SCHEDULE 13G/A

Energy Recovery Inc

Common Stock · CUSIP: 29270J100

Event date: 2025-06-30

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

• Ameriprise Financial, Inc.

  Shares: 5,401,044 · Class: 9.9%

• TAM UK International Holdings Limited

  Shares: 4,788,751 · Class: 8.8%

• Threadneedle Holdings Limited

  Shares: 4,788,751 · Class: 8.8%

• TAM UK Holdings Limited

  Shares: 4,788,751 · Class: 8.8%

• Threadneedle Asset Management Holdings Limited

  Shares: 4,788,751 · Class: 8.8%

• TC Financing Ltd

  Shares: 4,788,751 · Class: 8.8%

• Threadneedle Asset Management Limited

  Shares: 4,788,751 · Class: 8.8%

• Threadneedle Investment Services Limited

  Shares: 4,788,751 · Class: 8.8%

• Threadneedle Management Luxembourg S.A.

  Shares: 4,788,751 · Class: 8.8%

• CT (Lux) American Smaller Companies, a sub-fund of Columbia Threadneedle (Lux) I SICAV

  Shares: 2,963,406 · Class: 5.4%

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