Vlad Vitoc - 29 May 2026 Form 4 Insider Report for MAIA Biotechnology, Inc. (MAIA)

Reporting relationship: Chief Executive Officer, Director, 10%+ Owner
Issuer ticker: MAIA
Reported as of: 29 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 01 Jun 2026, 08:54:27 UTC
Prior SEC filing: 14 Apr 2026
Next SEC filing: 02 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Vlad Vitoc

Key filing fact

Vlad Vitoc filed Form 4 for MAIA Biotechnology, Inc. (MAIA) on 01 Jun 2026.

Key facts

This page summarizes Vlad Vitoc's Form 4 filing for MAIA Biotechnology, Inc. (MAIA).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 01 Jun 2026, 08:54.

Change

Previous filing in this sequence was filed on 14 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001913257 Primary reporting owner

Vitoc Vlad

Relationship: Chief Executive Officer, Director, 10%+ Owner
Address: 444 WEST LAKE STREET,, CHICAGO
Signature: /s/ Vlad Vitoc
Signature date: 01 Jun 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MAIA transaction Derivative

Stock Options

Award

Transaction value
Shares: +800,000
Change %
Price: $0.000000^*
Shares after: 800,000
Date: 29 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 800,000
Exercise price: $1.39
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The stock options, granted on May 29, 2026 pursuant to MAIA Biotechnology, Inc's 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary date of the grant and the remaining options to vest ratably monthly thereafter for 36 months.