diff --git a/components/MarketoContactForm.tsx b/components/MarketoContactForm.tsx
index 8c3705f7df..8dbcb7dedf 100644
--- a/components/MarketoContactForm.tsx
+++ b/components/MarketoContactForm.tsx
@@ -31,6 +31,23 @@ declare global {
   }
 }
 
+function applyRequiredAsterisks(formElement: HTMLElement) {
+  if (typeof formElement.querySelectorAll !== "function") {
+    return;
+  }
+
+  formElement
+    .querySelectorAll<HTMLElement>(".mktoAsterix")
+    .forEach((asterisk) => {
+      const isRequired = Boolean(asterisk.closest(".mktoRequiredField"));
+      asterisk.style.setProperty(
+        "display",
+        isRequired ? "inline" : "none",
+        "important",
+      );
+    });
+}
+
 function MarketoSuccessPanel() {
   return (
     <div className="lf-success-panel" role="status" aria-live="polite">
@@ -71,6 +88,11 @@ export function MarketoContactForm() {
       MARKETO_MUNCHKIN_ID,
       MARKETO_FORM_ID,
       (form) => {
+        const renderedForm = document.getElementById(MARKETO_FORM_ELEMENT_ID);
+        if (renderedForm) {
+          applyRequiredAsterisks(renderedForm);
+        }
+
         setIsFormLoaded(true);
 
         form.onSuccess(() => {
diff --git a/scripts/test-use-case-analytics.mjs b/scripts/test-use-case-analytics.mjs
index 7a6a724459..e5f56f9199 100644
--- a/scripts/test-use-case-analytics.mjs
+++ b/scripts/test-use-case-analytics.mjs
@@ -469,7 +469,42 @@ test("sales completion is emitted only after Marketo success and is deduplicated
       },
     },
   };
-  globalThis.document = { getElementById: () => ({ replaceChildren() {} }) };
+  const requiredAsterisk = {
+    display: null,
+    priority: null,
+    closest: (selector) =>
+      selector === ".mktoRequiredField" ? { required: true } : null,
+    style: {
+      setProperty(name, value, priority) {
+        if (name === "display") {
+          requiredAsterisk.display = value;
+          requiredAsterisk.priority = priority;
+        }
+      },
+    },
+  };
+  const optionalAsterisk = {
+    display: null,
+    priority: null,
+    closest: () => null,
+    style: {
+      setProperty(name, value, priority) {
+        if (name === "display") {
+          optionalAsterisk.display = value;
+          optionalAsterisk.priority = priority;
+        }
+      },
+    },
+  };
+  globalThis.document = {
+    getElementById: () => ({
+      replaceChildren() {},
+      querySelectorAll(selector) {
+        assert.equal(selector, ".mktoAsterix");
+        return [requiredAsterisk, optionalAsterisk];
+      },
+    }),
+  };
   const form = load(compile("components/MarketoContactForm.tsx"), (name) => {
     if (name === "react")
       return {
@@ -496,6 +531,10 @@ test("sales completion is emitted only after Marketo success and is deduplicated
   });
   try {
     form.MarketoContactForm();
+    assert.equal(requiredAsterisk.display, "inline");
+    assert.equal(requiredAsterisk.priority, "important");
+    assert.equal(optionalAsterisk.display, "none");
+    assert.equal(optionalAsterisk.priority, "important");
     assert.equal(captured.length, 0, "Loading a form is not a conversion");
     assert.equal(onSuccess({ Email: "test@example.invalid" }, ""), false);
     assert.equal(onSuccess({}, ""), false);
@@ -511,3 +550,53 @@ test("sales completion is emitted only after Marketo success and is deduplicated
     delete globalThis.document;
   }
 });
+
+test("sales completion still registers when the form stub has no querySelectorAll", () => {
+  const captured = [];
+  let onSuccess;
+  globalThis.window = {
+    MktoForms2: {
+      loadForm(_base, _id, _form, callback) {
+        callback({
+          onSuccess: (fn) => {
+            onSuccess = fn;
+          },
+        });
+      },
+    },
+  };
+  globalThis.document = { getElementById: () => ({ replaceChildren() {} }) };
+  const form = load(compile("components/MarketoContactForm.tsx"), (name) => {
+    if (name === "react")
+      return {
+        useState: (value) => [value, () => {}],
+        useRef: (value) => ({ current: value }),
+        useCallback: (fn) => fn,
+        useEffect: (fn) => fn(),
+      };
+    if (name === "react/jsx-runtime")
+      return {
+        jsx: (type, props) => ({ type, props }),
+        jsxs: (type, props) => ({ type, props }),
+      };
+    if (name === "lucide-react") return { Check: () => null };
+    if (name === "posthog-js")
+      return {
+        capture: (event, props) => captured.push({ event, props }),
+      };
+    if (name === "@/lib/ad-conversions")
+      return { reportTalkToUsConversion: () => {} };
+    if (name === "@/lib/use-case-analytics")
+      return { readUseCaseAttribution: () => attribution };
+    throw Error(name);
+  });
+  try {
+    assert.doesNotThrow(() => form.MarketoContactForm());
+    assert.equal(typeof onSuccess, "function");
+    assert.equal(onSuccess({}, ""), false);
+    assert.equal(captured[0]?.event, "sales:inquiry_completed");
+  } finally {
+    delete globalThis.window;
+    delete globalThis.document;
+  }
+});
diff --git a/style.css b/style.css
index 9e3553a71b..0de5eae135 100644
--- a/style.css
+++ b/style.css
@@ -978,8 +978,17 @@
   line-height: 1.25rem !important;
 }
 
-.lf-marketo-form .mktoAsterix {
-  display: inline !important;
+/* Marketo always emits .mktoAsterix in every label, then hides it unless
+   the field wrap has .mktoRequiredField (from the form descriptor's
+   IsRequired: true). Do not force-show every asterisk — that marks
+   optional fields such as Phone as required.
+
+   Selectors must beat the Marketo ThemeStyleOverride
+   `.lf-marketo-form .mktoAsterix { display: contents !important }` which
+   is injected after page CSS. The form id is always present; `.mktoForm`
+   is not reliably on the <form> when Forms2 finishes loading. */
+.lf-marketo-form form[id^="mktoForm_"] .mktoAsterix {
+  display: none !important;
   float: none !important;
   line-height: inherit !important;
   padding-left: 0 !important;
@@ -987,6 +996,16 @@
   color: hsl(var(--destructive)) !important;
 }
 
+.lf-marketo-form form[id^="mktoForm_"] .mktoRequiredField .mktoAsterix {
+  display: inline !important;
+}
+
+/* ThemeStyleOverride also injects " *" via ::after on required labels.
+   Suppress it so required fields do not show two marks. */
+.lf-marketo-form form[id^="mktoForm_"] .mktoRequiredField .mktoLabel::after {
+  content: none !important;
+}
+
 .lf-marketo-form input[type="text"],
 .lf-marketo-form input[type="email"],
 .lf-marketo-form input[type="tel"],