SCHEDULE 13G/A

OPEN TEXT CORP

Common Shares · CUSIP: 683715106

Event date: 2025-09-30

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

• 1832 Asset Management L.P.

  Shares: 3,485,528 · Class: 1.3781%

• MD Financial Management Inc.

  Shares: 296,432 · Class: 0.1172%

• Scotia McLeod, a division of Scotia Capital Inc.

  Shares: 410,284 · Class: 0.1622%

• Jarislowsky, Fraser Limited

  Shares: 21,150,154 · Class: 8.3624%

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