Trade Summary

5 days ago, Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust, serving as 10% owner Owner at EBR Systems, Inc. (NONE.), purchased 7,700,119 shares at $2.70 per share, for a total transaction value of $20,790,321.30. Following this transaction, Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust now holds 11,049,972 shares of NONE..

This purchase represents a 229.86% increase in Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Friday, August 21, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, August 25, 2026 at 6:36 AM ET, 4 days after the trade was made.