Public reporting locates 45 distinct researcher moves between frontier labs announced from February 2025 through July 2026, after merging duplicate spellings and dropping affiliation artifacts from 53 candidate rows. This is a sourced public-record census, not a complete HR roster: quiet, unreported moves are absent. Broader-scope entrants (Thinking Machines Lab, AMI, Cohere, Apple) are included and noted in the method line.
Public-record census of researcher moves between frontier labs, Jan 2025 – Oct 22, 2026. 53 extracted candidate rows curated to 45 distinct moves (duplicate name spellings merged; conflicting prior-affiliation rows and one under-corroborated row omitted). Each row is one announced move with its reporting month and source link; 10 rows rest on a single independent host and are flagged lower confidence. “Frontier labs” includes the commonly cited labs plus research-led new entrants (Thinking Machines Lab, AMI), Cohere and Apple's foundation-model team; product, policy and infrastructure-only moves were excluded. Role descriptions shortened for space.