Stable oxygen and carbon isotope ratios measured on groups of four shells of Neogloboquadrina pachyderma from a sediment trap time series from the central Irminger Sea. Measurements were made on groups of four shells in the 150-250 μm fraction using a Finnigan MAT253 coupled to a Kiel IV preparation line. Sample averages have been reported doi:10.1594/PANGAEA.753860 (d18O) and doi:10.1594/PANGAEA.807458 (d13C). Repeat measurements of a carbonate standard indicate an analytical precision of 0.05 and 0.03 permille for d18O and d13C, respectively. Details on the measurements and the sediment trap mooring can be found in doi:10.1029/2009PA001849 and doi:10.1002/palo.20018.