Mary Cecilia Williams
Ontario Securities Commission/Adjudicator / Arbitre
2023 Salary — last year on the list
$102,834Total compensation $102,834, including $0 in taxable benefits.
Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page
At a Glance
2023
Employer Rank
#454Ontario Securities Commission
Years on List
42019–2023
Peak Salary
$141,7502021
Full 2023 roster at Ontario Securities Commission →·See where $102,834 ranks →
Total Compensation History
Full History
2019–2023
$112,025 in 2019 is worth about $135,254 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2023 | Adjudicator / ArbitreOntario Securities Commission / Commission des valeurs mobilières de l'Ontario | $102,834Benefits $0Total $102,834 |
| 2021 | Commissioner / CommissaireOntario Securities Commission | $141,750Benefits $0Total $141,750 |
| 2020 | Commissioner / CommissaireOntario Securities Commission | $133,893Benefits $0Total $133,893 |
| 2019 | Commissioner / CommissaireOntario Securities Commission | $112,025Benefits $0Total $112,025 |
Take-Home Pay
(After Tax) · 2023 estimate
In 2023, Mary Cecilia Williams's $102,834 salary works out to roughly $75,527 after income tax, CPP and EI — an all-in deduction rate of about 26.6%. Among those listed as Adjudicator Arbitre in 2023, the median was $144,204; this salary sits about 29% below it. Records under this name have appeared on the Sunshine List 4 years in all, first in 2019. After pension contributions (probably PSPP or OPTrust in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$75,527
- Effective income-tax rate (excl. CPP/EI)
- ~21.9%
- CPP + EI contributions
- ~$4,756
- All-in deduction rate (incl. CPP/EI)
- ~26.6%
- vs. 2023 Adjudicator Arbitre median
- −29%
Where does $102,834 rank on the Sunshine List? →
Estimate only: 2023 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.