Maravai director awarded 46,293 RSUs for GTCR entity

MIHAS CONSTANTINE S reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

MIHAS CONSTANTINE S reported acquisition or exercise transactions in this Form 4 filing.

Maravai LifeSciences Holdings, Inc. director Constantine S. Mihas reported receiving a grant of 46,293 restricted stock units tied to Class A common stock at no cost on May 26, 2026. The award was made under the company’s 2020 Omnibus Incentive Plan and vests in full on the earlier of one year from grant or the 2027 annual stockholders’ meeting.

According to the disclosure, Mihas holds these securities for the benefit of a GTCR‑affiliated entity under its policies and disclaims any pecuniary interest or beneficial ownership for Section 16 purposes. Following this award, 184,348 shares or units are reported as held on behalf of the GTCR‑affiliated entity.

Insider Trade Summary

Grant/Award: 46,293 shares

Grant/Award 1 txn

Insider MIHAS CONSTANTINE S

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	46,293	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 184,348 shares (Direct)

Footnotes (2)

1. F1. Represents restricted stock units awarded under the Maravai LifeSciences Holdings, Inc. 2020 Omnibus Incentive Plan on May 26, 2026, which vest in full upon the earlier of one year from the date of grant or the date of the 2027 Maravai LifeSciences Holdings, Inc. annual meeting of stockholders.
2. F2. The Reporting Person holds these securities of the Issuer for the benefit of a GTCR-affiliated entity. Pursuant to the policies of the GTCR-affiliated entities, the Reporting Person must hold the securities on behalf of and for the benefit of the GTCR-affiliated entity. The Reporting Person disclaims any pecuniary interest in the securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the securities for purposes of Section 16.

Key Figures

RSUs granted: 46,293 restricted stock units Post-transaction holdings: 184,348 shares/units Vesting condition: Earlier of 1 year or 2027 annual meeting

3 metrics

RSUs granted 46,293 restricted stock units Award of Class A Common Stock units on May 26, 2026

Post-transaction holdings 184,348 shares/units Total Class A position reported after the grant

Vesting condition Earlier of 1 year or 2027 annual meeting Full vesting schedule for the 46,293 RSUs

Key Terms

restricted stock units, 2020 Omnibus Incentive Plan, pecuniary interest, beneficial owner, +1 more

5 terms

restricted stock units financial

"Represents restricted stock units awarded under the Maravai LifeSciences Holdings, Inc. 2020 Omnibus Incentive Plan"

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.

2020 Omnibus Incentive Plan financial

"awarded under the Maravai LifeSciences Holdings, Inc. 2020 Omnibus Incentive Plan on May 26, 2026"

pecuniary interest financial

"The Reporting Person disclaims any pecuniary interest in the securities"

beneficial owner financial

"shall not be deemed an admission that the Reporting Person is the beneficial owner of the securities"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

Section 16 regulatory

"beneficial owner of the securities for purposes of Section 16"

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

FAQ

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

What insider transaction did Maravai LifeSciences (MRVI) report for Constantine Mihas?

Maravai LifeSciences reported that director Constantine S. Mihas received 46,293 restricted stock units of Class A common stock at no cost as an equity award. The grant is compensation-related, not an open-market trade, and was made under the company’s 2020 Omnibus Incentive Plan.

When do Constantine Mihas’s 46,293 Maravai (MRVI) restricted stock units vest?

The 46,293 restricted stock units vest in full on the earlier of one year from the May 26, 2026 grant date or the date of Maravai LifeSciences’ 2027 annual meeting of stockholders. This single-vesting schedule links the award to continued board service or that meeting date.

Does Constantine Mihas personally benefit economically from these Maravai (MRVI) shares?

The filing states Mihas holds the securities for the benefit of a GTCR-affiliated entity under its policies and disclaims any pecuniary interest. It also says the report should not be deemed an admission that he is the beneficial owner for Section 16 purposes.

How many Maravai (MRVI) shares are reported after Constantine Mihas’s latest grant?

After the grant of 46,293 restricted stock units, the filing reports 184,348 shares or units of Maravai LifeSciences Class A common stock held for the benefit of the GTCR-affiliated entity. This figure reflects the total position reported following the transaction.

Was Constantine Mihas’s Maravai (MRVI) equity grant an open-market purchase or sale?

The transaction is coded as a grant or award with zero price per share, indicating a compensation-related acquisition, not an open-market buy or sell. It represents restricted stock units awarded under the company’s 2020 Omnibus Incentive Plan rather than trading in the market.

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

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Accepted by SEC EDGAR 05/28/2026 - 06:26 PM 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^*

MIHAS CONSTANTINE S

(Last) (First) (Middle)

C/O GTCR, LLC

300 N. LASALLE SUITE 5600

(Street)

CHICAGO ILLINOIS 60654

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MARAVAI LIFESCIENCES HOLDINGS, INC. [ MRVI ]

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)
05/26/2026

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	05/26/2026		A		46,293(1)	A	$0	184,348(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. Represents restricted stock units awarded under the Maravai LifeSciences Holdings, Inc. 2020 Omnibus Incentive Plan on May 26, 2026, which vest in full upon the earlier of one year from the date of grant or the date of the 2027 Maravai LifeSciences Holdings, Inc. annual meeting of stockholders.

2. The Reporting Person holds these securities of the Issuer for the benefit of a GTCR-affiliated entity. Pursuant to the policies of the GTCR-affiliated entities, the Reporting Person must hold the securities on behalf of and for the benefit of the GTCR-affiliated entity. The Reporting Person disclaims any pecuniary interest in the securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the securities for purposes of Section 16.

Remarks:

	/s/ Kurt Oreshack, by power of attorney for Constantine Mihas	05/28/2026
	** 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)