Insiders Dump and Buy Across Markets

The most striking cluster in recently filed disclosures comes from NVDA. Independent director Mark A. Stevens filed sales totalling more than $410 million across just three days in early September. The trades spanned multiple transactions on August 31, September 1, and September 2, with the largest single filing worth $98.5 million. The significance score on each transaction was modest, suggesting these were likely pre-arranged disposals rather than discretionary selling. Even so, the sheer scale stands out.

On the buying side, Ma Jianrong, Executive Chairman of Shenzhou International Group, filed purchases worth over $51 million across four days in early September. Shenzhou is a Hong Kong-listed garment manufacturer and Ma's repeated open-market buying across consecutive sessions signals personal conviction in the stock at current levels.

NMIH CEO Adam Pollitzer filed a $7.7 million sale in NMI Holdings on September 4. The trade carried a significance score of 3, suggesting it was discretionary rather than routine.

CAT CEO Joseph Creed filed a $9.8 million sale on September 1, though with a low significance score of 1, pointing to a pre-planned disposal.

The argenx CEO Timothy Van Hauwermeiren filed a $21 million sale in ARGX on September 5, also carrying a low significance score.

Note: ORTEX's first-party SEC EDGAR Form 4 tables were unavailable in this environment, so US trades above rely on the vendor insider dataset. Activist 13D filings could not be retrieved.