SCHEDULE 13G/A

Ironwood Pharmaceuticals Inc

Class A Common Stock, Par Value $0.001 Per Share · CUSIP: 46333X108

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

• Pacer US Small Cap Cash Cows ETF

  Shares: 1,789,098 · Class: 1.12%

• Pacer US Small Cap Cash Cows Growth Leaders ETF

  Shares: 0 · Class: 0%

• Pacer Advisors, Inc.

  Shares: 1,789,098 · Class: 1.12%

• Joe M. Thomson

  Shares: 1,789,098 · Class: 1.12%

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