Mountain Crest Acquisition Corp. V (MCAGU) insider reports 200,000-share sale

Rhea-AI Filing Summary

Mountain Crest Acquisition Corp. V insider Suying Liu, who serves as CEO, CFO, director and a 10% owner, reported a stock transaction. On 12/30/2025, Liu indirectly disposed of 200,000 shares of common stock at $5 per share through a sale coded "S." Following this transaction, Liu indirectly beneficially owned 1,865,800 common shares, held through Mountain Crest Global Holdings LLC.

The filing notes that the purchase price for the shares has been received, but the shares will only be transferred to the purchaser upon consummation of the company’s initial business combination. This structure ties the actual share transfer to completion of the business combination process.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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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^*

Liu Suying

(Last) (First) (Middle)

524 BROADWAY 11TH FLOOR

(Street)

NEW YORK NY 10012

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Mountain Crest Acquisition Corp. V [ MCAGU ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/30/2025

4. 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 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/30/2025		S(1)		200,000	D	$5	1,865,800	I	See Footnote(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The purchase price for the shares has been received, however, the shares will only be transferred to purchaser upon the consummation of the issuer's initial business combination.

2. Shares owned by Mountain Crest Global Holdings LLC, over which Suying Liu owns sole voting and dispositive power.

	By: /s/ Suying Liu	01/02/2026
	** 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 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.
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FAQ

What insider transaction did Suying Liu report for MCAG/MCAGU?

Suying Liu reported an indirect sale of 200,000 shares of common stock of Mountain Crest Acquisition Corp. V on 12/30/2025 at a price of $5 per share.

What is Suying Liu’s role and relationship to Mountain Crest Acquisition Corp. V (MCAG/MCAGU)?

Suying Liu is listed as a director, CEO, CFO, and a 10% owner of Mountain Crest Acquisition Corp. V.

How many MCAG/MCAGU shares does Suying Liu own after this transaction?

After the reported transaction, Suying Liu beneficially owned 1,865,800 shares of common stock indirectly through Mountain Crest Global Holdings LLC.

How are the shares related to this MCAG/MCAGU transaction held?

The shares are owned by Mountain Crest Global Holdings LLC, over which Suying Liu has sole voting and dispositive power, making them indirectly owned by Liu.

When will the sold MCAG/MCAGU shares actually transfer to the purchaser?

The filing states that the purchase price has been received, but the shares will only be transferred to the purchaser upon consummation of the issuer's initial business combination.

What type of security was involved in Suying Liu’s MCAG/MCAGU transaction?

The transaction involved common stock of Mountain Crest Acquisition Corp. V, reported in the non-derivative securities table.