DOSSIER · 13F Holders · Q1 2026
GGB

GERDAU SA

207 institutions still hold GERDAU SA as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 373737105·207 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$882M
visible holders
Holders
207
filers reporting
Concentration
11.27%
Capital World Investors #1
top holder share
AI Holders Summary · Q1 2026

207 institutions reported GGB in Q1 2026. Capital World Investors leads at 11.3% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Capital World Investors
CIK 0001422849
$99M27.5M0.01%Q1 2026
02
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$93M25.8M0.08%Q1 2026
03
DONALD SMITH & CO., INC.
CIK 0000814375
$87M24.1M1.57%Q1 2026
04
CONTRARIAN CAPITAL MANAGEMENT, L.L.C.
CIK 0001050417
$70M19.1M18.53%Q4 2025
05
Aquamarine Financial (Cayman) Ltd
CIK 0002104187
$60M16.7M4.42%Q1 2026
06
BANK OF AMERICA CORP /DE/
CIK 0000070858
$48M13.2M0.00%Q1 2026
07
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$47M13.0M0.07%Q1 2026
08
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$43M11.9M0.01%Q1 2026
09
GOLDMAN SACHS GROUP INC
CIK 0000886982
$40M11.0M0.00%Q1 2026
10
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$39M10.9M0.06%Q1 2026
11
BlackRock, Inc.
CIK 0002012383
$39M10.9M0.00%Q1 2026
12
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$29M8.0M0.00%Q1 2026
13
MACKENZIE FINANCIAL CORP
CIK 0000919859
$28M7.8M0.03%Q1 2026
14
MORGAN STANLEY
CIK 0000895421
$27M7.5M0.00%Q1 2026
15
CAUSEWAY CAPITAL MANAGEMENT LLC
CIK 0001165797
$25M6.8M0.30%Q1 2026
16
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$24M6.6M0.01%Q1 2026
17
CITADEL ADVISORS LLC
CIK 0001423053
$22M6.1M0.00%Q4 2025
18
Itau Unibanco Holding S.A.
CIK 0001132597
$22M6.2M0.51%Q1 2026
19
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$22M5.4M0.01%Q2 2026
20
Assenagon Asset Management S.A.
CIK 0001546007· Quasi-passive
$16M4.0M0.02%Q2 2026
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Insiders at GERDAU SA
Da Cunha Gustavo WerneckWang Chia YuanPeres Cesar Obino Da RosaMetz MauricioUhlein ClemirWahrhaftig Marcos Eduardo FaracoJohannpeter Guilherme Chagas Gerdau