United States Biotechnology & Medical Research

Maia Biotechnology Inc (MAIA)

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Maia Biotechnology Inc. has seen significant insider buying activity over the past 90 days, with three insiders purchasing shares totaling approximately $203,776. Notably, the CEO and Chief Scientific Officer participated in these acquisitions. This follows a period where the stock price declined by 10.1% and precedes the next scheduled earnings report in August 2026.
Ticker: MAIA Exchange: ASE
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Maia Biotechnology Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Buy 1 Jun 2026
Value US$2,169,971.94 | Price 418.56 | Shares 13,817 (-5.8%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-02 2026-06-01 B Purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
13,817 -5.8%
418.56
US$2,169,972 		13,817 -5.8% 418.56 US$2,169,972
2026-06-02 2026-06-01 B Purchase
3.5
Smith Stan
Non-Executive Director
91,815 +31.4%
325.72
US$1,737,475 		91,815 +31.4% 325.72 US$1,737,475
2026-06-02 2026-06-01 B Purchase
Gryaznov Sergei

Chief Scientific Officer

Officer
83,325 -38.9%
224.68
US$336,525 		83,325 -38.9% 224.68 US$336,525
2025-12-23 2025-12-22 B Purchase
3.1
CHAOUKI STEVEN M
Non-Executive Director
40,849 +36.8%
1.22
US$49,999 		40,849 +36.8% 1.22 US$49,999
2025-12-23 2025-12-22 B Purchase
3.5
Smith Stan
Non-Executive Director
57,189 +4.2%
1.22
US$69,999 		57,189 +4.2% 1.22 US$69,999
2025-12-23 2025-12-22 B Purchase
3.2
Louie Ngar Yee
Non-Executive Director
81,699 +7.0%
1.22
US$100,000 		81,699 +7.0% 1.22 US$100,000
2025-12-09 2025-12-05 B Purchase
3.5
Smith Stan
Non-Executive Director
4,580 +inf%
1.20
US$5,496 		4,580 +inf% 1.20 US$5,496
2025-12-09 2025-12-05 B Purchase
3.5
Smith Stan
Non-Executive Director
4,580 +inf%
1.19
US$5,450 		4,580 +inf% 1.19 US$5,450
2025-12-09 2025-12-05 B Purchase
3.5
Smith Stan
Non-Executive Director
4,580 +inf%
1.20
US$5,495 		4,580 +inf% 1.20 US$5,495
2025-12-01 2025-11-28 B Purchase
3.6
Luput Cristian
Non-Executive Director
18,145 +4.3%
1.11
US$20,230 		18,145 +4.3% 1.11 US$20,230
2025-12-01 2025-11-28 B Purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
50,000 +6.0%
1.14
US$56,830 		50,000 +6.0% 1.14 US$56,830
2025-12-01 2025-11-26 B Purchase
3.6
Luput Cristian
Non-Executive Director
20,000 +5.0%
1.08
US$21,616 		20,000 +5.0% 1.08 US$21,616
2025-12-01 2025-11-26 B Purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
22,000 +2.6%
1.05
US$23,019 		22,000 +2.6% 1.05 US$23,019
2025-12-01 2025-11-26 B Purchase
3.5
Smith Stan
Non-Executive Director
15,000 +1.1%
1.04
US$15,582 		15,000 +1.1% 1.04 US$15,582
2025-11-28 2025-11-25 B Purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
10,500 +1.3%
0.97
US$10,144 		10,500 +1.3% 0.97 US$10,144
2025-11-28 2025-11-25 B Purchase
3.6
Luput Cristian
Non-Executive Director
10,000 +2.6%
0.98
US$9,785 		10,000 +2.6% 0.98 US$9,785
2025-11-26 2025-11-25 B Purchase
3.5
Smith Stan
Non-Executive Director
15,000 +1.1%
0.98
US$14,700 		15,000 +1.1% 0.98 US$14,700
2025-11-26 2025-11-24 B Purchase
3.5
Smith Stan
Non-Executive Director
10,000 +0.8%
0.99
US$9,900 		10,000 +0.8% 0.99 US$9,900
2025-11-25 2025-11-24 B Purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
10,000 +1.2%
0.99
US$9,891 		10,000 +1.2% 0.99 US$9,891
2025-11-25 2025-11-21 B Purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
1,800 +0.2%
0.92
US$1,656 		1,800 +0.2% 0.92 US$1,656
2025-10-02 2025-10-01 B Purchase
3.5
Smith Stan
Non-Executive Director
19,230 +1.5%
1.30
US$24,999 		19,230 +1.5% 1.30 US$24,999
2025-06-05 2025-06-03 B Purchase
3.5
Smith Stan
Non-Executive Director
33,333 +2.6%
1.50
US$50,000 		33,333 +2.6% 1.50 US$50,000
2025-05-12 2025-05-08 B Purchase
3.5
Smith Stan
Non-Executive Director
66,666 +5.5%
1.50
US$99,999 		66,666 +5.5% 1.50 US$99,999
2025-05-12 2025-05-08 B Purchase
2.6
Guerrero Ramiro
Non-Executive Director
20,000 +3.5%
1.50
US$30,000 		20,000 +3.5% 1.50 US$30,000
2025-03-05 2025-03-03 B Purchase
2.6
Guerrero Ramiro
Non-Executive Director
33,333 +6.2%
1.50
US$50,000 		33,333 +6.2% 1.50 US$50,000
2025-03-05 2025-03-03 B Purchase
3.5
Smith Stan
Non-Executive Director
25,000 +2.1%
1.50
US$37,500 		25,000 +2.1% 1.50 US$37,500
2025-02-25 2025-02-24 B Purchase
2.6
Guerrero Ramiro
Non-Executive Director
73,333 +15.9%
1.50
US$110,000 		73,333 +15.9% 1.50 US$110,000
2025-02-25 2025-02-24 B Purchase
3.5
Smith Stan
Non-Executive Director
50,000 +4.4%
1.50
US$75,000 		50,000 +4.4% 1.50 US$75,000
2024-12-13 2024-12-13 B Purchase
2.6
Guerrero Ramiro
Non-Executive Director
53,418 +11.6%
1.87
US$99,998 		53,418 +11.6% 1.87 US$99,998
2024-12-13 2024-12-13 B Purchase
3.5
Smith Stan
Non-Executive Director
25,000 +2.3%
1.87
US$46,800 		25,000 +2.3% 1.87 US$46,800
2024-11-04 2024-11-01 B Purchase
3.1
CHAOUKI STEVEN M
Non-Executive Director
22,133 +24.9%
2.51
US$55,554 		22,133 +24.9% 2.51 US$55,554
2024-11-04 2024-11-01 B Purchase
3.5
Smith Stan
Non-Executive Director
100,000 +11.7%
2.51
US$251,000 		100,000 +11.7% 2.51 US$251,000
2024-11-04 2024-11-01 B Purchase
2.6
Guerrero Ramiro
Non-Executive Director
88,534 +27.7%
2.51
US$222,220 		88,534 +27.7% 2.51 US$222,220
2024-11-04 2024-11-01 B Purchase
3.6
Luput Cristian
Non-Executive Director
22,133 +6.0%
2.51
US$55,554 		22,133 +6.0% 2.51 US$55,554
2024-04-26 2024-04-25 B Purchase
3.5
Smith Stan
Non-Executive Director
147,492 +17.2%
2.03
US$299,409 		147,492 +17.2% 2.03 US$299,409
2024-04-26 2024-04-25 B Purchase
3.2
Louie Ngar Yee
Non-Executive Director
19,665 +1.7%
2.03
US$39,920 		19,665 +1.7% 2.03 US$39,920
2024-03-18 2024-03-14 B Purchase
3.1
CHAOUKI STEVEN M
Non-Executive Director
34,641 +63.9%
1.17
US$40,530 		34,641 +63.9% 1.17 US$40,530
2024-03-15 2024-03-14 B Purchase
2.6
Guerrero Ramiro
Non-Executive Director
6,928 +2.2%
1.17
US$8,106 		6,928 +2.2% 1.17 US$8,106
2024-03-15 2024-03-14 B Purchase
3.6
Luput Cristian
Non-Executive Director
69,282 +23.2%
1.17
US$81,060 		69,282 +23.2% 1.17 US$81,060
2024-03-15 2024-03-14 B Purchase
3.5
Smith Stan
Non-Executive Director
170,940 +24.9%
1.17
US$200,000 		170,940 +24.9% 1.17 US$200,000
2024-03-15 2024-03-14 B Purchase
3.2
Louie Ngar Yee
Non-Executive Director
170,940 +17.5%
1.17
US$200,000 		170,940 +17.5% 1.17 US$200,000
2024-01-19 2024-01-19 PrS Proposed sale
Obrocea Mihail

Former director

Non-Executive Director
26,100
1.28
US$33,408 		26,100 1.28 US$33,408
2023-05-22 2023-05-18 PP Planned purchase
2.6
Guerrero Ramiro
Non-Executive Director
1,200 +0.4%
2.47
US$2,964 		1,200 +0.4% 2.47 US$2,964
2023-05-17 2023-05-15 PP Planned purchase
3.6
Luput Cristian
Non-Executive Director
3,000 +1.0%
2.63
US$7,890 		3,000 +1.0% 2.63 US$7,890
2023-05-01 2023-04-28 PP Planned purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
4,000 +0.5%
2.50
US$10,000 		4,000 +0.5% 2.50 US$10,000
2023-04-28 2023-04-27 B Purchase
2.6
Guerrero Ramiro
Non-Executive Director
8,500 +2.8%
2.25
US$19,125 		8,500 +2.8% 2.25 US$19,125
2023-04-28 2023-04-27 B Purchase
3.2
Louie Ngar Yee
Non-Executive Director
48,000 +5.2%
2.25
US$108,000 		48,000 +5.2% 2.25 US$108,000
2023-04-28 2023-04-27 B Purchase
2.2
MCGUIRE JOSEPH F

Chief Financial Officer

Officer
4,400 +88.0%
2.25
US$9,900 		4,400 +88.0% 2.25 US$9,900
2023-04-28 2023-04-27 B Purchase
3.5
Smith Stan
Non-Executive Director
133,300 +24.1%
2.25
US$299,925 		133,300 +24.1% 2.25 US$299,925
2023-04-21 2023-04-20 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
10,000 +1.8%
3.74
US$37,400 		10,000 +1.8% 3.74 US$37,400
2023-04-19 2023-04-18 PP Planned purchase
2.6
Guerrero Ramiro
Non-Executive Director
1,263 +0.4%
4.17
US$5,267 		1,263 +0.4% 4.17 US$5,267
2023-04-18 2023-04-17 PP Planned purchase
3.6
Luput Cristian
Non-Executive Director
1,576 +0.5%
3.69
US$5,815 		1,576 +0.5% 3.69 US$5,815
2023-04-17 2023-04-14 PP Planned purchase
3.6
Luput Cristian
Non-Executive Director
802 +0.3%
3.58
US$2,871 		802 +0.3% 3.58 US$2,871
2023-04-17 2023-04-13 PP Planned purchase
3.6
Luput Cristian
Non-Executive Director
622 +0.2%
3.62
US$2,252 		622 +0.2% 3.62 US$2,252
2023-04-05 2023-04-04 PP Planned purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
925 +0.1%
3.56
US$3,293 		925 +0.1% 3.56 US$3,293
2023-04-05 2023-04-03 PP Planned purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
1,375 +0.2%
3.50
US$4,812 		1,375 +0.2% 3.50 US$4,812
2023-04-03 2023-03-31 PP Planned purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
1,495 +0.2%
3.46
US$5,173 		1,495 +0.2% 3.46 US$5,173
2023-04-03 2023-03-30 PP Planned purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
205 +0.0%
3.43
US$703 		205 +0.0% 3.43 US$703
2023-03-28 2023-03-24 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
938 +0.2%
3.49
US$3,274 		938 +0.2% 3.49 US$3,274
2023-03-24 2023-03-23 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
1,862 +0.3%
3.43
US$6,387 		1,862 +0.3% 3.43 US$6,387
2023-03-24 2023-03-22 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
1,458 +0.3%
3.18
US$4,636 		1,458 +0.3% 3.18 US$4,636
2023-03-22 2023-03-21 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
2,736 +0.5%
3.17
US$8,673 		2,736 +0.5% 3.17 US$8,673
2023-03-22 2023-03-20 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
3,006 +0.6%
3.28
US$9,860 		3,006 +0.6% 3.28 US$9,860
2023-03-20 2023-03-16 PP Planned purchase
2.6
Guerrero Ramiro
Non-Executive Director
1,333 +0.4%
3.64
US$4,852 		1,333 +0.4% 3.64 US$4,852
2023-03-14 2023-03-13 PP Planned purchase
3.6
Luput Cristian
Non-Executive Director
3,000 +1.0%
4.07
US$12,210 		3,000 +1.0% 4.07 US$12,210
2023-03-14 2023-03-10 PP Planned purchase
3.6
Luput Cristian
Non-Executive Director
5,382 +1.9%
3.99
US$21,474 		5,382 +1.9% 3.99 US$21,474
2023-03-13 2023-03-10 PP Planned purchase
2.6
Guerrero Ramiro
Non-Executive Director
443 +0.1%
3.98
US$1,763 		443 +0.1% 3.98 US$1,763
2023-03-13 2023-03-09 PP Planned purchase
2.6
Guerrero Ramiro
Non-Executive Director
1,057 +0.4%
3.98
US$4,207 		1,057 +0.4% 3.98 US$4,207
2023-03-13 2023-03-09 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
3,582 +0.7%
4.03
US$14,435 		3,582 +0.7% 4.03 US$14,435
2023-03-10 2023-03-09 PP Planned purchase
3.6
Luput Cristian
Non-Executive Director
2,114 +0.8%
3.98
US$8,414 		2,114 +0.8% 3.98 US$8,414
2023-03-10 2023-03-08 PP Planned purchase
3.6
Luput Cristian
Non-Executive Director
627 +0.2%
4.22
US$2,646 		627 +0.2% 4.22 US$2,646
2023-03-09 2023-03-08 PP Planned purchase
3.7
Vitoc Vlad

Chief Executive Officer

Executive Director Large shareholder
1,581 +0.2%
4.21
US$6,656 		1,581 +0.2% 4.21 US$6,656
2023-03-09 2023-03-08 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
3,076 +0.6%
4.20
US$12,919 		3,076 +0.6% 4.20 US$12,919
2023-03-09 2023-03-07 PP Planned purchase
3.5
Smith Stan
Non-Executive Director
1,961 +0.4%
4.23
US$8,295 		1,961 +0.4% 4.23 US$8,295
2023-03-08 2023-03-07 PP Planned purchase
2.6
Guerrero Ramiro
Non-Executive Director
871 +0.3%
4.25
US$3,702 		871 +0.3% 4.25 US$3,702
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