diff --git a/scripts/rollup/build.js b/scripts/rollup/build.js
index 0851ea3b044..1ee8328f020 100644
--- a/scripts/rollup/build.js
+++ b/scripts/rollup/build.js
@@ -470,11 +470,10 @@ function getPlugins(
       // I'm going to port "art" to ES modules to avoid this problem.
       // Please don't enable this for anything else!
       isUMDBundle && entry === 'react-art' && commonjs(),
-      // License and haste headers, top-level `if` blocks.
       {
-        name: 'license-and-headers',
+        name: 'top-level-definitions',
         renderChunk(source) {
-          return Wrappers.wrapBundle(
+          return Wrappers.wrapWithTopLevelDefinitions(
             source,
             bundleType,
             globalName,
@@ -484,6 +483,21 @@ function getPlugins(
           );
         },
       },
+      // License and haste headers for artifacts with sourcemaps
+      // For artifacts with sourcemaps we apply these headers
+      // before passing sources to the Closure compiler, which will be building sourcemaps
+      needsSourcemaps && {
+        name: 'license-and-signature-header-for-artifacts-with-sourcemaps',
+        renderChunk(source) {
+          return Wrappers.wrapWithLicenseHeader(
+            source,
+            bundleType,
+            globalName,
+            filename,
+            moduleType
+          );
+        },
+      },
       // Apply dead code elimination and/or minification.
       // closure doesn't yet support leaving ESM imports intact
       needsMinifiedByClosure &&
@@ -527,7 +541,7 @@ function getPlugins(
         }),
       needsSourcemaps && {
         name: 'generate-prod-bundle-sourcemaps',
-        async renderChunk(codeAfterLicense, chunk, options, meta) {
+        async renderChunk(minifiedCodeWithChangedHeader, chunk, options, meta) {
           // We want to generate a sourcemap that shows the production bundle source
           // as it existed before Closure Compiler minified that chunk, rather than
           // showing the "original" individual source files. This better shows
@@ -583,7 +597,7 @@ function getPlugins(
 
           // Add the sourcemap URL to the actual bundle, so that tools pick it up
           const sourceWithMappingUrl =
-            codeAfterLicense +
+            minifiedCodeWithChangedHeader +
             `\n//# sourceMappingURL=${finalSourcemapFilename}`;
 
           return {
@@ -592,6 +606,21 @@ function getPlugins(
           };
         },
       },
+      // License and haste headers for artifacts without sourcemaps
+      // Primarily used for FB-artifacts, which should preserve specific format of the header
+      // Which potentially can be changed by Closure minification
+      !needsSourcemaps && {
+        name: 'license-and-signature-header-for-artifacts-without-sourcemaps',
+        renderChunk(source) {
+          return Wrappers.wrapWithLicenseHeader(
+            source,
+            bundleType,
+            globalName,
+            filename,
+            moduleType
+          );
+        },
+      },
       // Record bundle size.
       sizes({
         getSize: (size, gzip) => {
diff --git a/scripts/rollup/wrappers.js b/scripts/rollup/wrappers.js
index 0b30e3b9298..f8202d8ad9a 100644
--- a/scripts/rollup/wrappers.js
+++ b/scripts/rollup/wrappers.js
@@ -53,7 +53,178 @@ const license = ` * Copyright (c) Meta Platforms, Inc. and affiliates.
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.`;
 
-const wrappers = {
+const topLevelDefinitionWrappers = {
+  /***************** NODE_ES2015 *****************/
+  [NODE_ES2015](source, globalName, filename, moduleType) {
+    return `'use strict';
+
+${source}`;
+  },
+
+  /***************** ESM_DEV *****************/
+  [ESM_DEV](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /***************** ESM_PROD *****************/
+  [ESM_PROD](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /***************** BUN_DEV *****************/
+  [BUN_DEV](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /***************** BUN_PROD *****************/
+  [BUN_PROD](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /***************** UMD_DEV *****************/
+  [UMD_DEV](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /***************** UMD_PROD *****************/
+  [UMD_PROD](source, globalName, filename, moduleType) {
+    return `(function(){${source}})();`;
+  },
+
+  /***************** UMD_PROFILING *****************/
+  [UMD_PROFILING](source, globalName, filename, moduleType) {
+    return `(function(){${source}})();`;
+  },
+
+  /***************** NODE_DEV *****************/
+  [NODE_DEV](source, globalName, filename, moduleType) {
+    return `'use strict';
+
+if (process.env.NODE_ENV !== "production") {
+  (function() {
+${source}
+  })();
+}`;
+  },
+
+  /***************** NODE_PROD *****************/
+  [NODE_PROD](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /***************** NODE_PROFILING *****************/
+  [NODE_PROFILING](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /****************** FB_WWW_DEV ******************/
+  [FB_WWW_DEV](source, globalName, filename, moduleType) {
+    return `'use strict';
+
+if (__DEV__) {
+  (function() {
+${source}
+  })();
+}`;
+  },
+
+  /****************** FB_WWW_PROD ******************/
+  [FB_WWW_PROD](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /****************** FB_WWW_PROFILING ******************/
+  [FB_WWW_PROFILING](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /****************** RN_OSS_DEV ******************/
+  [RN_OSS_DEV](source, globalName, filename, moduleType) {
+    return `'use strict';
+
+if (__DEV__) {
+  (function() {
+${source}
+  })();
+}`;
+  },
+
+  /****************** RN_OSS_PROD ******************/
+  [RN_OSS_PROD](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /****************** RN_OSS_PROFILING ******************/
+  [RN_OSS_PROFILING](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /****************** RN_FB_DEV ******************/
+  [RN_FB_DEV](source, globalName, filename, moduleType) {
+    return `'use strict';
+
+if (__DEV__) {
+  (function() {
+${source}
+  })();
+}`;
+  },
+
+  /****************** RN_FB_PROD ******************/
+  [RN_FB_PROD](source, globalName, filename, moduleType) {
+    return source;
+  },
+
+  /****************** RN_FB_PROFILING ******************/
+  [RN_FB_PROFILING](source, globalName, filename, moduleType) {
+    return source;
+  },
+};
+
+const reconcilerWrappers = {
+  /***************** NODE_DEV (reconciler only) *****************/
+  [NODE_DEV](source, globalName, filename, moduleType) {
+    return `'use strict';
+
+if (process.env.NODE_ENV !== "production") {
+  module.exports = function $$$reconciler($$$config) {
+    var exports = {};
+${source}
+    return exports;
+  };
+  module.exports.default = module.exports;
+  Object.defineProperty(module.exports, "__esModule", { value: true });
+}
+`;
+  },
+
+  /***************** NODE_PROD (reconciler only) *****************/
+  [NODE_PROD](source, globalName, filename, moduleType) {
+    return `module.exports = function $$$reconciler($$$config) {
+
+    var exports = {};
+${source}
+    return exports;
+};
+module.exports.default = module.exports;
+Object.defineProperty(module.exports, "__esModule", { value: true });
+`;
+  },
+
+  /***************** NODE_PROFILING (reconciler only) *****************/
+  [NODE_PROFILING](source, globalName, filename, moduleType) {
+    return `module.exports = function $$$reconciler($$$config) {
+    var exports = {};
+${source}
+    return exports;
+};
+module.exports.default = module.exports;
+Object.defineProperty(module.exports, "__esModule", { value: true });
+`;
+  },
+};
+
+const licenseHeaderWrappers = {
   /***************** NODE_ES2015 *****************/
   [NODE_ES2015](source, globalName, filename, moduleType) {
     return `/**
@@ -63,8 +234,6 @@ const wrappers = {
 ${license}
  */
 
-'use strict';
-
 ${source}`;
   },
 
@@ -107,7 +276,7 @@ ${source}`;
   /***************** BUN_PROD *****************/
   [BUN_PROD](source, globalName, filename, moduleType) {
     return `/**
-* @license React
+ * @license React
  * ${filename}
  *
 ${license}
@@ -124,6 +293,7 @@ ${source}`;
  *
 ${license}
  */
+
 ${source}`;
   },
 
@@ -135,7 +305,8 @@ ${source}`;
  *
 ${license}
  */
-(function(){${source}})();`;
+
+${source}`;
   },
 
   /***************** UMD_PROFILING *****************/
@@ -146,7 +317,8 @@ ${license}
  *
 ${license}
  */
-(function(){${source}})();`;
+
+${source}`;
   },
 
   /***************** NODE_DEV *****************/
@@ -158,13 +330,7 @@ ${license}
 ${license}
  */
 
-'use strict';
-
-if (process.env.NODE_ENV !== "production") {
-  (function() {
-${source}
-  })();
-}`;
+${source}`;
   },
 
   /***************** NODE_PROD *****************/
@@ -175,6 +341,7 @@ ${source}
  *
 ${license}
  */
+
 ${source}`;
   },
 
@@ -186,13 +353,13 @@ ${source}`;
  *
 ${license}
  */
+
 ${source}`;
   },
 
   /****************** FB_WWW_DEV ******************/
   [FB_WWW_DEV](source, globalName, filename, moduleType) {
     return `/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -201,19 +368,12 @@ ${license}
  * @preserve-invariant-messages
  */
 
-'use strict';
-
-if (__DEV__) {
-  (function() {
-${source}
-  })();
-}`;
+${source}`;
   },
 
   /****************** FB_WWW_PROD ******************/
   [FB_WWW_PROD](source, globalName, filename, moduleType) {
     return `/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -228,7 +388,6 @@ ${source}`;
   /****************** FB_WWW_PROFILING ******************/
   [FB_WWW_PROFILING](source, globalName, filename, moduleType) {
     return `/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -243,7 +402,6 @@ ${source}`;
   /****************** RN_OSS_DEV ******************/
   [RN_OSS_DEV](source, globalName, filename, moduleType) {
     return signFile(`/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -253,19 +411,12 @@ ${license}
  * ${getSigningToken()}
  */
 
-'use strict';
-
-if (__DEV__) {
-  (function() {
-${source}
-  })();
-}`);
+${source}`);
   },
 
   /****************** RN_OSS_PROD ******************/
   [RN_OSS_PROD](source, globalName, filename, moduleType) {
     return signFile(`/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -281,7 +432,6 @@ ${source}`);
   /****************** RN_OSS_PROFILING ******************/
   [RN_OSS_PROFILING](source, globalName, filename, moduleType) {
     return signFile(`/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -297,7 +447,6 @@ ${source}`);
   /****************** RN_FB_DEV ******************/
   [RN_FB_DEV](source, globalName, filename, moduleType) {
     return signFile(`/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -306,19 +455,12 @@ ${license}
  * ${getSigningToken()}
  */
 
-'use strict';
-
-if (__DEV__) {
-  (function() {
-${source}
-  })();
-}`);
+${source}`);
   },
 
   /****************** RN_FB_PROD ******************/
   [RN_FB_PROD](source, globalName, filename, moduleType) {
     return signFile(`/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -333,7 +475,6 @@ ${source}`);
   /****************** RN_FB_PROFILING ******************/
   [RN_FB_PROFILING](source, globalName, filename, moduleType) {
     return signFile(`/**
- * @preserve
 ${license}
  *
  * @noflow
@@ -346,69 +487,7 @@ ${source}`);
   },
 };
 
-const reconcilerWrappers = {
-  /***************** NODE_DEV (reconciler only) *****************/
-  [NODE_DEV](source, globalName, filename, moduleType) {
-    return `/**
- * @license React
- * ${filename}
- *
-${license}
- */
-
-'use strict';
-
-if (process.env.NODE_ENV !== "production") {
-  module.exports = function $$$reconciler($$$config) {
-    var exports = {};
-${source}
-    return exports;
-  };
-  module.exports.default = module.exports;
-  Object.defineProperty(module.exports, "__esModule", { value: true });
-}
-`;
-  },
-
-  /***************** NODE_PROD (reconciler only) *****************/
-  [NODE_PROD](source, globalName, filename, moduleType) {
-    return `/**
- * @license React
- * ${filename}
- *
-${license}
- */
-module.exports = function $$$reconciler($$$config) {
-
-    var exports = {};
-${source}
-    return exports;
-};
-module.exports.default = module.exports;
-Object.defineProperty(module.exports, "__esModule", { value: true });
-`;
-  },
-
-  /***************** NODE_PROFILING (reconciler only) *****************/
-  [NODE_PROFILING](source, globalName, filename, moduleType) {
-    return `/**
- * @license React
- * ${filename}
- *
-${license}
- */
-module.exports = function $$$reconciler($$$config) {
-    var exports = {};
-${source}
-    return exports;
-};
-module.exports.default = module.exports;
-Object.defineProperty(module.exports, "__esModule", { value: true });
-`;
-  },
-};
-
-function wrapBundle(
+function wrapWithTopLevelDefinitions(
   source,
   bundleType,
   globalName,
@@ -457,17 +536,42 @@ function wrapBundle(
         `Unsupported build type for the reconciler package: ${bundleType}.`
       );
     }
+
     return wrapper(source, globalName, filename, moduleType);
   }
 
   // All the other packages.
-  const wrapper = wrappers[bundleType];
+  const wrapper = topLevelDefinitionWrappers[bundleType];
   if (typeof wrapper !== 'function') {
     throw new Error(`Unsupported build type: ${bundleType}.`);
   }
+
+  return wrapper(source, globalName, filename, moduleType);
+}
+
+function wrapWithLicenseHeader(
+  source,
+  bundleType,
+  globalName,
+  filename,
+  moduleType
+) {
+  if (bundleType === BROWSER_SCRIPT) {
+    // Bundles of type BROWSER_SCRIPT get sent straight to the browser without
+    // additional processing. So we should exclude any extra wrapper comments.
+    return source;
+  }
+
+  // All the other packages.
+  const wrapper = licenseHeaderWrappers[bundleType];
+  if (typeof wrapper !== 'function') {
+    throw new Error(`Unsupported build type: ${bundleType}.`);
+  }
+
   return wrapper(source, globalName, filename, moduleType);
 }
 
 module.exports = {
-  wrapBundle,
+  wrapWithTopLevelDefinitions,
+  wrapWithLicenseHeader,
 };