Marqeta (MQ) CTO Lukasz Strozek files initial insider Form 3 ownership

Rhea-AI Filing Summary

Marqeta, Inc. Chief Technology Officer Lukasz Strozek has filed an initial statement of beneficial ownership on Form 3. This filing establishes his status as an officer subject to insider reporting rules but does not show any stock transactions or specific share or option holdings in the provided data.

Key Terms

Form 3, beneficial ownership, Chief Technology Officer

3 terms

Form 3 regulatory

"has filed an initial statement of beneficial ownership on Form 3"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

beneficial ownership financial

"filed an initial statement of beneficial ownership on Form 3"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Chief Technology Officer financial

"Marqeta, Inc. Chief Technology Officer Lukasz Strozek has filed"

The chief technology officer is the senior executive who sets a company's technology vision and oversees development, engineering, and technical operations—think of them as the lead architect and head mechanic who decides what tools the business builds and how they run. Their choices affect product direction, cost structure, cybersecurity and scalability, so investors watch the CTO to gauge a company’s ability to innovate, compete and manage technical risk.

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
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1. Name and Address of Reporting Person^*

Strozek Lukasz

(Last) (First) (Middle)

180 GRAND AVENUE

6TH FLOOR

(Street)

OAKLAND CALIFORNIA 94612

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
05/18/2026

3. Issuer Name and Ticker or Trading Symbol
Marqeta, Inc. [ MQ ]

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

No securities are beneficially owned.

	/s/ Tracy Foard, Attorney-in-Fact	05/18/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the Marqeta (MQ) Form 3 filing for Lukasz Strozek represent?

The Form 3 for Marqeta CTO Lukasz Strozek is an initial statement of beneficial ownership. It records that he is now a reporting insider, subject to ongoing disclosure rules for his Marqeta equity holdings and any future transactions in company securities.

Did Marqeta (MQ) CTO Lukasz Strozek buy or sell shares in this Form 3?

No transactions are shown in this Form 3 for Marqeta CTO Lukasz Strozek. The transaction summary lists zero buy, sell, exercise, gift, tax withholding, or restructuring events, indicating this filing only establishes his reporting status, not any trades.

Does the Marqeta (MQ) Form 3 disclose how many shares the CTO owns?

The provided Form 3 data for Marqeta CTO Lukasz Strozek does not list any specific share or option holdings. The holding entries and derivative summaries are empty, so the exact number of securities beneficially owned is not detailed in this excerpt.

Why is Marqeta (MQ) CTO Lukasz Strozek considered an insider for SEC reporting?

Lukasz Strozek is identified as Chief Technology Officer of Marqeta, which makes him a corporate officer. Officers are treated as insiders under SEC rules and must report their beneficial ownership and subsequent transactions in company securities using forms like Form 3, 4, and 5.

Does the Marqeta (MQ) CTO Form 3 mention Rule 10b5-1 trading plans?

The Form 3 data for Marqeta CTO Lukasz Strozek does not contain any footnote references to Rule 10b5-1 trading plans. Footnotes are effectively empty here, so there is no indication of any pre-arranged trading arrangement in this particular filing excerpt.