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Thomas MacMillan
Director/Board Member at
SONOR INVESTMENTS LIMITED
Net worth: 6 402 $ as of 31/05/2026
Profile
Mr. Thomas C.
MacMillan is a Director & Chairman of the Investment Committee at Private Debt Partners, Inc., an Independent Director at Sonor Investments Ltd. and a President & Chief Executive Officer at The Corporation of Massey Hall & Roy Thomson Hall.
He is on the Board of Directors at Sonor Investments Ltd. Mr. MacMillan was previously employed as a President & Chief Executive Officer by Gluskin Sheff + Associates, Inc. (Investment Management), a Chairman, President & Chief Executive Officer by Gluskin Sheff + Associates, Inc., a Chairman, President & Chief Executive Officer by CIBC Mellon Global Securities Services Co., a Principal by Bank of Montreal, a Chairman by Blair Franklin Asset Management, Inc., a Chairman by I3 Advisors, Inc., a Chairman, President & Chief Executive Officer by Mellon Bank, NA, a Principal by Montreal Trust Company of Canada, a Regional Director by The Bank of New York Mellon Corp., and a Principal by The Chase Manhattan Bank of Canada.
He also served on the board at The Guarantee Co. of North America.
He received his undergraduate degree from Princeton University and a graduate degree from London School of Economics & Political Science.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 22/04/2025 | 1,600 ( 0.82% ) | 6 402 $ | 31/05/2026 |
Thomas MacMillan active positions
| Companies | Position | Start |
|---|---|---|
| SONOR INVESTMENTS LIMITED | Director/Board Member | 01/01/2000 |
The Corporation of Massey Hall & Roy Thomson Hall
 The Corporation of Massey Hall & Roy Thomson Hall Miscellaneous Commercial ServicesCommercial Services Operates charitable organization for concert halls | Chief Executive Officer | - |
Private Debt Partners, Inc.
 Private Debt Partners, Inc. Investment ManagersFinance Private Debt Partners, Inc. is an active manager. | Investment Committee Member | 01/03/2020 |
Former positions of Thomas MacMillan
| Companies | Position | End |
|---|---|---|
| GLUSKIN SHEFF + ASSOCIATES INC | Chief Executive Officer | 20/09/2017 |
ONEX Canada Asset Management, Inc. (Investment Management)
 ONEX Canada Asset Management, Inc. (Investment Management) Investment ManagersFinance OCAM-IM seeks to preserve clients' capital, manage risk and deliver outstanding long-term investment returns through varying economic and market cycles. The firm focuses on generating strong absolute, rather than relative, investment returns. They employ bottom-up security selection based on fundamental analysis and in-depth research, coupled with their top-down macroeconomic view. | Chief Executive Officer | 19/09/2017 |
CIBC Mellon Global Securities Services Co.
 CIBC Mellon Global Securities Services Co. Investment Banks/BrokersFinance Provides securities transfer services | Chief Executive Officer | 01/01/2009 |
The Guarantee Company of North America
 The Guarantee Company of North America Specialty InsuranceFinance Provides insurance services | Director/Board Member | - |
| BANK OF NEW YORK MELLON CORPORATION (THE) | Corporate Officer/Principal | - |
Training of Thomas MacMillan
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
34
1st degree connections
16
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 16 |
|---|---|
Bank of Montreal
 Bank of Montreal Major BanksFinance Provides national banking services | Finance |
Mellon Bank, NA
 Mellon Bank, NA Regional BanksFinance Provides commercial banking services | Finance |
Sonor Investments Ltd.
 Sonor Investments Ltd. MiscellaneousMiscellaneous Operates as an investment management company | Miscellaneous |
The Bank of New York Mellon Corp.
 The Bank of New York Mellon Corp. Investment Banks/BrokersFinance Provides securities, investment and wealth management services | Finance |
Montreal Trust Company of Canada
 Montreal Trust Company of Canada Regional BanksFinance Operates as a transfer agent, corporate trustee and fiduciary | Finance |
ONEX Canada Asset Management, Inc. (Investment Management)
ONEX Canada Asset Management, Inc. (Investment Management) Investment ManagersFinance OCAM-IM seeks to preserve clients' capital, manage risk and deliver outstanding long-term investment returns through varying economic and market cycles. The firm focuses on generating strong absolute, rather than relative, investment returns. They employ bottom-up security selection based on fundamental analysis and in-depth research, coupled with their top-down macroeconomic view. | Finance |
The Guarantee Company of North America
The Guarantee Company of North America Specialty InsuranceFinance Provides insurance services | Finance |
CIBC Mellon Global Securities Services Co.
CIBC Mellon Global Securities Services Co. Investment Banks/BrokersFinance Provides securities transfer services | Finance |
Princeton University
 Princeton University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
London School of Economics & Political Science
 London School of Economics & Political Science Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
ONEX Canada Asset Management, Inc.
 ONEX Canada Asset Management, Inc. Investment ManagersFinance Provides investment advisory services | Finance |
The Chase Manhattan Bank of Canada
 The Chase Manhattan Bank of Canada Regional BanksFinance Provides banking services | Finance |
The Corporation of Massey Hall & Roy Thomson Hall
The Corporation of Massey Hall & Roy Thomson Hall Miscellaneous Commercial ServicesCommercial Services Operates charitable organization for concert halls | Commercial Services |
I3 Advisors, Inc.
 I3 Advisors, Inc. Miscellaneous Commercial ServicesCommercial Services Provides risk management services | Commercial Services |
Blair Franklin Asset Management, Inc.
 Blair Franklin Asset Management, Inc. Investment ManagersFinance Blair Franklin Asset Management specializes in fixed income-focused alternative asset management services. The firm seeks to deliver positive absolute returns to clients through its two funds: the Blair Franklin Global Credit Fund LP and the Blair Franklin Global Rates LP. The funds employ relative value strategies that are not directly dependent on either the absolute level of interest rates or a rising/falling rate environment. The Blair Franklin Global Credit Fund generates returns through long and short exposure to credit spreads globally. Foreign exchange exposure and interest rate exposure are minimized. The fund’s investment universe is global corporate and government fixed income products. The Blair Franklin Global Rates Fund generates returns from interest rate changes in major global markets. Foreign exchange exposure is minimized. The fund’s investment universe is G20 government and agency bonds, futures and derivatives. Returns are not dependent on the absolute level of interest rates. | Finance |
Private Debt Partners, Inc.
Private Debt Partners, Inc. Investment ManagersFinance Private Debt Partners, Inc. is an active manager. | Finance |
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