.locked_at && (
+                <InfoDrawer title="Save Mass">
+                  <TimeAgo timestamp={info.locked_at} />
+                  {info.locked_by_name && <span className="text-neutral-400"> by {info.locked_by_name}</span>}
+                </InfoDrawer>
+              )}
             </div>
-          </InfoDrawer>
+            {/*Right column*/}
+            <InfoDrawer title="Connection" rightSide>
+              <div className="flex justify-end gap-2 items-center">
+                <SystemView
+                  showCustomName
+                  systemId={cnInfo.source}
+                  className={clsx(classes.InfoTextSize, 'select-none text-center')}
+                  hideRegion
+                />
+                <span className="pi pi-angle-double-right text-stone-500 text-[15px]"></span>
+                <SystemView
+                  showCustomName
+                  systemId={cnInfo.target}
+                  className={clsx(classes.InfoTextSize, 'select-none text-center')}
+                  hideRegion
+                />
+              </div>
+            </InfoDrawer>
+          </div>
 
           <div className="flex justify-between gap-2">
             {/*Left column*/}
diff --git a/assets/js/hooks/Mapper/types/connectionPassages.ts b/assets/js/hooks/Mapper/types/connectionPassages.ts
index 6cf06e1c..fb1770ab 100644
--- a/assets/js/hooks/Mapper/types/connectionPassages.ts
+++ b/assets/js/hooks/Mapper/types/connectionPassages.ts
@@ -21,6 +21,8 @@ export type PassageWithSourceTarget = {
 
 export type ConnectionInfoOutput = {
   marl_eol_time: string;
+  locked_at: string | null;
+  locked_by_name: string | null;
 };
 
 export type ConnectionOutput = {
diff --git a/lib/wanderer_app/api/map_connection.ex b/lib/wanderer_app/api/map_connection.ex
index 7951113e..2e2ccf84 100644
--- a/lib/wanderer_app/api/map_connection.ex
+++ b/lib/wanderer_app/api/map_connection.ex
@@ -20,7 +20,7 @@ defmodule WandererApp.Api.MapConnection do
   json_api do
     type "map_connections"
 
-    includes([:map])
+    includes([:map, :locked_by])
 
     default_fields([
       :solar_system_source,
@@ -32,6 +32,7 @@ defmodule WandererApp.Api.MapConnection do
       :wormhole_type,
       :count_of_passage,
       :locked,
+      :locked_at,
       :custom_info
     ])
 
@@ -274,6 +275,11 @@ defmodule WandererApp.Api.MapConnection do
       public? true
     end
 
+    attribute :locked_at, :utc_datetime_usec do
+      public? true
+      allow_nil? true
+    end
+
     attribute :custom_info, :string do
       public? true
       allow_nil? true
@@ -288,5 +294,9 @@ defmodule WandererApp.Api.MapConnection do
       attribute_writable? true
       public? true
     end
+
+    belongs_to :locked_by, WandererApp.Api.Character do
+      public? true
+    end
   end
 end
diff --git a/lib/wanderer_app/map/server/map_server_connections_impl.ex b/lib/wanderer_app/map/server/map_server_connections_impl.ex
index 80ce2540..bc6f423e 100644
--- a/lib/wanderer_app/map/server/map_server_connections_impl.ex
+++ b/lib/wanderer_app/map/server/map_server_connections_impl.ex
@@ -213,9 +213,34 @@ defmodule WandererApp.Map.Server.ConnectionsImpl do
       solar_system_target_id
     )
     |> case do
-      {:ok, %{id: connection_id}} ->
+      {:ok, %{id: connection_id} = connection} ->
         connection_mark_eol_time = get_connection_mark_eol_time(map_id, connection_id, nil)
-        {:ok, %{marl_eol_time: connection_mark_eol_time}}
+        locked_info = get_connection_locked_info(map_id, connection_id)
+
+        locked_by_name =
+          case locked_info do
+            nil ->
+              nil
+
+            %{locked_by_id: locked_by_id} ->
+              case WandererApp.Api.Character.by_id(locked_by_id) do
+                {:ok, character} -> character.name
+                _ -> nil
+              end
+          end
+
+        locked_at =
+          case locked_info do
+            nil -> nil
+            %{locked_at: locked_at} -> locked_at
+          end
+
+        {:ok,
+         %{
+           marl_eol_time: connection_mark_eol_time,
+           locked_at: locked_at,
+           locked_by_name: locked_by_name
+         }}
 
       _ ->
         {:error, :not_found}
@@ -293,8 +318,27 @@ defmodule WandererApp.Map.Server.ConnectionsImpl do
   def update_connection_locked(
         map_id,
         connection_update
-      ),
-      do: update_connection(map_id, :update_locked, [:locked], connection_update)
+      ) do
+    update_connection(map_id, :update_locked, [:locked], connection_update, fn
+      %{locked: old_locked}, %{id: connection_id, locked: new_locked} = _ ->
+        case new_locked do
+          true ->
+            if not old_locked do
+              character_id = Map.get(connection_update, :character_id)
+
+              WandererApp.Cache.put(
+                "map_#{map_id}:conn_#{connection_id}:locked_info",
+                %{locked_by_id: character_id, locked_at: DateTime.utc_now()}
+              )
+            end
+
+          _ ->
+            if old_locked do
+              WandererApp.Cache.delete("map_#{map_id}:conn_#{connection_id}:locked_info")
+            end
+        end
+    end)
+  end
 
   def update_connection_custom_info(
         map_id,
@@ -954,6 +998,16 @@ defmodule WandererApp.Map.Server.ConnectionsImpl do
     end
   end
 
+  def get_connection_locked_info(map_id, connection_id) do
+    case WandererApp.Cache.get("map_#{map_id}:conn_#{connection_id}:locked_info") do
+      nil ->
+        nil
+
+      value ->
+        value
+    end
+  end
+
   defp find_solar_system_jump(from_solar_system_id, to_solar_system_id) do
     case WandererApp.CachedInfo.get_solar_system_jump(from_solar_system_id, to_solar_system_id) do
       {:ok, jump} when not is_nil(jump) -> {:ok, [jump]}
@@ -1033,6 +1087,7 @@ defmodule WandererApp.Map.Server.ConnectionsImpl do
         })
 
         WandererApp.Cache.delete("map_#{map_id}:conn_#{connection.id}:start_time")
+        WandererApp.Cache.delete("map_#{map_id}:conn_#{connection.id}:locked_info")
 
         # Clear linked_sig_eve_id on target system when connection is deleted
         # This ensures old signatures become orphaned and won't affect future connections
diff --git a/lib/wanderer_app_web/live/map/event_handlers/map_connections_event_handler.ex b/lib/wanderer_app_web/live/map/event_handlers/map_connections_event_handler.ex
index a0a61360..e02b5a4e 100644
--- a/lib/wanderer_app_web/live/map/event_handlers/map_connections_event_handler.ex
+++ b/lib/wanderer_app_web/live/map/event_handlers/map_connections_event_handler.ex
@@ -240,6 +240,7 @@ defmodule WandererAppWeb.MapConnectionsEventHandler do
         solar_system_target_id: solar_system_target_id_int
       }
       |> Map.put_new(key_atom, value)
+      |> Map.put(:character_id, main_character_id)
     ])
 
     {:noreply, socket}
diff --git a/priv/repo/migrations/20260425000000_add_map_connection_locked_by.exs b/priv/repo/migrations/20260425000000_add_map_connection_locked_by.exs
new file mode 100644
index 00000000..0c4cf396
--- /dev/null
+++ b/priv/repo/migrations/20260425000000_add_map_connection_locked_by.exs
@@ -0,0 +1,21 @@
+defmodule WandererApp.Repo.Migrations.AddMapConnectionLockedBy do
+  @moduledoc """
+  Add locked_by and locked_at tracking to map_chain_v1 connections
+  """
+
+  use Ecto.Migration
+
+  def up do
+    alter table(:map_chain_v1) do
+      add :locked_by_id, :binary_id
+      add :locked_at, :utc_datetime_usec
+    end
+  end
+
+  def down do
+    alter table(:map_chain_v1) do
+      remove :locked_by_id
+      remove :locked_at
+    end
+  end
+end