I am a first-year math master's student looking to apply to math PhD programs next year.
Is it appropriate for me to cold-email a US math department to request information about the job placement of recent PhD graduates? For example, I may want to ask how many graduates with which advisers managed to get postdocs and eventually tenure-track positions at either research universities or liberal arts colleges. Another example is that I may ask how many graduates with which dissertation areas eventually obtained non-academic research jobs (e.g. Microsoft Research, NSA, US national laboratories).
Besides asking departments directly, I can only think of the Math Genealogy Project, which is not always complete, and the Annual Survey of the Mathematical Sciences, which has excellent data but only for broad groups of departments and broad classifications of research areas.