Hyperfine (HYPR) CEO receives 750,000 RSU stock award

Rhea-AI Filing Summary

Hyperfine, Inc. reported that President and CEO Maria Sainz received a grant of 750,000 restricted stock units (RSUs) of Class A common stock at no cash cost. Each RSU converts into one share as it vests, serving as stock-based compensation rather than an open-market purchase.

The RSUs vest 25% on March 23, 2027, with the rest vesting in equal quarterly installments over the following three years, conditioned on her continued service. After this award and recent vesting activity, she directly holds 789,586 shares, including 19,586 shares from a 2021 RSU vesting and 20,000 purchased shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Sainz Maria

Role President and CEO

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	750,000	$0.00	--

Holdings After Transaction: Class A Common Stock — 789,586 shares (Direct)

Footnotes (1)

1. Consist of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of Class A common stock upon vesting. The RSUs vest 25% on March 23, 2027, with the remainder vesting in equal quarterly installments over the following three years, subject to Ms. Sainz's continued service through the applicable vesting date. Consists of 750,000 RSUs granted on March 31, 2026 plus 19,586 shares received on vesting of an RSU award granted on December 23, 2021 and an aggregate of 20,000 purchased shares.

Key Figures

RSU grant size: 750,000 RSUs Grant price: $0.00 per share Initial vesting tranche: 25% of RSUs +4 more

7 metrics

RSU grant size 750,000 RSUs Granted to CEO Maria Sainz on March 31, 2026

Grant price $0.00 per share RSUs granted as compensation, not purchased

Initial vesting tranche 25% of RSUs Vests on March 23, 2027

Remaining vesting period 3 years Equal quarterly installments after March 23, 2027

Shares held after transaction 789,586 shares CEO direct holdings following RSU grant

Prior RSU vesting shares 19,586 shares From RSU award granted December 23, 2021

Purchased shares 20,000 shares Aggregate purchased shares held by CEO

Key Terms

restricted stock units ("RSUs"), vest, Class A common stock, grant

4 terms

restricted stock units ("RSUs") financial

"Consist of restricted stock units ("RSUs"). Each RSU represents the right to receive one share..."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

vest financial

"The RSUs vest 25% on March 23, 2027, with the remainder vesting in equal quarterly installments..."

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.

Class A common stock financial

"Each RSU represents the right to receive one share of Class A common stock upon vesting."

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

grant financial

"Consists of 750,000 RSUs granted on March 31, 2026 plus 19,586 shares received on vesting..."

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^*

Sainz Maria

(Last) (First) (Middle)

C/O HYPERFINE, INC.

351 NEW WHITFIELD STREET

(Street)

GUILFORD CONNECTICUT 06437

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Hyperfine, Inc. [ HYPR ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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
Class A Common Stock	03/31/2026		A		750,000(1)	A	$0	789,586(2)	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. Consist of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of Class A common stock upon vesting. The RSUs vest 25% on March 23, 2027, with the remainder vesting in equal quarterly installments over the following three years, subject to Ms. Sainz's continued service through the applicable vesting date.

2. Consists of 750,000 RSUs granted on March 31, 2026 plus 19,586 shares received on vesting of an RSU award granted on December 23, 2021 and an aggregate of 20,000 purchased shares.

	/s/ Brett Hale, Attorney-in-Fact	04/01/2026
	** 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 did Hyperfine (HYPR) disclose about its CEO’s latest equity grant?

Hyperfine disclosed that President and CEO Maria Sainz received 750,000 restricted stock units of Class A common stock. These RSUs are stock-based compensation, granted at no cash cost, and will convert into shares only as they vest over several years, aligning her interests with shareholders.

How do the new RSUs for Hyperfine (HYPR) CEO Maria Sainz vest?

The RSUs granted to Maria Sainz vest 25% on March 23, 2027. The remaining 75% vest in equal quarterly installments over the following three years, and each vesting tranche requires her continued service through the applicable vesting date to receive the underlying shares.

How many Hyperfine (HYPR) shares does CEO Maria Sainz hold after this Form 4?

After the grant, Maria Sainz directly holds 789,586 shares of Class A common stock. This total includes 750,000 shares underlying the new RSUs, 19,586 shares from a 2021 RSU award that vested, and an aggregate of 20,000 previously purchased shares.

Are the Hyperfine (HYPR) RSUs granted to the CEO an open-market share purchase?

No, the 750,000 RSUs granted to Maria Sainz are not an open-market purchase. They are a stock-based compensation award at a stated price of $0.00 per share, which will convert into Class A common stock only as the RSUs vest over time.

What earlier awards and purchases are included in the Hyperfine (HYPR) CEO’s holdings?

Maria Sainz’s reported 789,586 Hyperfine shares include 19,586 shares received on vesting of an RSU award granted on December 23, 2021. Her position also includes an aggregate of 20,000 purchased shares, alongside the newly granted 750,000 RSUs.