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Sec Enforcement Of The Rule I0b-5 Duty To Disclose Material Information-Remedies And The Texas Gulf Sulphur Case, Edmund B. Frost
Sec Enforcement Of The Rule I0b-5 Duty To Disclose Material Information-Remedies And The Texas Gulf Sulphur Case, Edmund B. Frost
Michigan Law Review
On April 16, 1964, the Texas Gulf Sulphur Company announced one of the most significant mineral discoveries of the twentieth century-a major copper and zinc deposit near Timmins, Ontario, found by means of geophysical exploration and exploratory drilling. Unusual market activity prior to this announcement prompted a Securities Exchange Commission (SEC) investigation of insider stock transactions. In April 1965, the SEC brought suit against a group of Texas Gulf insiders, alleging that their purchase of stock on national exchanges before the disclosure of the information concerning the Timmins strike constituted a violation of section 10(b) of the Securities Exchange Act …