Noel Tata, SP Group Talk Share Swap for Tata Sons Stake Noel Tata, SP Group Talk Share Swap for Tata Sons Stake By Vaibhav Purohit on August 28, 2026 Noel Tata and Shapoorji Group are negotiating a share‑swap or alternative buyout to resolve SP Group’s 18.4% holding in Tata Sons, with a deadline tied to a high‑yield bond issue.