Worth a closer look
- Open-market purchase with their own money (Form 4 code P), not a grant or option exercise.
- 4 different insiders bought in the last 90 days.
- Similar past buys beat the S&P 500 55% of the time (102 cases), above the 46% for all buys.
- Their past buys: 4 of 7 beat the S&P 500 over 90 days.
Reasons for caution
- Bought by a 10% owner or investment firm, whose reasons often differ from an executive's.
- Small next to what they already own (holding up 0.1%).
What happened after this filing
Insider Twins: past buys with the same traits
2 insiders buying · incl. CEO or CFO · $250K–$1M · stock up over 3 months
QTI Apr 10, 2025 +230.1% vs S&PMBX Oct 21, 2025 +161.4% vs S&PCTEV Mar 10, 2025 +120.8% vs S&PSBET Jun 2, 2025 -77.0% vs S&PGLOO Apr 20, 2026 -64.3% vs S&POLB Jan 19, 2024 -56.6% 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.
Thermopylae Holdings Ltd. (a 10% owner) bought $699K of ABCL at about $11.54 on Nov 12, 2026, reported to the SEC on Nov 12, 2026. Buys like this beat the S&P 500 55% of the time since 2020, against 46% for all insider buys. We found 4 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.