Research Alliance Corp IV (RACD) director discloses 30,000 convertible Class B shares

Rhea-AI Filing Summary

Alan A. Musso, a director of Research Alliance Corp IV, reports beneficial ownership of 30,000 Class B Ordinary Shares, held directly. These Class B shares have no expiration date and will automatically or, at the holder’s option, convert into 30,000 Class A Ordinary Shares on a one-for-one basis, subject to specified anti-dilution adjustments.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Musso Alan A

Role Director

Type	Security	Shares	Price	Value
holding	Class B Ordinary Shares F1	--	--	--

Holdings After Transaction: Class B Ordinary Shares — 30,000 shares (Direct)

Footnotes (1)

1. F1. Class B Ordinary Shares have no expiration date and will automatically convert into Class A Ordinary Shares of the Issuer at the time of the Issuer's initial business combination on a one-for-one basis (subject to adjustment for sub-divisions, share dividends, reorganizations, recapitalizations and the like), or at any time prior thereto at the option of the holder on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights.

Key Figures

Class B Ordinary Shares held: 30,000 shares Underlying Class A Ordinary Shares: 30,000 shares Conversion ratio: 1-for-1

3 metrics

Class B Ordinary Shares held 30,000 shares Beneficial ownership reported by director Alan A. Musso

Underlying Class A Ordinary Shares 30,000 shares Shares issuable upon one-for-one conversion of Class B Ordinary Shares

Conversion ratio 1-for-1 Class B Ordinary Shares convert into Class A Ordinary Shares on a one-for-one basis

Key Terms

Class B Ordinary Shares, Class A Ordinary Shares, initial business combination, anti-dilution rights

4 terms

Class B Ordinary Shares financial

"Class B Ordinary Shares have no expiration date and 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.

Class A Ordinary Shares financial

"convert into Class A Ordinary Shares of the Issuer at the time"

Class A ordinary shares are a type of ownership stake in a company that typically grants voting rights to shareholders, allowing them to have a say in important company decisions. They often come with priority in receiving dividends or profits, making them attractive to investors seeking influence and potential income. These shares help distinguish different levels of ownership and rights within a company's stock structure.

initial business combination financial

"at the time of the Issuer's initial business combination on a one-for-one"

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.

anti-dilution rights financial

"one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights"

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

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FAQ

What insider ownership did RACD director Alan A. Musso report?

Alan A. Musso reported beneficial ownership of 30,000 Class B Ordinary Shares of Research Alliance Corp IV. These are held directly and are convertible into 30,000 Class A Ordinary Shares on a one-for-one basis, subject to anti-dilution adjustments described in the footnote.

What are Class B Ordinary Shares of Research Alliance Corp IV (RACD)?

The company’s Class B Ordinary Shares have no expiration date and automatically convert into Class A Ordinary Shares at the time of the issuer’s initial business combination, or earlier at the holder’s option, on a one-for-one basis, subject to specified anti-dilution rights.

How many Class A shares could Alan A. Musso’s RACD holdings become?

Alan A. Musso’s 30,000 Class B Ordinary Shares are stated to be convertible into 30,000 Class A Ordinary Shares of Research Alliance Corp IV. The conversion is on a one-for-one basis and is subject to adjustment under anti-dilution provisions.

Does Alan A. Musso hold his RACD shares directly or indirectly?

The filing lists Alan A. Musso’s 30,000 Class B Ordinary Shares as held with direct ownership. The ownership code is shown as direct, and no intermediary entity or indirect ownership structure is indicated in the disclosure for this position.

Do Musso’s Class B Ordinary Shares in RACD have an expiration date?

The footnote states that the Class B Ordinary Shares have no expiration date. Instead, they will automatically convert into Class A Ordinary Shares at the issuer’s initial business combination or can convert earlier at the holder’s option, on a one-for-one basis with anti-dilution adjustments.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Musso Alan A

(Last) (First) (Middle)

C/O RESEARCH ALLIANCE CORPORATION IV

600 FIFTH AVENUE, 23RD FLOOR

(Street)

NEW YORK NEW YORK 10020

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
07/10/2026

3. Issuer Name and Ticker or Trading Symbol
Research Alliance Corp IV [ RACD ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

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

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

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class B Ordinary Shares	(1)	(1)	Class A Ordinary Shares	30,000	(1)	D

Explanation of Responses:

1. Class B Ordinary Shares have no expiration date and will automatically convert into Class A Ordinary Shares of the Issuer at the time of the Issuer's initial business combination on a one-for-one basis (subject to adjustment for sub-divisions, share dividends, reorganizations, recapitalizations and the like), or at any time prior thereto at the option of the holder on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights.

	/s/ Henry Stusnick, Attorney-in-Fact	07/10/2026
	** 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 5 (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 3: SEC 1473 (03-26)