Delisting risk
Nauticus Robotics
Subsea robotics combining Aquanaut, ROV services, autonomy software, and electric manipulators.
$0.8100
After-hours close+0.02 (+2.08%)
At close$0.7935(−0.81%)
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Breakdown13F · Form 4
Institutions 24.83%177.0K sharesInsiders 13.68%97.6K sharesOther 61.49%438.4K shares
Shares outstanding 713.0K · Float —
Float — provider float is below the insider stake.
The provider's float is smaller than the insider stake it should exclude, so it is not shown.
Institutions13F, as of Mar 31, 2026
18 holders · 177.0K shares · 8 new positions · 13 increased · 1 reduced · 14 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Geode Capital Management, LLC | 42.9K | 6.02% | +16.1K | May 15, 2026 |
| UBS Group AG | 42.9K | 6.01% | +39.8K | May 5, 2026 |
| Vanguard Capital Management LLC | 31.9K | 4.48% | +31.9Knew | May 15, 2026 |
| Vanguard Fiduciary Trust Co | 15.5K | 2.17% | +15.5Knew | May 8, 2026 |
| Peak6 LLC | 12.2K | 1.72% | +12.2Knew | May 14, 2026 |
| BlackRock, Inc. | 9.2K | 1.29% | +7.4K | May 13, 2026 |
| 6.9K | 0.96% | +6.9Knew | May 13, 2026 | |
| Northern Trust Corp | 4.1K | 0.57% | 0 | May 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Adam Sharkawyincl. Material Impact Partners II, LLC, Material Impact Fund II, L.P. +1 more | 25.20% | 13D | Apr 17, 2026 ↗ | |
| RCB Equities 1, LLC | 11.40% | 782.8K | 13G | Jul 24, 2026 ↗ |
| SZOP Opportunities I LLC | 9.90% | 13G | Aug 7, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Dror Brian Isaac | 10 percent owner | 782.8K | 109.80% | Jul 27, 2026 |
| RCB Equities 1, LLC | 10 percent owner | 782.8K | 109.80% | Jul 14, 2026 |
| Robert Douglas Christ | officer: President SeaTrepid | 83.9K | 11.77% | Mar 20, 2026 |
| William Flores | director | 4.3K | 0.61% | Jul 31, 2026 |
| Jim Bellingham | director | 2.5K | 0.36% | Jul 31, 2026 |
| Adam Sharkawy | director | 2.5K | 0.36% | Jul 31, 2026 |
| Elliot Spiro | director | 2.5K | 0.35% | Jul 31, 2026 |
| John W. Jr Gibson | director, officer: CEO | 1.7K | 0.23% | Feb 24, 2026 |
| TRANSOCEAN INTERNATIONAL Ltd | other: Former 10% Owner | 803 | 0.11% | Dec 4, 2025 |
| Transocean Ltd. | other: Former 10% Owner | 803 | 0.11% | Dec 4, 2025 |
7 ten-percent owners hold 1.57M shares by Form 4 — the 13D/G table above shows those stakes, the figure above counts officers and directors only · 14 people have not refiled in the last 18 months (6.6K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jun 1, 2026 | Brian Isaac Dror10 percent owner | Sale | 32,539 | $2.02 | 782,829 |
| Jun 1, 2026 | RCB Equities 1, LLC10 percent owner | Sale | 32,539 | $2.02 | 782,829 |
| Feb 24, 2026 | John W. Jr Gibsondirector, officer: CEO | Sale | 715 | $0.8200 | 13,351 |
| Dec 3, 2025 | Transocean Ltd.other: Former 10% Owner | Sale | 2,021,920 | $1.02 | 6,421 |
| Dec 2, 2025 | Transocean Ltd.other: Former 10% Owner | Sale | 32,839 | $0.7400 | 2,028,341 |
| Dec 1, 2025 | Transocean Ltd.other: Former 10% Owner | Sale | 61,351 | $0.8100 | 2,061,180 |
| Nov 28, 2025 | Transocean Ltd.other: Former 10% Owner | Sale | 28,185 | $0.9000 | 2,122,531 |
| Dec 3, 2025 | TRANSOCEAN INTERNATIONAL Ltdother: Former 10% Owner | Sale | 2,021,920 | $1.02 | 6,421 |
| Dec 2, 2025 | TRANSOCEAN INTERNATIONAL Ltdother: Former 10% Owner | Sale | 32,839 | $0.7400 | 2,028,341 |
| Dec 1, 2025 | TRANSOCEAN INTERNATIONAL Ltdother: Former 10% Owner | Sale | 61,351 | $0.8100 | 2,061,180 |
CongressHouse and Senate disclosures
Not reported.