First Circuit Upholds SEC Asset Freeze in Wintercap Crypto Case

SEC Scores Early Win Against Gastauer Network

The First Circuit just upheld an asset freeze against Raimund Gastauer in the SEC’s sprawling Wintercap crypto-fraud case, signaling that relief defendants can still lose their wallets even if they claim no direct wrongdoing. The ruling matters because it keeps millions in contested tokens and cash locked down while the agency builds its case against the larger alleged scheme.

The SEC sued several Wintercap-linked entities and individuals for allegedly running an unregistered securities offering tied to crypto trading accounts. Rather than targeting Raimund Gastauer as a primary defendant, the agency named him a “relief defendant,” meaning it sought only to claw back assets it says were received without legitimate value exchanged. Gastauer fought the freeze, arguing he was a passive investor entitled to keep what he held, but a lower court sided with the SEC and kept the restraints in place. On appeal, the First Circuit reviewed whether a relief defendant can be forced to disgorge assets when the agency has yet to prove the underlying fraud.

Judges found that the district court applied the right legal test and that Gastauer failed to show a clear likelihood of success on the merits. They noted evidence suggesting the funds and tokens traced back to the alleged unregistered offering, giving the SEC a plausible claim that he holds proceeds subject to disgorgement. The panel stressed that relief-defendant status is not a safe harbor; once the agency shows a likelihood that the assets are tainted, the burden shifts to the holder to prove otherwise. With that standard met, the asset freeze survives and the litigation moves forward.

The decision tightens the screws on anyone sitting on crypto received from entities under SEC investigation. It does not decide whether Wintercap’s tokens are securities or whether fraud occurred, but it confirms that the agency can lock up downstream holdings while it builds its case.

For markets, the ruling reinforces the SEC’s leverage in enforcement actions involving layered wallet structures and offshore entities. It raises the cost of holding tokens that might later be deemed proceeds, nudging traders and DeFi participants to demand stronger provenance checks. Exchanges and protocols that custody or route funds for such counterparties now face higher compliance risk, while stablecoin and token issuers could see indirect pressure if their distribution chains intersect with frozen wallets.

The message is clear: in crypto enforcement, possession is no longer nine-tenths of the law.