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© 2026 InsiderTradingScreener.com. Data from SEC EDGAR Form 4 filings.For informational purposes only. Not financial advice.
Home/Insiders/RACHESKY MARK H MD

RACHESKY MARK H MD

Director

Director
Total trades
51
Bought (open market)
$5M
Sold (open market)
$0
Acquired (grants)
$861K
Tickers traded
3
Mark Rachesky, M.D., has maintained a decidedly one-sided posture in his disclosed trading over the period covered by recent Form 4 filings, with a cumulative buy-side value of approximately $5.0 million against zero open-market sales. The overwhelming majority of that capital deployment occurred on June 2, 2025, when he executed two open-market purchases in STRZ totaling roughly $5.0 million—$4.42 million and $582,895, respectively. That concentrated accumulation stands in contrast to his activity in LION, where a cluster of transactions on July 8, 2026, included both purchases and sales, though the reported dollar values for those trades were listed as zero, making the net direction ambiguous. Across all three tickers—STRZ, LION, and TWI—his trading pattern is dominated by non-discretionary or compensatory events: grants (code A), option exercises (code M), and tax-withholding dispositions, which collectively account for most of the 49 total filings. The recent cadence reinforces a bias toward acquisition rather than distribution. In the nine most recent buy-coded events, only the STRZ purchases from June 2025 carried a meaningful price tag; the remaining buys in LION were recorded at zero value, suggesting either nominal share counts or data omissions. Meanwhile, the five sell-coded events were all LION transactions on the same July 2026 date, also valued at zero, which prevents a clear read on whether he is trimming a position or merely executing routine adjustments. His only notable sell-side activity in the broader window is absent—no open-market sales (code S) with positive dollar values appear anywhere in the record, reinforcing that his disclosed intent has been overwhelmingly accumulative, particularly in STRZ, where the June 2025 purchases dwarf all other activity. The compensatory grants and exercises—such as the $179,998 award in TWI on June 23, 2026, and the $139,900 option exercise in TWI on February 9, 2026—are mechanical by nature and do not reflect discretionary conviction. What stands out is the singular, large open-market buy in STRZ, which, when paired with the absence of any corresponding sales, suggests a deliberate concentration of capital in that name. The LION trades, while frequent, lack the dollar transparency needed to assess their significance, leaving the overall narrative as one of a buyer who has committed real money to a single ticker while treating the others as vehicles for compensation-driven activity.

AI-assisted summary

Recent trades

Most recent Form 4 filings by RACHESKY MARK H MD.

  • RACHESKY MARK H MDgranted13,405 shares ofLIONat $11.19$150KSep 15 · filed Sep 17Details
  • RACHESKY MARK H MDgranted6,792 shares ofLIONat $11.19$76KSep 15 · filed Sep 17Details
  • RACHESKY MARK H MDgranted1,946 shares ofSTRZat $0Jul 28 · filed Jul 30Details

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  • RACHESKY MARK H MDsold25,173,882 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDsold1,469,450 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDsold3,701,988 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDbought797,526 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDbought1,916,271 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDbought11,154,680 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDsold499,765 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDbought499,765 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDbought15,804,919 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDbought671,924 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDsold11,755,412 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDbought11,755,412 shares ofLIONJul 8 · filed Jul 10Details
  • RACHESKY MARK H MDgranted24,725 shares ofTWIat $7.28$180KJun 23 · filed Jun 25Details
  • RACHESKY MARK H MDgranted6,488 shares ofSTRZat $0May 15 · filed May 19Details
  • RACHESKY MARK H MDgranted7,983 shares ofLIONat $9.52$76KApr 1 · filed Apr 3Details
  • RACHESKY MARK H MDexercised20,000 shares ofTWIat $6.995$140KFeb 9 · filed Feb 11Details
  • RACHESKY MARK H MDgranted4,753 shares ofSTRZat $10.52$50KJan 27 · filed Jan 29Details
  • View all 51 trades →