SCHEDULE Filed 2025-08-13 Event 2025-08-11 SEC 0001594543-25-000007 →

KERBER WILLIAM XAVIER III → Nauticus Robotics, Inc. KITTW

Stake: 4.40% Shares: 1,852,696 CUSIP: 63911H207 Class: Common Stock

Item 4 — Purpose of Transaction

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.

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

8 13D/G filings on this issuer

7 other filings besides this one

Filer Track Record

4 filings by this filer

3 other filings in the data moat

Short Interest · settle 2026-03-31

DTC 1.00

12,393 shares short · -35.0% vs prior

Other 13D/G Filings on Nauticus Robotics, Inc.

Filed	Form	Filer	Stake	Shares
2025-10-28	SCHEDULE	Material Impact Fund II, L.P.	21.50%	3,137,615	view →
2025-03-17	SCHEDULE	KERBER WILLIAM XAVIER III	5.10%	1,542,696	view →
2025-02-25	SCHEDULE	Material Impact Fund II, L.P.	18.60%	6,866,659	view →
2025-02-07	SCHEDULE	KERBER WILLIAM XAVIER III	2.00%	611,492	view →
2025-02-06	SCHEDULE	Inkeverse Group Ltd	4.10%	264,108	view →
2024-04-08	SC	SCHLUMBERGER LIMITED/NV	—	—	view →
2022-09-23	SC	TRANSOCEAN INC	—	—	view →

Other Filings by KERBER WILLIAM XAVIER III

Filed	Form	Issuer	Stake	Shares
2025-03-17	SCHEDULE	Nauticus Robotics, Inc. KITTW	5.10%	1,542,696	view →
2025-02-07	SCHEDULE	Nauticus Robotics, Inc. KITTW	2.00%	611,492	view →
2025-01-02	SCHEDULE	Palladyne AI Corp. PDYNW	7.60%	2,292,482	view →

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