diff --git a/source/opt/folding_rules.cpp b/source/opt/folding_rules.cpp
index a928fa21e3d..41f535d85d7 100644
--- a/source/opt/folding_rules.cpp
+++ b/source/opt/folding_rules.cpp
@@ -313,6 +313,11 @@ FoldingRule ReciprocalFDiv() {
     analysis::ConstantManager* const_mgr = context->get_constant_mgr();
     const analysis::Type* type =
         context->get_type_mgr()->GetType(inst->type_id());
+
+    if (type->kind() == analysis::Type::kCooperativeMatrixKHR) {
+      return false;
+    }
+
     if (!inst->IsFloatingPointFoldingAllowed()) return false;
 
     uint32_t width = ElementWidth(type);
@@ -755,6 +760,11 @@ FoldingRule MergeMulDivArithmetic() {
 
     const analysis::Type* type =
         context->get_type_mgr()->GetType(inst->type_id());
+
+    if (type->kind() == analysis::Type::kCooperativeMatrixKHR) {
+      return false;
+    }
+
     if (!inst->IsFloatingPointFoldingAllowed()) return false;
 
     uint32_t width = ElementWidth(type);
@@ -873,6 +883,11 @@ FoldingRule MergeDivDivArithmetic() {
     analysis::ConstantManager* const_mgr = context->get_constant_mgr();
     const analysis::Type* type =
         context->get_type_mgr()->GetType(inst->type_id());
+
+    if (type->kind() == analysis::Type::kCooperativeMatrixKHR) {
+      return false;
+    }
+
     if (!inst->IsFloatingPointFoldingAllowed()) return false;
 
     uint32_t width = ElementWidth(type);
@@ -946,6 +961,11 @@ FoldingRule MergeDivMulArithmetic() {
 
     const analysis::Type* type =
         context->get_type_mgr()->GetType(inst->type_id());
+
+    if (type->kind() == analysis::Type::kCooperativeMatrixKHR) {
+      return false;
+    }
+
     if (!inst->IsFloatingPointFoldingAllowed()) return false;
 
     uint32_t width = ElementWidth(type);
diff --git a/test/opt/fold_test.cpp b/test/opt/fold_test.cpp
index 3a0884d183a..e2d9d7cc185 100644
--- a/test/opt/fold_test.cpp
+++ b/test/opt/fold_test.cpp
@@ -4753,6 +4753,54 @@ INSTANTIATE_TEST_SUITE_P(FloatRedundantFoldingTest, GeneralInstructionFoldingTes
             "%2 = OpFDiv %half %half_1 %half_2\n" +
             "OpReturn\n" +
             "OpFunctionEnd",
+        2, 0),
+    // Test case 24: Don't fold OpFNegate for cooperative matrices.
+    InstructionFoldingCase<uint32_t>(
+        Header() + "%main = OpFunction %void None %void_func\n" +
+            "%main_lab = OpLabel\n" +
+            "%2 = OpFNegate %float_coop_matrix %undef_float_coop_matrix\n" +
+            "OpReturn\n" +
+            "OpFunctionEnd",
+        2, 0),
+    // Test case 25: Don't fold OpIAdd for cooperative matrices.
+    InstructionFoldingCase<uint32_t>(
+        Header() + "%main = OpFunction %void None %void_func\n" +
+            "%main_lab = OpLabel\n" +
+            "%2 = OpFAdd %float_coop_matrix %undef_float_coop_matrix %undef_float_coop_matrix\n" +
+            "OpReturn\n" +
+            "OpFunctionEnd",
+        2, 0),
+    // Test case 26: Don't fold OpISub for cooperative matrices.
+    InstructionFoldingCase<uint32_t>(
+        Header() + "%main = OpFunction %void None %void_func\n" +
+            "%main_lab = OpLabel\n" +
+            "%2 = OpFSub %float_coop_matrix %undef_float_coop_matrix %undef_float_coop_matrix\n" +
+            "OpReturn\n" +
+            "OpFunctionEnd",
+        2, 0),
+    // Test case 27: Don't fold OpIMul for cooperative matrices.
+    InstructionFoldingCase<uint32_t>(
+        Header() + "%main = OpFunction %void None %void_func\n" +
+            "%main_lab = OpLabel\n" +
+            "%2 = OpFMul %float_coop_matrix %undef_float_coop_matrix %undef_float_coop_matrix\n" +
+            "OpReturn\n" +
+            "OpFunctionEnd",
+        2, 0),
+    // Test case 28: Don't fold OpSDiv for cooperative matrices.
+    InstructionFoldingCase<uint32_t>(
+        Header() + "%main = OpFunction %void None %void_func\n" +
+            "%main_lab = OpLabel\n" +
+            "%2 = OpFDiv %float_coop_matrix %undef_float_coop_matrix %undef_float_coop_matrix\n" +
+            "OpReturn\n" +
+            "OpFunctionEnd",
+        2, 0),
+    // Test case 29: Don't fold OpMatrixTimesScalar for cooperative matrices.
+    InstructionFoldingCase<uint32_t>(
+        Header() + "%main = OpFunction %void None %void_func\n" +
+            "%main_lab = OpLabel\n" +
+            "%2 = OpMatrixTimesScalar %float_coop_matrix %undef_float_coop_matrix %float_3\n" +
+            "OpReturn\n" +
+            "OpFunctionEnd",
         2, 0)
 ));