WANG CHIA YUAN sold 21.7% of their position (20K shares) of GERDAU S.A. on the open market

Open‑market sale worth $90.8K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

WANG CHIA YUAN

Filed: 5/4/2026ACC: 0002119830-26-000004

InsiderWANG CHIA YUANCIK 2119830

→

IssuerGERDAU S.A.CIK 1073404

Other

Since Mar 2026

-20K

Net shares

Net seller

$90.8K

Total sold

Open market trades

0B · 1S

Total transactions

20K disposed

Non-Derivative Transactions1

Preferred shares

Direct

S · Sale

−20K

Price / share

$4.54

Trade value

$90.80K

% of position

21.7%

4/30/2026

92.19K→72.19K

Total

Net shares

−20K

Net value

-$90.80K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Preferred shares Direct	4/30/2026	S · Sale	−20K	$4.54	$90.80K	21.7%	92.19K	72.19K
Total			−20K		-$90.80K

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)1

Preferred shares

Direct

Shares owned882.00

Total

882.00 direct882.00

Security Title	Shares Owned	Ownership Type
Preferred shares	882.00	Direct
Total	882.00	882.00 direct

Derivative Holdings (Post-Transaction)4

Restricted Stock Units

Direct

Underlying security

Preferred shares

Underlying shares

75.64K

Shares owned

75.64K

Exercise price

4.04

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Preferred shares

Underlying shares

184.49K

Shares owned

184.49K

Exercise price

3.57

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Preferred shares

Underlying shares

102.58K

Shares owned

102.58K

Exercise price

2.83

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Preferred shares

Underlying shares

76.82K

Shares owned

76.82K

Exercise price

3.58

Expiration

—

Exercise window

—

Total

Underlying

439.53K

Owned

439.53K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Restricted Stock Units Direct	Preferred shares	4.04	—	—	75.64K	75.64K
Restricted Stock Units Direct	Preferred shares	3.57	—	—	184.49K	184.49K
Restricted Stock Units Direct	Preferred shares	2.83	—	—	102.58K	102.58K
Restricted Stock Units Direct	Preferred shares	3.58	—	—	76.82K	76.82K
Total					439.53K	439.53K