Rubico Inc. has 11 Schedule 13D or 13G filings on record since 2025-08-08. No holder's latest filing reports 5% or more. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Family Trading Inc. | 3.32% | 1,465,359 | SCHEDULE 13D/A, 2025-11-17 | 2025-11-12 |
| L1 Capital Global Opportunities Master Fund, Ltd. | 0% | 0 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| Arena Investors, LP | 0% | 0 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
| Trillium Trading, LLC | 0% | 0 | SCHEDULE 13G/A, 2026-06-12 | 2026-06-11 |
Purpose of Transaction (Item 4)
Family Trading Inc.
There are no material changes to this Item 4 from the Existing Schedule 13D.Item 4 of the SCHEDULE 13D/A filed 2025-11-17
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-08 | Family Trading Inc. | 46.8% | SCHEDULE 13D |
| 2025-10-16 | Family Trading Inc. | 45.75% | SCHEDULE 13D/A |
| 2025-11-07 | Family Trading Inc. | 7.45% | SCHEDULE 13D/A |
| 2025-11-12 | Family Trading Inc. | 5.91% | SCHEDULE 13D/A |
| 2025-11-13 | L1 Capital Global Opportunities Master Fund, Ltd. | 9.99% | SCHEDULE 13G |
| 2025-11-14 | Arena Investors, LP | 8.1% | SCHEDULE 13G |
| 2025-11-17 | Family Trading Inc. | 3.32% | SCHEDULE 13D/A |
| 2026-02-13 | Arena Investors, LP | 0% | SCHEDULE 13G/A |
| 2026-02-17 | L1 Capital Global Opportunities Master Fund, Ltd. | 0% | SCHEDULE 13G/A |
| 2026-06-11 | Trillium Trading, LLC | 5.4% | SCHEDULE 13G |
| 2026-06-12 | Trillium Trading, LLC | 0% | SCHEDULE 13G/A |
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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.