W
WAVEMAN · COMPANY
GGB · Gerdau S.A.
> Ask across nine datasets ⌘K
LIVE
TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475
← ALL COMPANIES

GGB

GERDAU S.A.
MINING & METALS · STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS · CIK 0001073404
C-SUITE BUYING · 1☆ WATCH
INSIDER NET · 180D
-$4.7M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
1
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
117
13F, latest reported quarter
REVENUE GROWTH
-
XBRL, annual
NET MARGIN
-
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$4.7M over 180 days
+$187.4K over 90 days
below 79% of Mining & Metals
CONGRESS
no member of Congress has reported trading it
FUNDS
117 funds added or opened last quarter
more than 57% of Mining & Metals
REVENUE
no revenue reported in any filing
MARGIN
no margin: this company reports no revenue to divide by
BUYBACKS
no share repurchases reported
SHORT
5.1% of shares outstanding short · 2.5 days to cover · settled 2026-07-31
more than 74% of Mining & Metals
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$4.7M across 10 people in 180 days.
117 funds added or opened positions in the latest 13F quarter, of 213 holders.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN +64.5%
+64.5%12M
-1%+22%+45%+68%2025-092025-102025-122026-032026-052026-072026-09 2026-05-08 · Da Cunha Gustavo Werneck sold $2.1M2026-06-12 · Da Cunha Gustavo Werneck bought $781.5K2026-08-10 · Johannpeter Andre Bier Gerdau sold $490.0K2026-04-28 · Da Cunha Gustavo Werneck sold $396.0K2026-04-28 · Wang Chia Yuan sold $344.4K2026-03-20 · Johannpeter Guilherme Chagas Gerdau sold $281.6K2026-03-20 · Johannpeter Guilherme Chagas Gerdau sold $281.6K2026-04-09 · Da Cunha Gustavo Werneck sold $208.0K2026-04-08 · Da Cunha Gustavo Werneck sold $200.5K2026-05-05 · Wang Chia Yuan sold $190.0K2026-04-28 · Uhlein Clemir sold $172.6K2026-06-02 · Wang Chia Yuan sold $138.9K2026-04-08 · Wang Chia Yuan sold $136.0K2026-04-10 · Wang Chia Yuan sold $105.2K2026-04-30 · Wang Chia Yuan sold $90.8K2026-06-08 · Mattiello Marcos Zilles sold $53.1K2026-08-06 · Japur Rafael Dorneles sold $51.0K2026-04-09 · Wahrhaftig Marcos Eduardo Faraco sold $50.4K2026-05-19 · Peres Cesar Obino da Rosa sold $36.8K2026-06-02 · Metz Mauricio sold $34.0K2026-05-13 · Metz Mauricio sold $24.2K2026-05-22 · Japur Rafael Dorneles sold $23.8K2026-05-26 · Metz Mauricio sold $23.5K2026-05-05 · Metz Mauricio sold $9.4K2026-04-28 · Metz Mauricio sold $4.5K
INSIDER BUYINSIDER SELL
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
The complete filing record, in one place.
The record shows a net $4.7M sold by insiders over 180 days, 117 funds added last quarter. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
MPTGNUENEMGLWIEHYMCLCGMFUUUUATICRSLEU
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, GERDAU S.A. insiders sold a net $4.7M of stock across 25 Form 4 purchases and sales, with 1 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER
FILED
SHARES
VALUE
Johannpeter Andre Bier Gerdau
—
SELL
2026-08-10
99,200.0
$490.0K
Japur Rafael Dorneles
—
SELL
2026-08-06
10,000.0
$51.0K
Da Cunha Gustavo Werneck
CEO and Board Member
BUY
2026-06-12
165,224.0
$781.5K
Mattiello Marcos Zilles
—
SELL
2026-06-08
10,387.111
$53.1K
Wang Chia Yuan
—
SELL
2026-06-02
30,935.0
$138.9K
25 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 20 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders
13F · holdings as of the latest quarter funds have reported
Capital World Investors
26,902,473.0 sh
$108.7M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
25,745,217.0 sh
$104.0M
CONTRARIAN CAPITAL MANAGEMENT, L.L.C.
19,069,112.0 sh
$77.0M
BlackRock, Inc.
18,225,403.0 sh
$73.6M
DONALD SMITH & CO., INC.
17,490,810.0 sh
$70.7M
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
FORM 144
No planned-sale notices
No insider has notified an intent to sell. This is the panel to watch after a run-up.
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
OTG Latin America ETF
$626.7K POSITION · AS OF 2026-03-31
2.2%
VanEck Steel ETF
$2.5M POSITION · AS OF 2026-03-31
1.7%
UBS Engage For Impact Fund
$276.8K POSITION · AS OF 2026-03-31
1.1%
ULTRALATIN AMERICA PROFUND
$271.5K POSITION · AS OF 2026-04-30
1.1%
Invesco Zacks Multi-Asset Income ETF
$1.1M POSITION · AS OF 2026-04-30
0.9%
iShares Latin America 40 ETF
$30.4M POSITION · AS OF 2026-03-31
0.7%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-122022-12
GROSS PROFIT$8.0B$9.2B$11.3B$18.8B
NET INCOME$1.4B$4.6B$7.5B$11.5B
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
W WAVEMAN

Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

SEC FORM 4FORM 13F 13D/GFORM 144XBRL STOCK ACTCONTRACTSFEC CFPBNRC
PRODUCT
DeskBacktester CompaniesAccount
SUPPORT
FAQMethodology Contact
LEGAL
TermsPrivacy Accessibility
© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-06 ALL SYSTEMS LIVE FOR MACHINES →