The ticker ESIO once identified Electro Scientific Industries, Inc., a Portland based laser microfabrication equipment maker that traded on Nasdaq from 1983 until early 2019. The company no longer exists as a public issuer. MKS Instruments completed its all cash acquisition of ESI at a fixed price of $30 per share, and the Nasdaq delisted the shares the same day. The registrant then filed a termination of registration under Section 12(g), and no periodic report has appeared on the CIK since the deal closed in early 2019.
This report documents the finding that the ESIO ticker is defunct, following the verification path the pipeline requires. The SEC company tickers file carries no entry for ESIO, and the exchange tickers file is equally silent. The EDGAR browse page for CIK 0000726514 shows a filing history that ends with the merger. The last substantive periodic filings were a quarterly report for the quarter that closed in late December 2018, and an annual report for the fiscal year that closed in March of the same year. The gap between that last quarterly report and the present exceeds seven years, far beyond the twelve month threshold in the dispatch brief. The absence of any new filing activity confirms the terminal status of the registrant, and the note report format that follows is the appropriate output.