SCHEDULE 13D/A

Thomson Reuters

COMMON SHARES OF THOMSON REUTERS CORPORATION · CUSIP: 884903709

Event date: 2023-12-31

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

• THOMSON INVESTMENTS LIMITED

  Shares: 313,465,179 · Class: 69.7%

• THE WOODBRIDGE COMPANY LIMITEDReported CIK 0001397960

  Shares: 300,508,139 · Class: 66.8%

• 1908720 ONTARIO LIMITED

  Shares: 188,772,148 · Class: 42%

• 1000706525 ONTARIO LIMITED

  Shares: 36,349,839 · Class: 8.1%

• 1396164 Ontario Limited

  Shares: 12,878,129 · Class: 2.9%

• 1925124 Ontario Limited

  Shares: 506,720 · Class: 0.1%

• Woodbridge Investments Corporation

  Shares: 2,303 · Class: 0%

• 1000927194 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927196 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927197 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927200 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927201 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927202 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927205 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927207 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927210 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

• 1000927211 Ontario Limited

  Shares: 6,200,000 · Class: 1.4%

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