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CIK 0001878313 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

MAIA Biotechnology, Inc.

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Ticker
MAIA
Exchange
NYSE
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
312-416-8592
Business address
444 WEST LAKE STREET, SUITE 1700, CHICAGO, IL, 60606
Open-market buys, last 90 days
$352,317
in 5 filings
Open-market sales, last 90 days
$0
in 0 filings

Net +$352,317. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Guerrero Ramiro +$252K Director 4 filings
  2. Vitoc Vlad +$100K Chief Executive Officer 1 filing

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-06-01 Smith Stan Director Purchase +75,000 $1.34 $100K 1,519,178
2026-06-01 Gryaznov Sergei Chief Scientific Officer Purchase +2,000 $1.35 $3K 46,511
2026-05-29 Vitoc Vlad Chief Executive Officer Grant or award · Stock Options +800,000 800,000
2026-05-29 Gryaznov Sergei Chief Scientific Officer Grant or award · Stock Options +400,000 400,000
2026-05-29 Himmelreich Jeffrey C Head of Finance Grant or award · Stock Options +60,000 60,000
2026-04-10 Vitoc Vlad Chief Executive Officer Grant or award · Stock Options +800,000 800,000
2026-04-10 Gryaznov Sergei Chief Scientific Officer Grant or award · Stock Options +400,000 400,000
2026-04-10 Himmelreich Jeffrey C Head of Finance Grant or award · Stock Options +30,000 30,000
2026-03-31 CHAOUKI STEVEN M Director Grant or award · Stock Options +27,907 27,907
2026-03-31 Guerrero Ramiro Director Grant or award · Stock Options +27,258 27,258
2026-03-31 Louie Ngar Yee Director Grant or award · Stock Options +33,748 33,748
2026-03-31 Luput Cristian Director Grant or award · Stock Options +28,556 28,556
2026-03-31 Theagene Jean-Manasse Director Grant or award · Stock Options +27,258 27,258
2026-03-31 Smith Stan Director Grant or award · Stock Options +33,099 33,099
2025-12-31 Theagene Jean-Manasse Director Grant or award · Options +24,060 24,060
2025-12-31 Smith Stan Director Grant or award · Options +29,216 29,216
2025-12-31 Luput Cristian Director Grant or award · Options +25,206 25,206
2025-12-31 Louie Ngar Yee Director Grant or award · Options +29,789 29,789
2025-12-31 Guerrero Ramiro Director Grant or award · Options +24,060 24,060
2025-12-31 CHAOUKI STEVEN M Director Grant or award · Options +24,633 24,633

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