Director dealings in Nigerian stocks: accessing Form 3 insider data via API
How to access NGX director dealings, Form 3 disclosures, and insider trade signals for Nigerian stocks via the Mansa API insider-trades endpoint.
When a director or major shareholder of a Nigerian listed company buys or sells shares, they must disclose it to the NGX. These director dealings — the Nigerian equivalent of Form 3/4 insider filings — are a powerful signal. The Mansa API parses these disclosures and exposes them as structured data, the only API offering this for African markets.
The insider-trades endpoint
curl "https://mansaapi.com/api/v1/markets/exchanges/NGX/insider-trades?days=30" \
-H "Authorization: Bearer YOUR_API_KEY"{
"success": true,
"count": 12,
"data": [
{
"symbol": "GTCO",
"company": "Guaranty Trust Holding Company",
"insider_name": "Segun Agbaje",
"role": "Group CEO",
"transaction_type": "buy",
"volume": 500000,
"price": 42.50,
"total_value": 21250000,
"dealing_date": "2026-05-15"
}
],
"stats": {
"week_net_flow": 45000000,
"week_total_buys": 60000000,
"week_total_sells": 15000000
}
}Filtering
?symbol=GTCO Filter to one stock
?side=buy Only buys (or "sell")
?days=30 Lookback window
?limit=100 Max records (up to 500)Node.js — track insider buying in a stock
import { MansaAPI } from "mansaapi";
const mansa = new MansaAPI({ apiKey: "mansa_live_sk_..." });
const insider = await mansa.markets.getInsiderTrades("NGX", {
symbol: "GTCO",
side: "buy",
days: 90,
});
console.log(`${insider.count} insider buys in 90 days`);
console.log(`Net flow this week: ₦${insider.stats.week_net_flow.toLocaleString()}`);Why insider data matters
Insider buying is one of the few signals where the actor has both information and capital at risk. A cluster of director purchases often precedes positive news; heavy insider selling can be an early warning. Aggregated net-flow stats let you screen the whole market for unusual insider activity in one call.
What you can build
Insider-activity dashboards, smart-money screeners, alert systems for director dealings in stocks you hold, and research tools that surface unusual insider flow. This is premium institutional-grade data at a developer-friendly price.
See the pricing page for Pro tier details, or the markets docs for the full endpoint reference.