Suying Liu Sole - 24 Jun 2026 Form 4 Insider Report for Mountain Crest Acquisition 6 Corp. (MCAH)

Reporting relationship: CEO and CFO, Director, 10%+ Owner
Issuer ticker: MCAH
Reported as of: 24 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 25 Jun 2026, 21:20:47 UTC
Prior SEC filing: 05 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Suying Liu Sole Member

Key filing fact

Suying Liu Sole filed Form 4 for Mountain Crest Acquisition 6 Corp. (MCAH) on 25 Jun 2026.

Key facts

This page summarizes Suying Liu Sole's Form 4 filing for Mountain Crest Acquisition 6 Corp. (MCAH).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 25 Jun 2026, 21:20.

Change

Previous filing in this sequence was filed on 05 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001811534 Primary reporting owner

Liu Suying

Relationship: CEO and CFO, Director, 10%+ Owner
Address: C/O MOUNTAIN CREST ACQUISITION 6 CORP.,, 524 BROADWAY, 11TH FLOOR,, NEW YORK
Signature: /s/ Suying Liu Sole Member
Signature date: 25 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MCAH transaction

Ordinary shares

Other

Transaction value
Shares: -385,714
Change %: -13%
Price
Shares after: 2,596,429
Date: 24 Jun 2026
Ownership: See Footnote
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Represents the forfeiture for no consideration of 385,714 ordinary shares, par value $0.0001 per share, of Mountain Crest Acquisition 6 Corp. (the "Issuer") held by Mountain Crest Holdings 6 LLC because the underwriters of the Issuer's initial public offering did not exercise their over-allotment option. The forfeited shares were the full 385,714 founder shares that were subject to forfeiture depending on the extent to which the underwriters' over-allotment option was exercised.

Footnote F2

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.