Worth a closer look
- Open-market purchase with their own money (Form 4 code P), not a grant or option exercise.
- Bought by the CFO, one of the two people with the fullest view of the company.
Reasons for caution
- Other insiders sold $1.7M in the same 90 days, more than was bought (100% of it pre-planned).
- Similar past buys beat the S&P 500 only 47% of the time (122 cases); the typical one trailed it by 1.5%.
What happened after this filing
Insider Twins: past buys with the same traits
2 insiders buying · incl. CEO or CFO · $250K–$1M · stock down 0–20% in 3 months
SEI Sep 9, 2025 +110.5% vs S&PNVCT Dec 26, 2024 +79.5% vs S&PCVRX Aug 15, 2024 +69.0% vs S&PNRSN Jun 17, 2026 -52.6% vs S&PNEOG Jan 16, 2025 -49.5% vs S&POPFI May 23, 2022 -36.1% vs S&PWhat we couldn't check
- Why they traded. Filings don't say, and we don't guess.
- Company news after the filing, and any private terms.
George Cardoza (CFO) bought $141K of SOPH at about $7.06 on Nov 6, 2026, reported to the SEC on Nov 9, 2026. Buys like this beat the S&P 500 47% of the time since 2020, against 46% for all insider buys. We found 2 points that make it worth a closer look and 2 reasons for caution. History, not a prediction.
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Written by fixed rules from SEC filings and our measured history, not by an AI model. Public data only. History, not a prediction, and not investment advice.