EverSpin director granted 3,852 RSUs

RIBAR GEOFFREY G reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

RIBAR GEOFFREY G reported acquisition or exercise transactions in this Form 4 filing.

EVERSPIN TECHNOLOGIES INC. director Geoffrey G. Ribar received an equity award in the form of restricted stock units. On May 21, 2026, he was granted 3,852 shares of common stock at no cash cost as a compensation-related award. These units vest in 12 equal monthly installments over one year starting May 21, 2026, meaning the shares will be delivered gradually as the service condition is met. Following this grant, Ribar directly holds 97,915 shares of EverSpin common stock.

Insider Trade Summary

Grant/Award: 3,852 shares

Grant/Award 1 txn

Insider RIBAR GEOFFREY G

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,852	$0.00	$0.00

Holdings After Transaction: Common Stock — 97,915 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units granted on May 21, 2026, which vest in 12 equal monthly installments over one year with a vesting commencing date of May 21, 2026.

Key Figures

RSU grant: 3,852 shares Grant price: $0.0000 per share Post-transaction holdings: 97,915 shares +1 more

4 metrics

RSU grant 3,852 shares Restricted stock units granted May 21, 2026

Grant price $0.0000 per share Compensation award, not market purchase

Post-transaction holdings 97,915 shares Shares directly held after the grant

Vesting schedule 12 monthly installments Vesting over one year from May 21, 2026

Key Terms

restricted stock units, vesting, Grant, award, or other acquisition, Form 4

4 terms

restricted stock units financial

"Represents restricted stock units granted on May 21, 2026, which vest in 12 equal monthly installments"

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.

vesting financial

"which vest in 12 equal monthly installments over one year with a vesting commencing date of May 21, 2026"

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.

Grant, award, or other acquisition financial

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

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did EVERSPIN TECHNOLOGIES (MRAM) report for Geoffrey G. Ribar?

EVERSPIN TECHNOLOGIES reported that director Geoffrey G. Ribar received a grant of 3,852 restricted stock units of common stock. The award is a compensation-related acquisition at no cash cost, reflected as a Form 4 transaction coded as a grant or award acquisition.

When do Geoffrey G. Ribar’s new MRAM restricted stock units vest?

Ribar’s 3,852 restricted stock units vest in 12 equal monthly installments over one year, starting May 21, 2026. Each month, one-twelfth of the units becomes vested, gradually delivering shares as long as the service-based vesting condition continues to be met.

How many EVERSPIN TECHNOLOGIES (MRAM) shares does Geoffrey G. Ribar hold after this Form 4 grant?

After the grant, Geoffrey G. Ribar directly holds 97,915 shares of EVERSPIN TECHNOLOGIES common stock. This total includes the impact of the 3,852-share restricted stock unit award reported in the Form 4, showing his post-transaction ownership position as a company director.

Was Geoffrey G. Ribar’s MRAM equity award a purchase or a grant?

The transaction was a grant, not an open-market purchase. It is coded as a grant or award acquisition at a price of $0.0000 per share, indicating compensation-related restricted stock units rather than shares bought on the open market for cash consideration.

What does the Form 4 code “A” mean in the MRAM filing for Geoffrey G. Ribar?

In this Form 4, the code “A” signifies a grant, award, or other acquisition. It indicates Ribar received 3,852 restricted stock units of EVERSPIN TECHNOLOGIES common stock as compensation, rather than executing a traditional buy or sell transaction in the open market.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/22/2026 - 04:48 PM EDT Learn about SEC filing dates

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^*

RIBAR GEOFFREY G

(Last) (First) (Middle)

C/O EVERSPIN TECHNOLOGIES, INC.

5670 W. CHANDLER BLVD, STE 130

(Street)

CHANDLER ARIZONA 85226

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
EVERSPIN TECHNOLOGIES INC. [ MRAM ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

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 Stock	05/21/2026		A		3,852(1)	A	$0	97,915	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. Represents restricted stock units granted on May 21, 2026, which vest in 12 equal monthly installments over one year with a vesting commencing date of May 21, 2026.

Remarks:

	/s/ Cesare Suardi, Attorney-in-Fact for Geoffrey G. Ribar	05/22/2026
	** 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)