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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
Nov 4, 2024 (view filing)Nov 13 daysSmith StanDirectorPPurchase+100.0K$2.26+$226.0K–100.0K 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
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
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
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 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 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 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
May 22, 2023 (view filing)May 184 daysGuerrero RamiroDirectorPPurchase+1.20K$2.47+$2.96K+0.4%312.7K after10b5-1
May 17, 2023 (view filing)May 152 daysLuput CristianDirectorPPurchase+3.00K$2.63+$7.89K+1.0%298.1K after10b5-1
May 1, 2023 (view filing)Apr 283 daysVitoc VladChief Executive OfficerPPurchase+4.00K$2.50+$10.0K+0.5%809.1K after10b5-1
Apr 28, 2023 (view filing)Apr 271 dayMcGuire Joseph FChief Financial OfficerPPurchase+4.40K$2.25+$9.90K+88.0%9.40K 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 dayLouie Ngar YeeDirectorPPurchase+48.0K$2.25+$108.0K+5.2%976.6K after
Apr 28, 2023 (view filing)Apr 271 daySmith StanDirectorPPurchase+133.3K$2.25+$299.9K+24.1%686.6K after
Apr 21, 2023 (view filing)Apr 201 daySmith StanDirectorPPurchase+10.0K$3.74+$37.4K+1.8%553.3K after10b5-1
Apr 19, 2023 (view filing)Apr 181 dayGuerrero RamiroDirectorPPurchase+1.26K$4.17+$5.27K+0.4%303.0K after10b5-1
Apr 18, 2023 (view filing)Apr 171 dayLuput CristianDirectorPPurchase+1.58K$3.69+$5.82K+0.5%295.1K after10b5-1
Apr 17, 2023 (view filing)Apr 13-144 daysLuput CristianDirectorPPurchase+1.42K$3.60+$5.12K+0.5%293.5K after2 lots10b5-1
Apr 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 3, 2023 (view filing)Mar 30-314 daysVitoc VladChief Executive OfficerPPurchase+1.70K$3.46+$5.88K+0.2%802.8K after2 lots10b5-1
Mar 28, 2023 (view filing)Mar 244 daysSmith StanDirectorPPurchase+938$3.49+$3.27K+0.2%543.3K after
Mar 24, 2023 (view filing)Mar 22-232 daysSmith StanDirectorPPurchase+3.32K$3.32+$11.0K+0.6%542.4K after2 lots
Mar 22, 2023 (view filing)Mar 20-212 daysSmith StanDirectorPPurchase+5.74K$3.23+$18.5K+1.1%539.1K after2 lots
Mar 20, 2023 (view filing)Mar 164 daysGuerrero RamiroDirectorPPurchase+1.33K$3.64+$4.85K+0.4%301.7K after
Mar 14, 2023 (view filing)Mar 10-134 daysLuput CristianDirectorPPurchase+8.38K$4.02+$33.7K+3.0%292.1K after2 lots
Mar 13, 2023 (view filing)Mar 9-104 daysGuerrero RamiroDirectorPPurchase+1.50K$3.98+$5.97K+0.5%300.4K after2 lots
Mar 13, 2023 (view filing)Mar 94 daysSmith StanDirectorPPurchase+3.58K$4.03+$14.4K+0.7%533.3K after
Mar 10, 2023 (view filing)Mar 8-92 daysLuput CristianDirectorPPurchase+2.74K$4.03+$11.1K+1.0%283.7K after2 lots
Mar 9, 2023 (view filing)Mar 7-82 daysSmith StanDirectorPPurchase+5.04K$4.21+$21.2K+1.0%529.7K 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 8, 2023 (view filing)Mar 6-72 daysLuput CristianDirectorPPurchase+2.21K$4.23+$9.37K+0.8%280.9K 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 daysVitoc VladChief Executive OfficerPPurchase+1.98K$4.24+$8.41K+0.2%799.5K 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 6, 2023 (view filing)Mar 2-34 daysVitoc VladChief Executive OfficerPPurchase+2.44K$4.47+$10.9K+0.3%797.6K after2 lots
Mar 3, 2023 (view filing)Mar 1-22 daysSmith StanDirectorPPurchase+221$4.47+$988.470.0%517.6K 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 1, 2023 (view filing)Feb 27-282 daysSmith StanDirectorPPurchase+1.84K$4.48+$8.23K+0.4%517.4K after2 lots
Feb 23, 2023 (view filing)Feb 21-222 daysSmith StanDirectorPPurchase+1.30K$4.48+$5.83K+0.3%515.5K after2 lots
Feb 22, 2023 (view filing)Feb 175 daysVitoc VladChief Executive OfficerPPurchase+73$4.25+$310.250.0%793.6K after
Feb 21, 2023 (view filing)Feb 16-175 daysSmith StanDirectorPPurchase+137$4.25+$582.250.0%514.2K after2 lots
Feb 21, 2023 (view filing)Feb 16-175 daysGuerrero RamiroDirectorPPurchase+60$4.25+$2550.0%297.5K after2 lots