Whether the results of the initial K-55-1 drill hole were material inside information such that informed persons had to disclose the information or abstain from trading.
Holding
Yes. The K-55-1 results were material when obtained, and persons who traded while aware of those undisclosed results violated § 10(b) and Rule 10b-5.
Reasoning
Rule 10b-5 rests on the principle that investors trading in an impersonal market should have relatively equal access to material corporate information. Anyone with access to information intended for a corporate purpose, rather than personal use, must either disclose it effectively or abstain from trading while it remains undisclosed. A legitimate corporate reason for confidentiality—here, the effort to acquire neighboring land—did not permit informed employees to trade personally during the period of secrecy.
Materiality turns on whether a reasonable investor would consider a fact important in deciding whether to buy, sell, or hold. The court rejected a standard limited to conservative investors; speculators and chartists are also reasonable market participants entitled to equal access to material facts. For contingent events, materiality depends on the event's probability and its anticipated magnitude in light of the company's overall activity.
The first core was extraordinarily rich, long, and near the surface, and it was found within a large anomaly. Although one core did not prove a mine, it made the possibility of a very valuable discovery sufficiently substantial that the information could affect TGS's market price and would matter to a reasonable investor. The insiders' own purchases of stock and short-term calls strongly confirmed the practical importance they attached to the information.
Accordingly, Fogarty, Mollison, Holyk, Darke, Huntington, and Clayton were liable for their pre-April 9 purchases if they possessed the K-55-1 information. The court affirmed dismissal as to Murray because the record did not show that he had detailed knowledge or traded on material inside information.