10b5-1 plan sale
Discretionary open-market sale
Why a 10b5-1 plan sale carries low information content versus a discretionary sale
Toggle between a 10b5-1 plan path (sealed conduit from adoption to automatic broker execution, low information content) and a discretionary path where current MNPI modulates the sale timing (high information content).
10b5-1 plan path
discretionary path
time
1. Adopt 10b5-1 plan
certify no MNPI
2. plan instructions
count · price · dates fixed
3. sealed time pipe
intervening events
flow past —
insider cannot
alter plan
(earnings, news)
deflected
earnings
4. broker executes
automatic · per plan
5. low information content
sale cannot signal view
current MNPI
insider holds it now
reacts to
insider chooses timing
discretionary decision
broker executes
open-market order
high information content
sale signals near-term view
active flow
dormant / deflected
threshold / gate
10b5-1 plan sale. The sale is executed by the broker per fixed instructions adopted when the insider had no MNPI; the timing carries no signal about near-term prospects.