Scorpio Tankers COO sells 125,000 shares

Scorpio Tankers’ chief operating officer sold equity-award shares but retains a substantial stake, including a large unvested portion.

Rhea-AI Filing Summary

Scorpio Tankers Inc. (STNG) reported that Chief Operating Officer Mackey Cameron Keyser sold 125,000 Common Shares on September 17, 2026 in a sale reported as an open‑market or private transaction at an average price of $89.0258 per share. All shares sold had been awarded under the company’s 2013 Equity Incentive Plan. Following this transaction, he directly holds 739,531 Common Shares, all awarded under the same plan, including 442,484 unvested shares, and no Rule 10b5‑1 trading plan is reported.

Insider Trade Summary

Net Seller: 125,000 shares

Net Sell 1 txn

Insider Mackey Cameron Keyser

Role Chief Operating Officer

Sold 125,000 shs ($11.13M)

Type	Security	Shares	Price	Value
Sale	Common Shares F1, F2	125,000	$89.0258	$11.13M

Holdings After Transaction: Common Shares — 739,531 shares (Direct)

Footnotes (2)

1. F1. All the shares sold had been awarded pursuant to the 2013 Equity Incentive Plan of the Issuer.
2. F2. All the shares have been awarded pursuant to the 2013 Equity Incentive Plan of the Issuer and they include 442,484 which are currently unvested.

Key Figures

Shares sold: 125,000 shares Average sale price: $89.0258 per share Shares held after transaction: 739,531 shares +1 more

4 metrics

Shares sold 125,000 shares Common Shares sold by the Chief Operating Officer on September 17, 2026

Average sale price $89.0258 per share Price for the 125,000 Common Shares sold on September 17, 2026

Shares held after transaction 739,531 shares Direct Common Share holdings of the Chief Operating Officer following the sale

Unvested shares remaining 442,484 shares Portion of the Chief Operating Officer’s post‑transaction holdings that is currently unvested

Key Terms

Common Shares, 2013 Equity Incentive Plan, unvested

3 terms

Common Shares financial

"All the shares sold had been awarded pursuant to the 2013 Equity Incentive Plan of the Issuer."

Common shares are the basic units of ownership in a company that give holders a claim on profits and a right to vote on key matters, like electing the board. Think of them as membership cards in a club: they let you share in successes and losses, but in a bankruptcy or liquidation they are paid after creditors and preferred shareholders, so their value can swing more and matters for assessing risk and potential return.

2013 Equity Incentive Plan financial

"All the shares sold had been awarded pursuant to the 2013 Equity Incentive Plan of the Issuer."

unvested financial

"All the shares have been awarded pursuant to the 2013 Equity Incentive Plan of the Issuer and they include 442,484 which are currently unvested."

FAQ

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

What insider transaction did STNG’s Chief Operating Officer report on this Form 4?

The Chief Operating Officer, Mackey Cameron Keyser, reported selling 125,000 Common Shares on September 17, 2026 in a sale classified as an open‑market or private transaction at an average price of $89.0258 per share.

How many STNG shares does the COO hold after this reported sale?

After the reported sale, the Chief Operating Officer directly holds 739,531 Common Shares. According to the disclosure, all of these shares were awarded under the 2013 Equity Incentive Plan of Scorpio Tankers Inc.

How many of the COO’s remaining STNG shares are unvested?

Of the 739,531 Common Shares held by the Chief Operating Officer after the transaction, the disclosure states that 442,484 shares are currently unvested under the 2013 Equity Incentive Plan.

Were the STNG shares sold by the COO part of an equity incentive award?

Yes. The filing notes that all 125,000 shares sold had been awarded pursuant to the 2013 Equity Incentive Plan of Scorpio Tankers Inc., indicating they originated from the company’s equity compensation program.

Was the STNG insider sale made under a Rule 10b5-1 trading plan?

No. The disclosure indicates that no Rule 10b5‑1 trading plan is reported for this transaction, meaning the sale is not described as having been executed under a pre‑arranged trading plan.

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

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Available on EDGAR 09/18/2026 - 12:39 PM Accepted by SEC EDGAR 09/18/2026 - 12:38 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mackey Cameron Keyser

(Last) (First) (Middle)

240 GREENWICH AVE., SUITE 300

C/O SCORPIO TANKERS

(Street)

GREENWICH CONNECTICUT 06830

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/17/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Shares	09/17/2026		S		125,000(1)	D	$89.0258	739,531(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. All the shares sold had been awarded pursuant to the 2013 Equity Incentive Plan of the Issuer.

2. All the shares have been awarded pursuant to the 2013 Equity Incentive Plan of the Issuer and they include 442,484 which are currently unvested.

	Mackey Cameron Keyser	09/18/2026
	** 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 4 (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 4: SEC 1474 (03-26)