This repository includes a Stata workflow designed to process, clean, and merge LM (Labor Management) forms submitted by labor unions, including LM-2, LM-3, LM-4, and LM-5 filings, and maintained by the U.S. Department of Labor (DOL). Please cite the following paper if you use the code or the cleaned dataset: Carlos F. Avenancio-León, Alessio Piccolo, Roberto Pinto, Resilience in collective bargaining, Journal of Financial Economics, Volume 173, 2025.