First Circuit Affirms SEC $16M Asset Freeze in Wintercap Case, Broadens Relief-Defendant Power in Crypto Enforcement

SEC Snags Gastauer Assets in Wintercap Crypto Case

The First Circuit just handed the SEC a major win by affirming a $16 million asset freeze against Raimund Gastauer, a relief defendant tied to an alleged crypto fraud. The ruling means the agency can keep its hands on millions in disputed funds while the underlying enforcement action grinds forward, tightening the noose around offshore crypto structures that regulators believe were used to siphon investor money.

The case traces back to 2021 when the SEC accused Roger Knox and his Wintercap entities of running a Ponzi-like scheme that raised over $100 million from investors by promising safe, high-yield returns in digital assets. Raimund Gastauer was never accused of wrongdoing himself, yet the SEC claimed he received roughly $16 million in investor funds through a web of offshore companies he controlled. A district court froze those assets at the agency’s request, and Gastauer appealed, arguing the freeze violated due process and lacked statutory authority because he was only a “relief defendant.”

Judges ultimately sided with the SEC. The First Circuit held that district courts possess broad equitable power to freeze assets in the hands of relief defendants when there is reason to believe the money belongs to defrauded investors, even without proving the recipient committed fraud. The panel rejected Gastauer’s constitutional arguments and found the freeze order sufficiently supported by evidence linking the transferred funds to the alleged scheme. The decision leaves the freeze in place while the main case against Knox and the Wintercap entities proceeds.

In plain terms, the court is saying that if investor money ends up in your account—even if you claim you’re an innocent third party—the SEC can still lock it down until ownership is sorted out. This lowers the bar for regulators to reach assets parked in foreign entities and nominee structures, making it riskier to act as a passive recipient of crypto-related transfers when enforcement actions are underway.

The ruling strengthens the SEC’s leverage in crypto cases by confirming it can pursue relief defendants across borders and keep funds immobilized without first proving scienter against every holder. That widens the agency’s practical authority, pressures offshore platforms and DeFi-adjacent wallets that might receive tainted flows, and signals to exchanges and traders that commingled or downstream crypto assets can become enforcement targets long after the original transaction clears. Token classification fights may grab headlines, but asset-freeze power remains the sharper tool regulators now know they can wield.

For crypto market participants, the message is blunt: distance from questionable capital flows is no longer just good hygiene—it’s survival.