Mario Soster was paid $138,455.39 in total compensation as Teacher, Secondary at Halton Catholic District School Board in 2025, 38% above Ontario's $100,000.00 Sunshine List threshold.
Mario Soster has appeared on the Ontario Sunshine List 9 times since 2017, earning $1.0M in combined disclosed pay — an average of $112,960.00 a year, up 38% over that span.
That is 11% above the average disclosed pay of $124,385.86 across 1,856 listed Halton Catholic District School Board employees.
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9 years on the list
Annual total compensation (CAD) — hover to inspect.
The career in numbers
Totals, averages, and the biggest moves — all total compensation.
A career, year by year.
How Mario Soster's total compensation has moved across 9 years on the Ontario Sunshine List.
Year-by-year history
9 years on the Sunshine List.
| Year | Total Compensation | Change |
|---|---|---|
2025Latest★ Best | $138,455.39 | ▲ 7.8% |
2024 | $128,426.21 | ▲ 16.6% |
2023 | $110,180.57 | ▼ 0.5% |
2022 | $110,693.40 | ▲ 1.3% |
2021 | $109,245.58 | ▲ 2.8% |
2020 | $106,310.14 | ▲ 0.1% |
2019 | $106,217.54 | ▼ 0.2% |
2018 | $106,475.60 | ▲ 5.8% |
2017First | $100,637.86 | — |
| 9 years total | $1.0M total | $112,960.00 avg |
The record
Source data and how to request a correction.
Employee details
- Position
- Teacher, Secondary
- Sector
- —
- Province
- Ontario
- First appeared
- 2017
- Latest disclosure
- 2025
- Years on list
- 9
Data source
Salary data is published annually by the Ontario government under the Public Sector Salary Disclosure Act. Only employees earning $100,000+ are disclosed.
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