OSTX

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 12

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,547,931

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.

F13 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $100,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 11

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,497,093

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.

F12 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $350,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 10

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,318,958

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.

F11 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $100,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 9

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,267,923

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.

F10 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $350,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 8

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,088,896

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.

F9 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $170,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 7

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,999,956

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.

F8 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $150,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 6

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,921,246

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.

F7 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $250,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 5

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,789,774

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.

F6 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $100,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 4

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,736,306

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.

F5 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $500,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 3

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,465,841

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.

F4 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $50,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 2

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,438,355

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.

F3 · price: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Einodmil in the principal amount of $1,150,000 at a conversion price of $2.00 per share.

F1 · ownership.nature: The shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer are held directly by Einodmil LLC ("Einodmil"). Mr. Auerbach serves as the Principal of Einodmil and exercises voting and dispositive power over the shares held by Einodmil. Mr. Auerbach disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0001493152-25-002247 · ownership.xml · nonDerivative · entry 1

Auerbach Shalom · CIK 0002048828 · 10% owner

Einodmil LLC · CIK 0002048829 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,371

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: The shares of Common Stock of the Issuer were issued upon the automatic conversion, which occurred upon the consummation of the Issuer's initial public offering on August 2, 2024, of a convertible promissory note held by Mr. Auerbach in the principal amount of $25,000 at a conversion price of $1.31 per share.