CIG at a glance
Energy Co of Minas Gerais (CIG, SEC CIK 1157557) filed Form 4 insider filings as recently as May 5, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- As of June 30, 2026, 27 institutional investment managers tracked by SignalX reported holding Energy Co of Minas Gerais (CIG) shares worth $176.6 million in 13F-HR filings.
- The most recent insider open-market sale reported on Form 4 was by Ferreira de Souza Aloisio Macario on April 6, 2026 of 1,550 shares at $2.49 per share.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Insiders · 90 days
- 0 buys · 0 sells
- No open-market trades
- 13F holders
- 27 funds
- $176.6M · +1 vs prior quarter
SignalX for CIG
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Ferreira de Souza Aloisio Macario | Sell | Apr 6, 2026 | 1,550 | $2.49 |
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate CIG share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 27 | $176.6M |
| Q1 2026 | 26 | $192.8M |
| Q4 2025 | 26 | $180.9M |
| Q3 2025 | 27 | $177.8M |
| Q2 2025 | 28 | $176.2M |
| Q1 2025 | 24 | $120.1M |
| Q4 2024 | 20 | $76.4M |
| Q3 2024 | 18 | $55.9M |
- Goldman Sachs Group+3.98M (+50%)
- State Street Corp+2.01M (+14%)
- BlackRock+1.81M (+9%)
- Morgan Stanley+983.8K (+24%)
- Citadel Advisors LLC+459.0K (+49%)
- Renaissance Technologies LLC−2.54M (-32%)
- Millennium Management−1.26M (-88%)
- Bank of America Corp−1.26M (-80%)
- D.E. Shaw & Co−410.7K (-56%)
- Two Sigma Investments−332.7K (-63%)
Source: 13F-HR filings on SEC EDGAR (aggregated from 196 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
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CIG SEC filings: frequently asked questions
Which institutions hold CIG stock?
As of June 30, 2026, the largest Energy Co of Minas Gerais (CIG) holders among the 13F filers tracked by SignalX were BlackRock ($47.9 million), State Street Corp ($38.2 million), Goldman Sachs Group ($25.2 million), Vanguard Capital Management LLC ($22.1 million), Renaissance Technologies LLC ($11.4 million). 13F-HR reports are filed up to 45 days after each quarter ends.
What are the latest CIG SEC filings?
Energy Co of Minas Gerais (CIG) filed a Form 4 insider filing on May 5, 2026.
What is CIG's SEC CIK number?
Energy Co of Minas Gerais (CIG)'s SEC Central Index Key (CIK) is 1157557. EDGAR lists every CIG filing under that number.
Ask anything about CIG
The research agent reads CIG's filings, financials, insider trades and 13F holders, then answers with sources.