S3 is the code to report block trade special crossings
XT means it was facilitated by 1 broker
In short, a broker has coordinated a large parcel to be transacted between a buyer and seller, done on market. Nothing to do with warrants
Some light reading:
https://www.asx.com.au/documents/pr...es_Procedures_Amendments_due_to_MIRs_AGBs.pdf