Confirmed in a primary source 11 Sept 2026 Courts

The judge running discovery in the biggest AI copyright case told the parties she had owned stock in one of the defendants.

What changed on Edition 013's card is on the docket, not in the news. On Friday Magistrate Judge Ona T.

Wang filed a notice in the consolidated OpenAI copyright litigation in Manhattan disclosing that she held shares in Microsoft Corporation, a co-defendant in about twenty of the cases she manages, that the holding would ordinarily have disqualified her, that she has divested it, and that she will keep presiding so the case need not be reassigned. The caveat is that the rules she cites permit exactly this: divesting and continuing is a recognised path rather than an irregularity, and she states her interest could not have been substantially affected by the outcome.

Until now

The record in the biggest AI copyright case was a fight between the parties, and the judges were the fixed point nobody had to examine.

Now

Put more weight on every procedural detail of this record being available to whoever loses, and on the pretrial rulings of the past seventeen months being examinable rather than settled; put less weight on the judges being the part of this case that stays out of the argument.

Magistrate Judge Ona T. Wang has run the pretrial side of the OpenAI copyright litigation since April 2025. She has decided what the parties must hand over, including the fights over retained ChatGPT logs. On Friday she filed a notice telling them she owned Microsoft stock. Microsoft is a defendant in roughly twenty of the cases on her docket. She says the holding would normally require her to step aside, that she has sold it, that Canon 3C(4) of the judges' code and Advisory Opinion No. 69 permit her to divest and continue, that her interest could not have been substantially affected by the result, and that staying on avoids reassigning the case. She sets no deadline for anyone to respond.

Read one way this is housekeeping done correctly and in public, which is what the rule exists for. Read another way it lands seven days after all three sides asked District Judge Sidney Stein to end the case without a trial, and it hands whoever loses a documented question about the record underneath those motions. Nothing in the notice suggests any ruling was affected and no party has argued that it was. What the filing does is turn a fixed point into a fact on the docket, in a case where two defendants are worth more than four trillion dollars between them and the plaintiffs are newspapers and book authors. Put more weight on every procedural detail of this record being available to whoever loses, and less on the judges being the part of this case that stays out of the argument.

How it got here

Apr 2025
The newspaper and author cases against OpenAI and Microsoft are consolidated before Judge Sidney Stein, with Magistrate Judge Ona T. Wang handling pretrial work.
Sep 1
The Justice Department files a statement of interest urging the court to rule for OpenAI and Microsoft on fair use. Carded in Edition 009.
Sep 4
OpenAI, Microsoft and the publishers all move for summary judgment. Carded in Edition 013. Replies are due November 6.
Sep 11
Judge Wang files a Notice to the Parties disclosing and divesting Microsoft stock, docketed across about twenty member cases, and states she will continue presiding.
Who has to react
The plaintiffs' interim lead counsel, who must decide whether to object and on what record; OpenAI and Microsoft, who would rather this case not acquire a new procedural question a week into summary judgment; Judge Stein, who holds the three motions; the Committee on Codes of Conduct, whose Advisory Opinion No. 69 is now cited in the largest AI copyright case in the country; the textbook authors who filed their own opposition to a stay the same day; and the parties in every other AI copyright docket, where nobody has asked what the judge holds.

The evidence

ObservedUnited States Magistrate Judge Ona T. Wang filed a Notice to the Parties on Friday September 11, 2026 in In re OpenAI, Inc., Copyright Infringement Litigation, 25-md-3143 (SHS)(OTW), Southern District of New York.

The whole observation, as recorded

We read the notice. It discloses that she owns stock in Microsoft Corporation; states that this would ordinarily require her to step aside; cites Canon 3C(4) of the Code of Conduct for United States Judges and Advisory Opinion No. 69 of the Judicial Conference's Committee on Codes of Conduct; states that she has divested the interest; states that her interest could not be substantially affected by the outcome of the proceeding; and states that her continuing will avoid having the matter reassigned to another magistrate judge. No deadline is set for the parties to respond. The notice was docketed simultaneously across roughly twenty member cases, among them Authors Guild, Tremblay, Alter, Ziff Davis, The Intercept, Raw Story, Silverman, Millette, Chabon, US News, Carreyrou, Encyclopaedia Britannica, Gracenote, wikiHow and Sullivan. Microsoft is a named defendant alongside the OpenAI entities in a substantial share of them. Canon 3C(4) permits a judge who discovers a disqualifying financial interest after substantial judicial time has been devoted to a matter to divest and continue rather than recuse. Judge Wang has handled pretrial work in this multidistrict litigation since its consolidation in April 2025, including the disputes over retained ChatGPT conversation logs. District Judge Sidney Stein holds the three summary judgment motions filed on September 4 by OpenAI, Microsoft and the publishers, carded in Edition 013, with replies due November 6. On the same day, textbook authors in member case 1:26-cv-6966 filed a twenty-page memorandum opposing a stay of their case, arguing that interim lead counsel has not developed textbook-specific arguments, and plaintiffs in Nazemian v. NVIDIA filed a Rule 72(a) motion in the Northern District of California challenging a July 1, 2024 discovery cutoff and seeking to compel NVIDIA to identify every dataset containing books it downloaded or torrented. As of this morning we can find no press coverage of Judge Wang's notice.

Established

Judge Wang filed a Notice to the Parties on September 11, 2026 disclosing that she owned Microsoft stock while presiding over pretrial matters in MDL 25-md-3143.
She states that she has divested the interest and cites Canon 3C(4) and Advisory Opinion No. 69 as permitting her to continue.
She states her interest could not be substantially affected by the outcome and that continuing avoids reassignment.
The notice was entered across roughly twenty member cases in which Microsoft is a co-defendant.

Not established

That any ruling was affected. The notice asserts the opposite and no party has alleged otherwise.
That the disclosure was late. The notice does not say when the holding was acquired or when she learned it was disqualifying.
That anyone will object. No deadline is set and no response had been filed as of this morning.
That the summary judgment motions are touched. Those sit with District Judge Stein, not with Judge Wang.

Why it weighs this much

Signal strength

CostLow

CommitmentHigh

ReversibilityHard

PersistenceStructural

Filing the notice cost nothing in money and something in exposure, so cost is low and holds the bars down. Commitment is high because it is a signed judicial filing entered on about twenty dockets that cannot be withdrawn or softened, and the divestiture is already done. Reversibility is hard for the same reason. Persistence is the one bar we set at the top, because a disclosure entered on a multidistrict docket is part of the permanent record and stays available to whoever loses for as long as the case runs, including on appeal. The bars do not run higher because the action is procedural, the rule expressly allows it, and nothing yet suggests any ruling was affected.

What to watch

strengthens Any party files an objection, a motion to disqualify, or a motion to vacate a prior order of Judge Wang in MDL 25-md-3143, by December 31, 2026.
weakens Judge Stein rules on one or more of the three summary judgment motions with no party having raised Judge Wang's disclosure in any filing, by March 31, 2027.

The words

Magistrate judge: A federal judge who handles pretrial work such as discovery and disputes over documents. The district judge decides the case itself.
Multidistrict litigation: Many similar lawsuits pooled before one judge for pretrial work, then sent back or settled. This one holds about twenty cases against OpenAI and Microsoft.
Recusal: A judge stepping aside because of a conflict. Owning stock in a party is the clearest kind there is.
Divestiture: Selling the conflicting holding. Under the judges' own code, doing so can let a judge keep a case that has already consumed substantial judicial time.

Your call

Which explanation do you believe?

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