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The company

Gerdau S.A.

GGB · NYSE

MaterialsSteel & Metals ProcessingLeading

GGB stood above a rising 150-day average in 48 of the last 52 weekly readings, including each of the last 15 weeks. It is 10.6% above that average now. Steel & Metals Processing: 22% of its 41 stocks in an uptrend (−5 points in four weeks); Materials: 18% (−6 points in four weeks).

SEC filings

Statistics

Rotation: Leading
Weeks in an uptrend: 15 in a row
Industry in uptrend: 22% -5 in 4 wk
Insider buys, 12 months: $1.6M
Insider sales, 12 months: $12.3M
Officials’ trades on record: 0
Institutions holding: 201 (+17)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 48 of 52 weeks.

17 Apr – 16 Oct

Steel & Metals Processing: A minority of its stocks are in an uptrend and the share has been slipping. Materials: Few of its stocks are in an uptrend and the share has been slipping.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

No member of Congress or official has disclosed a trade in it.

Insiders

Buy orders, 12 months1

Sale orders, 12 months27

Buyers · sellers1 · 12

Who	Did	Shares	Traded
Claudio JohannpeterOther	sold	85,607at $4.94	23 Sep 2026filed 25 Sep 2026
Rafael Gamboa LopesOther	sold	51,800at $5.09	17 Sep 2026filed 21 Sep 2026
Andre Bier Gerdau JohannpeterOther	sold	99,200at $4.94	10 Aug 2026filed 12 Aug 2026
Rafael Dorneles JapurOther	sold	10,000at $5.10	6 Aug 2026filed 10 Aug 2026
Cunha Gustavo Werneck DaCEO and Board Member	bought	165,224at $4.73	12 Jun 2026filed 15 Jun 2026
Marcos Zilles MattielloOther	sold	10,387.111at $5.11	8 Jun 2026filed 14 Aug 2026
Chia Yuan WangOther	sold	30,935at $4.49	2 Jun 2026filed 3 Jun 2026
Mauricio MetzOther	sold	7,000at $4.85	2 Jun 2026filed 3 Jun 2026
Mauricio MetzOther	sold	5,000at $4.70	26 May 2026filed 28 May 2026
Rafael Dorneles JapurOther	sold	5,000at $4.75	22 May 2026filed 26 May 2026
Cesar Obino Da Rosa PeresOfficer	sold	8,000at $4.60	19 May 2026filed 22 May 2026
Mauricio MetzOther	sold	5,000at $4.85	13 May 2026filed 15 May 2026

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders201+17 on the quarter

New · exited45 · 29

Reported value$1.3B

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
Capital World Investorsreduced · filed 12 Aug 2026	26,902,473$108.7M	-627,833−2.3%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLCadded · filed 13 Aug 2026	25,745,217$104.0M	+23,936,662+1323.5%
CONTRARIAN CAPITAL MANAGEMENT, L.L.C.unchanged · filed 14 Aug 2026	19,069,112$77.0M	00.0%
BlackRock, Inc.added · filed 7 Aug 2026	18,225,403$73.6M	+7,372,520+67.9%
DONALD SMITH & CO., INC.reduced · filed 11 Aug 2026	17,490,810$70.7M	-6,649,773−27.5%
Aquamarine Financial (Cayman) Ltdunchanged · filed 12 Aug 2026	16,726,171$67.6M	00.0%
TWO SIGMA INVESTMENTS, LPreduced · filed 14 Aug 2026	15,383,237$62.1M	-10,456,483−40.5%
MACKENZIE FINANCIAL CORPadded · filed 13 Aug 2026	14,638,321$59.1M	+6,860,744+88.2%
DIMENSIONAL FUND ADVISORS LPreduced · filed 11 Aug 2026	11,394,004$46.1M	-481,627−4.1%
FMR LLCadded · filed 13 Aug 2026	10,392,607$42.0M	+10,381,651+94757.7%