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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
Apr 5, 2023 (view filing)Apr 3-42 daysVitoc VladChief Executive OfficerPPurchase+2.30K$3.52+$8.11K+0.3%805.1K after2 lots10b5-1
Apr 17, 2023 (view filing)Apr 13-144 daysLuput CristianDirectorPPurchase+1.42K$3.60+$5.12K+0.5%293.5K after2 lots10b5-1
Apr 18, 2023 (view filing)Apr 171 dayLuput CristianDirectorPPurchase+1.58K$3.69+$5.82K+0.5%295.1K after10b5-1
Apr 19, 2023 (view filing)Apr 181 dayGuerrero RamiroDirectorPPurchase+1.26K$4.17+$5.27K+0.4%303.0K after10b5-1
Apr 21, 2023 (view filing)Apr 201 daySmith StanDirectorPPurchase+10.0K$3.74+$37.4K+1.8%553.3K after10b5-1
Apr 28, 2023 (view filing)Apr 271 daySmith StanDirectorPPurchase+133.3K$2.25+$299.9K+24.1%686.6K after
Apr 28, 2023 (view filing)Apr 271 dayLouie Ngar YeeDirectorPPurchase+48.0K$2.25+$108.0K+5.2%976.6K after
Apr 28, 2023 (view filing)Apr 271 dayGuerrero RamiroDirectorPPurchase+8.50K$2.25+$19.1K+2.8%311.5K after
Apr 28, 2023 (view filing)Apr 271 dayMcGuire Joseph FChief Financial OfficerPPurchase+4.40K$2.25+$9.90K+88.0%9.40K after
May 1, 2023 (view filing)Apr 283 daysVitoc VladChief Executive OfficerPPurchase+4.00K$2.50+$10.0K+0.5%809.1K after10b5-1
May 17, 2023 (view filing)May 152 daysLuput CristianDirectorPPurchase+3.00K$2.63+$7.89K+1.0%298.1K after10b5-1
May 22, 2023 (view filing)May 184 daysGuerrero RamiroDirectorPPurchase+1.20K$2.47+$2.96K+0.4%312.7K after10b5-1
Mar 15, 2024 (view filing)Mar 141 dayGuerrero RamiroDirectorPPurchase+6.93K$1.17+$8.11K+2.2%319.6K after
Mar 15, 2024 (view filing)Mar 141 dayGuerrero RamiroDirectorPPurchase+6.93K$1.30+$9.01K–6.93K afterDerivative
Mar 15, 2024 (view filing)Mar 141 dayLuput CristianDirectorPPurchase+69.3K$1.17+$81.1K+23.2%367.4K after
Mar 15, 2024 (view filing)Mar 141 dayLuput CristianDirectorPPurchase+69.3K$1.30+$90.1K–69.3K afterDerivative
Mar 15, 2024 (view filing)Mar 141 dayLouie Ngar YeeDirectorPPurchase+170.9K$1.17+$200.0K+17.5%1.15M after
Mar 15, 2024 (view filing)Mar 141 dayLouie Ngar YeeDirectorPPurchase+170.9K$1.30+$222.2K–170.9K afterDerivative
Mar 15, 2024 (view filing)Mar 141 daySmith StanDirectorPPurchase+170.9K$1.17+$200.0K+24.9%857.6K after
Mar 15, 2024 (view filing)Mar 141 daySmith StanDirectorPPurchase+170.9K$1.30+$222.2K–170.9K afterDerivativeDuplicate filing
Mar 18, 2024 (view filing)Mar 144 daysChaouki Steven MDirectorPPurchase+34.6K$1.17+$40.5K+63.9%88.9K after
Mar 18, 2024 (view filing)Mar 144 daysChaouki Steven MDirectorPPurchase+34.6K$1.30+$45.0K–34.6K afterDerivative
Apr 26, 2024 (view filing)Apr 251 daySmith StanDirectorPPurchase+147.5K$2.03+$299.4K+17.2%1.01M after
Apr 26, 2024 (view filing)Apr 251 daySmith StanDirectorPPurchase+147.5K$2.26+$333.3K–147.5K afterDerivative
Apr 26, 2024 (view filing)Apr 251 dayLouie Ngar YeeDirectorPPurchase+19.7K$2.03+$39.9K+1.7%1.17M after
Apr 26, 2024 (view filing)Apr 251 dayLouie Ngar YeeDirectorPPurchase+19.7K$2.26+$44.4K–19.7K afterDerivative
Nov 4, 2024 (view filing)Nov 13 daysSmith StanDirectorPPurchase+100.0K$2.51+$251.0K+11.7%957.6K after
Nov 4, 2024 (view filing)Nov 13 daysSmith StanDirectorPPurchase+100.0K$2.26+$226.0K–100.0K afterDerivative
Nov 4, 2024 (view filing)Nov 13 daysGuerrero RamiroDirectorPPurchase+88.5K$2.51+$222.2K+27.7%408.1K after
Nov 4, 2024 (view filing)Nov 13 daysGuerrero RamiroDirectorPPurchase+88.5K$2.26+$200.1K–88.5K afterDerivative
Nov 4, 2024 (view filing)Nov 13 daysChaouki Steven MDirectorPPurchase+22.1K$2.51+$55.6K+24.9%111.0K after
Nov 4, 2024 (view filing)Nov 13 daysChaouki Steven MDirectorPPurchase+22.1K$2.26+$50.0K–22.1K afterDerivative
Nov 4, 2024 (view filing)Nov 13 daysLuput CristianDirectorPPurchase+22.1K$2.51+$55.6K+6.0%389.5K after
Nov 4, 2024 (view filing)Nov 13 daysLuput CristianDirectorPPurchase+22.1K$2.26+$50.0K–22.1K afterDerivative
Dec 13, 2024 (view filing)Dec 13Same dayGuerrero RamiroDirectorPPurchase+53.4K$1.87+$99.9K+11.6%515.0K after
Dec 13, 2024 (view filing)Dec 13Same dayGuerrero RamiroDirectorPPurchase+53.4K$2.08+$111.1K–53.4K afterDerivative
Dec 13, 2024 (view filing)Dec 13Same daySmith StanDirectorPPurchase+25.0K$1.87+$46.8K+2.3%1.13M after
Dec 13, 2024 (view filing)Dec 13Same daySmith StanDirectorPPurchase+25.0K$2.08+$52.0K–25.0K afterDerivative
Mar 5, 2025 (view filing)Feb 249 daysGuerrero RamiroDirectorPPurchase+73.3K$1.50+$110.0K+15.9%534.9K afterAmended
Mar 5, 2025 (view filing)Feb 249 daysGuerrero RamiroDirectorPPurchase+73.3K$1.87+$137.1K–73.3K afterAmendedDerivative
Mar 5, 2025 (view filing)Feb 249 daysSmith StanDirectorPPurchase+50.0K$1.50+$75.0K+4.4%1.18M afterAmended
Mar 5, 2025 (view filing)Feb 249 daysSmith StanDirectorPPurchase+50.0K$1.87+$93.5K–50.0K afterAmendedDerivative
Mar 5, 2025 (view filing)Mar 32 daysSmith StanDirectorPPurchase+25.0K$1.50+$37.5K+2.1%1.21M after
Mar 5, 2025 (view filing)Mar 32 daysSmith StanDirectorPPurchase+25.0K$1.85+$46.3K–25.0K afterDerivative
Mar 5, 2025 (view filing)Mar 32 daysGuerrero RamiroDirectorPPurchase+33.3K$1.50+$50.0K+6.2%568.2K after
Mar 5, 2025 (view filing)Mar 32 daysGuerrero RamiroDirectorPPurchase+33.3K$1.85+$61.7K–33.3K afterDerivative
May 12, 2025 (view filing)May 84 daysSmith StanDirectorPPurchase+66.7K$1.50+$100.0K+5.5%1.27M after
May 12, 2025 (view filing)May 84 daysSmith StanDirectorPPurchase+66.7K$2.05+$136.7K–66.7K afterDerivative
May 12, 2025 (view filing)May 84 daysGuerrero RamiroDirectorPPurchase+20.0K$1.50+$30.0K+3.5%588.2K after
May 12, 2025 (view filing)May 84 daysGuerrero RamiroDirectorPPurchase+20.0K$2.05+$41.0K–20.0K afterDerivative