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Plum Acquisition (PLMK) sponsor swaps 5,649,999 Class B into Class A

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

Rhea-AI Filing Summary

Plum Partners IV, LLC, the sponsor and 10% owner of Plum Acquisition Corp. IV, elected on July 9, 2026 to convert 5,649,999 Class B ordinary shares into Class A ordinary shares, raising its Class A holdings to 6,659,999 shares and leaving 1 Class B share. An April 25, 2025 restructuring transferred 25,000 Class B shares to director Aidin Aghamiri for services. Chairman and CEO Kanishka Roy, as managing member of the sponsor, may be deemed to share beneficial ownership but disclaims it except for his pecuniary interest.

Positive

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Insider PLUM PARTNERS IV, LLC
Role 10% Owner
Type Security Shares Price Value
Conversion Class B ordinary shares 5,649,999 $0.00 --
Conversion Class A ordinary shares 5,649,999 -- --
Other Class B ordinary shares 25,000 $0.00 --
Holdings After Transaction: Class B ordinary shares — 1 shares (Direct); Class A ordinary shares — 6,659,999 shares (Direct)
Footnotes (1)
  1. Each Class B ordinary share, par value $0.0001, ("Class B Shares") will automatically convert into Class A ordinary shares, par value $0.0001, of the Issuer ("Class A Shares") at a ratio of no less than one-to-one following the consummation of the Issuer's initial business combination, or earlier at the option of the holder thereof, subject to adjustment as set forth in the Issuer's registration statement on Form S-1 (File No. 333-281144). The Class B Shares have no expiration date. The securities are held directly by Plum Partners IV, LLC (the "Sponsor"). Kanishka Roy, the Issuer's Chairman and Chief Executive Officer, is the managing member of the Sponsor, therefore, he may be deemed to have beneficial ownership of the securities held directly by the Sponsor. Mr. Roy disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein. Represents the Class B Shares transferred by the Sponsor to Aidin Aghamiri for services as a director. The reported Class B Shares converted into Class A Shares pursuant to an election by the Sponsor.
Class A shares acquired via conversion 5649999.0000 shares Class B to Class A conversion on 2026-07-09 by Plum Partners IV, LLC
Class A shares owned after conversion 6659999.0000 shares Direct Class A holdings of Plum Partners IV, LLC after 2026-07-09 transaction
Class B shares converted 5649999.0000 shares Class B ordinary shares converted into Class A ordinary shares on 2026-07-09
Class B shares remaining after conversion 1.0000 share Class B ordinary shares held by Plum Partners IV, LLC following the 2026-07-09 conversion
Class B shares transferred to director 25000.0000 shares Transferred by Plum Partners IV, LLC to director Aidin Aghamiri on 2025-04-25 for services
Class B ordinary shares financial
"Each Class B ordinary share, par value $0.0001, ("Class B Shares") will automatically convert"
Class B ordinary shares are a type of ownership stake in a company that typically come with different voting rights or privileges compared to other share classes. For investors, they represent a way to hold part of the company’s value and influence its decisions, often with fewer voting rights than Class A shares. Understanding these shares helps investors assess their level of control and potential returns within a company.
initial business combination financial
"will automatically convert into Class A ordinary shares ... following the consummation of the Issuer's initial business combination"
An initial business combination is the deal in which a special-purpose acquisition company (SPAC) merges with or acquires an operating business to bring that business onto public markets. Think of the SPAC as an empty shell that raises money from investors, then uses that cash to buy a private company—this transaction turns the private company into a public one and often changes its ownership, valuation, and access to capital, so investors should watch for shifts in risk, future growth prospects, and shareholder rights.
beneficial ownership financial
"he may be deemed to have beneficial ownership of the securities held directly by the Sponsor"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"Mr. Roy disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein"
derivative security financial
"transaction code description: Conversion of derivative security"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
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FAQ

What insider share conversion did Plum Partners IV report for PLMK?

Plum Partners IV, LLC converted 5,649,999 Class B ordinary shares of Plum Acquisition Corp. IV into Class A ordinary shares on July 9, 2026, as part of an elected conversion, significantly increasing its Class A position while reducing its Class B holdings to just one share.

How many PLMK Class A shares does Plum Partners IV now hold?

After the July 9, 2026 conversion, Plum Partners IV, LLC holds 6,659,999 Class A ordinary shares of Plum Acquisition Corp. IV. These are held directly by the sponsor entity, reflecting its large ownership stake following the conversion of founder Class B shares into Class A stock.

What happened to the PLMK Class B founder shares held by Plum Partners IV?

On July 9, 2026, Plum Partners IV, LLC converted 5,649,999 Class B ordinary shares into Class A shares, leaving 1 Class B share outstanding. The Class B shares automatically convert after the initial business combination or earlier at the holder’s option and have no expiration date.

What is the 25,000-share transaction disclosed for PLMK?

On April 25, 2025, Plum Partners IV, LLC transferred 25,000 Class B ordinary shares to director Aidin Aghamiri for services as a director. This was reported as an “other” transaction and reflects a compensation-related transfer of founder shares rather than a market trade.

Do PLMK Class B ordinary shares automatically convert, and do they expire?

Each PLMK Class B ordinary share automatically converts into Class A shares at a ratio of no less than one-to-one after the issuer’s initial business combination, or earlier at the holder’s option. The Class B shares have no expiration date, according to the terms described.
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*
PLUM PARTNERS IV, LLC

(Last)(First)(Middle)
C/O PLUM ACQUISITION CORP. IV
2021 FILLMORE ST. #2089

(Street)
SAN FRANCISCO CALIFORNIA 94115

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Plum Acquisition Corp, IV [ PLMK ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/25/2025
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
Class A ordinary shares07/09/2026C5,649,999A(1)6,659,999D(2)
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
Class B ordinary shares(1)04/25/2025J25,000(3) (1) (1)Class A ordinary shares25,000$0.005,650,000D(2)
Class B ordinary shares(1)07/09/2026C5,649,999(4) (1) (1)Class A ordinary shares5,649,999$0.001D(2)
Explanation of Responses:
1. Each Class B ordinary share, par value $0.0001, ("Class B Shares") will automatically convert into Class A ordinary shares, par value $0.0001, of the Issuer ("Class A Shares") at a ratio of no less than one-to-one following the consummation of the Issuer's initial business combination, or earlier at the option of the holder thereof, subject to adjustment as set forth in the Issuer's registration statement on Form S-1 (File No. 333-281144). The Class B Shares have no expiration date.
2. The securities are held directly by Plum Partners IV, LLC (the "Sponsor"). Kanishka Roy, the Issuer's Chairman and Chief Executive Officer, is the managing member of the Sponsor, therefore, he may be deemed to have beneficial ownership of the securities held directly by the Sponsor. Mr. Roy disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
3. Represents the Class B Shares transferred by the Sponsor to Aidin Aghamiri for services as a director.
4. The reported Class B Shares converted into Class A Shares pursuant to an election by the Sponsor.
/s/ Tricia Branker, Attorney-in-Fact07/13/2026
** 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)