Mark Charlton-Perkins v. Univ. of Cincinnati

Court of Appeals for the Sixth Circuit·Decided August 5, 2026·No. 25-3693·Published

Opinion

RECOMMENDED FOR PUBLICATION Pursuant to Sixth Circuit I.O.P. 32.1(b)

File Name: 26a0217p.06

UNITED STATES COURT OF APPEALS FOR THE SIXTH CIRCUIT

MARK CHARLTON-PERKINS, │

Plaintiff-Appellant, │ > No. 25-3693 │

v. │ │

UNIVERSITY OF CINCINNATI; KENNETH PETREN, in his │ official and individual capacities; GEORGE UETZ, in │ his official and individual capacities, │ Defendants-Appellees. │ ┘

Appeal from the United States District Court for the Southern District of Ohio at Cincinnati.

No. 1:20-cv-00179—Timothy S. Black, District Judge.

Argued: May 27, 2026

Decided and Filed: August 5, 2026

Before: SILER, BUSH, and MURPHY, Circuit Judges.

COUNSEL

ARGUED: Marc D. Mezibov, MARC D. MEZIBOV, LLC, Cincinnati, Ohio, for Appellant. Evan T. Priestle, TAFT STETTINIUS & HOLLISTER LLP, Cincinnati, Ohio, for Appellees. ON BRIEF: Marc D. Mezibov, MARC D. MEZIBOV, LLC, Cincinnati, Ohio, for Appellant. Evan T. Priestle, TAFT STETTINIUS & HOLLISTER LLP, Cincinnati, Ohio, for Appellees.

BUSH, J., delivered the opinion of the court in which SILER and MURPHY, JJ., concurred. MURPHY, J. (pp. 26–32), delivered a separate concurring opinion.

No. 25-3693 Charlton-Perkins v. Univ. of Cincinnati, et al. Page 2

OPINION

JOHN K. BUSH, Circuit Judge. While living in the United Kingdom, Dr. Mark Charlton-Perkins applied for an assistant professor position at the University of Cincinnati. A faculty panel recommended him for the position, but after consternation about his gender and an alleged conflict of interest, the University cancelled the job search. Charlton-Perkins brought Title IX and equal-protection claims against the University and two of its administrators. The district court granted summary judgment to Defendants on all claims. Because Title IX protects only persons in the United States, and because sovereign and qualified immunities bar his equal- protection claims, we AFFIRM the judgment of the district court.

I.

Dr. Mark Charlton-Perkins is a United States citizen who was born in South Africa.

Later he resided in the United States, where he received his PhD in molecular and developmental biology from the University of Cincinnati. In 2015, he moved to the United Kingdom to work as a research assistant at the University of Cambridge. At all times relevant to this case, he resided in the United Kingdom despite being a United States citizen.

In September 2017, the University of Cincinnati’s biology department began a hiring search for a new assistant professorship in cell biology. Dr. George Uetz, the Head of the Biology Department, appointed four of the department’s professors to a search committee. He chose one of those professors, Dr. Elke Buschbeck, to chair the committee. The committee interviewed candidates, ranked them, and provided a hiring recommendation to Uetz. Uetz was responsible for sharing the committee’s findings with—and presenting its recommendation to— the Dean of the College of Arts and Sciences, Dr. Ken Petren. The Dean had sole authority to approve hires or cancel a search.

Charlton-Perkins applied for the position. Even before the application, Buschbeck was familiar with Charlton-Perkins’s work, having served on his doctoral thesis advisory committee and coauthored multiple scientific publications with him. Sensing that this preexisting

No. 25-3693 Charlton-Perkins v. Univ. of Cincinnati, et al. Page 3

relationship could create an appearance of favoritism, Buschbeck told a University administrator and the rest of the search committee about her ties to Charlton-Perkins after he interviewed over Skype. The administrator advised Buschbeck that the relationship did not create a conflict of interest.

Charlton-Perkins then survived successive rounds of cuts before interviewing in-person in Cincinnati in February 2018. As part of the interview, he gave an hour-long seminar and met with the search committee and Uetz. After this, the committee narrowed its search to four candidates—two women and two men—including Charlton-Perkins. Eventually, by a three-toone vote, the search committee settled on Charlton-Perkins as its top choice for the position.

This endorsement was shared with Uetz. At the same time, Uetz also received feedback about Charlton-Perkins’s candidacy from faculty members not appointed to the search committee, most of which was negative. Some comments concerned Buschbeck’s potential bias toward Charlton-Perkins. Others concerned his race and gender. One faculty member expressed concern to Uetz that Charlton-Perkins, a white male, “would not provide [a] much-needed increase in diversity.” R. 31-6, Ex. to Buschbeck Dep., PageID 1028. Similarly, another detractor told Uetz that Charlton-Perkins “brings the opposite of diversity and . . . demographics” as a candidate. R. 29, Uetz Dep., PageID 473. Finally, an email, described by Uetz as “encapsulat[ing]” the views of several faculty members, discounted Charlton-Perkins’s candidacy for his inability to bring diversity to the department. R. 29-15, Ex. to Uetz Dep., PageID 736. The email’s author also complained that Buschbeck’s advocacy for Charlton-Perkins frustrated the overall aim “of hiring women.” Id.

Uetz conferred with Petren, expressing concerns about “[t]he political climate” and “posturing regarding affirmative action” and asking if it were permissible to hire a man over two well-qualified female candidates. R. 29, Uetz Dep., PageID 430. Petren responded that hiring a man would be permissible. Uetz also raised the conflict-of-interest issue, and Petren directed him to investigate further. During Uetz’s investigation, six faculty members expressed concerns about Buschbeck’s relationship with Charlton-Perkins and her advocacy for his hiring.

No. 25-3693 Charlton-Perkins v. Univ. of Cincinnati, et al. Page 4

Despite receiving a clear recommendation from the search committee, Petren and Uetz put the hiring decision on hold. In early March 2018, Uetz informed the search committee that he and Petren wanted to shift away from Charlton-Perkins and “focus on the women candidates first.” R. 50-1, Statement of Undisputed Material Facts, PageID 1646. That did not sit well with Buschbeck. She protested that this emphasis on hiring women was “plain discrimination” against Charlton-Perkins and might even constitute illegal gender discrimination. R. 31, Buschbeck Dep., PageID 895. Uetz responded that he did not think that the hiring approach was illegal and emphasized that Buschbeck, as head of the search committee, “would need to make the case why a male candidate should be hired over a qualified female candidate.” R. 29-19, Ex. to Uetz Dep., PageID 750. Soon after, Petren met with Buschbeck and told her that he decided not to follow the search committee’s vote in part because “[b]iology is short on women,” so “he thought that it would be better to go with a female candidate.” R. 31-15, Ex. to Buschbeck Dep., PageID 1064. Petren also cited the perceived conflict of interest and the divided support of the faculty beyond the search committee as factors influencing his decision.

But later Petren had second thoughts. Rather than proceed with hiring for the new position, Petren cancelled the search altogether and informed the faculty a few days later. Uetz noted that factors supporting the no-go decision included “the gender of the candidates” and the conflict-of-interest concerns raised by faculty members. R. 29-13, Uetz Notes, PageID 728; see also R. 29-14, Uetz Timeline, PageID 731 (“gender balance of the department” was a factor involved in the decision to “focus first on the two women candidates”).

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