Southern Copper director sells 100 shares at $210

SOUTHERN COPPER CORP (SCCO) director Luis Miguel Palomino Bonilla reported selling 100 shares of common stock on September 8, 2026 in a sale described as occurring in the open market or a private transaction at $210.00 per share.

Rhea-AI Filing Summary

SOUTHERN COPPER CORP (SCCO) director Luis Miguel Palomino Bonilla reported selling 100 shares of common stock on September 8, 2026 in a sale described as occurring in the open market or a private transaction at $210.00 per share. After this transaction, he directly holds 1,503 shares of Southern Copper common stock, and no Rule 10b5-1 trading plan is reported for this sale.

Insider Trade Summary

Net Seller: 100 shares

Net Sell 1 txn

Insider PALOMINO BONILLA LUIS MIGUEL

Role Director

Sold 100 shs ($21K)

Type	Security	Shares	Price	Value
Sale	Common Stock	100	$210.00	$21K

Holdings After Transaction: Common Stock — 1,503 shares (Direct)

Key Figures

Shares sold: 100 shares Sale price per share: $210.00 per share Shares held after transaction: 1,503 shares +1 more

4 metrics

Shares sold 100 shares Common stock sold by director on September 8, 2026

Sale price per share $210.00 per share Price received for Southern Copper common stock sale on September 8, 2026

Shares held after transaction 1,503 shares Director’s direct holdings of Southern Copper common stock following the sale

Net shares sold in filing 100 shares Total net shares sold across all reported transactions in this Form 4

Key Terms

Common Stock, open market or private transaction, Rule 10b5-1 trading plan

3 terms

Common Stock financial

"security identified as Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open market or private transaction financial

"described as a sale in the open market or private transaction"

Rule 10b5-1 trading plan regulatory

"no Rule 10b5-1 trading plan is reported for this sale"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

FAQ

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

What insider transaction did SCCO director Luis Miguel Palomino Bonilla report?

He reported a sale of 100 shares of Southern Copper common stock on September 8, 2026 in a transaction described as an open market or private sale at $210.00 per share.

How many SCCO shares does Luis Miguel Palomino Bonilla hold after this Form 4?

After the reported transaction, Luis Miguel Palomino Bonilla directly holds 1,503 shares of Southern Copper common stock, according to the Form 4 disclosure.

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

No. The filing indicates that no Rule 10b5-1 trading plan is reported in connection with this sale by director Luis Miguel Palomino Bonilla.

What price did the SCCO director receive for the shares sold?

The 100 Southern Copper common shares were sold at a price of $210.00 per share, as stated in the Form 4.

What type of security did the SCCO director sell in this transaction?

Luis Miguel Palomino Bonilla sold Common Stock of Southern Copper, in a transaction described as a sale in the open market or a private transaction.

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

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Available on EDGAR 09/10/2026 - 09:00 AM Accepted by SEC EDGAR 09/10/2026 - 09:00 AM 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^*

PALOMINO BONILLA LUIS MIGUEL

(Last) (First) (Middle)

C/O SOUTHERN COPPER CORPORATION

7310 NORTH 16TH ST. SUITE 135

(Street)

PHOENIX ARIZONA 85020

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
SOUTHERN COPPER CORP/ [ SCCO ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2026

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 Stock	09/08/2026		S		100	D	$210	1,503	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:

	/s/ Andres Carlos Ferrero, Attorney-in-Fact	09/10/2026
	** 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)