SCHEDULE 13D/A

Franklin Street Properties Corp

Common Stock · CUSIP: 35471R106

Event date: 2026-10-28

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

• Powell Anderson Capital Partners LLCReported CIK 0002048057

  Shares: 8,294,084.00 · Class: 8.0%

• PACP Acadia LLCReported CIK 0002152425

  Shares: 7,232,085.00 · Class: 7.0%

• Powell Anderson Capital LPReported CIK 0001714181

  Shares: 1,061,999.00 · Class: 1.0%

• R. Adam LindsayReported CIK 0002048067

  Shares: 8,294,084.00 · Class: 8.0%

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