Orion S.A. (OEC) SVP receives 24,087 RSU stock award, total 51,467 shares

Rhea-AI Filing Summary

Niewiem Sandra reported acquisition or exercise transactions in this Form 4 filing.

Orion S.A. senior vice president Sandra Niewiem received a grant of 24,087 restricted stock units (RSUs) of common shares on April 29, 2026. The RSUs will vest in three equal installments on January 1 of 2027, 2028 and 2029. Following this compensation-related grant, she now directly holds 51,467 common shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Niewiem Sandra

Role Sr. VP Global Specialties

Type	Security	Shares	Price	Value
Grant/Award	Common Shares, no par value	24,087	$0.00	--

Holdings After Transaction: Common Shares, no par value — 51,467 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSUs granted: 24,087 units Post-transaction holdings: 51,467 shares Grant price: $0.0000 per share +2 more

5 metrics

RSUs granted 24,087 units Restricted stock units granted on April 29, 2026

Post-transaction holdings 51,467 shares Common shares directly held after grant

Grant price $0.0000 per share Reported transaction price per share for RSU award

Vesting start January 1, 2027 First vesting date for RSUs

Vesting end January 1, 2029 Final vesting date for RSUs

Key Terms

Restricted stock units, Grant, award, or other acquisition, Vesting

3 terms

Restricted stock units financial

"RSUs granted to the reporting person on April 29, 2026."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

Vesting financial

"Granted RSUs will vest ratably on January 1st for calendar years 2027, 2028 and 2029."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Niewiem Sandra

(Last) (First) (Middle)

C/O ORION S.A.

1700 CITY PLAZA DRIVE, SUITE 300

(Street)

SPRING TEXAS 77389

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Orion S.A. [ OEC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Sr. VP Global Specialties

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/29/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Shares, no par value	04/29/2026		A		24,087(1)	A	$0	51,467	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. RSUs granted to the reporting person on April 29, 2026. Granted RSUs will vest ratably on January 1st for calendar years 2027, 2028 and 2029.

	/s/ Sandra Niewiem	05/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Orion S.A. (OEC) report for Sandra Niewiem?

Orion S.A. reported that senior vice president Sandra Niewiem received a grant of 24,087 restricted stock units. These RSUs are a share-based compensation award, not an open-market purchase, and increase her direct holdings in the company’s common shares.

How many Orion S.A. (OEC) shares does Sandra Niewiem hold after this Form 4?

After the RSU grant, Sandra Niewiem directly holds 51,467 Orion S.A. common shares. This figure includes the newly granted restricted stock units, which will vest over time based on the schedule disclosed in the filing footnote.

What are the vesting terms of Sandra Niewiem’s new Orion S.A. RSUs?

The 24,087 RSUs granted to Sandra Niewiem vest ratably on January 1 for calendar years 2027, 2028 and 2029. This means one-third of the units becomes deliverable as shares at the start of each of those three years.

Was cash paid for the Orion S.A. RSU grant reported on this Form 4?

No cash was paid for the RSU grant; the transaction price per share is reported as 0.0000. The award represents stock-based compensation granted by Orion S.A., rather than an open-market transaction funded by the insider.

Is Sandra Niewiem’s Orion S.A. RSU award an open-market buy or a compensation grant?

The Form 4 classifies the transaction as a grant or award acquisition, not an open-market buy. The restricted stock units were granted as compensation, with a transaction code A and zero purchase price per share reported in the filing.