Magnolia Oil & Gas director awarded 80 RSUs

Magnolia Oil & Gas director received additional fully vested RSUs tied to dividend equivalents, modestly increasing her direct Class A position.

Rhea-AI Filing Summary

Magnolia Oil & Gas Corp (symbol: MGY) is the issuer of record for a Form 4 filing submitted to the SEC. Acosta Arcilia reported acquisition or exercise transactions in this Form 4 filing.

Magnolia Oil & Gas Corp (MGY) director Arcilia Acosta received an award of 80 restricted stock units (RSUs) of Class A Common Stock on September 1, 2026. These fully vested RSUs were issued as dividend equivalent rights on previously deferred RSUs. Following this award, Acosta holds 134,721 shares/RSUs of Class A Common Stock directly, with each RSU representing a contingent right to receive one share.

Insider Trade Summary

Grant/Award: 80 shares

Grant/Award 1 txn

Insider Acosta Arcilia

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock F1	80	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 134,721 shares (Direct)

Footnotes (1)

1. F1. Reflects additional fully-vested restricted stock units ("RSUs") issued under the Magnolia Oil & Gas Corporation Long Term Incentive Plan with respect to dividend equivalent rights on previously deferred RSUs held by the reporting person, in connection with the payment of cash dividends to holders of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation on September 1, 2026. Each RSU represents a contingent right to receive one share of Class A Common Stock.

Key Figures

RSUs acquired: 80 shares Holdings after transaction: 134,721 shares Transaction price per RSU: $0.0000 +1 more

4 metrics

RSUs acquired 80 shares Grant/award of fully vested RSUs on September 1, 2026

Holdings after transaction 134,721 shares Direct ownership of Class A Common Stock/RSUs following the award

Transaction price per RSU $0.0000 Compensation-related RSU award, not a market purchase

Transaction date September 1, 2026 Date of dividend-related RSU grant

Key Terms

restricted stock units, dividend equivalent rights, Long Term Incentive Plan, contingent right

4 terms

restricted stock units financial

"Reflects additional fully-vested restricted stock units ("RSUs") issued under the Magnolia"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

dividend equivalent rights financial

"issued under the Magnolia Oil & Gas Corporation Long Term Incentive Plan with respect to dividend equivalent rights"

Dividend equivalent rights are promises that mirror the cash payments shareholders get from a company’s profits, but they are paid to holders of certain awards (like stock options or restricted stock units) rather than to actual shares. Think of them as a paycheck top‑up that matches dividends while the award is not yet a real stock, and they matter to investors because they add to employee compensation costs and potential share dilution, affecting company profitability and per‑share value.

Long Term Incentive Plan financial

"RSUs") issued under the Magnolia Oil & Gas Corporation Long Term Incentive Plan with"

A long term incentive plan is a company program that awards executives and key employees bonuses—often in stock, options, or cash—only if the business meets multi-year performance goals. It links management pay to company results—like tying a coach’s bonus to a team’s multi-season record—so investors monitor it for how leaders are motivated, potential share dilution, and signals about the company’s long-term priorities.

contingent right financial

"Each RSU represents a contingent right to receive one share of Class A Common Stock."

FAQ

What transaction did MGY director Arcilia Acosta report on this Form 4?

She reported an acquisition of 80 RSUs of Magnolia Oil & Gas Class A Common Stock on September 1, 2026, classified as a grant or award rather than a market purchase.

Why did Arcilia Acosta receive 80 additional RSUs of MGY stock?

The 80 fully vested RSUs were issued under the Magnolia Oil & Gas Corporation Long Term Incentive Plan as dividend equivalent rights on previously deferred RSUs, in connection with a cash dividend paid to holders of Class A Common Stock on September 1, 2026.

How many Magnolia Oil & Gas (MGY) shares or RSUs does Arcilia Acosta hold after this transaction?

After the award, Arcilia Acosta directly holds 134,721 shares or RSUs of Magnolia Oil & Gas Class A Common Stock, as reported in the filing.

What does each RSU granted to Arcilia Acosta represent for MGY?

Each RSU granted represents a contingent right to receive one share of Magnolia Oil & Gas Class A Common Stock, according to the company’s Long Term Incentive Plan disclosure.

Was the RSU award to the MGY director a cash transaction?

No. The transaction price per RSU was reported as $0.0000, indicating it was a compensation-related grant of RSUs rather than a cash purchase on the open market.

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

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Available on EDGAR 09/03/2026 - 05:51 PM Accepted by SEC EDGAR 09/03/2026 - 04:43 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^*

Acosta Arcilia

(Last) (First) (Middle)

C/O MAGNOLIA OIL & GAS CORPORATION

NINE GREENWAY PLAZA, SUITE 1300

(Street)

HOUSTON TEXAS 77046

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Magnolia Oil & Gas Corp [ MGY ]

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)
09/01/2026

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
Class A Common Stock	09/01/2026		A		80(1)	A	$0	134,721	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. Reflects additional fully-vested restricted stock units ("RSUs") issued under the Magnolia Oil & Gas Corporation Long Term Incentive Plan with respect to dividend equivalent rights on previously deferred RSUs held by the reporting person, in connection with the payment of cash dividends to holders of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation on September 1, 2026. Each RSU represents a contingent right to receive one share of Class A Common Stock.

	/s/ Timothy D. Yang, Attorney-in-Fact	09/03/2026
	** 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)