Peng Guo v. Mich. Tech. Univ.

CourtCourt of Appeals for the Sixth Circuit
DecidedJune 23, 2026
Docket25-1077
StatusUnpublished

This text of Peng Guo v. Mich. Tech. Univ. (Peng Guo v. Mich. Tech. Univ.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Sixth Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Peng Guo v. Mich. Tech. Univ., (6th Cir. 2026).

Opinion

NOT RECOMMENDED FOR PUBLICATION File Name: 26a0272n.06

Nos. 24-1891 / 25-1077

UNITED STATES COURT OF APPEALS FOR THE SIXTH CIRCUIT FILED Jun 23, 2026 ) KELLY L. STEPHENS, Clerk PENG GUO, Ph.D., ) Plaintiff-Appellant (24-1891), ) Plaintiff-Appellee (25-1077), ) ) ON APPEAL FROM THE v. ) UNITED STATES DISTRICT ) COURT FOR THE WESTERN MICHIGAN TECHNOLOGICAL UNIVERSITY ) DISTRICT OF MICHIGAN and DEAN L. JOHNSON, ) ) OPINION Defendants-Appellees (24-1891), Defendants-Appellants (25-1077). )

Before: SUTTON, Chief Judge; STRANCH and LARSEN, Circuit Judges.

LARSEN, Circuit Judge. A jury found Michigan Technological University liable for

pregnancy discrimination against one of its professors, Peng Guo. But Guo contends that the

discrimination extended beyond just pregnancy. She believes the jury should have heard other

allegations of sex, race, and national origin discrimination, which the district court disposed of at

summary judgment. She appeals the summary judgment decision. Michigan Tech also appeals,

claiming that no pregnancy discrimination occurred, so the jury verdict should be set aside.

Because the district court did not err in its rulings, we AFFIRM across the board.

I.

Plaintiff Peng Guo was the nonmoving party at the summary judgment stage and then

obtained a favorable jury verdict, so we recite the facts in the light most favorable to her. Guo is

a Chinese-born, Asian woman. She came to the United States for graduate school. While she was

completing her graduate studies, Michigan Technological University offered her and her husband, Nos. 24-1891/25-1077, Guo v. Michigan Technological University

J. Daniel Eshleman, positions as assistant professors of accounting. Guo’s offer was contingent

upon Eshleman accepting his offer, but Eshleman’s offer contained no such contingency. At the

time of the offers, Eshleman, who was American-born and white, had already earned his PhD and

was a tenure-track professor at Oklahoma State University. Guo was still working towards her

PhD and had no prior tenure-track experience.

Both Eshleman and Guo received tenure-track offers, with a six-year tenure clock.

Michigan Tech evaluates progress toward tenure with a minor review in the first, third, and fifth

years; a major review in the second and fourth years; and a final tenure review in the sixth year.

The couple accepted the offers and began teaching in August 2015, receiving the same starting

salary.

In the fall of 2016, Guo and Eshleman began their second year at Michigan Tech. At the

beginning of the academic year, Guo was assigned to serve on the Research Committee. And she

informed the university that she was pregnant. A short time later, Defendant Dean Johnson, Dean

of the College of Business, offered Guo a nine-month appointment as the “Richard and Joyce Ten

Haken Faculty Fellow in Accounting” for that academic year. R. 165-4, Ex. 4, PageID 1992. The

fellowship included a $1,750 stipend. At the end of the calendar year, both Guo and Eshleman

received merit-based pay increases of 1.5%.

Guo took maternity leave during the Spring 2017 semester. Michigan Tech offered tenure-

track faculty two parental leave options. Professors could “choose to be relieved of all duties while

on leave of absence” while receiving “full pay for up to 6 weeks.” R. 165-1, Ex. 1, PageID 1958.

Or they could elect “one semester at full pay while being relieved from teaching duties for the

duration of the leave of absence but continuing to perform their other duties at 50% in a research

-2- Nos. 24-1891/25-1077, Guo v. Michigan Technological University

capacity including graduate student supervision.” Id. The policy was silent as to service

requirements. Guo chose the second option.

On January 8, 2017, while Guo was on leave, another professor emailed Guo and others

regarding the semester’s agenda for the Research Committee. The email expressed the professor’s

hope that Guo would continue organizing brown bag seminars, a form of academic service,

throughout the semester. Separately, the professor sent a calendar invitation for a committee

meeting on January 11. Guo responded to the invitation the following day, January 9: “I will not

be able to come to this meeting. I will be delivering my baby soon and am on maternity leave this

semester.” R. 165-9, Ex. 9, PageID 2029. No one responded.

Guo gave birth on January 12 via emergency C-section. On January 22, she responded to

the agenda email saying, “I would love to keep organizing the brown bag seminar. I may not be

able to attend all presentations, but will be able to coordinate them by email.” Id. at 2028. The

other professor then thanked Guo for her offer and said, “Please let me know if you need any

support.” R. 165-8, Ex. 8, PageID 2024.

On February 2, Guo received a calendar invitation to attend her annual review with Dean

Johnson—scheduled for February 13. Guo attended the review. During the meeting, Johnson told

her, “you’re released from teaching and you’re only doing 50 percent of research[,] so you have

lots of . . . free time, and you should really use that freedom.” R. 157, Trial Tr., PageID 1514–15.

Guo could not remember what Johnson asked her to do but it was “something work related.” Id.

at 1515. Guo responded that the “free time” was the time she needed for childcare and recovery.

Id. Johnson didn’t say “too much” in response, but he reminded her of her tenure clock and told

her she needed to complete a professional development plan, addressing her “plan now that [she]

ha[d] a baby” and her “plan moving forward.” Id. at 1515–16.

-3- Nos. 24-1891/25-1077, Guo v. Michigan Technological University

Throughout Guo’s maternity leave, Johnson expected her to perform service duties. Guo

performed them by, for example, delivering food for the Research Committee seminars. But at

some point during Guo’s leave, the university provost had informed Johnson that, although the

school’s leave policy did not explicitly address service, employees were supposed to be relieved

from such duties.

Guo resumed her full workload in the Fall 2017 semester. Near the beginning of the

academic year, Johnson again offered her a nine-month appointment as the Ten Haken Fellow in

Accounting/Finance, which again provided a stipend. Eshleman was offered the Ten Haken

Fellowship in Business for the same academic year. Guo’s and Eshleman’s fellowship stipends

were identical. Near the end of the calendar year, Guo received a merit-based pay raise of 1.13%.

Her husband received a raise of 2.24%. After doing some calculations, Guo discovered that, in

2017, she had received the lowest overall salary increase in the College of Business and that the

average increase was more than double what she received.1

The following semester, in February 2018, Guo had her interim review. During reviews,

Michigan Tech evaluates a professor’s research, teaching, and service, giving more weight to

research (50%) and teaching (40%) than to service (10%). In evaluating Guo’s performance,

Johnson noted that she had two forthcoming peer-reviewed articles and stated that she needed to

“build her research pipeline.” R. 165-4, Ex. 4, PageID 1979. He rated her teaching performance

1 It’s unclear whether Guo is comparing apples to apples. Michigan Tech provided two types of salary increases: merit and equity.

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