AMST

SEC source: 0001213900-26-106367 · ownership.xml · derivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,769

Underlying: Common Stock · 14,015 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-106364 · ownership.xml · derivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 95,927

Underlying: Common Stock · 12,121 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-106365 · ownership.xml · derivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,031

Underlying: Common Stock · 12,121 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-106366 · ownership.xml · derivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 115,911

Underlying: Common Stock · 14,646 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-074308 · ownership.xml · derivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,910

Underlying: Common Stock · 9,023 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-074307 · ownership.xml · derivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 83,806

Underlying: Common Stock · 9,023 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-074303 · ownership.xml · derivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 101,265

Underlying: Common Stock · 10,902 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-074302 · ownership.xml · derivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,754

Underlying: Common Stock · 10,432 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-074518 · ownership.xml · derivative · entry 1

Berman Sarah · CIK 0002049971 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2036-06-29

F1 · derivative.exercise_date: The option was issued pursuant to the Issuer's 2018 Equity Incentive Plan. Twenty-five percent (25%) of the shares subject to the option vest on June 29, 2027, with one thirty-sixth (1/36th) of the remaining shares subject to the option vesting monthly thereafter.

SEC source: 0001213900-26-058452 · ownership.xml · derivative · entry 3

Sastry Ann Marie · CIK 0001735506 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 174,216

Underlying: Common Stock · 174,216 shares

Expires 2027-10-28

SEC source: 0001213900-26-058452 · ownership.xml · derivative · entry 2

Sastry Ann Marie · CIK 0001735506 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 174,216

Underlying: Common Stock · 174,216 shares

Expires 2031-04-28

SEC source: 0001213900-26-058452 · ownership.xml · nonDerivative · entry 1

Sastry Ann Marie · CIK 0001735506 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,049,647

F1 · price: The shares were purchased in a private placement transaction pursuant to a securities purchase agreement. For more information relating to the offering pursuant to which the reported shares were purchased, please refer to the 424(b)(5) prospectus supplement filed by Amesite Inc. with the SEC on April 28, 2026.

SEC source: 0001213900-26-058450 · ownership.xml · derivative · entry 3

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 243,902

Underlying: Common Stock · 243,902 shares

Expires 2027-10-28

SEC source: 0001213900-26-058450 · ownership.xml · derivative · entry 2

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 243,902

Underlying: Common Stock · 243,902 shares

Expires 2031-04-28

SEC source: 0001213900-26-058450 · ownership.xml · nonDerivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 566,962

F1 · price: The shares were purchased in a private placement transaction pursuant to a securities purchase agreement. For more information relating to the offering pursuant to which the reported shares were purchased, please refer to the 424(b)(5) prospectus supplement filed by Amesite Inc. with the SEC on April 28, 2026.

SEC source: 0001213900-26-038719 · ownership.xml · derivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 74,783

Underlying: Common Stock · 6,522 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-038717 · ownership.xml · derivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,887

Underlying: Common Stock · 6,522 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-038718 · ownership.xml · derivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,322

Underlying: Common Stock · 7,541 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-038716 · ownership.xml · derivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 90,363

Underlying: Common Stock · 7,880 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-025893 · ownership.xml · derivative · entry 2

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 41,322 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F1 · derivative.exercise_date: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

F1 · derivative.expiration_date: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

SEC source: 0001213900-26-025893 · ownership.xml · nonDerivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 323,060

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

SEC source: 0001213900-26-025892 · ownership.xml · derivative · entry 2

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 41,322 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F1 · derivative.exercise_date: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

F1 · derivative.expiration_date: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

SEC source: 0001213900-26-025892 · ownership.xml · nonDerivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,977

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

SEC source: 0001213900-26-025891 · ownership.xml · derivative · entry 2

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 0

Underlying: Common Stock · 41,322 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F1 · derivative.exercise_date: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

F1 · derivative.expiration_date: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

SEC source: 0001213900-26-025891 · ownership.xml · nonDerivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 143,699

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

SEC source: 0001213900-26-025890 · ownership.xml · derivative · entry 2

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 0

Underlying: Common Stock · 41,322 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F1 · derivative.exercise_date: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

F1 · derivative.expiration_date: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

SEC source: 0001213900-26-025890 · ownership.xml · nonDerivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 138,200

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The reported restricted stock units were granted on March 7, 2025 and vested on March 7, 2026.

SEC source: 0001213900-26-014415 · ownership.xml · derivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 49,751

Underlying: Common Stock · 49,751 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The RSUs fully vest on the first anniversary of the date of grant.

F2 · derivative.expiration_date: The RSUs fully vest on the first anniversary of the date of grant.

SEC source: 0001213900-26-014413 · ownership.xml · derivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 49,751

Underlying: Common Stock · 49,751 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The RSUs fully vest on the first anniversary of the date of grant.

F2 · derivative.expiration_date: The RSUs fully vest on the first anniversary of the date of grant.

SEC source: 0001213900-26-014411 · ownership.xml · derivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,751

Underlying: Common Stock · 49,751 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The RSUs fully vest on the first anniversary of the date of grant.

F2 · derivative.expiration_date: The RSUs fully vest on the first anniversary of the date of grant.

SEC source: 0001213900-26-014405 · ownership.xml · derivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,751

Underlying: Common Stock · 49,751 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The RSUs fully vest on the first anniversary of the date of grant.

F2 · derivative.expiration_date: The RSUs fully vest on the first anniversary of the date of grant.

SEC source: 0001213900-26-001119 · ownership.xml · derivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 68,261

Underlying: Common Stock · 6,349 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-001118 · ownership.xml · derivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,781

Underlying: Common Stock · 7,341 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-001116 · ownership.xml · derivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 82,483

Underlying: Common Stock · 7,672 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-001117 · ownership.xml · derivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,365

Underlying: Common Stock · 6,349 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-095457 · ownership.xml · derivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,440

Underlying: Common Stock · 4,549 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-095452 · ownership.xml · derivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 61,912

Underlying: Common Stock · 3,934 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-095441 · ownership.xml · derivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 74,811

Underlying: Common Stock · 4,754 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-095444 · ownership.xml · derivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,016

Underlying: Common Stock · 3,934 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-061107 · ownership.xml · derivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 57,978

Underlying: Common Stock · 4,461 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-061038 · ownership.xml · derivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,891

Underlying: Common Stock · 5,158 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-061037 · ownership.xml · derivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 70,057

Underlying: Common Stock · 5,390 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-061036 · ownership.xml · derivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,082

Underlying: Common Stock · 4,461 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-26-074517 · ownership.xml · derivative · entry 1

Berman Sarah · CIK 0002049971 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,500

Underlying: Common Stock · 2,500 shares

Expires 2035-05-22

F1 · derivative.exercise_date: The option was issued pursuant to the Issuer's 2018 Equity Incentive Plan. Twenty-five percent (25%) of the shares subject to the option vested on May 22, 2026, with one thirty-sixth (1/36th) of the remaining shares subject to the option vesting monthly thereafter.

SEC source: 0001213900-25-028249 · ownership.xml · derivative · entry 1

Parmer George · CIK 0001626673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,621

Underlying: Common Stock · 4,959 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-028248 · ownership.xml · derivative · entry 1

OMENN GILBERT S · CIK 0001184227 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Gilbert S. Omenn Revocable Trust

Disclosed balance after: 53,517

Underlying: Common Stock · 4,959 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-028246 · ownership.xml · derivative · entry 1

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,733

Underlying: Common Stock · 5,733 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-028247 · ownership.xml · derivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · J. Michael Losh Irrevocable Qualified Annuity Trust #7

Disclosed balance after: 64,667

Underlying: Common Stock · 5,992 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F2 · derivative.exercise_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

F2 · derivative.expiration_date: The reported securities were issued as "deferred stock units" in lieu of cash compensation earned for services as a director, and the number of deferred stock units received was calculated based on the closing share price on the last day of the quarter. The deferred stock units or cash equivalent will be issued to the reporting person upon completion of service as a member of the board of directors or, if earlier, a change in control.

SEC source: 0001213900-25-022805 · ownership.xml · derivative · entry 4

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,322

Underlying: Common Stock · 41,322 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of AMST common stock and/or the cash equivalent of such share.

F4 · derivative.exercise_date: The RSUs fully vest on the first anniversary of the date of grant.

F4 · derivative.expiration_date: The RSUs fully vest on the first anniversary of the date of grant.

SEC source: 0001213900-25-022805 · ownership.xml · nonDerivative · entry 2

Brewer Barbie · CIK 0001783755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,655

F2 · price: On March 7, 2025, the reporting person was granted 41,322 shares of common stock as compensation for services rendered as a member of the board of directors of the issuer.