[Form 3] Indigo Acquisition Corp. Unit Initial Statement of Beneficial Ownership

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider CASSEL JAMES S

Role CEO

Type	Security	Shares	Price	Value
holding	Rights	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Rights — 22,929 shares (Indirect, by Indigo Sponsor Group, LLC); Ordinary Shares — 2,214,286 shares (Indirect, by Indigo Sponsor Group, LLC)

Footnotes (1)

1. Includes 229,286 shares contained within units that Indigo Sponsor Group, LLC purchased in connection with the Issuer's initial public offering ("IPO"). These securities are owned directly by Indigo Sponsor Group, LLC of which Mr. Cassel is a managing member. Accordingly, Mr. Cassel is deemed to be the beneficial owner of such securities. Mr. Cassel disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. Represents rights contained within units that Indigo Sponsor Group, LLC purchased in connection with the IPO as described in footnote 1. Each right will convert automatically into 1/10 of one ordinary share at the closing of an initial business combination by the Issuer.

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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

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1. Name and Address of Reporting Person^*

CASSEL JAMES S

(Last) (First) (Middle)

ONE ALHAMBRA PLAZA

STE 1410

(Street)

CORAL GABLES FL 33134

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
06/30/2025

3. Issuer Name and Ticker or Trading Symbol
Indigo Acquisition Corp. [ INACU ]

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

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

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

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)
Ordinary Shares	2,214,286(1)	I(2)	by Indigo Sponsor Group, LLC(2)

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
Rights(3)	(3)	(3)	Ordinary Shares	22,929(3)	$0(3)	I(3)	by Indigo Sponsor Group, LLC

Explanation of Responses:

1. Includes 229,286 shares contained within units that Indigo Sponsor Group, LLC purchased in connection with the Issuer's initial public offering ("IPO").

2. These securities are owned directly by Indigo Sponsor Group, LLC of which Mr. Cassel is a managing member. Accordingly, Mr. Cassel is deemed to be the beneficial owner of such securities. Mr. Cassel disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

3. Represents rights contained within units that Indigo Sponsor Group, LLC purchased in connection with the IPO as described in footnote 1. Each right will convert automatically into 1/10 of one ordinary share at the closing of an initial business combination by the Issuer.

	/s/ James S. Cassel	07/30/2025
	** 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).
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