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No. 10631642
United States Court of Appeals for the Ninth Circuit
United States v. Schena
No. 10631642 · Decided July 11, 2025
No. 10631642·Ninth Circuit · 2025·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
July 11, 2025
Citation
No. 10631642
Disposition
See opinion text.
Full Opinion
NOT FOR PUBLICATION FILED
UNITED STATES COURT OF APPEALS JUL 11 2025
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
FOR THE NINTH CIRCUIT
UNITED STATES OF AMERICA, No. 23-2989
D.C. No.
Plaintiff - Appellee, 5:20-cr-00425-EJD-1
v.
MEMORANDUM*
MARK SCHENA,
Defendant - Appellant.
Appeal from the United States District Court
for the Northern District of California
Edward J. Davila, District Judge, Presiding
Argued and Submitted February 11, 2025
Honolulu, Hawaii
Before: S.R. THOMAS, BRESS, and DE ALBA, Circuit Judges.
Mark Schena appeals his convictions for one count of conspiracy to commit
healthcare fraud, 18 U.S.C. § 1349; two counts of healthcare fraud, 18 U.S.C. §§ 2,
1347; one count of conspiracy to violate the Eliminating Kickbacks in Recovery Act
(EKRA), 18 U.S.C. § 371; two counts of EKRA violations, 18 U.S.C. §§ 2,
220(a)(2); and three counts of securities fraud, 15 U.S.C. §§ 78j, 78ff; 17 C.F.R.
*
This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
240.10b-5; 18 U.S.C. § 2. Schena also appeals his restitution order. In an
accompanying opinion, we hold that Schena’s conduct fell within the scope of
EKRA. In this memorandum disposition, we reject Schena’s remaining challenges
to his convictions. But as to his restitution order, we affirm in part, vacate in part,
and remand for further consideration.
1. Schena contends that his EKRA convictions should be reversed
because the district court improperly allowed expert and lay witnesses to offer legal
opinions about EKRA’s scope. We review preserved evidentiary objections for
abuse of discretion and unpreserved objections for plain error. United States v.
Alahmedalabdaloklah, 94 F.4th 782, 835–36 (9th Cir. 2024). In this case, it is not
apparent that Schena objected to much of the challenged testimony. But even
assuming he did, there was no reversible error.
In the case of the expert witnesses, Quindoza and Kondratenko, some of the
testimony in question concerned either basic background on healthcare fraud based
on the witnesses’ training and experience, or else the witnesses’ views on Medicare
policy. To the extent their testimony veered into impermissible legal conclusions,
Schena for the most part did not object. And in the context of the trial as a whole—
which involved extensive evidence of healthcare fraud—the experts’ allegedly
objectionable testimony did not materially affect the verdict. Even assuming the
government bore the burden given the lack of objections, it has demonstrated that
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“it is more probable than not that the jury would have reached the same verdict”
absent the disputed testimony. United States v. Wells, 879 F.3d 900, 923–24 (9th
Cir. 2018). In addition, and further minimizing any prejudice, the district court
instructed the jury on the law, and we presume that jurors followed the court’s
instructions. See United States v. Ovsepian, 113 F.4th 1193, 1201–02 (9th Cir.
2024).
In the case of the lay witness testimony, that testimony was relevant to
showing Schena’s wrongful intent. The lay witnesses testified that they knew about
EKRA and shared their concerns about possible EKRA violations with Schena. The
statute requires the government to prove that Schena acted “willfully,” 18 U.S.C.
§ 220(a), which means that the government must show that Schena had “knowledge
that his conduct was unlawful,” not just that he had “knowledge of the facts that
constitute the offense.” Bryan v. United States, 524 U.S. 184, 193 (1998). The lay
witnesses’ testimony was thus probative of an element of the offense that the
government had to prove. And once again, even assuming some of the testimony
crossed the line into legal opinion, it did not materially affect the verdict. Wells, 879
F.3d at 923–24. Nor was any cumulative error from the challenged expert and lay
testimony (whether preserved or not) prejudicial. See United States v. Wallace, 848
F.2d 1464, 1475 (9th Cir. 1988) (noting that errors can be reversible in the aggregate
even when any individual error is not).
3 23-2989
2. We reject Schena’s challenge to the jury instructions on the healthcare
fraud and EKRA counts. Because Schena did not sufficiently object to the
instruction in question, we review for plain error. United States v. Rodriguez, 971
F.3d 1005, 1012 (9th Cir. 2020). To establish plain error, Schena must show “(1)
error, (2) that is plain, (3) that affected substantial rights, and (4) that seriously
affected the fairness, integrity or public reputation of the judicial proceedings.”
United States v. Ferguson, 8 F.4th 1143, 1145–46 (9th Cir. 2021) (quoting United
States v. Borowy, 595 F.3d 1045, 1049 (9th Cir. 2010) (per curiam)).
Both the EKRA and healthcare fraud charges required the government to
prove that Schena acted “knowingly and willfully.” 18 U.S.C. § 220(a), 1347(a).
While “willfully” in this context requires the government to show that the defendant
knew his behavior was illegal, “knowingly” only requires “knowledge of the facts
that constitute the offense.” Bryan, 524 U.S. at 193. To avoid the potential for
confusion, when the government is required to prove that the defendant knew his
conduct was unlawful, our model jury instructions direct district courts to omit from
the “knowingly” instruction certain language stating that “[t]he government is not
required to prove that the defendant knew that [his] . . . acts or omissions were
unlawful.” Ninth Cir. Model Jury Inst. 4.8 cmt.
In this case, the “knowingly” instruction included this language, apparently
inadvertently, and neither the parties nor the district court caught the issue at the
4 23-2989
time. Nevertheless, we discern no plain error. The instructions did not logically
conflict because they applied to different mens rea. The jury was instructed that it
had to find that Schena acted both knowingly and willfully. And the jury was
properly instructed that, as to the counts in question, “willfully” required the
government to prove that Schena knew his conduct was unlawful. When the jury
raised questions about the mens rea requirements, the district court reminded jurors
that “[t]he Government must prove each element of each offense.” There was also
extensive evidence showing that Schena knew his conduct was unlawful. Our
decision in United States v. Liu, 731 F.3d 982 (9th Cir. 2013), does not require a
different result because there, unlike here, the district court “never clarified what
[the defendant] needed to know.” Id. at 995.
3. Schena next challenges the sufficiency of the evidence on his securities
fraud convictions. For such a challenge, we view the evidence in the light most
favorable to the government. United States v. Nevils, 598 F.3d 1158, 1163–64 (9th
Cir. 2010) (en banc). Schena concedes he did not move for acquittal on these counts
below, and so we review for plain error. United States v. Lopez, 4 F.4th 706, 719
(9th Cir. 2021).
a. Schena’s challenge to Count 7 is without merit. This charge was based
on an Arrayit press release “announc[ing] an allergy testing agreement . . . with
Sutter Health,” a large healthcare provider. In reality, Arrayit had only received
5 23-2989
interest from a few doctors at Sutter-owned Palo Alto Medical Foundation (PAMF),
and the only contact Arrayit had with Sutter itself was when Sutter sent Arrayit a
cease-and-desist letter. While the body of the press release does state that the
machines are to be provided to the PAMF doctors, it also references to an “agreement
with Sutter Health,” says that the company’s allergy testing now “include[s] a major
healthcare provider,” and states that Arrayit is “[p]artnering with healthcare leader
Sutter Health.” A reasonable jury could find that investors would interpret the press
release to falsely imply that Arrayit had an agreement with Sutter.
b. Schena’s challenge to Count 8 is similarly meritless. This charge
stemmed from a tweet in which Arrayit announced it had started a $240 million “test
kit manufacturing run.” Schena does not appear to challenge the falsity of the
statement and only argues that the statement was not material. He points to the fact
that the two investors who testified at trial said the tweet did not immediately lead
them to trade Arrayit stock. But the witnesses did not say the tweet did not matter
to them. In fact, one said it would have affected “long term” trades. Moreover,
Arrayit received a significant number of inquiries from investors asking about the
tweet. Taken together, the evidence is sufficient to support a reasonable jury’s
determination that there was a “substantial likelihood that a reasonable shareholder
would consider [the tweet] important.” Basic Inc. v. Levinson, 485 U.S. 224, 231
(1988) (quoting TSC Industries, Inc. v. Northway, Inc., 426 U.S. 438, 449 (1976)).
6 23-2989
c. Schena’s challenge to Count 9 also fails. This count involved a series
of emails that Schena sent telling investors that Arrayit had received “more than
50,000 requests” for its COVID test. At the time, it had received fewer than 1,000
requests, and no test was ready or approved by the Food and Drug Administration.
Schena argues that the 50,000 figure was not material and the emails should be read
to imply that the tests were in development and not necessarily ready. But a
reasonable investor at the outset of the pandemic could have found the 50,000 figure
material. Nor was the jury required to credit Schena’s explanation that he meant
only that the test was still in development.
4. The district court ordered $24,289,540 in restitution, based on
$21,562,300 in losses associated with the securities fraud violations and $2,772,240
in losses by insurers in connection with the healthcare fraud counts (the district court
ordered forfeiture of this same latter amount). We address each component of the
restitution order in turn.
a. We vacate the restitution order to the extent of the $21,562,300
allegedly attributable to the securities fraud violations. A restitution award “can
compensate ‘only for the loss caused by the specific conduct that is the basis of the
offense of conviction,’ so long as that offense does not involve an element of
scheme, conspiracy or pattern of criminal activity.” United States v. Batson, 608
F.3d 630, 637 (9th Cir. 2010) (quoting Hughey v. United States, 495 U.S. 411, 413
7 23-2989
(1990)); see also United States v. Reed, 80 F.3d 1419, 1422 (9th Cir. 1996)
(explaining that circuit precedent “prohibit[s] the trial court from ordering restitution
for conduct that is related to the offense of conviction, but that is not an element of
the offense”).
In this case, a fraudulent scheme was not a necessary element of the offense,
but the government maintains it was the basis of Schena’s conviction, thus justifying
a restitution award based on the claimed duration of the scheme, which allegedly
spanned July 15, 2015, to April 14, 2020. Although the indictment contains
allegations of such a scheme, Counts 7–9 were more specifically based on three false
and misleading statements made on November 19, 2018, August 8, 2019, and March
19, 2020, respectively.
Between the indictment, jury instructions, verdict form, and record as a whole,
the parties debate whether the broader five-year scheme can be said to reflect “the
specific conduct that is the basis of the offense of conviction” on the securities fraud
counts. Batson, 608 F.3d at 637 (quoting Hughey, 495 U.S. at 413). But in assessing
loss for purposes of the Sentencing Guidelines, the district court already recognized
that it could not determine whether the claimed $21,562,300 loss to investors was
tethered to “the three instances of securities fraud conduct charged in the
Superseding Indictment.” In so finding, the district court treated “Mr. Schena’s
conduct of conviction” as the “three instances” of false disclosures identified in
8 23-2989
Counts 7–9. Even with the different burden of proof applied to the loss calculation,
the district court’s characterization of Schena’s conduct of conviction undermines
the government’s reliance on a five-year scheme as the basis for the securities fraud
convictions. We accordingly vacate the restitution award as to the securities fraud
violations and remand for the district court to calculate it based on the specific
conduct that was the basis for these three counts of conviction. See Batson, 608 F.3d
at 637.
Schena also points out that the district court, in rejecting the government’s
loss calculation for Guidelines purposes, questioned the basis for the government’s
assertion that Arrayit’s stock became worthless upon Schena’s arrest, as well as the
government’s reliance on a “first-in, first-out” methodology that was, in the district
court’s view, “devoid of any data or calculations” that would permit meaningful
judicial evaluation. On remand, the district court may consider these objections in
reevaluating this portion of the restitution award.
b. We affirm the district court’s $2.7 million restitution award for
healthcare fraud and its related forfeiture award. Schena argues that the district court
erred because the allergy testing was not entirely worthless. We review this factual
issue for clear error. United States v. Dadyan, 76 F.4th 955, 961 (9th Cir. 2023).
Testimony at trial supported the government’s theory that insurers would not have
paid any claims had they known that Arrayit was performing more tests than
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medically necessary and was otherwise engaging in fraudulent conduct. Therefore,
the district court did not clearly err in concluding that all the money received from
insurers could be considered the result of Schena’s healthcare fraud.
* * *
We affirm Schena’s convictions and the $2.7 million restitution and forfeiture
orders associated with the healthcare fraud counts. We vacate only the $21.5 million
restitution award for the securities law violations and remand solely for a
redetermination of that portion of the restitution award.
AFFIRMED IN PART, VACATED AND REMANDED IN PART.
10 23-2989
Plain English Summary
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JUL 11 2025 MOLLY C.
Key Points
01NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JUL 11 2025 MOLLY C.
02COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.
03Davila, District Judge, Presiding Argued and Submitted February 11, 2025 Honolulu, Hawaii Before: S.R.
04Mark Schena appeals his convictions for one count of conspiracy to commit healthcare fraud, 18 U.S.C.
Frequently Asked Questions
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JUL 11 2025 MOLLY C.
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