Is this injection safe?

$dsn = "mysql:host=localhost;dbname=DATABASE;charset=utf8mb4";
$options = [
  PDO::ATTR_EMULATE_PREPARES   => false,
  PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
  PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
];
try {
  $pdo = new PDO($dsn, "USERNAME", "PASSWORD", $options);
} catch (Exception $e) {
  error_log($e->getMessage());
  exit('Something weird happened');
}

$stmt = $pdo->prepare("INSERT INTO allOptionalServices(Agent_ID,
                                                           Tran_Year,
                                                           Tran_Period,
                                                           Original_Mobile_ID,
                                                           Mobile_ID,
                                                           Device_ID,
                                                           Account_Number,
                                                           Optional_Service,
                                                           Customer_Name,
                                                           Activation_Date,
                                                           Access_Charge,
                                                           SFO,
                                                           Model,
                                                           Agent_SS,
                                                           Adj_Amount2,
                                                           SPIFF_Amount2)
                                          VALUES (?, ?, ?, ?,?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
                  $stmt->execute([$Agent_ID,
                                  $Tran_Year,
                                  $Tran_Period,
                                  $Original_Mobile_ID,
                                  $Mobile_ID,
                                  $Device_ID,
                                  $Account_Number,
                                  $Optional_Service,
                                  $Customer_Name,
                                  $Activation_Date,
                                  $Access_Charge,
                                  $SFO,
                                  $Model,
                                  $Agent_SS,
                                  $Adj_Amount2,
                                  $SPIFF_Amount2]);
                  $stmt = null;