get all period ending dates from the beginning of the year to end date

//get all period ending dates from the beginning of the year to end date

                    var endDate = productivitySearchDto.ToDate;

                    var dates = Enumerable.Range(1, endDate.DayOfYear)

                        .Select(n => new DateTime(endDate.Year,1,1).AddDays(n))

                        .Where(date => date.DayOfWeek == DayOfWeek.Saturday)

                        .ToList();