In roughly reverse chronological order:

For a seminar on the relative Langlands program, organized by Gyujin Oh:

For a series of seminars loosely around the topic of *p*-adic modular forms and Hida theory, primarily organized by David Marcil:

- Hilbert modular varieties and Hecke operators
- Higher Hida theory (slides)
- Lambda-adic Galois representations

Assorted other seminars:

- Introduction to prismatic cohomology (slides), for a virtual seminar on prismatic cohomology organized at UCLA
- The Tannakian formalism and the motivic Galois group, for a seminar on motives, standard conjectures, and Weil cohomology theories organized by Morena Porzio
- Taxicab numbers, for the Undergraduate Mathematics Society at Columbia
- Hilbert schemes, for a seminar on knot homology and derived affine Hecke algebras, organized by Zoe Himwich, Davis Lazowski, and Sam DeHority
- Hodge-Tate and crystalline comparison theorems, for the Spring 2021 STAGE seminar on prismatic cohomology