As of November 10, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Flag Ship Acquisition Corporation. The largest reported stake is Mizuho Financial Group, Inc.'s, at 8.1%. 10 filings are on record since August 13, 2025 (Schedule 13G/A, August 13, 2025).
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Key facts
- · Reporting person: W. R. Berkley Corporation · Sole voting: 0 · Shared voting: 198,813 · Sole dispositive: 0 · Shared dispositive: 198,813 · SCHEDULE 13G, 2026-11-09
- · Holder: W. R. Berkley Corporation · Percent: 0% · SCHEDULE 13G/A
- · Reporting person: Karpus Management, Inc. · Sole voting: 2,482 · Shared voting: 0 · Sole dispositive: 2,482 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-06-05
- · Reporting person: CVI Investments, Inc. · Sole voting: 0 · Shared voting: 306,569 · Sole dispositive: 0 · Shared dispositive: 306,569 · SCHEDULE 13G, 2026-05-19
- · Holder: W.R. Berkley Corporation · Percent: 8.6% · SCHEDULE 13G/A
Flag Ship Acquisition Corporation has 10 Schedule 13D or 13G filings on record since 2025-08-13. 3 holders' latest filing reports 5% or more of ordinary shares, $0.001 par value per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Mizuho Financial Group, Inc. | 8.1% | 718,470 | SCHEDULE 13G/A, 2025-08-13 | 2025-06-30 |
| CVI Investments, Inc. | 6.1% | 306,569 | SCHEDULE 13G, 2026-05-19 | 2025-12-31 |
| W. R. Berkley Corporation | 5.7% | 198,813 | SCHEDULE 13G, 2026-11-09 | 2026-09-30 |
| Wolverine Asset Management LLC | 2.93% | 147,420 | SCHEDULE 13G/A, 2025-10-10 | 2025-09-30 |
| Karpus Management, Inc. | 0.05% | 2,482 | SCHEDULE 13G/A, 2026-06-05 | 2026-05-29 |
| First Trust Merger Arbitrage Fund | 0% | 0 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
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Keep reading
More on Flag Ship Acquisition Corporation and the records around it.
Companies that share a holder
- First Trust Merger Arbitrage Fund also filed stake reports on 47 other companies: TCW SPECIALTY LENDING LLC (Sep 2026), Blue Foundry Bancorp (Aug 2026), Centurion Acquisition Corp. (Aug 2026)
- CVI Investments, Inc. also filed stake reports on 48 other companies: Pine Tree Acquisition Corp. (Oct 2026), Sunshine Biopharma Inc. (Oct 2026), Outlook Therapeutics, Inc. (Aug 2026)
- 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)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| CVI Investments, Inc. | 0 | 306,569 | 0 | 306,569 | SCHEDULE 13G, 2026-05-19 |
| Heights Capital Management, Inc. | 0 | 306,569 | 0 | 306,569 | SCHEDULE 13G, 2026-05-19 |
| W. R. Berkley Corporation | 0 | 198,813 | 0 | 198,813 | SCHEDULE 13G, 2026-11-09 |
| Berkley Insurance Company | 0 | 198,813 | 0 | 198,813 | SCHEDULE 13G, 2026-11-09 |
| Karpus Management, Inc. | 2,482 | 0 | 2,482 | 0 | SCHEDULE 13G/A, 2026-06-05 |
The latest filing identifies Flag Ship Acquisition Corporation by CUSIP G3530C109 and gives its principal executive office as 26 Broadway, Suite 934, New York, NY 10004 (SCHEDULE 13G, 2026-11-09).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-13 | Mizuho Financial Group, Inc. | 8.1% | SCHEDULE 13G/A |
| 2025-08-14 | Karpus Management, Inc. | 8.89% | SCHEDULE 13G/A |
| 2025-10-07 | Karpus Management, Inc. | 14.7% | SCHEDULE 13G/A |
| 2025-10-10 | Wolverine Asset Management LLC | 2.93% | SCHEDULE 13G/A |
| 2025-11-14 | First Trust Merger Arbitrage Fund | 0% | SCHEDULE 13G/A |
| 2026-05-07 | W.R. Berkley Corporation | 8.6% | SCHEDULE 13G/A |
| 2026-05-19 | CVI Investments, Inc. | 6.1% | SCHEDULE 13G |
| 2026-06-05 | Karpus Management, Inc. | 0.05% | SCHEDULE 13G/A |
| 2026-08-06 | W. R. Berkley Corporation | 0% | SCHEDULE 13G/A |
| 2026-11-09 | W. R. Berkley Corporation | 5.7% | SCHEDULE 13G |
Questions about who owns Flag Ship Acquisition Corporation
Who owns Flag Ship Acquisition Corporation?
On this page, 3 holders' latest ownership filings report 5% or more of Flag Ship Acquisition Corporation: Mizuho Financial Group, Inc. (8.1%, Schedule 13G/A, filed 2025-08-13), CVI Investments, Inc. (6.1%, Schedule 13G, filed 2026-05-19) and W. R. Berkley Corporation (5.7%, Schedule 13G, filed 2026-11-09).
Who are the largest shareholders of Flag Ship Acquisition Corporation?
By the share each holder's latest filing reports, the largest holders of Flag Ship Acquisition Corporation on this page are Mizuho Financial Group, Inc. (8.1%), CVI Investments, Inc. (6.1%) and W. R. Berkley Corporation (5.7%).
When did Mizuho Financial Group, Inc. buy into Flag Ship Acquisition Corporation?
The filings give report dates, not purchase dates. The earliest filing from Mizuho Financial Group, Inc. on this page is the Schedule 13G/A, filed 2025-08-13, reporting 8.1%. That earliest filing is itself an amendment, which updates an earlier report.
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%); 10 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.
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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.