αTheAlphaInsider

Keller Stephen

Outside the top-25 by R-coefficient, but with purchase history.

R-coefficient
skill with Bayesian shrinkage
60d win rate
% of purchases with positive return
Avg 60d return
after their purchases

🧱 Conviction tranches

Repeated purchases of the same stock within ≤5 days — an accumulation pattern.

TickerDateTradesSpanSharesAmount
CODI2026-08-1211d10.000$120K
CODI2026-04-0611d30.000$258K
CODI2025-03-0311d1500$33K
CODI2024-09-1911d5000$108K
CODI2024-09-1211d5000$102K
NVST2023-11-0611d2000$43K

Purchase history

Later sales by the same insider on the same ticker — realized gain vs average buy price. Empty = position still held.

DateTickerRoleSharesAvg priceAmountSalesAvg sell priceGain %
2026-08-12CODIUnknown10.000$12.01$120K
2026-04-06CODIUnknown30.000$8.61$258K0
2025-03-03CODIUnknown1500$22.00$33K
2024-09-19CODIUnknown5000$21.63$108K
2024-09-12CODIUnknown5000$20.40$102K
2023-11-06NVSTOfficer(Principal Financial Officer)2000$21.53$43K