Roemer Alan S.

SEC source: 0001643070-25-000005 · form4-12232025_061205.xml · nonDerivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,514

F1 · balance_after: Effective June 3, 2025, the Issuer effected a 1-for-30 reverse stock split of the Issuer's common stock. The number of securities reported herein have been adjusted to reflect the reverse stock split.

SEC source: 0001415889-25-012649 · form4-05122025_040507.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,150

Underlying: Common Stock · 63,150 shares

Expires 2035-05-08

F1 · derivative.exercise_date: One twelfth (1/12th) of the shares subject to the option shall vest in equal monthly installments commencing on June 8, 2025; provided, however, that the option will in any case be fully vested on the date of the Company's next annual meeting of stockholders, subject to the Reporting Person continuing to provide service through each such date.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · derivative · entry 8

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,000 shares

Expires 2025-05-02

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_date: Fully vested and exercisable.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · derivative · entry 5

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 102,459 shares

Expires 2025-05-02

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_date: Fully vested and exercisable.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · nonDerivative · entry 2

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 398,489

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.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · nonDerivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 387,489

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.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · derivative · entry 9

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,459

Underlying: Common Stock · 91,459 shares

Expires 2028-12-13

F5 · kind: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.50 per share. The exercise price was reduced to $0.45 per share.

F4 · price: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.50 per share and expiration date of December 13, 2028. In regards to 11,000 warrant shares, the exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025. In regards to the remaining 91,459 warrant shares, the exercise price was reduced to $0.45 per share with no change to the expiration date.

F2 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · derivative · entry 7

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,000

Underlying: Common Stock · 11,000 shares

Expires 2025-05-02

F4 · kind: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.50 per share and expiration date of December 13, 2028. In regards to 11,000 warrant shares, the exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025. In regards to the remaining 91,459 warrant shares, the exercise price was reduced to $0.45 per share with no change to the expiration date.

F4 · price: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.50 per share and expiration date of December 13, 2028. In regards to 11,000 warrant shares, the exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025. In regards to the remaining 91,459 warrant shares, the exercise price was reduced to $0.45 per share with no change to the expiration date.

F2 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · derivative · entry 6

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 102,459 shares

Expires 2028-12-13

F4 · kind: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.50 per share and expiration date of December 13, 2028. In regards to 11,000 warrant shares, the exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025. In regards to the remaining 91,459 warrant shares, the exercise price was reduced to $0.45 per share with no change to the expiration date.

F3 · price: The reported securities are included within 102,459 units purchased by the Reporting Person on December 13, 2023 for $1.22 per unit. Each unit consists of one share of common stock, one Series A warrant and one Series B warrant, each warrant represents the right to purchase 102,459 shares of common stock.

F4 · price: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.50 per share and expiration date of December 13, 2028. In regards to 11,000 warrant shares, the exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025. In regards to the remaining 91,459 warrant shares, the exercise price was reduced to $0.45 per share with no change to the expiration date.

F2 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · derivative · entry 4

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,459

Underlying: Common Stock · 102,459 shares

Expires 2025-05-02

F1 · kind: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 and later amended on October 4, 2024 with an exercise price of $0.45 per share and expiration date of October 4, 2025. On April 27, 2025, the warrant's exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025.

F1 · price: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 and later amended on October 4, 2024 with an exercise price of $0.45 per share and expiration date of October 4, 2025. On April 27, 2025, the warrant's exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025.

F2 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001415889-25-012287 · form4-05072025_080503.xml · derivative · entry 3

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 102,459 shares

Expires 2025-10-04

F1 · kind: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 and later amended on October 4, 2024 with an exercise price of $0.45 per share and expiration date of October 4, 2025. On April 27, 2025, the warrant's exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025.

F1 · price: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 and later amended on October 4, 2024 with an exercise price of $0.45 per share and expiration date of October 4, 2025. On April 27, 2025, the warrant's exercise price was reduced to $0.1844 per share and the warrant expiration date was amended to May 2, 2025.

F3 · price: The reported securities are included within 102,459 units purchased by the Reporting Person on December 13, 2023 for $1.22 per unit. Each unit consists of one share of common stock, one Series A warrant and one Series B warrant, each warrant represents the right to purchase 102,459 shares of common stock.

F2 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001415889-24-030060 · form4-12232024_041211.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,242

Underlying: Common Stock · 93,242 shares

Expires 2034-12-19

F1 · derivative.exercise_date: The shares subject to the option shall vest on December 19, 2025, subject to the Reporting Person continuing to provide service on such date.

SEC source: 0001415889-24-024868 · form4-10082024_041006.xml · derivative · entry 4

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,582

Underlying: Common Stock · 126,582 shares

Expires 2027-10-04

F1 · price: The reported securities are included within 126,582 Issuer Units purchased by the Reporting Person for $0.395 per Unit. Each Unit consists of one share of common stock and one Series C warrant representing the right to purchase 126,582 shares of common stock.

F3 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001415889-24-024868 · form4-10082024_041006.xml · derivative · entry 3

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,459

Underlying: Common Stock · 102,459 shares

Expires 2025-10-04

F2 · kind: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.25 and expiration date of June 13, 2025. The exercise price was reduced to $0.45 and the warrant expiration date was extended to October 4, 2025.

F2 · price: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.25 and expiration date of June 13, 2025. The exercise price was reduced to $0.45 and the warrant expiration date was extended to October 4, 2025.

F4 · price: The reported securities are included within 102,459 Issuer Units purchased by the Reporting Person for $1.22 per Unit. Each Unit consists of one share of common stock, one Series A warrant and one Series B warrant, each warrant represents the right to purchase 102,459 shares of common stock.

F3 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001415889-24-024868 · form4-10082024_041006.xml · derivative · entry 2

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 102,459 shares

Expires 2025-06-13

F2 · kind: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.25 and expiration date of June 13, 2025. The exercise price was reduced to $0.45 and the warrant expiration date was extended to October 4, 2025.

F2 · price: The reported transaction involved an amendment of an outstanding warrant, resulting in the deemed cancellation of the "old" warrant and the grant of a "replacement" warrant. The warrant was originally granted on December 13, 2023 with an exercise price of $1.25 and expiration date of June 13, 2025. The exercise price was reduced to $0.45 and the warrant expiration date was extended to October 4, 2025.

F4 · price: The reported securities are included within 102,459 Issuer Units purchased by the Reporting Person for $1.22 per Unit. Each Unit consists of one share of common stock, one Series A warrant and one Series B warrant, each warrant represents the right to purchase 102,459 shares of common stock.

F3 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001415889-24-024868 · form4-10082024_041006.xml · nonDerivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 285,030

F1 · price: The reported securities are included within 126,582 Issuer Units purchased by the Reporting Person for $0.395 per Unit. Each Unit consists of one share of common stock and one Series C warrant representing the right to purchase 126,582 shares of common stock.

SEC source: 0001415889-24-016964 · form4-06142024_050603.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,650

Underlying: Common Stock · 33,650 shares

Expires 2034-06-12

F1 · derivative.exercise_date: One twelfth (1/12th) of the shares subject to the option shall vest in equal monthly installments commencing on July 12, 2024; provided, however, that the option will in any case be fully vested on the date of the Company's next annual meeting of stockholders, subject to the Reporting Person continuing to provide service through each such date.

SEC source: 0001209191-23-058719 · doc4.xml · derivative · entry 3

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,459

Underlying: Common Stock · 102,459 shares

Expires 2028-12-13

F1 · price: The reported securities are included within 102,459 Issuer Units purchased by the Reporting Person for $1.22 per Unit. Each Unit consists of one share of common stock, one Series A warrant and one Series B warrant, each warrant represents the right to purchase 102,459 shares of common stock.

F2 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001209191-23-058719 · doc4.xml · derivative · entry 2

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,459

Underlying: Common Stock · 102,459 shares

Expires 2025-06-13

F1 · price: The reported securities are included within 102,459 Issuer Units purchased by the Reporting Person for $1.22 per Unit. Each Unit consists of one share of common stock, one Series A warrant and one Series B warrant, each warrant represents the right to purchase 102,459 shares of common stock.

F2 · derivative.exercise_date: Fully vested and exercisable.

SEC source: 0001209191-23-058719 · doc4.xml · nonDerivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,448

F1 · price: The reported securities are included within 102,459 Issuer Units purchased by the Reporting Person for $1.22 per Unit. Each Unit consists of one share of common stock, one Series A warrant and one Series B warrant, each warrant represents the right to purchase 102,459 shares of common stock.

SEC source: 0001209191-23-056514 · doc4.xml · nonDerivative · entry 2

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F2 · price: The price reflects the average selling price of the common stock sold. These shares were sold in multiple transactions at prices ranging from $1.91 to $2.05 per common stock. The Reporting Person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, full information regarding the number of common stock sold at each price.

SEC source: 0001209191-23-056514 · doc4.xml · nonDerivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,992

F1 · price: The price reflects the average selling price of the common stock sold. These shares were sold in multiple transactions at prices ranging from $2.05 to $2.39 per common stock. The Reporting Person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, full information regarding the number of common stock sold at each price.

SEC source: 0000950170-23-032247 · ownership.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,983

Underlying: Common Stock · 44,983 shares

Expires 2033-07-04

SEC source: 0001209191-23-038119 · doc4.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,000

Underlying: Common Stock · 85,000 shares

Expires 2033-06-15

F1 · derivative.exercise_date: One twelfth (1/12th) of the shares subject to the option shall vest in equal monthly installments commencing on July 15, 2023 and will be fully vested on the date of the next annual meeting of the Issuer's stockholders, subject to the Reporting Person continuing to provide service through each such date.

SEC source: 0001209191-23-023689 · doc4.xml · derivative · entry 8

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,856

Underlying: Common Stock · 3,856 shares

Expires 2029-03-18

F4 · kind: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 19, 2019, of which all of the shares subject to such option have vested. Mr. Roemer has exercised his right to purchase 42,389 shares subject to the original option.

F4 · price: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 19, 2019, of which all of the shares subject to such option have vested. Mr. Roemer has exercised his right to purchase 42,389 shares subject to the original option.

F4 · derivative.exercise_date: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 19, 2019, of which all of the shares subject to such option have vested. Mr. Roemer has exercised his right to purchase 42,389 shares subject to the original option.

SEC source: 0001209191-23-023689 · doc4.xml · derivative · entry 7

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,856 shares

Expires 2029-03-18

F4 · kind: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 19, 2019, of which all of the shares subject to such option have vested. Mr. Roemer has exercised his right to purchase 42,389 shares subject to the original option.

F4 · price: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 19, 2019, of which all of the shares subject to such option have vested. Mr. Roemer has exercised his right to purchase 42,389 shares subject to the original option.

F4 · derivative.exercise_date: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 19, 2019, of which all of the shares subject to such option have vested. Mr. Roemer has exercised his right to purchase 42,389 shares subject to the original option.

SEC source: 0001209191-23-023689 · doc4.xml · derivative · entry 6

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,122

Underlying: Common Stock · 23,122 shares

Expires 2030-03-04

F3 · kind: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 5, 2020, of which all of the shares subject to such option have vested.

F3 · price: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 5, 2020, of which all of the shares subject to such option have vested.

F3 · derivative.exercise_date: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 5, 2020, of which all of the shares subject to such option have vested.

SEC source: 0001209191-23-023689 · doc4.xml · derivative · entry 5

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,122 shares

Expires 2030-03-04

F3 · kind: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 5, 2020, of which all of the shares subject to such option have vested.

F3 · price: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 5, 2020, of which all of the shares subject to such option have vested.

F3 · derivative.exercise_date: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on March 5, 2020, of which all of the shares subject to such option have vested.

SEC source: 0001209191-23-023689 · doc4.xml · derivative · entry 4

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,556

Underlying: Common Stock · 9,556 shares

Expires 2031-02-10

F2 · kind: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on February 11, 2021, of which all of the shares subject to such option have vested.

F2 · price: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on February 11, 2021, of which all of the shares subject to such option have vested.

F2 · derivative.exercise_date: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on February 11, 2021, of which all of the shares subject to such option have vested.

SEC source: 0001209191-23-023689 · doc4.xml · derivative · entry 3

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,556 shares

Expires 2031-02-10

F2 · kind: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on February 11, 2021, of which all of the shares subject to such option have vested.

F2 · price: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on February 11, 2021, of which all of the shares subject to such option have vested.

F2 · derivative.exercise_date: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on February 11, 2021, of which all of the shares subject to such option have vested.

SEC source: 0001209191-23-023689 · doc4.xml · derivative · entry 2

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,678

Underlying: Common Stock · 61,678 shares

Expires 2032-06-12

F1 · kind: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on June 13, 2022, of which all of the shares subject to such option will vest on June 13, 2023, subject to Mr. Roemer's continued service on such vesting date.

F1 · price: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on June 13, 2022, of which all of the shares subject to such option will vest on June 13, 2023, subject to Mr. Roemer's continued service on such vesting date.

F1 · derivative.exercise_date: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on June 13, 2022, of which all of the shares subject to such option will vest on June 13, 2023, subject to Mr. Roemer's continued service on such vesting date.

SEC source: 0001209191-23-023689 · doc4.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 61,678 shares

Expires 2032-06-12

F1 · kind: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on June 13, 2022, of which all of the shares subject to such option will vest on June 13, 2023, subject to Mr. Roemer's continued service on such vesting date.

F1 · price: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on June 13, 2022, of which all of the shares subject to such option will vest on June 13, 2023, subject to Mr. Roemer's continued service on such vesting date.

F1 · derivative.exercise_date: The reported transactions involved an amendment of an outstanding stock option grant, resulting in the deemed cancellation of the old option and the grant of a replacement option. The option was originally granted on June 13, 2022, of which all of the shares subject to such option will vest on June 13, 2023, subject to Mr. Roemer's continued service on such vesting date.

SEC source: 0001209191-22-046600 · doc4.xml · nonDerivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,989

SEC source: 0001209191-22-037013 · doc4.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,678

Underlying: Common Stock · 61,678 shares

Expires 2032-06-12

SEC source: 0001209191-22-036802 · doc4.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,500

Underlying: Common Stock · 10,500 shares

Expires 2032-06-01

F1 · derivative.exercise_date: One twelfth (1/12th) of the shares subject to the option shall vest in equal monthly installments commencing on July 1, 2022 and will be fully vested on the date of the next annual meeting of the Issuer's stockholders, subject to the Reporting Person continuing to provide service through each such date.

SEC source: 0001209191-22-051163 · doc4a.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,500

Underlying: Common Stock · 13,500 shares

Expires 2032-06-01

F1 · shares: The original Form 4 inadvertently listed the incorrect number of shares granted to the Reporting Person.

F2 · derivative.exercise_date: One twelfth (1/12th) of the shares subject to the option shall vest in equal monthly installments commencing on July 1, 2022 and will be fully vested on the date of the next annual meeting of the Issuer's stockholders, subject to the Reporting Person continuing to provide service through each such date.

F1 · derivative.underlying_shares: The original Form 4 inadvertently listed the incorrect number of shares granted to the Reporting Person.

F1 · balance_after: The original Form 4 inadvertently listed the incorrect number of shares granted to the Reporting Person.

SEC source: 0001209191-21-070944 · doc4.xml · derivative · entry 6

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,856

Underlying: Common Stock · 42,389 shares

Expires 2029-03-18

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_date: 33.33% of the shares vested on March 19, 2020; the remainder vests monthly on the 19th of every month until March 19, 2022.

SEC source: 0001209191-21-070944 · doc4.xml · derivative · entry 5

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,634 shares

Expires 2028-06-18

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 · derivative.exercise_date: All shares underlying this option have vested.

SEC source: 0001209191-21-070944 · doc4.xml · derivative · entry 4

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,634 shares

Expires 2027-03-02

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 · derivative.exercise_date: All shares underlying this option have vested.

SEC source: 0001209191-21-070944 · doc4.xml · nonDerivative · entry 3

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 195,641

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.

SEC source: 0001209191-21-070944 · doc4.xml · nonDerivative · entry 2

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 153,252

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.

SEC source: 0001209191-21-070944 · doc4.xml · nonDerivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,618

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.

SEC source: 0001209191-21-066459 · doc4.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,258

Underlying: Common Stock · 86,258 shares

Expires 2031-11-19

F1 · derivative.exercise_date: One twelfth (1/12th) of the shares subject to the option shall vest on the last day of each calendar quarter commencing on September 30, 2021, subject to the Reporting Person continuing to provide service through each such date.

SEC source: 0001209191-21-049163 · doc4.xml · derivative · entry 1

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,500

Underlying: Common Stock · 10,500 shares

Expires 2031-07-29

F1 · derivative.exercise_date: One twelfth (1/12th) of the shares subject to the option shall vest in equal monthly installments commencing on August 29, 2021 and will be fully vested on the date of the next annual meeting of the Issuer's stockholders, subject to the Reporting Person continuing to provide service through each such date.

SEC source: 0001209191-21-012364 · doc4.xml · derivative · entry 8

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,268 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: On February 17, 2021 (the "Closing"), the convertible promissory notes (the "Notes") became automatically convertible into shares of the Issuer's common stock. At the Closing, the principal amount of the Notes, plus accrued but unpaid interest thereon through February 17, 2021, converted into shares of the Issuer's common stock by dividing the principal and accrued but unpaid interest under such Note by the price per share obtained by dividing $125,000,000 by the Company's fully-diluted capitalization immediately prior to the IPO, assuming exercise or conversion of all convertible securities of the Company but excluding any shares issuable upon conversion of the Notes.

F2 · price: On February 17, 2021 (the "Closing"), the convertible promissory notes (the "Notes") became automatically convertible into shares of the Issuer's common stock. At the Closing, the principal amount of the Notes, plus accrued but unpaid interest thereon through February 17, 2021, converted into shares of the Issuer's common stock by dividing the principal and accrued but unpaid interest under such Note by the price per share obtained by dividing $125,000,000 by the Company's fully-diluted capitalization immediately prior to the IPO, assuming exercise or conversion of all convertible securities of the Company but excluding any shares issuable upon conversion of the Notes.

F2 · derivative.exercise_date: On February 17, 2021 (the "Closing"), the convertible promissory notes (the "Notes") became automatically convertible into shares of the Issuer's common stock. At the Closing, the principal amount of the Notes, plus accrued but unpaid interest thereon through February 17, 2021, converted into shares of the Issuer's common stock by dividing the principal and accrued but unpaid interest under such Note by the price per share obtained by dividing $125,000,000 by the Company's fully-diluted capitalization immediately prior to the IPO, assuming exercise or conversion of all convertible securities of the Company but excluding any shares issuable upon conversion of the Notes.

F4 · derivative.expiration_date: Not applicable.

SEC source: 0001209191-21-012364 · doc4.xml · derivative · entry 7

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 26,590 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.

F1 · derivative.exercise_price: The shares of preferred stock automatically converted into common stock immediately upon completion of the Issuer's initial public offering on a 1-for-1 basis.

F1 · price: The shares of preferred stock automatically converted into common stock immediately upon completion of the Issuer's initial public offering on a 1-for-1 basis.

F3 · derivative.exercise_date: The shares of preferred stock were convertible into the Issuer's common stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering.

F4 · derivative.expiration_date: Not applicable.

SEC source: 0001209191-21-012364 · doc4.xml · derivative · entry 6

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,110 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.

F1 · derivative.exercise_price: The shares of preferred stock automatically converted into common stock immediately upon completion of the Issuer's initial public offering on a 1-for-1 basis.

F1 · price: The shares of preferred stock automatically converted into common stock immediately upon completion of the Issuer's initial public offering on a 1-for-1 basis.

F3 · derivative.exercise_date: The shares of preferred stock were convertible into the Issuer's common stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering.

F4 · derivative.expiration_date: Not applicable.

SEC source: 0001209191-21-012364 · doc4.xml · derivative · entry 5

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 85,016 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.

F1 · derivative.exercise_price: The shares of preferred stock automatically converted into common stock immediately upon completion of the Issuer's initial public offering on a 1-for-1 basis.

F1 · price: The shares of preferred stock automatically converted into common stock immediately upon completion of the Issuer's initial public offering on a 1-for-1 basis.

F3 · derivative.exercise_date: The shares of preferred stock were convertible into the Issuer's common stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering.

F4 · derivative.expiration_date: Not applicable.

SEC source: 0001209191-21-012364 · doc4.xml · nonDerivative · entry 4

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,984

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 · price: On February 17, 2021 (the "Closing"), the convertible promissory notes (the "Notes") became automatically convertible into shares of the Issuer's common stock. At the Closing, the principal amount of the Notes, plus accrued but unpaid interest thereon through February 17, 2021, converted into shares of the Issuer's common stock by dividing the principal and accrued but unpaid interest under such Note by the price per share obtained by dividing $125,000,000 by the Company's fully-diluted capitalization immediately prior to the IPO, assuming exercise or conversion of all convertible securities of the Company but excluding any shares issuable upon conversion of the Notes.

SEC source: 0001209191-21-012364 · doc4.xml · nonDerivative · entry 3

Roemer Alan S. · CIK 0001643070 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,716

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 shares of preferred stock automatically converted into common stock immediately upon completion of the Issuer's initial public offering on a 1-for-1 basis.