MAIA Biotechnology, Inc. ($MAIA) Insider Transactions

Last updated: 2026-04-02 23:06 UTC | Total transactions: 155

In the last 12 months, insiders at MAIA Biotechnology, Inc. ($MAIA) filed 155 transactions with the SEC: 70 open-market purchases totaling $2,792,436 and 0 sales totaling $0. Net insider sentiment: net buying.

MAIA Biotechnology, Inc. operates in the Pharmaceutical preparations industry (Life sciences sector).

Most Active Insiders

View all SEC Filings for MAIA Biotechnology, Inc. (MAIA).

Set Up your own filters →

Recent Insider Transactions

Transaction Date Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 31, 2026 CHAOUKI STEVEN M Director A Stock Options 27907 $0.00 27,907.0000 37,032,307 9999.99% 0.08%
March 31, 2026 Louie Ngar Yee Director A Stock Options 33748 $0.00 33,748.0000 37,032,307 9999.99% 0.09%
March 31, 2026 Luput Cristian Director A Stock Options 28556 $0.00 28,556.0000 37,032,307 9999.99% 0.08%
March 31, 2026 Theagene Jean-Manasse Director A Stock Options 27258 $0.00 27,258.0000 37,032,307 9999.99% 0.07%
March 31, 2026 Smith Stan Director A Stock Options 33099 $0.00 33,099.0000 37,032,307 9999.99% 0.09%
March 31, 2026 Guerrero Ramiro Director A Stock Options 27258 $0.00 27,258.0000 37,032,307 9999.99% 0.07%
Sept. 19, 2022 Smith Stan Director P Common Stock 2700 $3.69 1,437,918.0000 0 0.19% 0.00%
May 1, 2024 Smith Stan Director G Common Stock 20000 $0.00 1,457,918.0000 0 1.39% 0.00%
Dec. 31, 2025 Theagene Jean-Manasse Director A Options 24060 $0.00 24,060.0000 37,032,307 9999.99% 0.06%
Dec. 31, 2025 Smith Stan Director A Options 29216 $0.00 29,216.0000 37,032,307 9999.99% 0.08%
Dec. 31, 2025 Luput Cristian Director A Options 25206 $0.00 25,206.0000 37,032,307 9999.99% 0.07%
Dec. 31, 2025 Guerrero Ramiro Director A Options 24060 $0.00 24,060.0000 37,032,307 9999.99% 0.06%
Dec. 31, 2025 Louie Ngar Yee Director A Options 29789 $0.00 29,789.0000 37,032,307 9999.99% 0.08%
Dec. 31, 2025 CHAOUKI STEVEN M Director A Options 24633 $0.00 24,633.0000 37,032,307 9999.99% 0.07%
Dec. 22, 2025 Smith Stan Director P Stock Options 57189 $1.36 57,189.0000 37,032,307 9999.99% 0.15%
Dec. 22, 2025 CHAOUKI STEVEN M Director P Stock Options 40849 $1.36 40,849.0000 37,032,307 9999.99% 0.11%
Dec. 22, 2025 Louie Ngar Yee Director P Common Stock 81699 $1.22 1,248,888.0000 37,032,307 7.00% 0.22%
Dec. 22, 2025 Louie Ngar Yee Director P Stock Options 81699 $1.36 81,699.0000 37,032,307 9999.99% 0.22%
Dec. 22, 2025 Smith Stan Director P Common Stock 57189 $1.22 1,435,218.0000 37,032,307 4.15% 0.15%
Dec. 22, 2025 CHAOUKI STEVEN M Director P Common Stock 40849 $1.22 151,873.0000 37,032,307 36.79% 0.11%
Dec. 5, 2025 Smith Stan Director P Common Stock 4580 $1.20 1,368,869.0000 37,032,307 0.34% 0.01%
Dec. 5, 2025 Smith Stan Director P Common Stock 4580 $1.19 1,368,869.0000 37,032,307 0.34% 0.01%
Dec. 5, 2025 Smith Stan Director P Common Stock 4580 $1.20 1,368,869.0000 37,032,307 0.34% 0.01%
Nov. 28, 2025 Vitoc Vlad Chief Executive Officer P Common Stock 50000 $1.14 1,113,521.0000 37,032,307 4.70% 0.14%
Nov. 25, 2025 Vitoc Vlad Chief Executive Officer P Common Stock 10500 $0.97 1,041,521.0000 37,032,307 1.02% 0.03%
Nov. 26, 2025 Vitoc Vlad Chief Executive Officer P Common Stock 22000 $1.05 1,063,521.0000 37,032,307 2.11% 0.06%
Nov. 26, 2025 Smith Stan Director P Common Stock 15000 $1.04 1,364,289.0000 37,032,307 1.11% 0.04%
Nov. 26, 2025 Vitoc Vlad Chief Executive Officer P Common Stock 22000 $1.05 1,063,421.0000 37,032,307 2.11% 0.06%
Nov. 28, 2025 Vitoc Vlad Chief Executive Officer P Common Stock 50000 $1.14 1,091,421.0000 37,032,307 4.80% 0.14%
Nov. 28, 2025 Luput Cristian Director P Common Stock 18145 $1.11 437,628.0000 37,032,307 4.33% 0.05%
Nov. 26, 2025 Luput Cristian Director P Common Stock 20000 $1.08 419,483.0000 37,032,307 5.01% 0.05%
Nov. 25, 2025 Luput Cristian Director P Common Stock 10000 $0.98 399,483.0000 37,032,307 2.57% 0.03%
Nov. 25, 2025 Vitoc Vlad Chief Executive Officer P Common Stock 10500 $0.97 1,041,421.0000 37,032,307 1.02% 0.03%
Nov. 25, 2025 Smith Stan Director P Common Stock 15000 $0.98 1,349,289.0000 37,032,307 1.12% 0.04%
Nov. 24, 2025 Smith Stan Director P Common Stock 10000 $0.99 1,334,289.0000 37,032,307 0.76% 0.03%
Nov. 21, 2025 Vitoc Vlad Chief Executive Officer P Common Stock 1800 $0.92 1,021,021.0000 37,032,307 0.18% 0.00%
Nov. 24, 2025 Vitoc Vlad Chief Executive Officer P Common Stock 10000 $0.99 1,031,021.0000 37,032,307 0.98% 0.03%
Oct. 2, 2025 Smith Stan Director A Stock Options 24844 $0.00 24,844.0000 29,587,314 9999.99% 0.08%
Oct. 2, 2025 Theagene Jean-Manasse Director A Stock Options 20459 $0.00 20,459.0000 29,587,314 9999.99% 0.07%
Oct. 2, 2025 Luput Cristian Director A Stock Options 21434 $0.00 21,434.0000 29,587,314 9999.99% 0.07%
Oct. 2, 2025 CHAOUKI STEVEN M Director A Stock Options 20946 $0.00 20,946.0000 29,587,314 9999.99% 0.07%
Oct. 2, 2025 Guerrero Ramiro Director A Stock Options 20459 $0.00 20,459.0000 29,587,314 9999.99% 0.07%
Oct. 2, 2025 Louie Ngar Yee Director A Stock Options 25331 $0.00 25,331.0000 29,587,314 9999.99% 0.09%
Oct. 1, 2025 Smith Stan Director P Warrants 19230 $1.57 19,230.0000 29,587,314 9999.99% 0.06%
Oct. 1, 2025 Smith Stan Director P Common Stock 19230 $1.30 1,324,289.0000 29,587,314 1.47% 0.06%
June 30, 2025 Luput Cristian Director A Stock Options 21350 $0.00 21,350.0000 29,587,314 9999.99% 0.07%
June 30, 2025 Theagene Jean-Manasse Director A Stock Options 20380 $0.00 20,380.0000 29,587,314 9999.99% 0.07%
June 30, 2025 CHAOUKI STEVEN M Director A Stock Options 20865 $0.00 20,865.0000 29,587,314 9999.99% 0.07%
June 30, 2025 Louie Ngar Yee Director A Stock Options 25232 $0.00 25,232.0000 29,587,314 9999.99% 0.09%
June 30, 2025 Guerrero Ramiro Director A Stock Options 20380 $0.00 20,380.0000 29,587,314 9999.99% 0.07%
June 30, 2025 Smith Stan Director A Stock Options 24747 $0.00 24,747.0000 29,587,314 9999.99% 0.08%
June 3, 2025 Smith Stan Director P Common Stock 33333 $1.50 1,305,059.0000 29,587,314 2.62% 0.11%
June 3, 2025 Smith Stan Director P Warrants 33333 $1.71 33,333.0000 29,587,314 9999.99% 0.11%
May 14, 2025 Vitoc Vlad Chief Executive Officer A Stock Options 400000 $0.00 400,000.0000 29,587,314 9999.99% 1.35%
May 14, 2025 Himmelreich Jeffrey C Head of Finance A Stock Options 40000 $0.00 40,000.0000 29,587,314 9999.99% 0.14%
May 14, 2025 Gryaznov Sergei Chief Scientific Officer A Stock Options 200000 $0.00 200,000.0000 29,587,314 9999.99% 0.68%
May 8, 2025 Guerrero Ramiro Director P Common Stock 20000 $1.50 588,218.0000 29,587,314 3.52% 0.07%
May 8, 2025 Guerrero Ramiro Director P Warrants 20000 $2.05 20,000.0000 29,587,314 9999.99% 0.07%
May 8, 2025 Smith Stan Director P Common Stock 66666 $1.50 1,271,726.0000 29,587,314 5.53% 0.23%
May 8, 2025 Smith Stan Director P Warrants 66666 $2.05 66,666.0000 29,587,314 9999.99% 0.23%
April 4, 2025 Smith Stan Director A Stock Options 24800 $0.00 24,800.0000 29,587,314 9999.99% 0.08%
April 4, 2025 CHAOUKI STEVEN M Director A Stock Options 20667 $0.00 20,667.0000 29,587,314 9999.99% 0.07%
April 4, 2025 Guerrero Ramiro Director A Stock Options 20291 $0.00 20,291.0000 29,587,314 9999.99% 0.07%
April 4, 2025 Louie Ngar Yee Director A Stock Options 26304 $0.00 26,304.0000 29,587,314 9999.99% 0.09%
April 4, 2025 Luput Cristian Director A Stock Options 21042 $0.00 21,042.0000 29,587,314 9999.99% 0.07%
April 4, 2025 Theagene Jean-Manasse Director A Stock Options 20291 $0.00 20,291.0000 29,587,314 9999.99% 0.07%
March 3, 2025 Smith Stan Director P Warrants 25000 $1.85 25,000.0000 0 9999.99% 0.00%
March 3, 2025 Guerrero Ramiro Director P Common Stock 33333 $1.50 568,218.0000 0 6.23% 0.00%
March 3, 2025 Guerrero Ramiro Director P Warrants 33333 $1.85 33,333.0000 0 9999.99% 0.00%
March 3, 2025 Smith Stan Director P Common Stock 25000 $1.50 1,205,060.0000 0 2.12% 0.00%
Feb. 24, 2025 Smith Stan Director P Warrants 50000 $1.87 50,000.0000 0 9999.99% 0.00%
Feb. 24, 2025 Guerrero Ramiro Director P Common Stock 73333 $1.50 534,885.0400 0 15.89% 0.00%
Feb. 24, 2025 Guerrero Ramiro Director P Warrants 73333 $1.87 73,333.0000 0 9999.99% 0.00%
Feb. 24, 2025 Smith Stan Director P Common Stock 50000 $1.50 1,180,060.0000 0 4.42% 0.00%
Feb. 24, 2025 Guerrero Ramiro Director P Warrants 73333 $1.87 73,333.0000 0 9999.99% 0.00%
Feb. 24, 2025 Smith Stan Director P Common Stock 50000 $1.50 1,180,060.0000 0 4.42% 0.00%
Feb. 24, 2025 Smith Stan Director P Warrants 50000 $1.87 50,000.0000 0 9999.99% 0.00%
Feb. 24, 2025 Guerrero Ramiro Director P Common Stock 73333 $1.50 534,885.0000 0 15.89% 0.00%
Feb. 10, 2025 Gryaznov Sergei Chief Scientific Officer A Stock Options 200000 $0.00 200,000.0000 0 9999.99% 0.00%
Feb. 10, 2025 Himmelreich Jeffrey C Head of Finance A Stock Options 10000 $0.00 10,000.0000 0 9999.99% 0.00%
Feb. 10, 2025 Vitoc Vlad Chief Executive Officer A Stock Options 400000 $0.00 400,000.0000 0 9999.99% 0.00%
Dec. 31, 2024 CHAOUKI STEVEN M Director A Stock Options 10225 $0.00 10,225.0000 0 9999.99% 0.00%
Dec. 31, 2024 Theagene Jean-Manasse Director A Stock Options 10225 $0.00 10,225.0000 0 9999.99% 0.00%
Dec. 31, 2024 Smith Stan Director A Stock Options 12782 $0.00 12,782.0000 0 9999.99% 0.00%
Dec. 31, 2024 Louie Ngar Yee Director A Stock Options 15338 $0.00 15,338.0000 0 9999.99% 0.00%
Dec. 31, 2024 Guerrero Ramiro Director A Stock Options 10225 $0.00 10,225.0000 0 9999.99% 0.00%
Dec. 31, 2024 Luput Cristian Director A Stock Options 10225 $0.00 10,225.0000 0 9999.99% 0.00%
Dec. 13, 2024 Guerrero Ramiro Director P Common Stock 53418 $1.87 514,970.0000 0 11.57% 0.00%
Dec. 13, 2024 Smith Stan Director P Common Stock 25000 $1.87 1,130,060.0000 0 2.26% 0.00%
Dec. 13, 2024 Smith Stan Director P Warrants 25000 $2.08 25,000.0000 0 9999.99% 0.00%
Dec. 13, 2024 Guerrero Ramiro Director P Warrants 53418 $2.08 53,418.0000 0 9999.99% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 19981 $1.80 190,772.0000 0 9.48% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 19982 $1.80 150,808.0000 0 11.70% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 19982 $1.80 19,982.0000 0 9999.99% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 41254 $2.50 123,759.0000 0 25.00% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 41254 $2.50 41,254.0000 0 9999.99% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 41253 $2.50 82,506.0000 0 33.33% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 41253 $2.50 41,253.0000 0 9999.99% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 41253 $2.50 41,253.0000 0 50.00% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 41253 $2.50 41,253.0000 0 9999.99% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 19981 $1.80 19,981.0000 0 9999.99% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 19982 $1.80 170,790.0000 0 10.47% 0.00%
Nov. 5, 2024 Vitoc Vlad Chief Executive Officer G Stock Options 19982 $1.80 19,982.0000 0 9999.99% 0.00%
Nov. 1, 2024 Smith Stan Director P Warrants 100000 $2.26 100,000.0000 0 9999.99% 0.00%
Nov. 1, 2024 CHAOUKI STEVEN M Director P Warrants 22133 $2.26 22,133.0000 0 9999.99% 0.00%
Nov. 1, 2024 Guerrero Ramiro Director P Common Stock 88534 $2.51 408,134.0400 0 27.70% 0.00%
Nov. 1, 2024 Guerrero Ramiro Director P Warrants 88534 $2.26 88,534.0000 0 9999.99% 0.00%
Nov. 1, 2024 Smith Stan Director P Common Stock 100000 $2.51 957,568.0000 0 11.66% 0.00%
Nov. 1, 2024 Luput Cristian Director P Common Stock 22133 $2.51 389,483.0000 0 6.03% 0.00%
Nov. 1, 2024 Luput Cristian Director P Warrants 22133 $2.26 22,133.0000 0 9999.99% 0.00%
Nov. 1, 2024 CHAOUKI STEVEN M Director P Common Stock 22133 $2.51 111,024.0000 0 24.90% 0.00%
Sept. 30, 2024 Guerrero Ramiro Director A Stock Options 7232 $0.00 7,232.0000 0 9999.99% 0.00%
Sept. 30, 2024 Theagene Jean-Manasse Director A Stock Options 7232 $0.00 7,232.0000 0 9999.99% 0.00%
Sept. 30, 2024 Louie Ngar Yee Director A Stock Options 10848 $0.00 10,848.0000 0 9999.99% 0.00%
Sept. 30, 2024 Luput Cristian Director A Stock Options 7232 $0.00 7,232.0000 0 9999.99% 0.00%
Sept. 30, 2024 Smith Stan Director A Stock Options 9040 $0.00 9,040.0000 0 9999.99% 0.00%
Sept. 30, 2024 CHAOUKI STEVEN M Director A Stock Options 7232 $0.00 7,232.0000 0 9999.99% 0.00%
June 30, 2024 Theagene Jean-Manasse Director A Stock Options 5728 $0.00 5,728.0000 0 9999.99% 0.00%
June 30, 2024 Smith Stan Director A Stock Options 7160 $0.00 7,160.0000 0 9999.99% 0.00%
June 30, 2024 Guerrero Ramiro Director A Stock Options 5728 $0.00 5,728.0000 0 9999.99% 0.00%
June 30, 2024 CHAOUKI STEVEN M Director A Stock Options 5728 $0.00 5,728.0000 0 9999.99% 0.00%
June 30, 2024 Luput Cristian Director A Stock Options 5728 $0.00 5,728.0000 0 9999.99% 0.00%
June 30, 2024 Louie Ngar Yee Director A Stock Options 8592 $0.00 8,592.0000 0 9999.99% 0.00%
April 26, 2024 Himmelreich Jeffrey C Head of Finance A Stock Options 10000 $0.00 10,000.0000 0 9999.99% 0.00%
April 26, 2024 Vitoc Vlad Chief Executive Officer A Stock Options 200000 $0.00 200,000.0000 0 9999.99% 0.00%
April 26, 2024 Gryaznov Sergei Chief Scientific Officer A Stock Options 141000 $0.00 141,000.0000 0 9999.99% 0.00%
April 25, 2024 Smith Stan Director P Warrants 147492 $2.26 147,492.0000 0 9999.99% 0.00%
April 25, 2024 Smith Stan Director P Common Stock 147492 $2.03 1,005,060.0000 0 17.20% 0.00%
April 25, 2024 Louie Ngar Yee Director P Warrants 19665 $2.26 19,665.0000 0 9999.99% 0.00%
April 25, 2024 Louie Ngar Yee Director P Common Stock 19665 $2.03 1,167,189.0000 0 1.71% 0.00%
March 31, 2024 Smith Stan Director A Stock Options 11491 $0.00 11,491.0000 0 9999.99% 0.00%
March 31, 2024 Theagene Jean-Manasse Director A Stock Options 9193 $0.00 9,193.0000 0 9999.99% 0.00%
March 31, 2024 Luput Cristian Director A Stock Options 9193 $0.00 9,193.0000 0 9999.99% 0.00%
March 31, 2024 Guerrero Ramiro Director A Stock Options 9193 $0.00 9,193.0000 0 9999.99% 0.00%
March 31, 2024 CHAOUKI STEVEN M Director A Stock Options 9193 $0.00 9,193.0000 0 9999.99% 0.00%
March 31, 2024 Louie Ngar Yee Director A Stock Options 13790 $0.00 13,790.0000 0 9999.99% 0.00%
March 14, 2024 CHAOUKI STEVEN M Director P Warrants 34641 $1.30 34,641.0000 0 9999.99% 0.00%
March 14, 2024 CHAOUKI STEVEN M Director P Common Stock 34641 $1.17 88,891.0000 0 63.85% 0.00%
March 14, 2024 Louie Ngar Yee Director P Common Stock 170940 $1.17 1,147,524.0000 0 17.50% 0.00%
March 14, 2024 Smith Stan Director P Warrants 170940 $1.30 170,940.0000 0 9999.99% 0.00%
March 14, 2024 Smith Stan Director P Common Stock 170940 $1.17 857,568.0000 0 24.90% 0.00%
March 14, 2024 Luput Cristian Director P Warrants 69282 $1.30 69,282.0000 0 9999.99% 0.00%
March 14, 2024 Louie Ngar Yee Director P Warrants 170940 $1.30 170,940.0000 0 9999.99% 0.00%
March 14, 2024 Guerrero Ramiro Director P Warrants 6928 $1.30 6,928.0000 0 9999.99% 0.00%
March 14, 2024 Guerrero Ramiro Director P Common Stock 6928 $1.17 319,600.0400 0 2.22% 0.00%
March 14, 2024 Luput Cristian Director P Common Stock 69282 $1.17 367,350.0000 0 23.24% 0.00%
Jan. 24, 2024 Himmelreich Jeffrey C Head of Finance A Stock Options 10000 $0.00 10,000.0000 0 9999.99% 0.00%
Jan. 24, 2024 Vitoc Vlad Chief Executive Officer A Stock Options 200000 $0.00 200,000.0000 0 9999.99% 0.00%
Jan. 24, 2024 Gryaznov Sergei Chief Scientific Officer A Stock Options 100000 $0.00 100,000.0000 0 9999.99% 0.00%
Dec. 31, 2023 CHAOUKI STEVEN M Director A Stock Options 15418 $0.00 15,418.0000 0 9999.99% 0.00%
Dec. 31, 2023 Louie Ngar Yee Director A Stock Options 23127 $0.00 23,127.0000 0 9999.99% 0.00%
Dec. 31, 2023 Luput Cristian Director A Stock Options 15418 $0.00 15,418.0000 0 9999.99% 0.00%
Dec. 31, 2023 Smith Stan Director A Stock Options 19273 $0.00 19,273.0000 0 9999.99% 0.00%
Dec. 31, 2023 Theagene Jean-Manasse Director A Stock Options 15418 $0.00 15,418.0000 0 9999.99% 0.00%
Dec. 31, 2023 Guerrero Ramiro Director A Stock Options 15418 $0.00 15,418.0000 0 9999.99% 0.00%