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  4. [Form 4] Montauk Renewables, Inc. Insider Trading Activity

Montauk Renewables (MNTK) CLO granted 302,982 RSUs in new equity award

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Ciroli John reported acquisition or exercise transactions in this Form 4 filing.

Montauk Renewables, Inc. Chief Legal Officer John Ciroli received an equity award of 302,982 shares of Common Stock in the form of Restricted Stock Units (RSUs) on May 20, 2026. The RSUs vest ratably on the third, fourth and fifth anniversaries of the grant date, and each RSU will settle into one share of common stock. Following this award, Ciroli now holds 470,772 shares of Common Stock, including 302,982 RSUs.

Positive

  • None.

Negative

  • None.
Insider Ciroli John
Role Chief Legal Officer
Type Security Shares Price Value
Grant/Award Common Stock 302,982 $0.00 --
Holdings After Transaction: Common Stock — 470,772 shares (Direct, null)
Footnotes (1)
  1. Represents Restricted Stock Units ("RSUs"). The grant of RSUs shall vest ratably on the third, fourth and fifth anniversary of date of grant. Each RSU is settled solely for one share of Common Stock. Includes 302,982 RSUs.
RSU grant size 302,982 shares Restricted Stock Units granted on May 20, 2026
Post-transaction holdings 470,772 shares Total Common Stock held after RSU grant
Grant price per share $0.0000 per share Accounting grant price reported for RSUs
Vesting schedule 3rd, 4th, 5th anniversaries RSUs vest ratably over three future anniversaries
Restricted Stock Units ("RSUs") financial
"Represents Restricted Stock Units ("RSUs"). The grant of RSUs shall vest ratably..."
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
vest ratably financial
"The grant of RSUs shall vest ratably on the third, fourth and fifth anniversary..."
settled solely for one share of Common Stock financial
"Each RSU is settled solely for one share of Common Stock."
Grant, award, or other acquisition financial
"transaction_code_description: Grant, award, or other acquisition"
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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*
Ciroli John
(Last)(First)(Middle)
5313 CAMPBELLS RUN ROAD, SUITE 200
(Street)
PITTSBURGH PENNSYLVANIA 15205
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Montauk Renewables, Inc. [ MNTK ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Legal Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock05/20/2026A(1)302,982A$0.00470,772(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Represents Restricted Stock Units ("RSUs"). The grant of RSUs shall vest ratably on the third, fourth and fifth anniversary of date of grant. Each RSU is settled solely for one share of Common Stock.
2. Includes 302,982 RSUs.
/s/ John Ciroli, by Power of Attorney05/22/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

What did Montauk Renewables (MNTK) disclose about John Ciroli’s equity grant?

Montauk Renewables disclosed that Chief Legal Officer John Ciroli received 302,982 Restricted Stock Units (RSUs). These RSUs represent a form of equity compensation and will convert into shares of Common Stock as they vest over time.

How many Montauk Renewables (MNTK) shares does John Ciroli hold after this Form 4?

After the reported RSU grant, John Ciroli holds 470,772 shares of Montauk Renewables Common Stock. This total includes 302,982 RSUs that will convert into shares as they vest on the specified future anniversaries.

How do the new RSUs for Montauk Renewables (MNTK) executive vest over time?

The 302,982 Montauk Renewables RSUs granted to Chief Legal Officer John Ciroli vest ratably on the third, fourth and fifth anniversaries of the grant date. At each vesting date, a portion converts into Common Stock on a one-for-one basis.

Was John Ciroli’s Montauk Renewables (MNTK) RSU grant an open-market stock purchase?

No. The Form 4 shows transaction code “A,” meaning the 302,982 shares were acquired as a grant or award of Restricted Stock Units. This is compensation-related, not an open-market stock purchase by the executive.

What does each Montauk Renewables (MNTK) RSU represent in this Form 4 filing?

Each RSU granted to John Ciroli represents the right to receive one share of Montauk Renewables Common Stock upon vesting. The award is settled solely in shares and carries no purchase price per share in the transaction.