SCHEDULE 13G/A

ONTERRIS, INC.

Common Stock · CUSIP: 615111101

Event date: 2025-03-31

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

• BAMCO INC /NY/

  Shares: 2,510,614 · Class: 7.24%

• Baron Capital Group, Inc.

  Shares: 2,695,682 · Class: 7.78%

• Baron Capital Management, Inc.

  Shares: 185,068 · Class: 0.53%

• Ronald Baron

  Shares: 2,695,682 · Class: 7.78%

• Baron Discovery Fund

  Shares: 2,063,493 · Class: 5.95%

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