As of November 10, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Mountain Crest Acquisition 6. The largest reported stake is Mountain Crest Holdings 6 LLC's, at 29.98%. 7 filings are on record since May 7, 2026 (Schedule 13G, June 25, 2026).
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Key facts
- · Reporting person: The Goldman Sachs Group, Inc. · Sole voting: 0 · Shared voting: 39,411 · Sole dispositive: 0 · Shared dispositive: 39,411 · SCHEDULE 13G/A, 2026-11-09
- · Reporting person: Highbridge Capital Management, LLC · Sole voting: 570,000 · Shared voting: 0 · Sole dispositive: 570,000 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-14
- · Reporting person: Harraden Circle Investments, LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-14
- · Reporting person: Mizuho Financial Group, Inc. · Sole voting: 468,506 · Shared voting: 0 · Sole dispositive: 468,506 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-13
- · Holder: The Goldman Sachs Group, Inc. · Percent: 6.4% · SCHEDULE 13G
Mountain Crest Acquisition 6 has 7 Schedule 13D or 13G filings on record since 2026-05-07. 3 holders' latest filing reports 5% or more of ordinary shares, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Mountain Crest Holdings 6 LLC | 29.98% | 2,596,429 | SCHEDULE 13G, 2026-06-25 | 2026-05-01 |
| Highbridge Capital Management, LLC | 6.3% | 570,000 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Mizuho Financial Group, Inc. | 5.2% | 468,506 | SCHEDULE 13G, 2026-08-13 | 2026-06-30 |
| The Goldman Sachs Group, Inc. | 0.5% | 39,411 | SCHEDULE 13G/A, 2026-11-09 | 2026-09-30 |
| Harraden Circle Investments, LLC | 0% | 0 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
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Keep reading
More on Mountain Crest Acquisition 6 and the records around it.
Companies that share a holder
- Mizuho Financial Group, Inc. also filed stake reports on 74 other companies: Aeon Acquisition I Corp. (Aug 2026), Alpex Acquisition Corp (Aug 2026), Aperture AC (Aug 2026)
- Highbridge Capital Management, LLC also filed stake reports on 83 other companies: Aeon Acquisition I Corp. (Aug 2026), Alpex Acquisition Corp (Aug 2026), Aperture AC (Aug 2026)
- Harraden Circle Investments, LLC also filed stake reports on 95 other companies: Calisa Acquisition Corp (Nov 2026), Texas Ventures Acquisition III Corp (Nov 2026), Columbus Acquisition Corp (Oct 2026)
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What the Full Report on Mountain Crest Acquisition 6 covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Mountain Crest Holdings 6 LLC | 2,596,429 | 0 | 2,596,429 | 0 | SCHEDULE 13G, 2026-06-25 |
| Suying Liu | 2,596,429 | 0 | 2,596,429 | 0 | SCHEDULE 13G, 2026-06-25 |
| Highbridge Capital Management, LLC | 570,000 | 0 | 570,000 | 0 | SCHEDULE 13G, 2026-08-14 |
| Mizuho Financial Group, Inc. | 468,506 | 0 | 468,506 | 0 | SCHEDULE 13G, 2026-08-13 |
| The Goldman Sachs Group, Inc. | 0 | 39,411 | 0 | 39,411 | SCHEDULE 13G/A, 2026-11-09 |
| Goldman Sachs & Co. LLC | 0 | 39,411 | 0 | 39,411 | SCHEDULE 13G/A, 2026-11-09 |
| Harraden Circle Investments, LLC | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-08-14 |
| Frederick V. Fortmiller, Jr. | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-08-14 |
The latest filing identifies Mountain Crest Acquisition 6 by CUSIP G62980100 and gives its principal executive office as 524 Broadway, 11th Floor, New York (SCHEDULE 13G/A, 2026-11-09).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-05-07 | Harraden Circle Investments, LLC | 5.48% | SCHEDULE 13G |
| 2026-06-25 | Mountain Crest Holdings 6 LLC | 29.98% | SCHEDULE 13G |
| 2026-08-12 | The Goldman Sachs Group, Inc. | 6.4% | SCHEDULE 13G |
| 2026-08-13 | Mizuho Financial Group, Inc. | 5.2% | SCHEDULE 13G |
| 2026-08-14 | Highbridge Capital Management, LLC | 6.3% | SCHEDULE 13G |
| 2026-08-14 | Harraden Circle Investments, LLC | 0% | SCHEDULE 13G/A |
| 2026-11-09 | The Goldman Sachs Group, Inc. | 0.5% | SCHEDULE 13G/A |
Questions about who owns Mountain Crest Acquisition 6
Who owns Mountain Crest Acquisition 6?
On this page, 3 holders' latest ownership filings report 5% or more of Mountain Crest Acquisition 6: Mountain Crest Holdings 6 LLC (29.98%, Schedule 13G, filed 2026-06-25), Highbridge Capital Management, LLC (6.3%, Schedule 13G, filed 2026-08-14) and Mizuho Financial Group, Inc. (5.2%, Schedule 13G, filed 2026-08-13).
Who are the largest shareholders of Mountain Crest Acquisition 6?
By the share each holder's latest filing reports, the largest holders of Mountain Crest Acquisition 6 on this page are Mountain Crest Holdings 6 LLC (29.98%), Highbridge Capital Management, LLC (6.3%) and Mizuho Financial Group, Inc. (5.2%).
When did Mountain Crest Holdings 6 LLC buy into Mountain Crest Acquisition 6?
The filings give report dates, not purchase dates. The earliest filing from Mountain Crest Holdings 6 LLC on this page is the Schedule 13G, filed 2026-06-25, reporting 29.98%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 7 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Mountain Crest Acquisition 6
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 30, 2026 | IPO filing, Form 424B4 | — | IPO filings | Source |
| April 6, 2026 | IPO filing, Form S-1 | — | IPO filings | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.