MAIA Biotechnology, Inc. (MAIA) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, MAIA Biotechnology's top three insider holders are Stan Smith (Director, 1.42Mn shares), Ngar Yee Louie (Director, 1.25Mn shares), Vlad Vitoc (Chief Executive Officer, 903.42K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Stan Smith 0 1,421,478 22 Dec, 2025
Ngar Yee Louie 1,248,888 0 22 Dec, 2025
Vlad Vitoc Chief Executive Officer 903,421 0 03 Dec, 2025
Ramiro Guerrero 588,218 0 12 May, 2025
Cristian Luput 437,628 0 28 Nov, 2025
Laurentiu Vlad 376,933 0 02 Aug, 2022
Steven M Chaouki 151,873 0 22 Dec, 2025
Sergei Gryaznov Chief Scientific Officer 44,511 0 08 Dec, 2022
Mihail Obrocea Chief Medical Officer 27,100 0 02 Aug, 2022
Joseph F Mcguire Chief Financial Officer 9,400 0 28 Apr, 2023

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
31 Dec, 2025 Cristian Luput Options A 25,206 $0.00 25,206 D A
31 Dec, 2025 Stan Smith Options A 29,216 $0.00 29,216 I A
31 Dec, 2025 Ngar Yee Louie Options A 29,789 $0.00 29,789 D A
31 Dec, 2025 Steven M Chaouki Options A 24,633 $0.00 24,633 D A
31 Dec, 2025 Ramiro Guerrero Options A 24,060 $0.00 24,060 D A
31 Dec, 2025 Jean-Manasse Theagene Options A 24,060 $0.00 24,060 D A
22 Dec, 2025 Stan Smith Common Stock A 57,189 $1.22 1,421,478 I P
22 Dec, 2025 Steven M Chaouki Common Stock A 40,849 $1.22 151,873 D P
22 Dec, 2025 Ngar Yee Louie Common Stock A 81,699 $1.22 1,248,888 D P
22 Dec, 2025 Steven M Chaouki Stock Options A 40,849 $1.36 40,849 D P
22 Dec, 2025 Ngar Yee Louie Stock Options A 81,699 $1.36 81,699 D P
22 Dec, 2025 Stan Smith Stock Options A 57,189 $1.36 57,189 I P
05 Dec, 2025 Stan Smith Common Stock A 4,580 $1.20 4,580 I P
05 Dec, 2025 Stan Smith Common Stock A 4,580 $1.19 4,580 I P
05 Dec, 2025 Stan Smith Common Stock A 4,580 $1.20 4,580 I P
26 Nov, 2025 Vlad Vitoc Common Stock A 22,000 $1.05 853,421 D P
25 Nov, 2025 Vlad Vitoc Common Stock A 10,500 $0.97 831,421 D P
28 Nov, 2025 Vlad Vitoc Common Stock A 50,000 $1.14 903,421 D P
26 Nov, 2025 Cristian Luput Common Stock A 20,000 $1.08 419,483 D P
26 Nov, 2025 Stan Smith Common Stock A 15,000 $1.04 1,364,289 I P