Burst liquidity, and the Form 144 lead-time edge
Selling in two scheduled bursts a year needs a liquid public stock and a reason to care about market windows. You have neither. The nearest private-company analogue — how and when you take money out — is a salary-versus-dividend decision driven by your personal marginal rate and the corporation's tax attributes, and its cadence is set by the tax year, not by the market. Borrowing the shape of Awilhelmsen's calendar would be cargo-culting.
The 144-before-the-4 edge has no Canadian private-company equivalent at all. It is included in §3 only because it is this week's cleanest demonstration of a general habit worth keeping: in any disclosure regime, find out which document is filed when the decision is made rather than when the transaction completes. That one is almost always where the information is, and it is almost always the one nobody reads.