diff --git a/.github/workflows/multi_arch_build_tarballs.yml b/.github/workflows/multi_arch_build_tarballs.yml
index a4e03d4cfbb..8ef3c9166dd 100644
--- a/.github/workflows/multi_arch_build_tarballs.yml
+++ b/.github/workflows/multi_arch_build_tarballs.yml
@@ -117,12 +117,19 @@ jobs:
           gh_app_client_id: ${{ secrets.GH_APP_HAULY_CID }}
           gh_app_private_key: ${{ secrets.GH_APP_HAULY_PRIVATE_KEY }}
 
+      - name: Install Git
+        run: apt-get update && apt-get install -y --no-install-recommends git
+
       - name: Checkout
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: ${{ inputs.repository || github.repository }}
           ref: ${{ inputs.ref || github.ref_name }}
 
+      # TODO(8354): pip install rocm-bootstrap instead
+      - name: Checkout shared package ownership metadata
+        run: git submodule update --init --depth 1 rocm-systems
+
       - name: Install Python requirements
         run: pip install -r requirements.txt
 
diff --git a/build_tools/packaging/archives/build_tarballs.py b/build_tools/packaging/archives/build_tarballs.py
index 990c56ef61b..afacaba6971 100644
--- a/build_tools/packaging/archives/build_tarballs.py
+++ b/build_tools/packaging/archives/build_tarballs.py
@@ -4,7 +4,7 @@
 
 """Fetch multi-arch build artifacts and package them into per-family tarballs.
 
-For each GPU family in --dist-amdgpu-families, this script:
+For each package-owner group in --dist-amdgpu-families, this script:
 1. Fetches artifacts (generic + family-specific) using artifact_manager.py
 2. Flattens them into a single install-prefix-like layout
 3. Compresses the result into a tarball
@@ -17,6 +17,10 @@
 A shared download cache avoids re-downloading generic (host) artifacts
 when processing multiple families.
 
+Individual targets sharing a package owner are collected into one tarball
+named for that owner. Only the requested targets are fetched; family selections
+retain their family names.
+
 By default, generated tarballs exclude test artifacts and fftw3. Pass
 ``--include-test-tarballs`` to also generate full tarballs, named with a
 ``-tests`` suffix, that include test artifacts.
@@ -41,7 +45,7 @@
 and use its run ID. Use ``--platform`` to select which platform's
 artifacts to fetch (defaults to the current system).
 
-Expected output: one .tar.gz per family in ``--output-dir``, named
+Expected output: one .tar.gz per family or shared target owner in ``--output-dir``, named
 ``therock-dist-{platform}-{family}-{version}.tar.gz``. If
 KPACK_SPLIT_ARTIFACTS is enabled in the build, also a
 ``therock-dist-{platform}-multiarch-{version}.tar.gz``.
@@ -66,6 +70,9 @@
 from zlib_ng import gzip_ng_threaded
 
 _BUILD_TOOLS_DIR = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(_BUILD_TOOLS_DIR))
+
+from _therock_utils.sdk_targets import group_package_targets
 
 DEFAULT_EXCLUDED_ARTIFACTS: list[str] = ["fftw3"]
 DEFAULT_EXCLUDED_COMPONENTS: list[str] = ["test"]
@@ -389,11 +396,11 @@ def main(argv: list[str] | None = None) -> None:
     # family and multiarch staging trees.
     family_dirs = []
     compress_tasks: list[CompressionTask] = []
-    for family in families:
+    for family, members in group_package_targets(families).items():
         flatten_dir = work_dir / family
         fetch_and_flatten(
             run_id=args.run_id,
-            amdgpu_families=[family],
+            amdgpu_families=members,
             platform=args.platform,
             output_dir=flatten_dir,
             download_cache_dir=download_cache_dir,
@@ -417,7 +424,7 @@ def main(argv: list[str] | None = None) -> None:
             tests_dir = work_dir / "tests" / family
             fetch_and_flatten(
                 run_id=args.run_id,
-                amdgpu_families=[family],
+                amdgpu_families=members,
                 platform=args.platform,
                 output_dir=tests_dir,
                 download_cache_dir=download_cache_dir,
diff --git a/build_tools/packaging/archives/tests/build_tarballs_test.py b/build_tools/packaging/archives/tests/build_tarballs_test.py
index c129cf72553..0c746f43d02 100644
--- a/build_tools/packaging/archives/tests/build_tarballs_test.py
+++ b/build_tools/packaging/archives/tests/build_tarballs_test.py
@@ -169,6 +169,47 @@ def _run_main_with_mocks(
                         main(argv)
         return MainMocks(fetch_mock, compress_mock, kpack_mock)
 
+    def test_shared_owner_preserves_selected_targets(self) -> None:
+        for selected in (
+            ["gfx1250"],
+            ["gfx1250-strict"],
+            ["gfx1250", "gfx1250-strict"],
+            ["gfx1250-strict", "gfx1250"],
+        ):
+            with self.subTest(
+                selected=selected
+            ), tempfile.TemporaryDirectory() as tmpdir:
+                families = [*selected, "gfx1151"]
+                fetch, compress, _ = self._run_main_with_mocks(
+                    [
+                        "--run-id=123",
+                        f"--dist-amdgpu-families={';'.join(families)}",
+                        "--platform=linux",
+                        "--package-version=7.13.0",
+                        f"--output-dir={tmpdir}",
+                        "--include-test-tarballs",
+                    ],
+                    kpack_split=True,
+                )
+                self.assertEqual(
+                    [call.kwargs["amdgpu_families"] for call in fetch.call_args_list],
+                    [selected, selected, ["gfx1151"], ["gfx1151"], families, families],
+                )
+                self.assertCountEqual(
+                    [
+                        call.kwargs["tarball_path"].name
+                        for call in compress.call_args_list
+                    ],
+                    [
+                        "therock-dist-linux-gfx1250-7.13.0.tar.gz",
+                        "therock-dist-linux-gfx1250-tests-7.13.0.tar.gz",
+                        "therock-dist-linux-gfx1151-7.13.0.tar.gz",
+                        "therock-dist-linux-gfx1151-tests-7.13.0.tar.gz",
+                        "therock-dist-linux-multiarch-7.13.0.tar.gz",
+                        "therock-dist-linux-multiarch-tests-7.13.0.tar.gz",
+                    ],
+                )
+
     def test_default_builds_tarballs_without_tests_only(self) -> None:
         with tempfile.TemporaryDirectory() as tmpdir:
             output_dir = Path(tmpdir) / "tarballs"