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MAIA

MAIA Biotechnology, Inc.

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Tapewire entity
6919
SEC CIK
0001878313
Parsed reports
248

Last 12 months

Inside the activity.

30 purchase rows · 0 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 2025140
Dec 202560
Jan 202600
Feb 202600
Mar 202600
Apr 202600
May 202600
Jun 202630
Jul 202600
Aug 202650
Sep 202620
Oct 202600

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
November 28, 2025 Filed Dec 1, 2025 11:18 UTC PurchaseCommon Stock 18,145 $1.11 $20,229.86
Disclosure

SEC source: 0001878313-25-000054 · form4.xml · nonDerivative · entry 2

Luput Cristian · CIK 0001913350 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 437,628

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.1147 to $1.1192, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

Read SEC document
November 28, 2025 Filed Dec 4, 2025 12:30 UTC Amendment
Vitoc VladDirector · Chief Executive Officer · 10% owner
PurchaseCommon Stock 50,000 $1.14 $56,830.00
Disclosure

SEC source: 0001878313-25-000059 · form4a.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 903,421

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.1283 to $1.1416, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

F3 · balance_after: The original Form 4 filed on December 1, 2025 had the incorrect total share balance owned by Vlad Vitoc. This Amended Form 4 is now reflecting the correct share balance owned.

Read SEC document
November 26, 2025 Filed Dec 1, 2025 11:20 UTC
Vitoc VladDirector · Chief Executive Officer · 10% owner
PurchaseCommon Stock 22,000 $1.05 $23,018.60
Disclosure

SEC source: 0001878313-25-000056 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 853,421

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.0145 to $1.0587, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

Read SEC document
November 26, 2025 Filed Dec 1, 2025 11:18 UTC PurchaseCommon Stock 20,000 $1.08 $21,616.00
Disclosure

SEC source: 0001878313-25-000054 · form4.xml · nonDerivative · entry 1

Luput Cristian · CIK 0001913350 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 419,483

Read SEC document
November 26, 2025 Filed Dec 1, 2025 11:14 UTC
Smith StanDirector
PurchaseCommon Stock 15,000 $1.04 $15,582.00
Disclosure

SEC source: 0001878313-25-000052 · form4.xml · nonDerivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,364,289

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.03 to $1.051, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

F2 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
November 26, 2025 Filed Dec 4, 2025 12:30 UTC Amendment
Vitoc VladDirector · Chief Executive Officer · 10% owner
PurchaseCommon Stock 22,000 $1.05 $23,018.60
Disclosure

SEC source: 0001878313-25-000059 · form4a.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 853,421

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.0145 to $1.0587, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

Read SEC document
November 25, 2025 Filed Nov 26, 2025 21:43 UTC
Smith StanDirector
PurchaseCommon Stock 15,000 $0.98 $14,700.00
Disclosure

SEC source: 0001878313-25-000045 · form4.xml · nonDerivative · entry 2

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,349,289

F3 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.9550 to $1.05, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

F2 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
November 25, 2025 Filed Nov 28, 2025 11:48 UTC
Vitoc VladDirector · Chief Executive Officer · 10% owner
PurchaseCommon Stock 10,500 $0.97 $10,144.05
Disclosure

SEC source: 0001878313-25-000047 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 831,421

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.9606 to $0.9745, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

Read SEC document
November 25, 2025 Filed Nov 28, 2025 11:52 UTC PurchaseCommon Stock 10,000 $0.98 $9,785.00
Disclosure

SEC source: 0001878313-25-000050 · form4.xml · nonDerivative · entry 1

Luput Cristian · CIK 0001913350 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 399,483

Read SEC document
November 25, 2025 Filed Dec 4, 2025 12:31 UTC Amendment
Vitoc VladDirector · Chief Executive Officer · 10% owner
PurchaseCommon Stock 10,500 $0.97 $10,144.05
Disclosure

SEC source: 0001878313-25-000060 · form4a.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 831,421

Read SEC document
November 24, 2025 Filed Nov 25, 2025 21:15 UTC
Vitoc VladDirector · Chief Executive Officer · 10% owner
PurchaseCommon Stock 10,000 $0.99 $9,891.00
Disclosure

SEC source: 0001878313-25-000040 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 820,921

Read SEC document
November 24, 2025 Filed Nov 26, 2025 21:43 UTC
Smith StanDirector
PurchaseCommon Stock 10,000 $0.99 $9,900.00
Disclosure

SEC source: 0001878313-25-000045 · form4.xml · nonDerivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,334,289

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.9675 to $0.9899, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

F2 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
November 21, 2025 Filed Nov 25, 2025 21:15 UTC
Vitoc VladDirector · Chief Executive Officer · 10% owner
PurchaseCommon Stock 1,800 $0.92 $1,656.00
Disclosure

SEC source: 0001878313-25-000040 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 810,921

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.9128 to $0.9235, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

Read SEC document
October 02, 2025 Filed Oct 6, 2025 20:33 UTC
Smith StanDirector
GrantStock Options · Derivative 24,844 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001878313-25-000037 · form4.xml · derivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,844

Underlying: Common Stock · 24,844 shares

Expires 2035-10-02

F1 · derivative.exercise_date: The stock options, granted on October 2, 2025, 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.

F2 · ownership.direct: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
October 02, 2025 Filed Oct 6, 2025 20:29 UTC GrantStock Options · Derivative 20,459 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001878313-25-000035 · form4.xml · derivative · entry 1

Theagene Jean-Manasse · CIK 0001969857 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,459

Underlying: Common Stock · 20,459 shares

Expires 2035-10-02

F1 · derivative.exercise_date: The stock options, granted on October 2, 2025, 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.

Read SEC document
October 02, 2025 Filed Oct 6, 2025 20:26 UTC GrantStock Options · Derivative 21,434 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001878313-25-000033 · form4.xml · derivative · entry 1

Luput Cristian · CIK 0001913350 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,434

Underlying: Common Stock · 21,434 shares

Expires 2035-10-02

F1 · derivative.exercise_date: The stock options, granted on October 2, 2025, 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.

Read SEC document
October 02, 2025 Filed Oct 6, 2025 20:24 UTC GrantStock Options · Derivative 25,331 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001878313-25-000031 · form4.xml · derivative · entry 1

Louie Ngar Yee · CIK 0001913264 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,331

Underlying: Common Stock · 25,331 shares

Expires 2035-10-02

F1 · derivative.exercise_date: The stock options, granted on October 2, 2025, 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.

Read SEC document
October 02, 2025 Filed Oct 6, 2025 20:23 UTC GrantStock Options · Derivative 20,459 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001878313-25-000029 · form4.xml · derivative · entry 1

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,459

Underlying: Common Stock · 20,459 shares

Expires 2035-10-02

F1 · derivative.exercise_date: The stock options, granted on October 2, 2025, 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.

Read SEC document
October 02, 2025 Filed Oct 6, 2025 20:21 UTC GrantStock Options · Derivative 20,946 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001878313-25-000027 · form4.xml · derivative · entry 1

CHAOUKI STEVEN M · CIK 0001776865 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,946

Underlying: Common Stock · 20,946 shares

Expires 2035-10-02

F1 · derivative.exercise_date: The stock options, granted on October 2, 2025, 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.

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:51 UTC
Smith StanDirector
PurchaseWarrants · Derivative 19,230 $1.57 Strike: $1.57 $30,191.10
Disclosure

SEC source: 0001878313-25-000019 · form4.xml · derivative · entry 2

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 19,230

Underlying: Common Stock · 19,230 shares

Expires 2028-10-01

F3 · shares: These warrants were purchased pursuant to a Securities Purchase Agreement and were deemed options under the Issuer's 2021 Equity Incentive Plan on October 1, 2025. The options are exercisable beginning on the six-month anniversary of the issuance date and expire 3-years after the initial issuance date.

F4 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:51 UTC
Smith StanDirector
PurchaseCommon Stock 19,230 $1.30 $24,999.00
Disclosure

SEC source: 0001878313-25-000019 · form4.xml · nonDerivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,324,289

F1 · shares: The common stock was purchased pursuant to a Securities Purchase Agreement and were issued under the Issuer's 2021 Equity Incentive Plan on October 1, 2025

F2 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:17 UTC GrantStock Options · Derivative 20,380 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001127602-25-018658 · form4.xml · derivative · entry 1

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,380

Underlying: Common Stock · 20,380 shares

Expires 2035-06-30

F1 · derivative.exercise_date: The stock options, granted on June 30, 2025 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.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:16 UTC GrantStock Options · Derivative 20,865 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001127602-25-018656 · form4.xml · derivative · entry 1

CHAOUKI STEVEN M · CIK 0001776865 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,865

Underlying: Common Stock · 20,865 shares

Expires 2035-06-30

F1 · derivative.exercise_date: The stock options, granted on June 30, 2025 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.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:16 UTC GrantStock Options · Derivative 25,232 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001127602-25-018655 · form4.xml · derivative · entry 1

Louie Ngar Yee · CIK 0001913264 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,232

Underlying: Common Stock · 25,232 shares

Expires 2035-06-30

F1 · derivative.exercise_date: The stock options, granted on June 30, 2025 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.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:14 UTC
Smith StanDirector
GrantStock Options · Derivative 24,747 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001127602-25-018653 · form4.xml · derivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 24,747

Underlying: Common Stock · 24,747 shares

Expires 2035-06-30

F1 · derivative.exercise_date: The stock options, granted on June 30, 2025 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.

F2 · ownership.direct: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:13 UTC GrantStock Options · Derivative 21,350 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001127602-25-018651 · form4.xml · derivative · entry 1

Luput Cristian · CIK 0001913350 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,350

Underlying: Common Stock · 21,350 shares

Expires 2035-06-30

F1 · derivative.exercise_date: The stock options, granted on June 30, 2025 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.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:13 UTC GrantStock Options · Derivative 20,380 $0.00 Strike: $1.80 $0.00
Disclosure

SEC source: 0001127602-25-018648 · form4.xml · derivative · entry 1

Theagene Jean-Manasse · CIK 0001969857 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,380

Underlying: Common Stock · 20,380 shares

Expires 2035-06-30

F1 · derivative.exercise_date: The stock options, granted on June 30, 2025 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.

Read SEC document
June 03, 2025 Filed Jun 5, 2025 20:42 UTC
Smith StanDirector
PurchaseWarrants · Derivative 33,333 $1.71 Strike: $1.71 $56,999.43
Disclosure

SEC source: 0001127602-25-016869 · form4.xml · derivative · entry 2

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 33,333

Underlying: Common Stock · 33,333 shares

Expires 2030-06-03

F3 · shares: These warrants were purchased pursuant to a Securities Purchase Agreement and were deemed options under the Issuer's 2021 Equity Incentive Plan on June 3, 2025. The options are exercisable beginning on the six-month anniversary of the issuance date and expire 5-years after the initial issuance date.

F4 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust dated 1993.

Read SEC document
June 03, 2025 Filed Jun 5, 2025 20:42 UTC
Smith StanDirector
PurchaseCommon Stock 33,333 $1.50 $49,999.50
Disclosure

SEC source: 0001127602-25-016869 · form4.xml · nonDerivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,305,059

F1 · shares: The common stock was purchased pursuant to a Securities Purchase Agreement and were issued under the Issuer's 2021 Equity Incentive Plan on June 3, 2025.

F2 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
May 14, 2025 Filed May 16, 2025 20:14 UTC
Gryaznov SergeiChief Scientific Officer
GrantStock Options · Derivative 200,000 $0.00 Strike: $1.76 $0.00
Disclosure

SEC source: 0001127602-25-014669 · form4.xml · derivative · entry 1

Gryaznov Sergei · CIK 0001913228 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 shares

Expires 2035-05-14

F1 · derivative.exercise_date: The stock options, granted on May 14, 2025 pursuant to MAIA Biotechnology, Inc.'s 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary of the date of the grant and the remaining options to vest ratably monthly thereafter for 36 months.

Read SEC document
May 14, 2025 Filed May 16, 2025 20:15 UTC
Vitoc VladDirector · Chief Executive Officer · 10% owner
GrantStock Options · Derivative 400,000 $0.00 Strike: $1.76 $0.00
Disclosure

SEC source: 0001127602-25-014670 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 400,000

Underlying: Common Stock · 400,000 shares

Expires 2035-05-14

F1 · derivative.exercise_date: The stock options, granted on May 14, 2025 pursuant to MAIA Biotechnology, Inc.'s 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary of the date of the grant and the remaining options to vest ratably monthly thereafter for 36 months.

Read SEC document
May 14, 2025 Filed May 16, 2025 20:13 UTC
Himmelreich Jeffrey CHead of Finance
GrantStock Options · Derivative 40,000 $0.00 Strike: $1.76 $0.00
Disclosure

SEC source: 0001127602-25-014667 · form4.xml · derivative · entry 1

Himmelreich Jeffrey C · CIK 0002001189 · Head of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2035-05-14

F1 · derivative.exercise_date: The stock options, granted on May 14, 2025 pursuant to MAIA Biotechnology, Inc.'s 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary of the date of the grant and the remaining options to vest ratably monthly thereafter for 36 months.

Read SEC document
May 08, 2025 Filed May 12, 2025 20:14 UTC PurchaseWarrants · Derivative 20,000 $2.05 Strike: $2.05 $41,000.00
Disclosure

SEC source: 0001127602-25-013965 · form4.xml · derivative · entry 2

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2031-05-08

F2 · shares: These warrants were purchased pursuant to a Securities Purchase Agreement and were deemed options under the Issuer's 2021 Equity Incentive Plan on May 8, 2025. The options are exercisable beginning on the one-year anniversary of the issuance date and expire 6-years after the initial issuance date.

Read SEC document
May 08, 2025 Filed May 12, 2025 20:14 UTC PurchaseCommon Stock 20,000 $1.50 $30,000.00
Disclosure

SEC source: 0001127602-25-013965 · form4.xml · nonDerivative · entry 1

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 588,218

F1 · shares: The common stock was purchased pursuant to a Securities Purchase Agreement and were issued under the Issuer's 2021 Equity Incentive Plan on May 8, 2025.

Read SEC document
May 08, 2025 Filed May 12, 2025 20:12 UTC
Smith StanDirector
PurchaseWarrants · Derivative 66,666 $2.05 Strike: $2.05 $136,665.30
Disclosure

SEC source: 0001127602-25-013963 · form4.xml · derivative · entry 2

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 66,666

Underlying: Common Stock · 66,666 shares

Expires 2031-05-08

F3 · shares: These warrants were purchased pursuant to a Securities Purchase Agreement and were deemed options under the Issuer's 2021 Equity Incentive Plan on May 8, 2025. The options are exercisable beginning on the one-year anniversary of the issuance date and expire 6-years after the initial issuance date.

F4 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
May 08, 2025 Filed May 12, 2025 20:12 UTC
Smith StanDirector
PurchaseCommon Stock 66,666 $1.50 $99,999.00
Disclosure

SEC source: 0001127602-25-013963 · form4.xml · nonDerivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,271,726

F1 · shares: The common stock was purchased pursuant to a Securities Purchase Agreement and were issued under the Issuer's 2021 Equity Incentive Plan on March 8, 2025.

F2 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

Read SEC document
April 04, 2025 Filed Apr 8, 2025 20:49 UTC
Smith StanDirector
GrantStock Options · Derivative 24,800 $0.00 Strike: $1.50 $0.00
Disclosure

SEC source: 0001127602-25-011819 · form4.xml · derivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,800

Underlying: Common Stock · 24,800 shares

Expires 2035-04-04

F1 · derivative.exercise_date: The stock options, granted on April 4, 2025 pursuant to 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.

F2 · ownership.nature: These securities are benefically owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

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April 04, 2025 Filed Apr 8, 2025 20:47 UTC GrantStock Options · Derivative 20,667 $0.00 Strike: $1.50 $0.00
Disclosure

SEC source: 0001127602-25-011817 · form4.xml · derivative · entry 1

CHAOUKI STEVEN M · CIK 0001776865 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,667

Underlying: Common Stock · 20,667 shares

Expires 2035-04-04

F1 · derivative.exercise_date: The stock options, granted on April 4, 2025 pursuant to 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.

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April 04, 2025 Filed Apr 8, 2025 20:45 UTC GrantStock Options · Derivative 20,291 $0.00 Strike: $1.50 $0.00
Disclosure

SEC source: 0001127602-25-011815 · form4.xml · derivative · entry 1

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,291

Underlying: Common Stock · 20,291 shares

Expires 2035-04-04

F1 · derivative.exercise_date: The stock options, granted on April 4, 2025 pursuant to 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.

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April 04, 2025 Filed Apr 8, 2025 20:44 UTC GrantStock Options · Derivative 26,304 $0.00 Strike: $1.50 $0.00
Disclosure

SEC source: 0001127602-25-011813 · form4.xml · derivative · entry 1

Louie Ngar Yee · CIK 0001913264 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,304

Underlying: Common Stock · 26,304 shares

Expires 2035-04-04

F1 · derivative.exercise_date: The stock options, granted on April 4, 2025 pursuant to 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.

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April 04, 2025 Filed Apr 8, 2025 20:42 UTC GrantStock Options · Derivative 21,042 $0.00 Strike: $1.50 $0.00
Disclosure

SEC source: 0001127602-25-011811 · form4.xml · derivative · entry 1

Luput Cristian · CIK 0001913350 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,042

Underlying: Common Stock · 21,042 shares

Expires 2035-04-04

F1 · derivative.exercise_date: The stock options, granted on April 4, 2025 pursuant to 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.

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April 04, 2025 Filed Apr 8, 2025 20:41 UTC GrantStock Options · Derivative 20,291 $0.00 Strike: $1.50 $0.00
Disclosure

SEC source: 0001127602-25-011809 · form4.xml · derivative · entry 1

Theagene Jean-Manasse · CIK 0001969857 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,291

Underlying: Common Stock · 20,291 shares

Expires 2035-04-04

F1 · derivative.exercise_date: The stock options, granted on April 4, 2025 pursuant to 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.

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March 03, 2025 Filed Mar 5, 2025 21:42 UTC PurchaseWarrants · Derivative 33,333 $1.85 Strike: $1.85 $61,666.05
Disclosure

SEC source: 0001127602-25-008330 · form4.xml · derivative · entry 2

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,333

Underlying: Common Stock · 33,333 shares

Expires 2031-03-03

F2 · shares: These warrants were purchased pursuant to a Securities Purchase Agreement and were deemed options under the Issuer's 2021 Equity Incentive Plan on March 3, 2025. The options are exercisable beginning on the one-year anniversary of the issuance date and expire 6-years after the initial issuance date.

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March 03, 2025 Filed Mar 5, 2025 21:42 UTC PurchaseCommon Stock 33,333 $1.50 $49,999.50
Disclosure

SEC source: 0001127602-25-008330 · form4.xml · nonDerivative · entry 1

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 568,218

F1 · shares: The common stock was purchased pursuant to a Securities Purchase Agreement and were issued under the Issuer's 2021 Equity Incentive Plan on March 3, 2025.

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March 03, 2025 Filed Mar 5, 2025 21:40 UTC
Smith StanDirector
PurchaseWarrants · Derivative 25,000 $1.85 Strike: $1.85 $46,250.00
Disclosure

SEC source: 0001127602-25-008327 · form4.xml · derivative · entry 2

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires 2031-03-03

F3 · shares: These warrants were purchased pursuant to a Securities Purchase Agreement and were deemed options under the Issuer's 2021 Equity Incentive Plan on March 3, 2025. The options are exercisable beginning on the one-year anniversary of the issuance date and expire 6-years after the initial issuance date.

F4 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

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March 03, 2025 Filed Mar 5, 2025 21:40 UTC
Smith StanDirector
PurchaseCommon Stock 25,000 $1.50 $37,500.00
Disclosure

SEC source: 0001127602-25-008327 · form4.xml · nonDerivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,205,060

F1 · shares: The common stock was purchased pursuant to a Securities Purchase Agreement and were issued under the Issuer's 2021 Equity Incentive Plan on March 3, 2025.

F2 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

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February 24, 2025 Filed Feb 25, 2025 21:11 UTC PurchaseWarrants · Derivative 73,333 $1.87 Strike: $1.87 $137,132.71
Disclosure

SEC source: 0001127602-25-006578 · form4.xml · derivative · entry 2

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,333

Underlying: Common Stock · 73,333 shares

Expires 2030-08-24

F2 · derivative.exercise_date: These warrants were purchased pursuant to a Securities Purchase Agreement and were deemed options issued under the Issuer's 2021 Equity Incentive Plan on February 24, 2024. The options are exercisable beginning on the six month anniversary of the issuance date and expire 5-years after the initial exercise date.

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February 24, 2025 Filed Feb 25, 2025 21:11 UTC PurchaseCommon Stock 73,333 $1.50 $109,999.50
Disclosure

SEC source: 0001127602-25-006578 · form4.xml · nonDerivative · entry 1

Guerrero Ramiro · CIK 0001913253 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 534,885

F1 · shares: The common stock was purchased pursuant to a Securities Purchase Agreement and were isused under the Issuer's 2021 Equity Incentive Plan on February 24, 2024.

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February 24, 2025 Filed Feb 25, 2025 21:10 UTC
Smith StanDirector
PurchaseWarrants · Derivative 50,000 $1.87 Strike: $1.87 $93,500.00
Disclosure

SEC source: 0001127602-25-006574 · form4.xml · derivative · entry 2

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2030-08-24

F3 · derivative.exercise_date: These warrants were purchased pursuant to a Securities Purchase Agreement and were deemed options under the Issuer's 2021 Equity Incentive Plan on February 24, 2024. The options are exercisable beginning on the six month anniversary of the issuance date and expire 5-years after the initial exercise date.

F4 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

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February 24, 2025 Filed Feb 25, 2025 21:10 UTC
Smith StanDirector
PurchaseCommon Stock 50,000 $1.50 $75,000.00
Disclosure

SEC source: 0001127602-25-006574 · form4.xml · nonDerivative · entry 1

Smith Stan · CIK 0001913199 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,180,060

F1 · shares: The common stock was purchased pursuant to a Securities Purchase Agreement and were issued under the Issuer's 2021 Equity Incentive Plan on February 24, 2024.

F2 · ownership.nature: These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.