diff --git a/server/src/modules/agent-lifecycle/__tests__/lifecycle.test.ts b/server/src/modules/agent-lifecycle/__tests__/lifecycle.test.ts
index 404e76d6b30..ab4e53d0839 100644
--- a/server/src/modules/agent-lifecycle/__tests__/lifecycle.test.ts
+++ b/server/src/modules/agent-lifecycle/__tests__/lifecycle.test.ts
@@ -414,6 +414,21 @@ const support = external ? { supported: true } : await getEmbeddedPostgresTestSu
     expect((await db.select().from(nativeRunFinalizations).where(eq(nativeRunFinalizations.runId, run.id)))[0]).toMatchObject({ leaseOwner: null, leaseExpiresAt: null });
   });
 
+  it("releases an expired native owner whose renewed lease expiry has microsecond precision", async () => {
+    const agent = await hire();
+    const [issue] = await db.insert(issues).values({ companyId, title: "Renewed native run" }).returning();
+    const [run] = await db.insert(heartbeatRuns).values({ companyId, agentId: agent.id, nativeIssueId: issue.id,
+      status: "cancelled", invocationSource: "on_demand", runtimeMode: "native",
+      startedAt: new Date(), finishedAt: new Date(), processPid: 2_000_000_000 }).returning();
+    await db.insert(nativeRunFinalizations).values({ companyId, issueId: issue.id, runId: run.id,
+      phase: "executing", leaseOwner: "stopped-server", leaseExpiresAt: new Date(0) });
+    await db.update(nativeRunFinalizations)
+      .set({ leaseExpiresAt: sql`'2020-01-01T00:00:00.123456Z'::timestamptz` })
+      .where(eq(nativeRunFinalizations.runId, run.id));
+    expect(await agentExecutionsHaveStopped(db, [agent.id])).toBe(true);
+    expect((await db.select().from(nativeRunFinalizations).where(eq(nativeRunFinalizations.runId, run.id)))[0]).toMatchObject({ leaseOwner: null, leaseExpiresAt: null });
+  });
+
   it("does not advance termination while a cancelled process still runs", async () => {
     const agent = await hire();
     const [run] = await db.insert(heartbeatRuns).values({ companyId, agentId: agent.id,
diff --git a/server/src/services/agent-execution-stop.ts b/server/src/services/agent-execution-stop.ts
index 3fad14e89b1..92e9e5964bb 100644
--- a/server/src/services/agent-execution-stop.ts
+++ b/server/src/services/agent-execution-stop.ts
@@ -64,7 +64,7 @@ export async function agentExecutionsHaveStopped(db: Db, agentIds: string[]) {
     const [cleared] = await db.update(nativeRunFinalizations).set({ leaseOwner: null, leaseExpiresAt: null, updatedAt: now })
       .where(and(eq(nativeRunFinalizations.runId, coordinator.runId),
         eq(nativeRunFinalizations.leaseOwner, coordinator.leaseOwner!),
-        eq(nativeRunFinalizations.leaseExpiresAt, coordinator.leaseExpiresAt!),
+        sql`date_trunc('milliseconds', ${nativeRunFinalizations.leaseExpiresAt}) = ${coordinator.leaseExpiresAt!.toISOString()}::timestamptz`,
         eq(nativeRunFinalizations.controllerGeneration, coordinator.controllerGeneration),
         eq(nativeRunFinalizations.phase, coordinator.phase), isNull(nativeRunFinalizations.resultId)))
       .returning({ runId: nativeRunFinalizations.runId });