Vitoc Vlad
Chief Executive Officer
PurchaseAlert
- Shares
- 73,000
- Price
- $1.37
- Value
- $100,010
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•59 filings
MAIA
MAIA Biotechnology, Inc.
Net purchases of $352.3K over the last 3 months
2 buyers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found 7 CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
+$352,317
2 buyers · 0 sellers
12-month purchases
$1,230,327
7 distinct insiders
12-month sales
$0.00
0 distinct insiders
Highlighted alerts
33
0 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
7 executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
70
Raw transactions
Everything returned by the filing
33
Voluntary view
P/S trades after deterministic checks
37
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- A
- Shares
- 32,012
- Price
- $0.00
- Footnotes
- 1
The stock options, granted on September 30, 2026 pursuant to the MAIA Biotechnology, Inc's 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest 100% on the date of the grant and are exercisable beginning as of that date.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Guerrero Ramiro
Director
PurchaseAlert
- Shares
- 37,595
- Price
- $1.32
- Value
- $49,516
Guerrero Ramiro
Director
PurchaseAlert
- Shares
- 46,620
- Price
- $1.35
- Value
- $62,937
Guerrero Ramiro
Director
PurchaseAlert
- Shares
- 78,239
- Price
- $1.39
- Value
- $108,752
Guerrero Ramiro
Director
PurchaseAlert
- Shares
- 8,931
- Price
- $1.39
- Value
- $12,414
Guerrero Ramiro
Director
PurchaseAlert
- Shares
- 1,794
- Price
- $1.33
- Value
- $2,386
Guerrero Ramiro
Director
PurchaseAlert
- Shares
- 11,899
- Price
- $1.37
- Value
- $16,302
Vitoc Vlad
Chief Executive Officer
PurchaseAlert
- Shares
- 72,700
- Price
- $1.39
- Value
- $100,886
Smith Stan
Director
PurchaseAlert
- Shares
- 75,000
- Price
- $1.34
- Value
- $100,200
Gryaznov Sergei
Chief Scientific Officer
PurchaseAlert
- Shares
- 2,000
- Price
- $1.35
- Value
- $2,690
Smith Stan
Director
PurchaseAlert
- Shares
- 57,189
- Price
- $1.22
- Value
- $69,999
Smith Stan
Director
PurchaseAlert
- Shares
- 57,189
- Price
- $1.36
- Value
- $77,777
CHAOUKI STEVEN M
Director
PurchaseAlert
- Shares
- 40,849
- Price
- $1.22
- Value
- $49,999
CHAOUKI STEVEN M
Director
PurchaseAlert
- Shares
- 40,849
- Price
- $1.36
- Value
- $55,555
Louie Ngar Yee
Director
PurchaseAlert
- Shares
- 81,699
- Price
- $1.22
- Value
- $100,000
Louie Ngar Yee
Director
PurchaseAlert
- Shares
- 81,699
- Price
- $1.36
- Value
- $111,111
Smith Stan
Director
PurchaseAlert
- Shares
- 4,580
- Price
- $1.20
- Value
- $5,496
Smith Stan
Director
PurchaseAlert
- Shares
- 4,580
- Price
- $1.19
- Value
- $5,450
Smith Stan
Director
PurchaseAlert
- Shares
- 4,580
- Price
- $1.20
- Value
- $5,495
Vitoc Vlad
Chief Executive Officer
PurchaseAlert
- Shares
- 50,000
- Price
- $1.14
- Value
- $56,830
Luput Cristian
Director
PurchaseAlert
- Shares
- 18,145
- Price
- $1.11
- Value
- $20,230
Vitoc Vlad
Chief Executive Officer
PurchaseAlert
- Shares
- 22,000
- Price
- $1.05
- Value
- $23,019
Luput Cristian
Director
PurchaseAlert
- Shares
- 20,000
- Price
- $1.08
- Value
- $21,616
Smith Stan
Director
PurchaseAlert
- Shares
- 15,000
- Price
- $1.04
- Value
- $15,582
Vitoc Vlad
Chief Executive Officer
PurchaseAlert
- Shares
- 10,500
- Price
- $0.97
- Value
- $10,144
Luput Cristian
Director
PurchaseAlert
- Shares
- 10,000
- Price
- $0.98
- Value
- $9,785
Smith Stan
Director
PurchaseAlert
- Shares
- 15,000
- Price
- $0.98
- Value
- $14,700
Smith Stan
Director
PurchaseAlert
- Shares
- 10,000
- Price
- $0.99
- Value
- $9,900
Vitoc Vlad
Chief Executive Officer
PurchaseAlert
- Shares
- 10,000
- Price
- $0.99
- Value
- $9,891
Vitoc Vlad
Chief Executive Officer
PurchaseAlert
- Shares
- 1,800
- Price
- $0.92
- Value
- $1,656
Smith Stan
Director
PurchaseAlert
- Shares
- 19,230
- Price
- $1.30
- Value
- $24,999
Smith Stan
Director
PurchaseAlert
- Shares
- 19,230
- Price
- $1.57
- Value
- $30,191
Smith Stan
Director
PurchaseAlert
- Shares
- 2,700
- Price
- $3.69
- Value
- $9,959
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Sep 14, 2026 | Vitoc Vlad Chief Executive Officer | Purchase | 73,000 | $1.37 | $100,010 | |
| Sep 10, 2026 | Guerrero Ramiro Director | Purchase | 37,595 | $1.32 | $49,516 | |
| Aug 28, 2026 | Guerrero Ramiro Director | Purchase | 46,620 | $1.35 | $62,937 | |
| Aug 27, 2026 | Guerrero Ramiro Director | Purchase | 78,239 | $1.39 | $108,752 | |
| Aug 26, 2026 | Guerrero Ramiro Director | Purchase | 8,931 | $1.39 | $12,414 | |
| Aug 24, 2026 | Guerrero Ramiro Director | Purchase | 1,794 | $1.33 | $2,386 | |
| Aug 20, 2026 | Guerrero Ramiro Director | Purchase | 11,899 | $1.37 | $16,302 | |
| Jun 01, 2026 | Vitoc Vlad Chief Executive Officer | Purchase | 72,700 | $1.39 | $100,886 | |
| Jun 01, 2026 | Smith Stan Director | Purchase | 75,000 | $1.34 | $100,200 | |
| Jun 01, 2026 | Gryaznov Sergei Chief Scientific Officer | Purchase | 2,000 | $1.35 | $2,690 | |
| Dec 22, 2025 | Smith Stan Director | Purchase | 57,189 | $1.22 | $69,999 | |
| Dec 22, 2025 | Smith Stan Director | Purchase | 57,189 | $1.36 | $77,777 | |
| Dec 22, 2025 | CHAOUKI STEVEN M Director | Purchase | 40,849 | $1.22 | $49,999 | |
| Dec 22, 2025 | CHAOUKI STEVEN M Director | Purchase | 40,849 | $1.36 | $55,555 | |
| Dec 22, 2025 | Louie Ngar Yee Director | Purchase | 81,699 | $1.22 | $100,000 | |
| Dec 22, 2025 | Louie Ngar Yee Director | Purchase | 81,699 | $1.36 | $111,111 | |
| Dec 05, 2025 | Smith Stan Director | Purchase | 4,580 | $1.20 | $5,496 | |
| Dec 05, 2025 | Smith Stan Director | Purchase | 4,580 | $1.19 | $5,450 | |
| Dec 05, 2025 | Smith Stan Director | Purchase | 4,580 | $1.20 | $5,495 | |
| Nov 28, 2025 | Vitoc Vlad Chief Executive Officer | Purchase | 50,000 | $1.14 | $56,830 | |
| Nov 28, 2025 | Luput Cristian Director | Purchase | 18,145 | $1.11 | $20,230 | |
| Nov 26, 2025 | Vitoc Vlad Chief Executive Officer | Purchase | 22,000 | $1.05 | $23,019 | |
| Nov 26, 2025 | Luput Cristian Director | Purchase | 20,000 | $1.08 | $21,616 | |
| Nov 26, 2025 | Smith Stan Director | Purchase | 15,000 | $1.04 | $15,582 | |
| Nov 25, 2025 | Vitoc Vlad Chief Executive Officer | Purchase | 10,500 | $0.97 | $10,144 | |
| Nov 25, 2025 | Luput Cristian Director | Purchase | 10,000 | $0.98 | $9,785 | |
| Nov 25, 2025 | Smith Stan Director | Purchase | 15,000 | $0.98 | $14,700 | |
| Nov 24, 2025 | Smith Stan Director | Purchase | 10,000 | $0.99 | $9,900 | |
| Nov 24, 2025 | Vitoc Vlad Chief Executive Officer | Purchase | 10,000 | $0.99 | $9,891 | |
| Nov 21, 2025 | Vitoc Vlad Chief Executive Officer | Purchase | 1,800 | $0.92 | $1,656 | |
| Oct 01, 2025 | Smith Stan Director | Purchase | 19,230 | $1.30 | $24,999 | |
| Oct 01, 2025 | Smith Stan Director | Purchase | 19,230 | $1.57 | $30,191 | |
| Sep 19, 2022 | Smith Stan Director | Purchase | 2,700 | $3.69 | $9,959 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.