Overview
- The Tokyo District Public Prosecutors Office’s special investigations unit announced the arrests on February 2 in a case linked to Nidec’s planned tender offer for Makino Milling.
- Prosecutors identify the former director as Tsukasa Nakamoto and say he conspired with company executives Yuunobu Matsuki, 44, and Masayuki Kobayashi, 39, to trade before disclosure.
- Authorities allege approximately 329,100 Makino shares were bought between September and December 2024 for about ¥23.498 billion after takeover information was obtained around August 28.
- Reports say the information was accessed while Mita Securities was negotiating to act as Nidec’s TOB agent, and Asahi reports the purchases were executed across 16 accounts.
- Outlets differ on the arrest count, with Mainichi and Asahi citing three suspects and Jiji reporting five, as the probe proceeds following Nidec’s 2025 bid and subsequent withdrawal.