Sec Form 4 Filing - Fifth Era Acquisition Sponsor I LLC @ Fifth Era Acquisition Corp I - 2025-09-15

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Fifth Era Acquisition Sponsor I LLC 2. Issuer Name and Ticker or Trading Symbol Fifth Era Acquisition Corp I [ FERA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O FIFTH ERA ACQUISITION CORP I, PO BOX 1093 BOUNDARY HALL CRICKET SQUARE 3. Date of Earliest Transaction (MM/DD/YY) 09/15/2025 (Street) GRAND CAYMAN, E9KY1-1102 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Class B ordinary shares ( 1 ) ( 1 ) 09/04/2025 S 922,313 ( 2 ) ( 1 ) ( 1 ) Class A Ordinary Shares 922,313 ( 2 ) ( 2 ) 6,744,354 ( 3 ) ( 4 ) D ( 4 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Fifth Era Acquisition Sponsor I LLC C/O FIFTH ERA ACQUISITION CORP I PO BOX 1093 BOUNDARY HALL CRICKET SQUARE GRAND CAYMAN, E9KY1-1102 X Fifth Era Management Sponsor I LLC C/O FIFTH ERA ACQUISITION CORP I PO BOX 1093 BOUNDARY HALL CRICKET SQUARE GRAND CAYMAN, E9KY1-1102 X Le Merle Matthew C C/O FIFTH ERA ACQUISITION CORP I PO BOX 1093 BOUNDARY HALL CRICKET SQUARE GRAND CAYMAN, E9KY1-1102 X DAVIS ALISON C/O FIFTH ERA ACQUISITION CORP I PO BOX 1093 BOUNDARY HALL CRICKET SQUARE GRAND CAYMAN, E9KY1-1102 X Mechigian Mitchell C/O FIFTH ERA ACQUISITION CORP I PO BOX 1093 BOUNDARY HALL CRICKET SQUARE GRAND CAYMAN, E9KY1-1102 X Signatures /s/ Mitchell Mechigian, Managing Member of Fifth Era Acquisition Sponsor I LLC 09/16/2025 Signature of Reporting Person Date /s/ Mitchell Mechigian, Managing Member of Fifth Era Management Sponsor I LLC 09/16/2025 Signature of Reporting Person Date /s/ Matthew Le Merle 09/16/2025 Signature of Reporting Person Date /s/ Alison Davis 09/16/2025 Signature of Reporting Person Date /s/ Mitchell Mechigian 09/16/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )As described in the registration statement on Form S-1 (File No. 333-284793) of Fifth Era Acquisition Corp I (the "Issuer") under the heading "Description of Securities--Founder Shares," the Class B ordinary shares, par value $0.0001 per share, of the Issuer ("Class B Ordinary Shares") will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the Issuer ("Class A Ordinary Shares") at the time of the Issuer's initial business combination, or at any time prior to the Issuer's initial business combination, at the option of the holder, on a one-for-one basis, subject to certain adjustments. The Class B ordinary shares have no expiration date. ( 2 )Represents 922,313 Class B Ordinary Shares transferred by Fifth Era Acquisition Sponsor I LLC (the "Sponsor") to Mitchell Mechigian. ( 3 )Excludes the 922,313 Class B Ordinary Shares held by Mr. Mechigian in his individual capacity, as reported under item 2 above. ( 4 )The Sponsor is the record holder of the shares reported herein. Fifth Era Management Sponsor I LLC ("FEMS") is the managing member of the Sponsor. Matthew Le Merle, Alison Davis and Mitchell Mechigian are the managing members of FEMS and hold voting and investment discretion with respect to the Class B Ordinary Shares held of record by the Sponsor. As such, Mr. Le Merle, Ms. Davis and Mr. Mechigian may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Mr. Le Merle, Ms. Davis and Mr. Mechigian disclaim any beneficial ownership except to the extent of their pecuniary interest therein.

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).

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