Sandra Niewiem

CIK: 0001797804

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)4 (50.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

OEC

Orion S.A.

Officer

Discretionary Trading P&L

Holdings

Transaction History (8 total)

OEC
Orion S.A.
Apr 29, 2026
Award(A)
Direct
24.1K shares-
OEC
Orion S.A.
Feb 19, 2026
Tax Payment(F)
Direct
2.7K shares at avg. $6.27$17K
OEC
Orion S.A.
Feb 19, 2026
Award(A)
Direct
6K shares-
OEC
Orion S.A.
Feb 19, 2026
Tax Payment(F)
Direct
2.8K shares at avg. $6.27$18K
OEC
Orion S.A.
May 5, 2025
Award(A)
Direct
7.1K shares-
OEC
Orion S.A.
Feb 20, 2025
Tax Payment(F)
Direct
2.9K shares at avg. $15.15$44K
OEC
Orion S.A.
Feb 20, 2025
Award(A)
Direct
6.8K shares-
OEC
Orion S.A.
Feb 20, 2025
Tax Payment(F)
Direct
3.2K shares at avg. $15.15$49K

		Type	Shares	Price		Ownership
Apr 29, 2026	OEC Orion S.A.	Award(A)	24,087	-	$0	Direct
Feb 19, 2026	OEC Orion S.A.	Tax Payment(F)	2,662	$6.27	$16,691	Direct
Feb 19, 2026	OEC Orion S.A.	Award(A)	5,952	-	$0	Direct
Feb 19, 2026	OEC Orion S.A.	Tax Payment(F)	2,827	$6.27	$17,725	Direct
May 5, 2025	OEC Orion S.A.	Award(A)	7,098	-	-	Direct
Feb 20, 2025	OEC Orion S.A.	Tax Payment(F)	2,893	$15.15	$43,829	Direct
Feb 20, 2025	OEC Orion S.A.	Award(A)	6,766	-	-	Direct
Feb 20, 2025	OEC Orion S.A.	Tax Payment(F)	3,213	$15.15	$48,677	Direct

1-8 of 8 transactions

About Niewiem Sandra

Niewiem Sandra (SEC CIK 0001797804) files insider reports with the SEC as Sr. VP Global Specialties of Orion S.A. (OEC).

Signal8 holds 4 ownership filings by Niewiem Sandra, all Form 4s, filed between Feb 24, 2025 and May 1, 2026. Those filings report 8 transactions, from Feb 20, 2025 to Apr 29, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Niewiem Sandra's filings is in SPRING, TX.

Recent filings by Niewiem Sandra

Apr 29, 2026: Grant or award of OEC shares (Form 4, code A).
Feb 19, 2026: Tax withholding of OEC shares (Form 4, code F).
Feb 19, 2026: Grant or award of OEC shares (Form 4, code A).
Feb 19, 2026: Tax withholding of OEC shares (Form 4, code F).
May 5, 2025: Grant or award of OEC shares (Form 4, code A).

Other insiders filing for Orion S.A. (OEC)

Riveros Pedro, Sr. VP Global Rubber
Quinones Carlos, Sr. VP Global Operations
Puckett Jonathan A., Chief Financial Officer
Painter Corning F., Chief Executive Officer
Hoogerbrugge Jacqueline, Director
Wurth Michel, Director

How to read Form 4 transaction codes