Long Wharf Supply Co. Update | Shark Tank Season 13

Helping clean up Earth’s oceans is a worthy goal, especially when ocean plastics are an increasing problem. Mike and Lauren Lamagna, the entrepreneurs behind Long Wharf Supply Co., seek to use ocean waste (including recycled oyster shells) to create eco-friendly sweaters and accessories. After pitching their company, will the sharks clean up on this deal? Find out in our Long Wharf update and pitch recap.

If you’re short on time, here’s a quick overview of what happened to Long Wharf after Shark Tank.

Mike and Lauren pitched their company on Shark Tank Season 13. They sought $375,000 for 15% equity. After their pitch, they walked away without a deal.

In terms of a Long Wharf update, the company expanded beyond sweaters into t-shirts, polos, henleys, swim shorts, and accessories. Further, they recycled more than 60,000 pounds of oyster shells, seeded over 350,000 oysters, and reached $10 million in lifetime sales.

Shark:	Result:
Mark Cuban	No offer
Lori Greiner	No offer
Daymond John	No offer
Kevin O’Leary	No offer
Peter Jones CBE	No offer

Shark Tank Long Wharf Pitch

• Entrepreneurs: Mike and Lauren Lamagna
• Business: Recycled oyster shell sweaters
• Ask: $375,000 for 15% equity
• Result: No deal
• Shark: None

Siblings Mike and Lauren stepped into the Tank with Long Wharf, their company aimed to clean up the oceans, recycle oyster shells that would otherwise go to waste, and turn them into sweaters.

The siblings explained that their Fisherman sweaters were made with a unique blend — 10% lambswool, 50% recycled material, and 40% plant-based viscose and nylon.

Each sweater, they said, helped reseed about 30 oysters. Since oysters naturally filter seawater, the product is tied directly to restoring cleaner waterways. Combined with recycled ocean plastics, it was a product unlike anything the sharks had seen before.

Although Long Wharf had been around since 2016, the company only began selling sweaters in 2020.

The sweaters retailed for $128 to $158, with production costs ranging between $22.50 and $33.50.

However, the sharks quickly pressed on profitability. The entrepreneurs admitted their customer acquisition costs were high. Even so, they had sold $495,000 worth of sweaters in the past 12 months.

When asked about ownership, Mike revealed that he held 100% of the company. Lauren contributed outside her full-time job but did not own equity, which raised a red flag.

Kevin O’Leary was the first to react. He argued that, based on sales and the business model, the company was not worth their asking valuation. To him, it was far too high for something not proven yet, so he went out.

Daymond John shared a personal story about his daughter’s interest in recycling and admitted he wanted to support the mission. Still, he felt the equity ask was too steep and bowed out.

Guest shark Peter Jones questioned whether there was enough demand for sweaters at this price point.

Lori Greiner then asked if there was a way to scale the idea further, noting that the sweaters were expensive and not creating the broader environmental change they could.

Mark Cuban built on this point, asking if they could create a more affordable option to reach a wider market. The siblings, however, didn’t provide a clear answer. As a result, Mark dropped out.

Lori admitted she wanted them to answer Mark’s question directly. She said she might have teamed up with him if they had been willing to explore a lower-cost option. Since they missed that chance, she also stepped away.

That left Peter as the final shark. He liked the concept and the mission but voiced concerns about the high valuation and the lack of equity for Lauren.

When pressed, Mike offered his sister 10% ownership on the spot, which eased some of Peter’s concerns.

Peter then made an offer of $375,000 for 45% equity, arguing that he could take Long Wharf into global markets. It was, as he put it, a safe but sharky deal.

The siblings countered at 20% equity, but Peter refused to budge.

In the end, Mike and Lauren chose not to give up that much equity and walked away without a deal.

So, what happened to Long Wharf after leaving the Tank? Here’s the latest in our Long Wharf update.

Shark Tank Long Wharf Update

Our Long Wharf update found that in the weeks after their episode aired in 2021, the company saw a spike in attention.

Customers were drawn to their SeaWell sweaters, which are made from recycled oyster shells, plastic, and natural fibers. The company quickly turned that spotlight into growth.

In 2022, Long Wharf expanded its product line. It was no longer just sweaters—they added t-shirts, polos, henleys, swim shorts, and even accessories under the SeaWell label.

Additionally, in 2023, the brand announced it had recycled over 60,000 pounds of oyster shells and seeded over 350,000 oysters. That work translates into oysters filtering millions of gallons of seawater each day. Around the same time, Long Wharf reached $10 million in lifetime sales and built partnerships with upscale retailers.

At the time of this writing, Long Wharf had seeded 5 million oysters, filtering over 250 million gallons of seawater daily.

You can check out their latest collection on their official website. You can also follow their journey on Instagram and Facebook.

For now, with a worthy mission and a quality product, Long Wharf Supply Co. is alive and growing, with no signs of slowing down.

We’ll keep watching, and if we get any more news on a Long Wharf update, we will let you know.

Before you go, be sure to check out updates from the other companies featured on Shark Tank Season 13 Episode 2:

• Songlorious Update
• MuteMe Illuminated Mute Button Update
• Proper Good Meals Update

For more on Shark Tank Season 13, be sure to check out our Season 13 products page.