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Share-based payments | 12 Months Ended
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Sep. 30, 2025
Share-Based Payment Arrangements [Abstract] |
Share-based payments | Share-based payments a)Performance share units and restricted share units The Company operates a Share Unit Plan under which the Board of Directors may grant: –PSUs to certain employees and officers which entitle them to receive one Class A subordinate voting share for each PSU. The vesting performance conditions are determined by the Board of Directors at the time of each grant. PSUs expire on the business day preceding December 31 of the third calendar year following the end of the fiscal year during which the PSU award was made, except in the event of retirement, termination of employment or death. Conditionally upon achievement of performance objectives, granted PSUs under the Share Unit Plan vest at the end of the four-year period. –RSUs to certain employees and officers which entitle them to receive one Class A subordinate voting share for each RSU. RSUs do not have any vesting performance conditions. RSUs expire on the business day preceding December 31 of the third calendar year following the end of the fiscal year during which the RSU award was made, except in the event of retirement, termination of employment or death. Granted RSUs under the Share Unit Plan vest at the end of the four-year period. Class A subordinate voting shares purchased in connection with the Share Unit Plan are held in trusts for the benefit of the participants. The trusts, considered as structured entities, are consolidated in the Company’s consolidated financial statements with the cost of the purchased shares recorded as a reduction of capital stock (Note 19). 20. Share-based payments (continued) There are currently no outstanding RSUs under the Share Unit Plan. The following table presents information concerning the number of outstanding PSUs granted by the Company under the Share Unit Plan:
Outstanding as at September 30, 2023 | 2,252,450 |
Granted 1 | 799,418 |
Exercised (Note 19) | (280,265) |
Forfeited | (243,403) |
Outstanding as at September 30, 2024 | 2,528,200 |
Granted 1 | 674,259 |
Exercised (Note 19) | (765,318) |
Forfeited | (418,173) |
Dividends | 8,588 |
Outstanding as at September 30, 2025 | 2,027,556 |
1 The PSUs granted in 2025 had a weighted average grant date fair value of $159.44 per unit ($137.90 in 2024). b)Stock options Under the Company’s stock option plan, the Board of Directors may grant, at its discretion, stock options to purchase Class A subordinate voting shares to certain employees, officers and directors of the Company and its subsidiaries. The exercise price is established by the Board of Directors and is equal to the closing price of the Class A subordinate voting shares on the TSX on the day preceding the date of the grant. Stock options generally vest over four years from the date of grant conditionally upon achievement of performance objectives and must be exercised within a ten-year period, except in the event of retirement, termination of employment or death. As at September 30, 2025, 15,371,067 Class A subordinate voting shares were reserved for issuance under the stock option plan. The following table presents information concerning the outstanding stock options granted by the Company:
|  | 2025 |  | 2024
| Number of options | Weighted average exercise price per share | Number of options | Weighted average exercise price per share
|  | $ |  | $
Outstanding, beginning of year | 3,862,527 |  | 74.53 |  | 5,211,472 |  | 70.21 |
Exercised (Note 19) | (947,071) |  | 65.45 |  | (1,333,876) |  | 57.38 |
Forfeited | — |  | — |  | (12,575) |  | 97.84 |
Expired | (2,983) |  | 84.91 |  | (2,494) |  | 98.65 |
Outstanding, end of year | 2,912,473 |  | 77.48 |  | 3,862,527 |  | 74.53 |
Exercisable, end of year | 2,912,473 |  | 77.48 |  | 3,699,805 |  | 73.51 |
The weighted average share price at the date of exercise for stock options exercised in 2025 was $155.80 ($145.60 in 2024). The following table summarizes information about the outstanding stock options granted by the Company as at September 30, 2025:
|  | Options outstanding and exercisable |
Range of exercise price | Number of options | Weighted average remaining contractual life | Weighted average exercise price |  |
$ |  | (in years) | $ |  |
47.81 to 52.63 | 43,095 |  | 0.02 | 49.10 |  |  |
57.21 to 63.23 | 1,391,588 |  | 1.51 | 63.22 |  |  |
67.04 to 85.62 | 847,418 |  | 2.93 | 84.47 |  |  |
97.84 to 110.73 | 630,372 |  | 4.93 | 101.50 |  |  |
| 2,912,473 |  | 2.64 | 77.48 |  |
20. Share-based payments (continued) c)Share purchase plan Under the share purchase plan, the Company contributes an amount equal to a percentage of the employee's basic contribution, up to a maximum of 3.50%. An employee may make additional contributions in excess of the basic contribution. However, the Company does not match contributions in the case of such additional contributions. The employee and Company's contributions are remitted to an independent plan administrator who purchases Class A subordinate voting shares on the open market on behalf of the employee through either the TSX or NYSE. d)Deferred share unit plan External members of the Board of Directors (participants) are entitled to receive part or their entire retainer fee in DSUs. DSUs are granted with immediate vesting and must be exercised no later than December 15 of the calendar year immediately following the calendar year during which the participant ceases to act as a director. Each DSU entitles the holder to receive a cash payment equal to the closing price of Class A subordinate voting shares on the TSX on the payment date. As at September 30, 2025, the number of outstanding DSUs was 99,938 (110,412 DSUs as at September 30, 2024). e)Share-based payment costs The share-based payment expense recorded in costs of services, selling and administrative is as follows:
|  | Year ended September 30
|  | 2025 | 2024
|  | $ | $
PSUs |  | 68,636 |  | 67,054 |
Stock options |  | — |  | 786 |
Share purchase plan |  | 196,510 |  | 181,989 |
DSUs |  | (743) |  | 4,384 |
|  | 264,403 |  | 254,213

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- Definition The entire disclosure for share-based payment arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2025-01-01 -Paragraph 44 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_44&doctype=Standard -URIDate 2025-03-27 + Details
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