Johannpeter Claudio
Vice-Chairman of Board
SaleAlert
- Shares
- 85,607
- Price
- $4.94
- Value
- $422,899
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•50 filings
GGB
GERDAU S.A.
Net sales of $1.2M over the last 3 months
4 sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found 1 CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
−$1,227,609
0 buyers · 4 sellers
12-month purchases
$781,510
1 distinct insiders
12-month sales
$5,863,610
12 distinct insiders
Highlighted alerts
27
0 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
1 executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
29
Raw transactions
Everything returned by the filing
27
Voluntary view
P/S trades after deterministic checks
2
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- A
- Shares
- 107,749
- Price
- $3.75
- Footnotes
- 2
The price is denominated in Brazilian reais and has been translated into U.S. dollars at the April 9, 2026 selling rate of R$5.0821 per US$1.00, as reported by the Central Bank of Brazil. Reflects 107,749 additional restricted stock units granted pursuant to an amendment to the reporting person long term incentive plan agreement executed on July 15, 2026, representing the difference between the 179,581 shares attributable to the plan following the amendment and the 71,832 shares previously reported.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Lopes Rafael Gamboa
Executive Vice President
SaleAlert
- Shares
- 51,800
- Price
- $5.09
- Value
- $263,662
Johannpeter Andre Bier Gerdau
Chairman of Board of Directors
SaleAlert
- Shares
- 99,200
- Price
- $4.94
- Value
- $490,048
Japur Rafael Dorneles
VP, CFO and IR Officer
SaleAlert
- Shares
- 10,000
- Price
- $5.10
- Value
- $51,000
Da Cunha Gustavo Werneck
CEO and Board Member
PurchaseAlert
- Shares
- 165,224
- Price
- $4.73
- Value
- $781,510
Mattiello Marcos Zilles
Senior Management
SaleAlert
- Shares
- 10,387.11
- Price
- $5.11
- Value
- $53,078
Metz Mauricio
Executive Vice President
SaleAlert
- Shares
- 7,000
- Price
- $4.85
- Value
- $33,950
Wang Chia Yuan
Senior Management
SaleAlert
- Shares
- 30,935
- Price
- $4.49
- Value
- $138,898
Metz Mauricio
Executive Vice President
SaleAlert
- Shares
- 5,000
- Price
- $4.70
- Value
- $23,500
Japur Rafael Dorneles
VP, CFO and IR Officer
SaleAlert
- Shares
- 5,000
- Price
- $4.75
- Value
- $23,750
Peres Cesar Obino da Rosa
Officer
SaleAlert
- Shares
- 8,000
- Price
- $4.60
- Value
- $36,800
Metz Mauricio
Executive Vice President
SaleAlert
- Shares
- 5,000
- Price
- $4.85
- Value
- $24,250
Da Cunha Gustavo Werneck
CEO and Board Member
SaleAlert
- Shares
- 432,854
- Price
- $4.87
- Value
- $2,107,999
Metz Mauricio
Executive Vice President
SaleAlert
- Shares
- 2,000
- Price
- $4.69
- Value
- $9,380
Wang Chia Yuan
Senior management
SaleAlert
- Shares
- 40,000
- Price
- $4.75
- Value
- $190,000
Wang Chia Yuan
Senior management
SaleAlert
- Shares
- 20,000
- Price
- $4.54
- Value
- $90,800
Da Cunha Gustavo Werneck
CEO and Board Member
SaleAlert
- Shares
- 88,000
- Price
- $4.50
- Value
- $396,000
Metz Mauricio
Executive Vice President
SaleAlert
- Shares
- 1,000
- Price
- $4.53
- Value
- $4,530
Wang Chia Yuan
Senior Management
SaleAlert
- Shares
- 76,700
- Price
- $4.49
- Value
- $344,383
Uhlein Clemir
Senior Management
SaleAlert
- Shares
- 38,276
- Price
- $4.51
- Value
- $172,625
Metz Mauricio
Executive Vice President
SaleAlert
- Shares
- 1,000
- Price
- $4.24
- Value
- $4,240
Wang Chia Yuan
Senior Management
SaleAlert
- Shares
- 25,000
- Price
- $4.21
- Value
- $105,250
Da Cunha Gustavo Werneck
CEO and Board Member
SaleAlert
- Shares
- 50,000
- Price
- $4.16
- Value
- $208,000
Wahrhaftig Marcos Eduardo Faraco
Executive Vice President
SaleAlert
- Shares
- 12,419
- Price
- $4.06
- Value
- $50,421
Da Cunha Gustavo Werneck
CEO and Board Member
SaleAlert
- Shares
- 50,000
- Price
- $4.01
- Value
- $200,500
Wang Chia Yuan
Senior management
SaleAlert
- Shares
- 34,000
- Price
- $4.00
- Value
- $136,000
Johannpeter Guilherme Chagas Gerdau
Vice-Chairman of Board
SaleAlert
- Shares
- 85,607
- Price
- $3.29
- Value
- $281,647
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Sep 23, 2026 | Johannpeter Claudio Vice-Chairman of Board | Sale | 85,607 | $4.94 | $422,899 | |
| Sep 17, 2026 | Lopes Rafael Gamboa Executive Vice President | Sale | 51,800 | $5.09 | $263,662 | |
| Aug 10, 2026 | Johannpeter Andre Bier Gerdau Chairman of Board of Directors | Sale | 99,200 | $4.94 | $490,048 | |
| Aug 06, 2026 | Japur Rafael Dorneles VP, CFO and IR Officer | Sale | 10,000 | $5.10 | $51,000 | |
| Jun 12, 2026 | Da Cunha Gustavo Werneck CEO and Board Member | Purchase | 165,224 | $4.73 | $781,510 | |
| Jun 08, 2026 | Mattiello Marcos Zilles Senior Management | Sale | 10,387.11 | $5.11 | $53,078 | |
| Jun 02, 2026 | Metz Mauricio Executive Vice President | Sale | 7,000 | $4.85 | $33,950 | |
| Jun 02, 2026 | Wang Chia Yuan Senior Management | Sale | 30,935 | $4.49 | $138,898 | |
| May 26, 2026 | Metz Mauricio Executive Vice President | Sale | 5,000 | $4.70 | $23,500 | |
| May 22, 2026 | Japur Rafael Dorneles VP, CFO and IR Officer | Sale | 5,000 | $4.75 | $23,750 | |
| May 19, 2026 | Peres Cesar Obino da Rosa Officer | Sale | 8,000 | $4.60 | $36,800 | |
| May 13, 2026 | Metz Mauricio Executive Vice President | Sale | 5,000 | $4.85 | $24,250 | |
| May 08, 2026 | Da Cunha Gustavo Werneck CEO and Board Member | Sale | 432,854 | $4.87 | $2,107,999 | |
| May 05, 2026 | Metz Mauricio Executive Vice President | Sale | 2,000 | $4.69 | $9,380 | |
| May 05, 2026 | Wang Chia Yuan Senior management | Sale | 40,000 | $4.75 | $190,000 | |
| Apr 30, 2026 | Wang Chia Yuan Senior management | Sale | 20,000 | $4.54 | $90,800 | |
| Apr 28, 2026 | Da Cunha Gustavo Werneck CEO and Board Member | Sale | 88,000 | $4.50 | $396,000 | |
| Apr 28, 2026 | Metz Mauricio Executive Vice President | Sale | 1,000 | $4.53 | $4,530 | |
| Apr 28, 2026 | Wang Chia Yuan Senior Management | Sale | 76,700 | $4.49 | $344,383 | |
| Apr 28, 2026 | Uhlein Clemir Senior Management | Sale | 38,276 | $4.51 | $172,625 | |
| Apr 10, 2026 | Metz Mauricio Executive Vice President | Sale | 1,000 | $4.24 | $4,240 | |
| Apr 10, 2026 | Wang Chia Yuan Senior Management | Sale | 25,000 | $4.21 | $105,250 | |
| Apr 09, 2026 | Da Cunha Gustavo Werneck CEO and Board Member | Sale | 50,000 | $4.16 | $208,000 | |
| Apr 09, 2026 | Wahrhaftig Marcos Eduardo Faraco Executive Vice President | Sale | 12,419 | $4.06 | $50,421 | |
| Apr 08, 2026 | Da Cunha Gustavo Werneck CEO and Board Member | Sale | 50,000 | $4.01 | $200,500 | |
| Apr 08, 2026 | Wang Chia Yuan Senior management | Sale | 34,000 | $4.00 | $136,000 | |
| Mar 20, 2026 | Johannpeter Guilherme Chagas Gerdau Vice-Chairman of Board | Sale | 85,607 | $3.29 | $281,647 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.