Worth a closer look
- Open-market purchase with their own money (Form 4 code P), not a grant or option exercise.
- Bought by the CEO, one of the two people with the fullest view of the company.
- Raised their own holding by 12%.
- About 2× their largest earlier purchase here.
- Similar past buys beat the S&P 500 52% of the time (110 cases), above the 46% for all buys.
Reasons for caution
- None found in the data.
What happened after this filing
Insider Twins: past buys with the same traits
2 insiders buying · incl. CEO or CFO · $250K–$1M · stock down 20%+ in 3 months
BCAB Jun 23, 2022 +189.1% vs S&PFCNCA Mar 13, 2023 +106.4% vs S&PPFSI Mar 20, 2020 +98.6% vs S&PMYO May 15, 2025 -77.0% vs S&PMITT Mar 12, 2020 -68.1% vs S&PANDE Mar 18, 2020 -55.5% 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.
Thomas R. Stanton (CEO) bought $601K of ADTN at about $4.01 on Nov 6, 2026, reported to the SEC on Nov 9, 2026. Buys like this beat the S&P 500 52% of the time since 2020, against 46% for all insider buys. We found 5 points that make it worth a closer look and 0 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.