GCN Circular 17698
I. van de Stadt (AWSV Metius, Alkmaar, The Netherlands) and K. Wiersema (U. of Leicester) report: We observed the field of GRB 150413A (Markwardt et al. GCN 17688; Ivanov et al., GCN 17689) using the ABT, a 10-inch remote controlled observatory in Alkmaar, The Netherlands. In a series of I band exposures, with midpoint 0.55 days after burst, the afterglow is not detected, with a 5-sigma upper limit of 18.7 mag (calibrated using APASS field stars and the Jordi et al. (2005) conversions). This limit is in agreement with the light curve break seen by Schmalz et al. (GCN 17695).