Every day, we sift through the filings to spot where the real conviction lies β cutting through the noise to highlight the most meaningful insider moves.
π Six Flags Entertainment $FUN β Rehan Jaffer purchased $5.89 Million via Form 4.
The founder and portfolio manager of Perceptive Advisors continues to build a meaningful position in the leisure operator.
π Fiserv $FI β Chief Administrative & Legal Officer Doyle R. Simons / multiple directors purchased $1.07 Million via Form 4.
Broad-based insider participation across the payments technology company in freefall.
π American Bitcoin $ABTC β Richard Busch purchased $391,500 via Form 4.
A board-level insider adding exposure to the Trump family-linked bitcoin mining company. Insider buying in newly public or emerging companies can be particularly interesting, as leadership is often closest to the early growth trajectory.
Hereβs The Hot Corner, with data from June 16, 2026:
π Super Micro Computer $SMCI β Jane Street Group increased its 13G stake from 5.10% to 8.50%.
The global quantitative trading firm significantly expanded its position, taking ownership well beyond the 5% reporting threshold. Increases of this magnitude suggest a much more meaningful allocation than a typical trading position.
π UP Fintech $TIGR β Avenir Tech increased its stake from 5.90% to 10.90% via 13G.
Technology-focused investment firm substantially increased its ownership position in the Asian broker as shares continue to slide.
