Corporate Actions

Handles the full lifecycle of corporate actions from announcement through settlement and reconciliation. You'd reach for this when processing dividends, stock splits, mergers, tender offers, or rights offerings, especially when you need to get record date and ex-date mechanics right under current settlement cycles. Covers both mandatory actions that happen automatically and voluntary elections that need client notification and submission to DTC. The detailed breakdown of entitlement calculation, fractional share handling, and cost basis adjustments makes it useful for building processing systems or debugging why positions didn't update correctly after an event. Solid reference for the workflow from data scrubbing multiple vendor feeds through claims resolution.

skills.sh installs: 693
GitHub stars: 224
last updated: Aug 21, 2026

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Install

$ npx -y skills add joellewis/finance_skills --skill corporate-actions --agent claude-code

Installs into .claude/skills of the current project.

Files

Corporate Actions

Core Concepts

1. Corporate Action Types

Corporate actions are events initiated by a company that affect its securities. They fall into four broad categories based on the level of shareholder participation required.

Mandatory Actions. These occur automatically for all holders of record and require no election. The holder receives the entitlement without taking any action.