🔁 Same Insider Buying Multiple Times
Repetitive buying is triggered when the same insider places multiple purchase orders within a 14-day window. Serial accumulation — an executive buying on Monday, then again on Wednesday and Friday — signals intentional position-building rather than a single-point transaction.
Live insider transactions with this signal active across 13 European markets.
How it works
While a one-off purchase might reflect routine portfolio rebalancing or a scheduled share plan, repeated buying in a compressed window suggests the insider is actively sizing up a position. The behaviour mirrors how professional investors accumulate stakes: buying incrementally to avoid moving the price. When an executive does this with their own company's stock, it strongly implies a conviction that the shares are undervalued at current levels. Research by Seyhun (1998) found that larger insider purchases — which repetitive buys create in aggregate — carry proportionally stronger predictive power for future returns.
Detection methodology
InsidersAlpha fires the repetitive buying signal when the same individual insider submits two or more distinct buy transactions at the same company within a 14-calendar-day window. Each transaction must be filed separately — a single bulk transaction split across execution dates in a single filing does not typically trigger the signal.
Frequently asked questions
What's the difference between repetitive buying and cluster buying?
Repetitive buying involves one insider making multiple purchases within 14 days. Cluster buying involves two or more different insiders at the same company buying within 14 days. Both can fire simultaneously on the same stock — a scenario where InsidersAlpha assigns especially high conviction.
Why is buying multiple times more meaningful than buying once?
A single purchase can be explained by many factors — routine portfolio allocation, pre-planned trading windows, or hitting a price target. Multiple purchases in a short window, however, suggest the insider is actively accumulating. Each additional buy is an incremental decision to increase exposure, which carries information beyond the first trade.
Does the size of each purchase matter?
Yes. InsidersAlpha's conviction scoring accounts for the aggregate value of all purchases, not just the individual transaction size. A series of small but regular purchases can accumulate to a significant conviction signal if they represent a large percentage of the insider's estimated compensation or existing holding.
How far back does repetitive buying history go?
InsidersAlpha maintains 180 days of transaction history. Pro subscribers can view all repetitive buying signals within this window with full post-trade performance data.
Other insider signals
InsidersAlpha tracks five distinct insider trading signals. They can fire independently or in combination — co-occurrence of multiple signals on the same transaction is associated with higher conviction.
See our methodology page for a full explanation of how all signals are calculated.