diff --git a/android/Torchchat/app/build.gradle.kts b/android/Torchchat/app/build.gradle.kts
index 1001c9f81..a27f563a5 100644
--- a/android/Torchchat/app/build.gradle.kts
+++ b/android/Torchchat/app/build.gradle.kts
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 plugins {
     id("com.android.application")
 }
diff --git a/android/Torchchat/app/proguard-rules.pro b/android/Torchchat/app/proguard-rules.pro
index 481bb4348..8a7c18826 100644
--- a/android/Torchchat/app/proguard-rules.pro
+++ b/android/Torchchat/app/proguard-rules.pro
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
+
 # Add project specific ProGuard rules here.
 # You can control the set of applied configuration files using the
 # proguardFiles setting in build.gradle.
@@ -18,4 +25,4 @@
 
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
-#-renamesourcefileattribute SourceFile
\ No newline at end of file
+#-renamesourcefileattribute SourceFile
diff --git a/android/Torchchat/build.gradle.kts b/android/Torchchat/build.gradle.kts
index cc9db8a5c..9349f97ae 100644
--- a/android/Torchchat/build.gradle.kts
+++ b/android/Torchchat/build.gradle.kts
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
     id("com.android.application") version "8.1.0" apply false
diff --git a/android/Torchchat/gradle.properties b/android/Torchchat/gradle.properties
index a03b35489..9440e7d54 100644
--- a/android/Torchchat/gradle.properties
+++ b/android/Torchchat/gradle.properties
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 # Project-wide Gradle settings.
 # IDE (e.g. Android Studio) users:
 # Gradle settings configured through the IDE *will override*
diff --git a/android/Torchchat/gradle/wrapper/gradle-wrapper.properties b/android/Torchchat/gradle/wrapper/gradle-wrapper.properties
index a1a5bfcb3..5ac70c8c5 100644
--- a/android/Torchchat/gradle/wrapper/gradle-wrapper.properties
+++ b/android/Torchchat/gradle/wrapper/gradle-wrapper.properties
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 #Thu Apr 25 21:54:24 PDT 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
diff --git a/build/model_aoti.py b/build/model_aoti.py
index b7c1bda56..10560d957 100644
--- a/build/model_aoti.py
+++ b/build/model_aoti.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 import torch
 import torch.nn as nn
 from torch._inductor.codecache import AsyncCompile
diff --git a/build/model_et.py b/build/model_et.py
index 747a7ca31..cae755fbc 100644
--- a/build/model_et.py
+++ b/build/model_et.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 import torch
 import torch.nn as nn
 from executorch.extension.pybindings import portable_lib as exec_lib
diff --git a/export_et_util.py b/export_et_util.py
index a9c743a77..074f4b905 100644
--- a/export_et_util.py
+++ b/export_et_util.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 import torch
 from build.model import apply_rotary_emb, Attention
 
diff --git a/quantization/qops.py b/quantization/qops.py
index c36a464ee..281ac3e99 100644
--- a/quantization/qops.py
+++ b/quantization/qops.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import Optional
 
 import torch
diff --git a/runner/run.cpp b/runner/run.cpp
index 2ee57c8ac..ac2186ac8 100644
--- a/runner/run.cpp
+++ b/runner/run.cpp
@@ -1,3 +1,11 @@
+/*
+Copyright (c) Meta Platforms, Inc. and affiliates.
+All rights reserved.
+
+This source code is licensed under the license found in the
+LICENSE file in the root directory of this source tree.
+*/
+
 /* Inference for Llama-2 Transformer model in pure C++ */
 #include <ctype.h>
 #include <math.h>
diff --git a/scripts/patch_triton.py b/scripts/patch_triton.py
index 7213ed30c..06f04e960 100644
--- a/scripts/patch_triton.py
+++ b/scripts/patch_triton.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 #!/usr/bin/env python3
 # Delete me after triton is updated past https://github.com/triton-lang/triton/pull/3564
 
diff --git a/scripts/updown.py b/scripts/updown.py
index fc0478d47..94cf52cc6 100644
--- a/scripts/updown.py
+++ b/scripts/updown.py
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
+
 import argparse
 import os
 import re
diff --git a/unsupported/llama2.c/runner-aoti/run.cpp b/unsupported/llama2.c/runner-aoti/run.cpp
index 56d623a06..47b909a5e 100644
--- a/unsupported/llama2.c/runner-aoti/run.cpp
+++ b/unsupported/llama2.c/runner-aoti/run.cpp
@@ -1,3 +1,11 @@
+/* 
+* Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+*/
+
 /* Inference for Llama-2 Transformer model in pure C */
 /* this uses the same logic regardless of AOTI OR ET */
 /* but requires different data types - ATen vs ETen  */
diff --git a/unsupported/llama2.c/runner/run.cpp b/unsupported/llama2.c/runner/run.cpp
index 5ac8405a6..44fcbd1ac 100644
--- a/unsupported/llama2.c/runner/run.cpp
+++ b/unsupported/llama2.c/runner/run.cpp
@@ -1,3 +1,10 @@
+/* Copyright (c) Meta Platforms, Inc. and affiliates.
+All rights reserved.
+
+This source code is licensed under the license found in the
+LICENSE file in the root directory of this source tree.
+*/
+
 /* Inference for Llama-2 Transformer model in pure C */
 
 #include <stdint.h>