This is a retrospective study of all known Swedish solid organ transplant recipients with RT-PCR confirmed COVID-19 between March 1st and November 20th, 2020 and analyzed patient characteristics, management, and outcome. 230 patients with a median age of 54.0 years (13.2), who were predominantly male (64%) were identified. Most patients were hospitalized (64%), but 36% remained outpatients. Thirty-day all-cause mortality was 9.6% (15.0% for inpatients), increased with age and BMI, and was higher in men. Renal function decreased during COVID-19 but recovered in most patients. SARS-CoV-2 antibodies were identified in 78% of patients at 1-2 months post-infection. Nucleocapsid-specific antibodies decreased to 38% after 6-7 months, while spike-specific antibody responses were more durable. Seroprevalence in 559 asymptomatic patients was 1.4%.