As stated in paragraph 6 in General Terms of Auction for Treasury bonds, the Government Debt Management offered the equivalent of 10% of the nominal value sold in the auction 21. May, at the price of accepted bids.

SeriesRIKB 24 0415RIKS 26 0216
ISINIS0000033009IS0000030732
Additional issuance (nominal)100,000,0000
Settlement date05/26/2021 
Total outstanding (nominal)12,270,000,00037,879,700,000