Who Owns the Sea Nash Yacht Now? Ownership and History

Eric DawsonByEric Dawson Boats & Cruises

For readers asking who owns sea nash yacht now, SuperYacht Times places the yacht’s owner information in its subscriber-only SYT iQ service. SeaNash is the Westport motor yacht delivered in January 2009, formerly named Lady Kathryn IV and identified by IMO number 9548809.

Built in Port Angeles, Washington, the 49.93-meter yacht features exterior and interior design by Donald Starkey and accommodates up to 12 guests. As of September 2026, SuperYacht Times and YachtBuyer list SeaNash as not for sale, a marketplace status rather than proof that ownership has stayed the same.

Who Owns Sea Nash Yacht Now?

Access to that information and evidence of an ownership change are separate matters, just as a yacht’s sale listing and its ownership history answer different questions. For readers investigating the Sea Nash yacht owner, the starting point is the vessel-specific entry: SeaNash is the Westport yacht delivered in 2009, identified in VesselFinder by IMO number 9548809.

Names deserve particular care here because directory entries use several versions of the yacht’s name. VesselFinder renders it as SEANASH, while SuperYacht Times and Y.CO use SeaNash, and other yacht directories use Seanash. Those spellings refer to the same vessel rather than separate yachts. Matching the IMO number provides a more useful way to distinguish this yacht from people, businesses, or pages using the words “Sea Nash.” That distinction matters when assessing a claim about ownership.

A University of the Philippines-hosted page describes “Sea Nash” as the founder of “Sea Nash’s Yacht.” Founding a named enterprise is a different claim from currently owning this particular Westport vessel. Similarly, broad descriptions of a supposed yacht empire concern a different question from the ownership of IMO 9548809. Treating the founder wording as an answer would conflate the page’s description with a vessel ownership claim. Readers should keep those categories separate rather than infer ownership from a matching name.

Marketplace status also needs to stay separate from ownership history. Neither status establishes that ownership has remained unchanged. Private transactions and advertised availability are distinct issues, so a sale-status label should be read as a marketplace description rather than a record of who holds the yacht.

Registration offers another distinction: VesselFinder records SeaNash under the Cayman Islands flag. Flag state identifies the vessel’s registration jurisdiction, not a named beneficial owner. Meanwhile, Yacht Charter Fleet records Lady Kathryn IV as her earlier name. Together, the former name, builder, delivery year, and IMO number establish which yacht an ownership claim must concern.

Which Sea Nash Yacht Is Being Discussed?

Built in the United States, the vessel measures 49.93 meters according to SuperYacht Times and Boat International, making it the roughly 50-meter yacht relevant to the Sea Nash yacht owner question.

VesselFinder styles the name as “SEANASH,” while SuperYacht Times and Y.CO use “SeaNash.” Yacht Charter Fleet, YachtBuyer, and Boat International render it as “Seanash.” These spelling and capitalization variations refer to the same Westport vessel.

Registration provides another identifying detail: VesselFinder records SEANASH under the Cayman Islands flag and classifies its AIS type as “Pleasure craft.” Alongside the IMO number, its record lists MMSI 319226200 and callsign ZGQD3. Together, these details establish which vessel a listing describes and keep the ownership question tied to the correct yacht.

Detail Vessel Record How to Read It
Ownership visibility SuperYacht Times places owner data in SYT iQ. Ownership information is a separate category from vessel particulars.
Identifiers IMO 9548809; MMSI 319226200; callsign ZGQD3 Use these to match records to SEANASH.
Earlier name Lady Kathryn IV Connects the yacht to its earlier identity.
Build history Westport, Port Angeles, Washington; delivered January 2009 Establishes construction and delivery history.
Marketplace status Not listed for sale; not believed available for private charter as of September 2026 Describes marketplace availability, not a transfer of ownership.
Location September 2026 reporting places the yacht in San Diego, at Fifth Avenue Landing. Describes reported whereabouts, rather than ownership.

Historical records add a useful cross-check because Yacht Charter Fleet identifies Seanash as “ex. Lady Kathryn IV.” Westport built the yacht at its Port Angeles, Washington shipyard, with delivery in January 2009. Searching under the earlier name can therefore connect references to the same vessel before its renaming. Construction history and former names belong to the yacht’s identity, so they should be read separately from claims about its present owner.

Marketplace and location entries answer different questions about SeaNash. SuperYacht Times and YachtBuyer describe its sale status, while Yacht Charter Fleet addresses private charter availability. VesselFinder reports a San Diego arrival on September 19 at 04:18 UTC, and Boat International places Seanash at Fifth Avenue Landing.

Those entries help distinguish a vessel description, an availability listing, and a reported position. For assessing an ownership claim, the practical starting point remains the same: match the claim to the Westport yacht carrying IMO 9548809 before treating similarly named material as relevant.

Sea Nash Yacht History from Lady Kathryn IV

SeaNash’s history runs from construction beginning in mid-2007 through a December 2008 launch and January 2009 delivery, with Lady Kathryn IV documented as an earlier name. Yacht Charter Fleet and YachtBuyer also record a refresh or refit in 2022. Together, those milestones provide a construction and maintenance timeline for the Westport yacht, while the earlier name offers a connection between her present identity and the name recorded in Yacht Charter Fleet’s historical listing.

Westport built the yacht. According to YachtBuyer, construction started in mid-2007, followed by launch in December 2008 and sea trials before delivery in January 2009. That sequence distinguishes the start of building from launch and the subsequent handover to the owner. Delivery in January 2009 is also recorded by Yacht Charter Fleet, giving the yacht’s commonly listed 2009 build year a more precise point on the calendar.

Sea Nash yacht history includes Lady Kathryn IV, which appears in Yacht Charter Fleet’s entry as “ex. Lady Kathryn IV,” identifying the vessel’s former name. For readers following that history, the earlier identity belongs alongside the Westport construction chronology rather than replacing it.

Both names refer to the same yacht: the vessel built at Port Angeles and delivered in January 2009. Keeping the former name attached to those milestones makes the historical account specific to this Westport rather than to unrelated uses of “Sea Nash.”

Donald Starkey’s contribution spans both the exterior and interior, with SuperYacht Times crediting Donald Starkey Designs for each. Yacht Charter Fleet, YachtBuyer, and Boat International likewise attribute the yacht’s styling and interior to Starkey.

Naval architecture is credited to William Garden by SuperYacht Times, YachtBuyer, and Y.CO, while Boat International credits Westport alongside Garden. These credits distinguish the design roles from Westport’s work as builder. Structurally, SuperYacht Times and Boat International describe a GRP hull and GRP superstructure.

A later milestone appears in the listings from Yacht Charter Fleet and YachtBuyer, which identify 2022 as the year of the yacht’s most recent refit or refresh. Their terminology varies, so “2022 refresh” provides a straightforward way to describe that reported update. Read chronologically, the record moves from the Westport construction program to launch, trials, delivery, and that later refresh.

Sea Nash Yacht Specifications and Published Differences

Published Sea Nash yacht specifications describe a roughly 50-meter motor yacht with a GRP hull and superstructure, accommodation for up to 12 guests, and capacity for 11 crew. Directory entries differ on precise dimensions, cabin counts, and performance figures, so those details are best read with their individual attributions rather than combined into a single definitive specification.

SuperYacht Times and Boat International both list an overall length of 49.93 meters, while YachtBuyer gives 49.99 meters and Yacht Charter Fleet reports 50.01 meters. VesselFinder rounds the length to 50 meters in its AIS particulars. These small differences represent competing published measurements rather than a documented alteration to the yacht’s length. For beam and draft, SuperYacht Times lists 9.4 meters and 2.29 meters respectively, compared with VesselFinder’s 10-meter beam and 2.5-meter current draft.

YachtBuyer further describes the yacht as having a semi-displacement hull. Gross tonnage varies slightly, with SuperYacht Times and Y.CO reporting 498 GT, versus 499 GT from YachtBuyer and Boat International. That one-GT discrepancy is a difference between directory entries, not evidence of a confirmed change to the yacht.

Accommodation is consistently described as suitable for up to 12 guests, but the published room layouts differ. Yacht Charter Fleet specifies six suites, including a VIP cabin, whereas Boat International lists seven staterooms. Neither count should replace the other as an undisputed layout; the shared guest-capacity figure is the clearer summary. Crew capacity is listed as 11 by SuperYacht Times, Yacht Charter Fleet, and Boat International, with SuperYacht Times explicitly including the captain.

Propulsion comes from two MTU engines, which YachtBuyer identifies as diesel 16V 4000 M90 units producing 3,648 horsepower each at 2,100 rpm. Top speed is listed as 24 knots by SuperYacht Times and Boat International, compared with YachtBuyer’s 25 knots. Cruising figures also vary: Boat International and Y.CO give 20 knots and a range of 3,700 nautical miles at 12 knots, while YachtBuyer lists 17 knots and 4,261 nautical miles at 12 knots.

Fuel capacity follows the same pattern of differing entries: SuperYacht Times reports 75,708 liters, compared with YachtBuyer’s 68,130 liters. Amenities listed by YachtBuyer include a deck Jacuzzi, sunpads, a gym, an elevator, air conditioning, and underwater lights. Stabilizers intended to improve comfort at anchor also appear in that listing, rounding out the yacht’s published onboard features alongside its accommodation and machinery specifications.

Sea Nash Yacht Price and Sale Status

Yacht Charter Fleet separately says the yacht is not believed to be available for private charter, making sale and charter availability distinct parts of its marketplace status. Those statements describe how the yacht is presented to prospective buyers and charter guests, rather than establishing a purchase price or identifying its owner.

Sale status needs to be read narrowly: “not listed for sale” is a directory’s marketplace description. Private transactions can occur outside public listings, so that wording should not be treated as proof that ownership has remained unchanged. Equally, an asking price and a completed purchase price represent different things. For a Sea Nash yacht price comparison, figures must belong to this particular Westport vessel and be identified as the type of value they actually represent.

Charter availability requires the same care. Yacht Charter Fleet qualifies its assessment with “not believed to be available” and also cautions that the vessel is not necessarily available for charter or sale. Readers should preserve that qualification instead of turning it into a categorical statement about how SeaNash is used. Neither a charter listing assessment nor a sale listing assessment establishes who holds title to the yacht, and neither should substitute for ownership evidence.

Separate online claims about a “Sea Nash” yacht empire concern a purported portfolio that includes Sea Spirit, Nash Horizon, and Sea Sovereign. Networth Hub attaches its headline valuations to that alleged portfolio and its supposed owner. Its Sea Sovereign discussion concerns a differently named vessel described as a Lurssen, rather than the Westport SeaNash. Transferring those valuations into a discussion of this yacht would confuse separate subjects and turn a portfolio claim into a vessel price.

Keep the distinction centered on the vessel. Its identifier is more useful than its name when assessing a price or ownership claim. Those marketplace entries support a limited, practical reading, including Yacht Charter Fleet’s qualified wording on private charter availability.

Where Is Sea Nash Yacht?

SeaNash was reported in San Diego in September 2026, with Boat International placing the yacht at Fifth Avenue Landing. VesselFinder recorded her arrival in San Diego on September 19 at 04:18 UTC. Those dated reports provide a location snapshot for that period, rather than a guarantee that the yacht remains at the same berth whenever someone checks where Sea Nash yacht is.

According to VesselFinder’s September 2026 report, SEANASH was on the North America West Coast with a navigation status of “Moored.” Its displayed position had been received three minutes before the observation. That freshness describes the report at the time it was viewed, not its age today. Reading the timestamp alongside the status keeps a recent-looking position from being mistaken for a continuously verified location.

Boat International’s listing placed Seanash at Fifth Avenue Landing, described as a superyacht marina, and said she had been there for two days. Together, the marina listing and San Diego arrival record give a more specific picture than the broader West Coast label. Each remains a dated observation, so the useful distinction is between where the yacht was reported and where she might be later.

Earlier in the same reporting period, VesselFinder recorded a call at Port Angeles, Washington, followed by departure on September 15 at 14:55 UTC. September’s port-call entries therefore put Port Angeles before the recorded San Diego arrival. But a port call is a movement record, not an explanation of the visit or evidence of work performed there.

For the ownership question, these location entries should be read as operational information. AIS establishes where the vessel’s transponder reported her position; a marina listing similarly places the yacht at a reported destination. Neither type of entry is an ownership record. Keeping that distinction clear allows the September itinerary to describe the yacht’s reported movements without turning a berth, port call, or mooring status into an identification of her owner.

How to Assess a Sea Nash Yacht Owner Claim

Assess an ownership claim for the yacht by matching it to IMO 9548809, checking its date, and separating ownership evidence from references to founders, operators, or similarly named yachts. Treat the vessel’s identity and the claimant’s relationship to it as separate questions.

  1. Match the identifier. VesselFinder records SEANASH with MMSI 319226200 and callsign ZGQD3.
  2. Check the vessel and date. Compare the claim with that vessel. Read any ownership assertion against its stated date rather than treating a historical reference as a current one.
  3. Separate the roles. Ask whether the wording identifies an owner, founder, manager, operator, or builder. Keep those descriptions distinct when deciding what the claim actually establishes.
  4. Examine the documentation. Look for a registry extract, certificate of registry, bill of sale, or corporate record tied to IMO 9548809. Check whether the document supports the particular ownership role and period being claimed.

Hosting on a university website does not turn that statement into a vessel ownership record, and general discussion of superyacht prices does not establish title.

Likewise, the “Hidden Fortune” empire story concerns a purported yacht portfolio that includes Sea Spirit, Nash Horizon, and Sea Sovereign. Those names should not be substituted for SeaNash merely because the story uses “Sea Nash.” Claims about that portfolio’s wealth, acquisitions, or offshore structures are not evidence of ownership of the yacht identified by IMO 9548809.

Finally, distinguish directory access from ownership documentation. Sale and charter listings answer different questions about marketplace availability. Neither a listing status nor the yacht’s Cayman Islands flag should be used to assign an owner, since the flag identifies its registration jurisdiction rather than a person.

In 2019, Columbus, I took a used 2014 Honda Fit with 61,000 miles and let the dealer add a $1,395 service contract; six years on, I have never made a claim, so the brochure did me more favor than the contract ever has. For a Sea Nash Yacht Owner Claim, that is why I distinguish a sale or charter listing from ownership documentation: an attractive surface is not proof.

Frequently Asked Questions

Is Sea Nash Confirmed as the Yacht’s Current Owner?

SuperYacht Times places SeaNash’s owner information in its subscriber-only SYT iQ service. A University of the Philippines-hosted page describes “Sea Nash” as the founder of “Sea Nash’s Yacht,” but that statement concerns a founder rather than the current ownership of the Westport vessel.

Was SeaNash Previously Named Lady Kathryn IV?

Yacht Charter Fleet identifies SeaNash as “ex. Lady Kathryn IV,” documenting her earlier name. Westport built the yacht at its Port Angeles, Washington shipyard and delivered her in January 2009.

What Is the Sea Nash Yacht Price?

SeaNash is listed as not currently for sale by SuperYacht Times and YachtBuyer as of September 2026. General superyacht price ranges describe the broader market, not a valuation or asking price for this particular yacht.

Is SeaNash Available for Sale or Private Charter?

Sale availability is addressed above. Yacht Charter Fleet says she is not believed to be available for private charter. These marketplace descriptions concern availability rather than ownership.

Where Was SeaNash Reported in September 2026?

VesselFinder reported that SeaNash arrived in San Diego on September 19 at 04:18 UTC and listed her navigation status as “Moored.” Boat International placed the yacht at Fifth Avenue Landing, a superyacht marina. Those reports describe the vessel’s location rather than identifying her owner.

SeaNash’s documented history centers on a Westport yacht delivered in 2009, previously named Lady Kathryn IV, and identified by IMO 9548809. That identifier is the clearest way to distinguish the vessel from unrelated uses of “Sea Nash.” Her Cayman Islands flag, San Diego location reports, and sale or charter listings each describe a different aspect of the yacht. Ownership is addressed separately.

References

Sources read in September 2026.

Eric Dawson

I'm Eric Dawson, and I write The Money Watch from north Columbus, Ohio. Most of what I cover comes from my own life: renting, a 2014 Honda Fit, parking, computers, food and the bills behind all of it. I spent four years in an apartment-property office and eleven on a distributor's operations desk, reading leases and invoices. Where you need real information, I research the maker's or agency's own page and independent sources and report what they publish. I don't give tax, investment, legal or medical advice.