STOCK TITAN

Mountain Crest (MCAHU) insider entity buys shares and rights

Filing Impact
(Moderate)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

Mountain Crest Acquisition 6 Corp. reported an insider-related open-market purchase carried out through an entity controlled by CEO and CFO Dr. Suying Liu. The entity acquired 25,000 ordinary shares at $10.00 per share and 25,000 rights as part of units.

Each right automatically converts into one-fourth of one ordinary share upon completion of the company’s initial business combination, according to its prospectus. Following these transactions, the indirect holdings reported were 2,982,143 ordinary shares and 25,000 rights. Dr. Liu disclaims beneficial ownership of the reported securities beyond any pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider Liu Suying
Role CEO and CFO
Bought 50,000 shs ($250K)
Type Security Shares Price Value
Purchase Rights 25,000 $0.00 --
Purchase Ordinary shares 25,000 $10.00 $250K
Holdings After Transaction: Rights — 25,000 shares (Indirect, See Footnote); Ordinary shares — 2,982,143 shares (Indirect, See Footnote)
Footnotes (1)
  1. The reporting person acquired units, consisting of shares and rights. The rights automatically convert into one-fourth (1/4) of one ordinary share upon the consummation of the registrant's initial business combination, as described in the registrant's prospectus initially filed with the Securities Exchange Commission on April 6, 2026. Dr. Suying Liu controls Mountain Crest Holdings 6 LLC. As such, he may be deemed to have or share beneficial ownership of the securities held directly by Mountain Crest Holdings 6 LLC. Suying Liu disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest he may have therein, directly or indirectly
Ordinary shares purchased 25,000 shares Open-market purchase on 2026-05-01 at $10.00 per share
Purchase price per share $10.00/share Ordinary shares transaction on 2026-05-01
Rights purchased 25,000 rights Derivative transaction on 2026-05-01, acquired with units
Underlying shares from rights 6,250 shares Each right converts into one-fourth ordinary share after business combination
Shares held after transaction 2,982,143 shares Indirect ordinary share holdings following the reported transactions
Rights held after transaction 25,000 rights Indirect derivative holdings following the reported transactions
Net buy transactions 50,000 securities Transaction summary net-buy across shares and rights
open-market purchase financial
"transaction_action: open-market purchase"
An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.
rights financial
"The reporting person acquired units, consisting of shares and rights."
Rights are special privileges that give existing shareholders the opportunity to buy additional shares of a company's stock before they are offered to the public. They help investors maintain their ownership percentage and can be seen as a way to protect their investment stake. Think of rights like a VIP pass allowing current investors to purchase new shares first, ensuring they can preserve their influence in the company.
initial business combination financial
"The rights automatically convert into one-fourth (1/4) of one ordinary share upon the consummation of the registrant'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 or share beneficial ownership of the securities"
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
"disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest"
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*
Liu Suying

(Last)(First)(Middle)
C/O MOUNTAIN CREST ACQUISITION 6 CORP.,
524 BROADWAY, 11TH FLOOR,

(Street)
NEW YORK NEW YORK 10012

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Mountain Crest Acquisition 6 Corp. [ MCAH ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
CEO and CFO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026
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
Ordinary shares05/01/2026P25,000(1)A$102,982,143ISee Footnote(3)
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
Rights$005/01/2026P25,000 (2) (2)Ordinary Shares6,250(1)25,000ISee Footnote(3)
Explanation of Responses:
1. The reporting person acquired units, consisting of shares and rights.
2. The rights automatically convert into one-fourth (1/4) of one ordinary share upon the consummation of the registrant's initial business combination, as described in the registrant's prospectus initially filed with the Securities Exchange Commission on April 6, 2026.
3. Dr. Suying Liu controls Mountain Crest Holdings 6 LLC. As such, he may be deemed to have or share beneficial ownership of the securities held directly by Mountain Crest Holdings 6 LLC. Suying Liu disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest he may have therein, directly or indirectly
/s/ Suying Liu Managing Member05/05/2026
** 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)

FAQ

What did the insider entity associated with Mountain Crest (MCAHU) buy?

An entity controlled by Mountain Crest CEO and CFO Dr. Suying Liu bought 25,000 ordinary shares at $10.00 each and 25,000 rights. The rights and shares were acquired as units, combining equity and derivative exposure linked to future business combination completion.

How many Mountain Crest (MCAHU) shares does the filing show after the transaction?

After the transaction, the filing shows indirect holdings of 2,982,143 ordinary shares and 25,000 rights. These positions reflect securities held through Mountain Crest Holdings 6 LLC, which is controlled by Dr. Suying Liu, as described in the footnotes to the insider report.

At what price were Mountain Crest (MCAHU) shares purchased in this Form 4?

The reported open-market purchase price for the ordinary shares was $10.00 per share. The filing records 25,000 ordinary shares bought at this price, indicating a cash outlay for common equity separate from the associated rights received within the acquired units.

What are the rights reported in the Mountain Crest (MCAHU) Form 4?

The rights are derivative securities that automatically convert into one-fourth of one ordinary share each after Mountain Crest completes its initial business combination. For 25,000 rights, the underlying security is 6,250 ordinary shares, as specified in the transaction details and related footnote description.

Who actually holds the Mountain Crest (MCAHU) securities in this filing?

The securities are held by Mountain Crest Holdings 6 LLC, which is controlled by Dr. Suying Liu. The footnotes state he may be deemed to share beneficial ownership but disclaims ownership beyond any pecuniary interest, clarifying the indirect nature of his reported position.

How many total securities were bought in this Mountain Crest (MCAHU) insider transaction?

The transaction summary shows two buy transactions totaling 50,000 securities: 25,000 ordinary shares and 25,000 rights. Together, they represent both immediate equity exposure and contingent equity via rights that convert upon completion of the initial business combination.