Everspin director awarded 3,852 RSUs in stock grant

Billerbeck Darin G reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Billerbeck Darin G reported acquisition or exercise transactions in this Form 4 filing.

EVERSPIN TECHNOLOGIES INC. director Darin G. Billerbeck received an equity award of 3,852 shares of Common Stock on May 21, 2026 as a grant of restricted stock units. These units vest in 12 equal monthly installments over one year starting on May 21, 2026, effectively providing monthly share delivery as they vest. Following this award, Billerbeck directly holds 127,925 shares of Common Stock.

Insider Trade Summary

Grant/Award: 3,852 shares

Grant/Award 1 txn

Insider Billerbeck Darin G

Role Director

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

Holdings After Transaction: Common Stock — 127,925 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 size: 3,852 shares Grant price: $0.0000 per share Post-grant holdings: 127,925 shares +1 more

4 metrics

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

Grant price $0.0000 per share Equity award with no purchase price

Post-grant holdings 127,925 shares Total Common Stock held directly after transaction

Vesting installments 12 monthly installments RSUs vest over one year starting May 21, 2026

Key Terms

restricted stock units, vest, Common Stock, Grant, award, or other acquisition

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.

vest financial

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

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

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

FAQ

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

What insider transaction did EVERSPIN TECHNOLOGIES (MRAM) report for Darin G. Billerbeck?

EVERSPIN TECHNOLOGIES reported that director Darin G. Billerbeck received 3,852 shares of Common Stock as a restricted stock unit grant. The award was made on May 21, 2026 and reflects equity-based compensation rather than an open-market stock purchase.

How many EVERSPIN TECHNOLOGIES (MRAM) shares were granted to the director?

The director received a grant of 3,852 restricted stock units representing 3,852 shares of EVERSPIN TECHNOLOGIES Common Stock. These units carry a zero purchase price and convert into shares as they vest over the one-year installment schedule described in the filing footnote.

What is the vesting schedule for the 3,852 EVERSPIN TECHNOLOGIES (MRAM) restricted stock units?

The 3,852 restricted stock units vest in 12 equal monthly installments over one year, beginning on May 21, 2026. Each month, one-twelfth of the units vests and converts into Common Stock, aligning compensation delivery with ongoing board service during that year.

Did Darin G. Billerbeck buy EVERSPIN TECHNOLOGIES (MRAM) shares on the open market?

No, the Form 4 shows an acquisition coded as a grant or award, not an open-market purchase. The 3,852 shares were granted as restricted stock units at a zero price per share, reflecting equity compensation rather than a discretionary stock purchase.

How many EVERSPIN TECHNOLOGIES (MRAM) shares does the director hold after this grant?

After this grant, Darin G. Billerbeck directly holds 127,925 shares of EVERSPIN TECHNOLOGIES Common Stock. This total includes the new 3,852-share restricted stock unit award, which will convert into shares as it vests over the specified one-year period.

What does transaction code "A" mean in the EVERSPIN TECHNOLOGIES (MRAM) Form 4?

Transaction code “A” indicates a grant, award, or other acquisition rather than a market trade. In this case, it represents the issuance of 3,852 restricted stock units to the director as part of his equity compensation package on May 21, 2026.

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

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Accepted by SEC EDGAR 05/22/2026 - 04:35 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^*

Billerbeck Darin 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	127,925	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 Darin G. Billerbeck	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)