Nauticus Robotics, Inc. has 8 Schedule 13D or 13G filings on record since 2025-08-13. 4 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Material Impact Fund II, L.P. | 25.2% | 11,719,649 | SCHEDULE 13D/A, 2026-04-17 | 2026-04-15 |
| Transocean International Limited | 15.8% | 2,150,716 | SCHEDULE 13D/A, 2025-10-31 | 2025-10-28 |
| Rcb Equities 1, LLC | 11.4% | 782,829 | SCHEDULE 13G, 2026-07-24 | 2026-06-01 |
| SZOP Opportunities I LLC | 9.9% | 759,175 | SCHEDULE 13G, 2026-08-07 | 2026-07-31 |
| Kerber William Xavier Iii | 4.4% | 1,852,696 | SCHEDULE 13D/A, 2025-08-13 | 2025-08-11 |
| Transocean Ltd. | 0.1% | 6,421 | SCHEDULE 13D/A, 2025-12-04 | 2025-11-28 |
Purpose of Transaction (Item 4)
Kerber William Xavier Iii
As of the Issuer's recent 10-Q filing dated August 11, 2025 the Issuer stated total outstanding Common Stock of 42,267,643 shares. Mr. Kerber beneficially owns 1,852,696 shares or 4.4% of of the Issuer's outstanding Common Stock and has ceased to be a beneficial owner of five percent or more as of the date of the Issuer's 10-Q filing dated August 11, 2025.Item 4 of the SCHEDULE 13D/A filed 2025-08-13
Material Impact Fund II, L.P.
The information set forth in Item 4 of the Original Schedule 13D is incorporated herein by reference.Item 4 of the SCHEDULE 13D/A filed 2026-04-17
Transocean International Limited
Item 4 is deleted in its entirety and replaced with the following: The information set forth in Item 3 above is incorporated into this Item 4 by reference. Except as described in this Amendment, the Reporting Persons do not have any present plans or proposals that relate to or would result in any of the actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.Item 4 of the SCHEDULE 13D/A filed 2025-10-31
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-13 | Kerber William Xavier Iii | 4.4% | SCHEDULE 13D/A |
| 2025-10-28 | Material Impact Fund II, L.P. | 21.5% | SCHEDULE 13D/A |
| 2025-10-31 | Transocean International Limited | 15.8% | SCHEDULE 13D/A |
| 2025-12-04 | Transocean Ltd. | 0.1% | SCHEDULE 13D/A |
| 2025-12-16 | Material Impact Fund II, L.P. | 44.6% | SCHEDULE 13D/A |
| 2026-04-17 | Material Impact Fund II, L.P. | 25.2% | SCHEDULE 13D/A |
| 2026-07-24 | Rcb Equities 1, LLC | 11.4% | SCHEDULE 13G |
| 2026-08-07 | SZOP Opportunities I LLC | 9.9% | SCHEDULE 13G |
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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.