Hello bnc100, thanks for your question.
It sounds like you have a pretty good handle on your strengths and weaknesses. We don’t review resumes on this forum, but you’ve included plenty of information in your write-up.
Your GMAT quant score is a bit low, but I agree that you could mitigate that with your academic and professional credentials in that area.
In terms of extracurricular activities, what you’ve done more recently has more weight than what you did in college. For you, extracurricular activities need not be limited to official community service. You might also speak to your passions and interests as vehicles through which you have done good for the world. Maybe that expands the range of what you could discuss in that category?
I typically say that an applicant’s quants (GMAT, GPA) open the door at programs, but it’s the essays/experience that gets them admitted. Ultimately, your competitiveness will come down to the quality of your leadership experience in and out of work. Can you draw upon “moments” when you truly led: influenced individuals and organizations, drove results, took initiative?
Penn, Booth, and Kellogg are reaches for most applicants, and I think might be slight reaches for you. But, as I said, it really comes down to your ability to differentiate yourself in the essays! I think they’re definitely worth a shot, but I also advise including some safer choices in your target list to mitigate risk.
I hope this helps!
Best of luck,
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