Anthony Defeo v. IonQ, Inc.

134 F.4th 153
CourtCourt of Appeals for the Fourth Circuit
DecidedApril 8, 2025
Docket24-1709
StatusPublished
Cited by1 cases

This text of 134 F.4th 153 (Anthony Defeo v. IonQ, Inc.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Fourth Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Anthony Defeo v. IonQ, Inc., 134 F.4th 153 (4th Cir. 2025).

Opinion

USCA4 Appeal: 24-1709 Doc: 40 Filed: 04/08/2025 Pg: 1 of 21

PUBLISHED

UNITED STATES COURT OF APPEALS FOR THE FOURTH CIRCUIT

No. 24-1709

ANTHONY DEFEO; CHEON JONG KU; NG YU,

Plaintiffs – Appellants,

and

MICHAEL LEACOCK, individually and on behalf of all others similarly situated,

Plaintiff,

v.

IONQ, INC.; PETER CHAPMAN; THOMAS KRAMER; NICCOLO DE MASI; HARRY YOU; DARLA ANDERSON; FRANCESCA LUTHI; CHARLES WERT,

Defendants – Appellees.

Appeal from the United States District Court for the District of Maryland, at Greenbelt. Deborah Lynn Boardman, District Judge. (8:22-cv-01306-DLB)

Argued: January 31, 2025 Decided: April 8, 2025

Before NIEMEYER, AGEE and THACKER, Circuit Judges.

Affirmed by published opinion. Judge Agee wrote the opinion in which Judge Niemeyer and Judge Thacker joined.

ARGUED: Brian Peter Calandra, POMERANTZ LLP, New York, New York, for Appellants. Ryan Edward Blair, COOLEY LLP, San Diego, California; Michael S. Hines, USCA4 Appeal: 24-1709 Doc: 40 Filed: 04/08/2025 Pg: 2 of 21

SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP, Boston, Massachusetts, for Appellees. ON BRIEF: Jordan A. Cafritz, Washington, D.C., Adam M. Apton, LEVI & KORSINSKY, LLP, New York, New York; Jeremy A. Lieberman, POMERANTZ LLP, New York, New York, for Appellants. Junbo Hao, THE HAO LAW FIRM, Beijing, China, for Appellant Ng Yu. David E. Mills, Caitlin B. Munley, Washington, D.C., Kathleen R. Hartnett, San Francisco, California, Linh K. Nguyen, Allison W. O’Neill, Vivienne A. Pismarov, San Diego, California, Elizabeth M. Wright, COOLEY LLP, Boston, Massachusetts, for Appellees IonQ, Inc.; Peter Chapman; and Thomas Kramer. James R. Carroll, Rene H. DuBois, SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP, Boston, Massachusetts, for Appellees Niccolo de Masi, Harry You, Darla Anderson, Francesca Luthi, and Charles E. Wert.

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AGEE, Circuit Judge:

IonQ, Inc., a public company that develops quantum computers, saw its share price

close at $7.86 on May 2, 2022. Nine days later, its stock closed at $4.34. A group of

aggrieved investors (the “Shareholders”) claim the drop in stock price and their attendant

financial loss was caused by the Scorpion Report (the “Report”), published on May 3. The

Report alleged that IonQ and its component companies had been perpetrating a widespread

fraud on the market as to the value of the company. When that alleged fraud was revealed,

the market reacted, leading to the stock price decline. The Shareholders then filed suit

against IonQ claiming various iterations of securities fraud.

This appeal asks whether the Shareholders adequately pleaded loss causation—a

necessary element to state each of their security fraud claims—by relying on the Report

and IonQ’s response to it. Like the district court, we think the answer is no, so we affirm

its judgment.

I.

We take the facts from the Shareholders’ proposed second amended complaint and

accept the well-pleaded ones as true. Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009). We also

necessarily borrow from certain unchallenged papers in the record provided by IonQ that

“[Share]holders failed to attach . . . to their complaint” but that are “integral to and

explicitly relied on in the complaint.” Phillips v. LCI Int’l, Inc., 190 F.3d 609, 618 (4th Cir.

1999).

That said, the background explanation for this case proceeds in three parts.

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A.

Two professors founded IonQ in 2015 as a startup dedicated to developing quantum

computers. In October 2020, it unveiled a new product: a 32-qubit quantum computing

system. 1 IonQ did not make this new system commercially available at the time but touted

its revolutionary capabilities to the public. That announcement set a niche corner of

technology media abuzz. One outlet, for example, recognized the potential that IonQ’s 32-

qubit system could lead to the “most powerful quantum computer yet,” while also noting

that “the quantum computing community” reacted to IonQ’s news with “a bit of

skepticism.” J.A. 996.

dMY Technology Group, Inc. III, a technology-focused special purpose acquisition

company formed in 2020, evidently took notice of IonQ’s announcement. The month after

IonQ revealed its 32-qubit system, dMY approached the company to discuss a potential

merger. After dMY conducted extensive due diligence into IonQ, the companies entered a

merger agreement on March 7, 2021. Because dMY was a public company, its shareholders

were required to vote to approve the merger before it closed. On September 28, 2021—

after a campaign encouraging investors to vote to approve the corporate marriage—the

1 As described by the Shareholders, “[q]uantum computers are fundamentally different from ‘classical’ computers.” J.A. 987. They “use the laws of quantum mechanics . . . to represent units of information, and those units of information interact with specially designed hardware and software to solve complex problems.” Id. The use of quantum mechanics “make quantum computers much more powerful than any, even theoretical, future classical supercomputer.” J.A. 974. IonQ’s 32-qubit system would purportedly be the most powerful computing system in the world.

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merger was approved by overwhelming majority. The newly merged company took the

name of IonQ and began trading publicly on October 1, 2021.

B.

On the morning of May 3, 2022, Scorpion Capital LLC published the Report online

as a long slide deck reporting its “finding” that IonQ was “[a] scam built on phony

statements about nearly all key aspects of the technology and business.” J.A. 506. The

Report, which its publisher touted as “the most in-depth due diligence to date on IonQ,”

was based on certain public information and selective interviews of unnamed former IonQ

employees, customers, and quantum computing experts. J.A. 508; see J.A. 507. As relevant

here, the Report made four findings that led to its conclusion that IonQ was running a

“quantum Ponzi scheme.” J.A. 508.

First, Scorpion Capital said its “research indicate[d] that IonQ’s purported 32-qubit

‘world’s most powerful quantum computer’ is a brazen hoax.” J.A. 508; see, e.g., J.A. 558

(“Extensive interviews with ex-executives and employees confirm our findings and lead

us to conclude that the company’s claims of a 32-qubit machine are fraudulent.”).

Second, it deemed IonQ’s claims about “rapid miniaturization”—i.e.,

manufacturing their existing systems small enough to be commercially practical—to be

“completely outrageous.” J.A. 579–80; see, e.g., J.A. 586 (quoting an anonymous ex-

employee as calling IonQ’s “promotion of server-sized IonQ machines by next year” “just

baloney”).

Third, it stated that IonQ misled investors about the efficacy of its computers by

mischaracterizing “‘pernicious’ error rates” as indicating strong performance. J.A. 509;

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see, e.g., J.A. 607 (“Virtually every ex-IonQ employee and expert we interviewed slammed

the error rates shown as a joke.”).

Fourth, it concluded that “IonQ’s revenue and bookings are driven by phony related-

party deals” which “creat[ed] the illusion of commercial momentum prior to” its public

listing after merging with dMY. J.A.

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