Scorpio Tankers COO reports 864,531 share stake

Scorpio Tankers Inc. filed an initial ownership report showing Chief Operating Officer Mackey Cameron Keyser directly holds 864,531 common shares.

Rhea-AI Filing Summary

Scorpio Tankers Inc. filed an initial ownership report showing Chief Operating Officer Mackey Cameron Keyser directly holds 864,531 common shares. This total includes 606,461 shares awarded under the company’s 2013 Equity Incentive Plan that are currently unvested, reflecting both vested and unvested equity reported as beneficial ownership.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Mackey Cameron Keyser

Role Chief Operating Officer

Type	Security	Shares	Price	Value
holding	Common Shares	--	--	--

Holdings After Transaction: Common Shares — 864,531 shares (Direct)

Footnotes (1)

1. F1. Includes 606,461 shares awarded under 2013 Equity Incentive Plan of the Issuer which are currently unvested

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does Mackey Cameron Keyser’s Form 3 for Scorpio Tankers (STNG) show?

The Form 3 shows Mackey Cameron Keyser, Chief Operating Officer, beneficially owns 864,531 common shares of Scorpio Tankers. This is an initial ownership statement, not a record of a new stock purchase or sale transaction.

How many Scorpio Tankers (STNG) shares does the COO report owning?

Mackey Cameron Keyser reports beneficial ownership of 864,531 Scorpio Tankers common shares. This figure represents his direct holdings as disclosed in the Form 3, combining both vested and unvested awards reported as part of his equity position.

How many of the COO’s Scorpio Tankers (STNG) shares are unvested awards?

The filing notes that 606,461 of the reported shares were awarded under Scorpio Tankers’ 2013 Equity Incentive Plan and are currently unvested. These unvested awards are still included in the total beneficial ownership reported on the Form 3.

Is the Scorpio Tankers (STNG) Form 3 a buy or sell by the COO?

The Form 3 is not a buy or sell report; it is an initial statement of beneficial ownership. It lists Mackey Cameron Keyser’s existing holdings in Scorpio Tankers, rather than documenting a new purchase or sale transaction.

What role does Mackey Cameron Keyser hold at Scorpio Tankers (STNG)?

Mackey Cameron Keyser is listed as Chief Operating Officer of Scorpio Tankers Inc. His Form 3 filing combines this officer role information with disclosure of his 864,531 common-share beneficial ownership position in the company.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/18/2026 - 12:16 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Mackey Cameron Keyser

(Last) (First) (Middle)

1 LAFAYETTE PLACE

C/O SCORPIO TANKERS INC.

(Street)

GREENWICH CONNECTICUT 06830

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Scorpio Tankers Inc. [ STNG ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Shares	864,531(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 606,461 shares awarded under 2013 Equity Incentive Plan of the Issuer which are currently unvested

	Cameron Mackey	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)