SCHEDULE 13G/A

N/A

Common Stock, par value $0.001 per share · CUSIP: 282559103

Event date: 2024-12-31

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• BIOTECHNOLOGY VALUE FUND L P

  Shares: 2,227,427.00 · Class: 1.9%

• BVF I GP LLC

  Shares: 2,227,427.00 · Class: 1.9%

• BIOTECHNOLOGY VALUE FUND II LP

  Shares: 1,799,517.00 · Class: 1.5%

• BVF II GP LLC

  Shares: 1,799,517.00 · Class: 1.5%

• Biotechnology Value Trading Fund OS LP

  Shares: 223,979.00 · Class: 0.2%

• BVF Partners OS Ltd.

  Shares: 223,979.00 · Class: 0.2%

• BVF GP HOLDINGS LLC

  Shares: 4,026,944.00 · Class: 3.4%

• BVF PARTNERS L P/IL

  Shares: 4,333,885.00 · Class: 3.6%

• BVF INC/IL

  Shares: 4,333,885.00 · Class: 3.6%

• LAMPERT MARK N

  Shares: 4,333,885.00 · Class: 3.6%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.