diff --git a/frontend/src/oso.tsx b/frontend/src/oso.tsx
index 842dcb01af3..5f4c8502d6a 100644
--- a/frontend/src/oso.tsx
+++ b/frontend/src/oso.tsx
@@ -2,6 +2,7 @@
 
 import posthog from 'posthog-js'
 import { mount } from "@/oso-mount";
+import { Logger } from "@/utils/Logger";
 
 
 declare global {
@@ -11,14 +12,21 @@ declare global {
 }
 
 if (import.meta.env.VITE_POSTHOG_PUBLIC_API_KEY) {
+  // Read identity passed from the parent page via URL fragment to stitch events
+  // under the same distinct_id without emitting a spurious $identify event.
+  const fragment = new URLSearchParams(window.location.hash.slice(1));
+  const distinctID = fragment.get("posthogDistinctId") ?? undefined;
+  const sessionID = fragment.get("posthogSessionId") ?? undefined;
+
   posthog.init(import.meta.env.VITE_POSTHOG_PUBLIC_API_KEY, {
+    bootstrap: distinctID ? { distinctID, sessionID, isIdentifiedID: true } : undefined,
     session_recording: {
       // WARNING: Only enable this if you understand the security implications
       recordCrossOriginIframes: true,
-    }
+    },
   });
 } else {
-  console.warn("POSTHOG_PUBLIC_API_KEY not set, skipping posthog init");
+  Logger.warn("POSTHOG_PUBLIC_API_KEY not set, skipping posthog init");
 }
 
 // eslint-disable-next-line ssr-friendly/no-dom-globals-in-module-scope
@@ -28,7 +36,7 @@ if (el) {
     throw new Error("[marimo] mount config not found");
   }
   mount(window.__MARIMO_MOUNT_CONFIG__, el).catch((e) => {
-    console.error("Failed to mount marimo app", e);
+    Logger.error("Failed to mount marimo app", e);
   });
 } else {
   throw new Error("[marimo] root element not found");