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MAIA Biotechnology, Inc.

MAIA
Exchange
NYSE
Industry
Pharmaceutical Preparations
SEC CIK
0001878313

In the last 90 days, MAIA Biotechnology, Inc. insiders filed 5 open-market purchases and 0 sales; 36 institutions reported holding it in 13F filings for Q2 2026, worth $19.4M in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by MAIA Biotechnology, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
5 filings
2 insiders, $352.3K in total
Open-market sells
0 filings
Insiders trading
2
Net value
+$352.3K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for MAIA Biotechnology, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for MAIA Biotechnology, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Vitoc VladChief Executive Officer1,049,121Sep 15, 20267
Guerrero RamiroDirector773,296Sep 14, 20268
Chaouki Steven MDirector151,873Jul 2, 20265
Louie Ngar YeeDirector1,248,888Jul 2, 20265
Luput CristianDirector437,628Jul 2, 20266
Smith StanDirector1,519,178IndirectJul 2, 202611
Theagene Jean-ManasseDirector–Jul 2, 20264
Gryaznov SergeiChief Scientific Officer46,511Jun 2, 20263
Himmelreich Jeffrey CHead of Finance–Jun 1, 20262
McGuire Joseph FChief Financial Officer9,400Jun 5, 20230
Obrocea MihailChief Medical Officer27,100Jun 5, 20230
Vlad LaurentiuDirector376,933Jan 4, 20230

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 2, 2022 (view filing)Jul 28-Aug 15 daysLateGuerrero RamiroDirectorPPurchase+29.0K$4.69+$136.0K+11.2%288.4K after2 lots
Aug 2, 2022 (view filing)Aug 11 dayVlad LaurentiuDirectorPPurchase+5.00K$5.00+$25.0K+1.3%376.9K after
Aug 2, 2022 (view filing)Aug 11 dayLuput CristianDirectorPPurchase+500$5.00+$2.50K+0.2%278.1K after
Aug 2, 2022 (view filing)Aug 11 dayMcGuire Joseph FChief Financial OfficerPPurchase+5.00K$5.00+$25.0KNew position5.00K after
Aug 2, 2022 (view filing)Aug 11 dayGryaznov SergeiChief Scientific OfficerPPurchase+3.00K$5.00+$15.0K+13.9%24.5K after
Aug 2, 2022 (view filing)Aug 11 dayChaouki Steven MDirectorPPurchase+5.00K$5.00+$25.0K+12.1%46.3K after
Aug 2, 2022 (view filing)Aug 11 dayObrocea MihailChief Medical OfficerPPurchase+1.00K$5.00+$5.00K+3.8%27.1K after
Aug 2, 2022 (view filing)Aug 11 dayLouie Ngar YeeDirectorPPurchase+20.0K$5.00+$100.0K+2.2%928.6K after
Aug 2, 2022 (view filing)Aug 11 daySmith StanDirectorPPurchase+200.0K$5.00+$1.00M+67.5%496.1K after
Sep 1, 2022 (view filing)Aug 302 daysGuerrero RamiroDirectorPPurchase+283.31$3.97+$1.12K+0.1%288.7K after
Sep 13, 2022 (view filing)Sep 13Same dayGuerrero RamiroDirectorPPurchase+8.80K$3.85+$33.9K+3.0%297.5K after
Nov 23, 2022 (view filing)Aug 1114 daysVitoc VladChief Executive OfficerPPurchase+6.00K$5.00+$30.0K+0.8%789.1K afterAmended
Nov 23, 2022 (view filing)Aug 1114 daysVitoc VladChief Executive OfficerPPurchase+10.0K$5.00+$50.0K+5.0%210.0K afterAmended
Dec 22, 2022 (view filing)Dec 20-212 daysSmith StanDirectorPPurchase+4.45K$3.52+$15.7K+0.9%507.8K after2 lots
Dec 27, 2022 (view filing)Dec 22-235 daysSmith StanDirectorPPurchase+1.71K$3.40+$5.83K+0.3%509.5K after2 lots
Dec 29, 2022 (view filing)Dec 27-282 daysSmith StanDirectorPPurchase+1.87K$3.40+$6.36K+0.4%511.4K after2 lots
Jan 3, 2023 (view filing)Dec 29-30, 20225 daysSmith StanDirectorPPurchase+1.97K$3.49+$6.88K+0.4%513.3K after2 lots
Jan 4, 2023 (view filing)Dec 30, 2022-Jan 3, 20235 daysVitoc VladChief Executive OfficerPPurchase+2.73K$3.62+$9.89K+0.3%791.9K after2 lots
Jan 6, 2023 (view filing)Jan 42 daysVitoc VladChief Executive OfficerPPurchase+1.27K$3.68+$4.66K+0.2%793.1K after
Jan 18, 2023 (view filing)Jan 135 daysLuput CristianDirectorPPurchase+504$3.88+$1.96K+0.2%278.6K after
Jan 27, 2023 (view filing)Jan 25-262 daysSmith StanDirectorPPurchase+236$4.24+$1.00K0.0%513.6K after2 lots
Feb 14, 2023 (view filing)Feb 104 daysSmith StanDirectorPPurchase+337$4.25+$1.43K+0.1%513.9K after
Feb 14, 2023 (view filing)Feb 104 daysVitoc VladChief Executive OfficerPPurchase+343$4.24+$1.45K0.0%793.5K after
Feb 16, 2023 (view filing)Feb 14-152 daysLuput CristianDirectorPPurchase+24$4.25+$1020.0%278.6K after2 lots
Feb 16, 2023 (view filing)Feb 14-152 daysSmith StanDirectorPPurchase+208$4.25+$8840.0%514.1K after2 lots
Feb 17, 2023 (view filing)Feb 15-162 daysVitoc VladChief Executive OfficerPPurchase+20$4.25+$850.0%793.5K after2 lots
Feb 21, 2023 (view filing)Feb 16-175 daysLuput CristianDirectorPPurchase+134$4.24+$568.740.0%278.7K after2 lots
Feb 21, 2023 (view filing)Feb 16-175 daysGuerrero RamiroDirectorPPurchase+60$4.25+$2550.0%297.5K after2 lots
Feb 21, 2023 (view filing)Feb 16-175 daysSmith StanDirectorPPurchase+137$4.25+$582.250.0%514.2K after2 lots
Feb 22, 2023 (view filing)Feb 175 daysVitoc VladChief Executive OfficerPPurchase+73$4.25+$310.250.0%793.6K after
Feb 23, 2023 (view filing)Feb 21-222 daysSmith StanDirectorPPurchase+1.30K$4.48+$5.83K+0.3%515.5K after2 lots
Mar 1, 2023 (view filing)Feb 27-282 daysSmith StanDirectorPPurchase+1.84K$4.48+$8.23K+0.4%517.4K after2 lots
Mar 2, 2023 (view filing)Feb 28-Mar 12 daysVitoc VladChief Executive OfficerPPurchase+1.56K$4.49+$6.99K+0.2%795.1K after2 lots
Mar 3, 2023 (view filing)Mar 1-22 daysSmith StanDirectorPPurchase+221$4.47+$988.470.0%517.6K after2 lots
Mar 6, 2023 (view filing)Mar 2-34 daysVitoc VladChief Executive OfficerPPurchase+2.44K$4.47+$10.9K+0.3%797.6K after2 lots
Mar 7, 2023 (view filing)Mar 3-64 daysSmith StanDirectorPPurchase+7.10K$4.40+$31.3K+1.4%524.7K after2 lots
Mar 8, 2023 (view filing)Mar 6-72 daysVitoc VladChief Executive OfficerPPurchase+1.98K$4.24+$8.41K+0.2%799.5K after2 lots
Mar 8, 2023 (view filing)Mar 6-72 daysGuerrero RamiroDirectorPPurchase+1.35K$4.25+$5.74K+0.5%298.9K after2 lots
Mar 8, 2023 (view filing)Mar 6-72 daysLuput CristianDirectorPPurchase+2.21K$4.23+$9.37K+0.8%280.9K after2 lots
Mar 9, 2023 (view filing)Mar 81 dayVitoc VladChief Executive OfficerPPurchase+1.58K$4.21+$6.66K+0.2%801.1K after
Mar 9, 2023 (view filing)Mar 7-82 daysSmith StanDirectorPPurchase+5.04K$4.21+$21.2K+1.0%529.7K after2 lots
Mar 10, 2023 (view filing)Mar 8-92 daysLuput CristianDirectorPPurchase+2.74K$4.03+$11.1K+1.0%283.7K after2 lots
Mar 13, 2023 (view filing)Mar 94 daysSmith StanDirectorPPurchase+3.58K$4.03+$14.4K+0.7%533.3K after
Mar 13, 2023 (view filing)Mar 9-104 daysGuerrero RamiroDirectorPPurchase+1.50K$3.98+$5.97K+0.5%300.4K after2 lots
Mar 14, 2023 (view filing)Mar 10-134 daysLuput CristianDirectorPPurchase+8.38K$4.02+$33.7K+3.0%292.1K after2 lots
Mar 20, 2023 (view filing)Mar 164 daysGuerrero RamiroDirectorPPurchase+1.33K$3.64+$4.85K+0.4%301.7K after
Mar 22, 2023 (view filing)Mar 20-212 daysSmith StanDirectorPPurchase+5.74K$3.23+$18.5K+1.1%539.1K after2 lots
Mar 24, 2023 (view filing)Mar 22-232 daysSmith StanDirectorPPurchase+3.32K$3.32+$11.0K+0.6%542.4K after2 lots
Mar 28, 2023 (view filing)Mar 244 daysSmith StanDirectorPPurchase+938$3.49+$3.27K+0.2%543.3K after
Apr 3, 2023 (view filing)Mar 30-314 daysVitoc VladChief Executive OfficerPPurchase+1.70K$3.46+$5.88K+0.2%802.8K after2 lots10b5-1