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S.D.N.Y.Procedural orderFiled Nov. 26, 2025

Sutherland v. Securities and Exchange Commission

Full caption

Colin Paul Sutherland v. Securities and Exchange Commission (“SEC”); Citadel Securities LLC; Virtu Financial Inc.; Jane Street Group LLC; Susquehanna International Group LLP; Invesco Ltd.; John Does 1-100 Market Makers

Judge
Laura Swain
Docket
1:25-cv-09422
Court
U.S. District Court · Southern District of New York
Pages
2
Civil ProcedurePro Se
In one sentence

In Sutherland v. SEC, Judge Swain dismissed the duplicate complaint without prejudice and denied permission to appeal without paying filing fees.

Who this affects

Colin Paul Sutherland’s later-filed case was dismissed without prejudice, while his identical complaint remained pending under docket number 25-CV-9233. The named defendants and John Does 1-100 Market Makers were affected by the dismissal of this duplicate action.

What happened

Colin Paul Sutherland sued the Securities and Exchange Commission and several named and unidentified market makers, alleging violations of the Securities and Exchange Act of 1934. He represented himself.

The court found that Sutherland had already submitted the identical complaint in a pending case, No. 25-CV-9233. Because the two lawsuits raised the same claims, the court dismissed this later-filed complaint without prejudice as duplicative.

Judge Laura Taylor Swain directed the Clerk of Court to enter judgment dismissing the case. She also denied Sutherland permission to appeal without paying filing fees, finding that an appeal would not be taken in good faith.

The detailed version

For law students, journalists, and other readers who want the full reasoning

Case
Sutherland v. Securities and Exchange Commission · No. 1:25-cv-09422
Judge
Laura Swain
Date
Nov. 26, 2025

Background

Colin Paul Sutherland, appearing without a lawyer, brought this action under the court’s federal-question jurisdiction. He alleged that the defendants violated the Securities and Exchange Act of 1934. The opinion identifies the defendants as the Securities and Exchange Commission, Citadel Securities LLC, Virtu Financial Inc., Jane Street Group LLC, Susquehanna International Group LLP, Invesco Ltd., and John Does 1-100 Market Makers.

Reason for dismissal

The court stated that Sutherland had previously submitted the identical complaint in a pending case, No. 25-CV-9233. It explained that a plaintiff generally may not maintain multiple actions involving the same subject matter at the same time in the same court against the same defendant. Because this complaint raised the same claims as the pending case, the court determined that litigating the duplicate lawsuit would serve no useful purpose.

Ruling

The court dismissed the complaint without prejudice as duplicative of No. 25-CV-9233. The dismissal was therefore based on the duplicate nature of the lawsuit, not on a decision about whether the securities allegations were legally or factually correct. The court directed the Clerk of Court to enter judgment dismissing the case.

The court also certified under 28 U.S.C. § 1915(a)(3) that any appeal from the order would not be taken in good faith and denied permission to appeal without paying filing fees. This denial applied for purposes of an appeal.

The authoritative version

Read the full 2-page opinion on CourtListener, the free public archive maintained by the Free Law Project.

Open opinion PDF →
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