CBRS

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 23

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 596,443

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F23 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $235.00 to $235.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 22

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 596,744

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F22 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $234.04 to $234.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 21

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 597,334

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F21 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $233.00 to $233.92, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 20

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 597,558

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F20 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $232.05 to $232.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 19

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 597,835

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F19 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $231.12 to $231.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 18

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 598,078

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F18 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $230.11 to $230.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 17

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 598,125

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F17 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $229.00 to $229.88, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 16

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 598,272

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F16 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $228.01 to $228.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 15

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 598,367

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F15 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $227.01 to $227.96, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 14

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 598,714

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F14 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $226.01 to $226.97, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 13

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 599,171

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F13 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $225.01 to $225.98, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 12

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 599,506

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F12 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $224.12 to $224.92, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 11

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 599,708

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F11 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $223.00 to $223.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 10

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 600,200

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F10 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $222.00 to $222.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 9

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 601,799

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F9 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $221.00 to $221.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 8

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 605,208

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F8 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $220.00 to $220.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 7

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 608,931

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F7 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $219.00 to $219.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 6

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 610,825

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F6 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $218.00 to $218.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 5

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 612,495

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F5 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $217.00 to $217.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 4

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 613,839

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F4 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $216.00 to $216.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 3

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 615,646

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

F3 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $215.01 to $215.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 2

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 616,705

F2 · shares: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

SEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 1

Lie Sean · CIK 0002132472 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 616,706

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 · shares: The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date.

F1 · price: The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date.

SEC source: 0001628280-26-058119 · wk-form4_1787188343.xml · nonDerivative · entry 1

Feldman Andrew D. · CIK 0002039573 · Director · CEO, President

10b5-1 filing: No plan indicated

Ownership: Indirect · By Feldman Bravo Family Trust

Disclosed balance after: 566

F1 · kind: Represents a pro-rata, in-kind distribution not for additional consideration.

SEC source: 0001104659-26-098848 · tm2623587-1_4seq1.xml · derivative · entry 3

Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner

Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner

Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner

Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner

Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner

Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner

Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner

Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner

Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner

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

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 9,825,193

Underlying: Class A Common Stock · 2,402,352 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.

F4 · derivative.exercise_price: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F4 · derivative.exercise_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F4 · derivative.expiration_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities.

SEC source: 0001104659-26-098848 · tm2623587-1_4seq1.xml · nonDerivative · entry 2

Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner

Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner

Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner

Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner

Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner

Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner

Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner

Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner

Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner

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

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees, in accordance with a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2026.

F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities.

SEC source: 0001104659-26-098848 · tm2623587-1_4seq1.xml · nonDerivative · entry 1

Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner

Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner

Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner

Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner

Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner

Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner

Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner

Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner

Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner

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

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 2,402,352

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 · kind: Conversion of a derivative security in accordance with its terms.

F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities.

SEC source: 0001104659-26-098846 · tm2623587-3_4seq1.xml · nonDerivative · entry 7

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 142,333

F8 · kind: Represents a pro-rata, in-kind distribution by Benchmark Capital Partners VIII, L.P. and its affiliated funds, not for additional consideration, to its partners, including their respective members and assignees.

F3 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-26-098846 · tm2623587-3_4seq1.xml · nonDerivative · entry 6

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 31,383

F1 · kind: These shares were sold by The Vishria Revocable Trust pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 18, 2026.

F7 · price: Represents the weighted-average sale price per share of a series of transactions, all of which were executed on August 17, 2026. The actual sale prices ranged from a low of $250.00 to a high of $250.69, inclusive. The Reporting Person undertakes to provide upon request of the SEC Staff, Cerebras Systems Inc. or any security holder of Cerebras Systems Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.

F3 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-26-098846 · tm2623587-3_4seq1.xml · nonDerivative · entry 5

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 37,069

F1 · kind: These shares were sold by The Vishria Revocable Trust pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 18, 2026.

F3 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-26-098846 · tm2623587-3_4seq1.xml · nonDerivative · entry 4

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 38,708

F1 · kind: These shares were sold by The Vishria Revocable Trust pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 18, 2026.

F6 · price: Represents the weighted-average sale price per share of a series of transactions, all of which were executed on August 17, 2026. The actual sale prices ranged from a low of $229.03 to a high of $229.76, inclusive. The Reporting Person undertakes to provide upon request of the SEC Staff, Cerebras Systems Inc. or any security holder of Cerebras Systems Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.

F3 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-26-098846 · tm2623587-3_4seq1.xml · nonDerivative · entry 3

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 47,984

F1 · kind: These shares were sold by The Vishria Revocable Trust pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 18, 2026.

F5 · price: Represents the weighted-average sale price per share of a series of transactions, all of which were executed on August 17, 2026. The actual sale prices ranged from a low of $228.00 to a high of $228.925, inclusive. The Reporting Person undertakes to provide upon request of the SEC Staff, Cerebras Systems Inc. or any security holder of Cerebras Systems Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.

F3 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-26-098846 · tm2623587-3_4seq1.xml · nonDerivative · entry 2

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 89,351

F1 · kind: These shares were sold by The Vishria Revocable Trust pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 18, 2026.

F4 · price: Represents the weighted-average sale price per share of a series of transactions, all of which were executed on August 17, 2026. The actual sale prices ranged from a low of $227.95 to a high of $227.975, inclusive. The Reporting Person undertakes to provide upon request of the SEC Staff, Cerebras Systems Inc. or any security holder of Cerebras Systems Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.

F3 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-26-098846 · tm2623587-3_4seq1.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 89,651

F1 · kind: These shares were sold by The Vishria Revocable Trust pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 18, 2026.

F2 · price: Represents the weighted-average sale price per share of a series of transactions, all of which were executed on August 17, 2026. The actual sale prices ranged from a low of $224.00 to a high of $224.49, inclusive. The Reporting Person undertakes to provide upon request of the SEC Staff, Cerebras Systems Inc. or any security holder of Cerebras Systems Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.

F3 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001193125-26-355497 · ownership.xml · nonDerivative · entry 3

Susan Lior · CIK 0001832895 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 160,791

F3 · kind: The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration.

F3 · price: The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration.

F4 · ownership.nature: The shares are held directly by an estate-planning vehicle which is controlled by the Reporting Person.

SEC source: 0001193125-26-355497 · ownership.xml · nonDerivative · entry 2

Susan Lior · CIK 0001832895 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 197,784

F3 · kind: The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration.

F3 · price: The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration.

SEC source: 0001193125-26-355497 · ownership.xml · nonDerivative · entry 1

Susan Lior · CIK 0001832895 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 9,197,415

F1 · kind: Represents a pro-rata, in-kind distribution by the Eclipse Entities (as defined below) to its partners, for no additional consideration (the "Distribution").

F1 · price: Represents a pro-rata, in-kind distribution by the Eclipse Entities (as defined below) to its partners, for no additional consideration (the "Distribution").

F2 · ownership.nature: Following the distribution, consists of (i) 546,645 shares of Class A common stock held by Eclipse Continuity Fund I, L.P. ("Eclipse Continuity Fund"); (ii) 4,472,603 shares of Class A common stock held by Eclipse SPV II, L.P. ("Eclipse SPV II"); (iii) 409,719 shares of Class A common stock held by Eclipse SPV XIII, L.P. ("Eclipse SPV XIII"); and (iv) 3,768,448 shares of Class A common stock held by Eclipse Ventures Fund I, L.P. ("Eclipse Fund," and together with Eclipse Continuity Fund, Eclipse SPV II, and Eclipse SPV XIII, "Eclipse Entities"). The Reporting Person is the sole managing member of the general partner of each of the Eclipse Entities and may be deemed to have voting, investment, and dispositive power with respect to the shares held by such entities.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · derivative · entry 25

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Foundation Capital Leadership Fund II, L.P.

Disclosed balance after: 954,985

Underlying: Class A Common Stock · 27,285 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: Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration.

F22 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder and does not expire.

F22 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder and does not expire.

F4 · ownership.nature: Securities are directly held by Foundation Capital Leadership Fund II, L.P. ("FCLF2"). Foundation Capital Management Co. LF II, L.L.C. ("FCMLF2") is the general partner of FCLF2. The Reporting Person is a manager of FCMLF2 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · derivative · entry 24

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Foundation Capital VIII Principals Fund, LLC

Disclosed balance after: 262,174

Underlying: Class A Common Stock · 7,490 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: Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration.

F22 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder and does not expire.

F22 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder and does not expire.

F3 · ownership.nature: Securities are directly held by Foundation Capital VIII Principals Fund, L.L.C. ("FC8P"). Foundation Capital Management Co. VIII, L.L.C. ("FCM8") is the manager of FC8P. The Reporting Person is a manager of FCM8 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · derivative · entry 23

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Foundation Capital VIII, L.P.

Disclosed balance after: 12,172,392

Underlying: Class A Common Stock · 347,782 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: Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration.

F1 · price: Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration.

F22 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder and does not expire.

F22 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder and does not expire.

F2 · ownership.nature: Securities are directly held by Foundation Capital VIII, L.P. ("FC8"). Foundation Capital Management Co. VIII, L.L.C. ("FCM8") is the general partner of FC8. The Reporting Person is a manager of FCM8 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 19

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Revocable Trust

Disclosed balance after: 49,599

F21 · price: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $219.90 to $220.15 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.

F14 · ownership.nature: The securities are held by a revocable family trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 18

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Revocable Trust

Disclosed balance after: 50,690

F20 · price: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $218.90 to $219.89 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.

F14 · ownership.nature: The securities are held by a revocable family trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 17

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Revocable Trust

Disclosed balance after: 65,013

F19 · price: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $217.90 to $218.89 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.

F14 · ownership.nature: The securities are held by a revocable family trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 16

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Revocable Trust

Disclosed balance after: 76,847

F18 · price: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $216.87 to $217.86 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.

F14 · ownership.nature: The securities are held by a revocable family trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 15

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Revocable Trust

Disclosed balance after: 93,518

F17 · price: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $215.79 to $216.78 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.

F14 · ownership.nature: The securities are held by a revocable family trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 14

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Irrevocable Trust

Disclosed balance after: 50,944

F15 · kind: Represents receipt of shares in the distribution in kind described in footnote (10).

F16 · ownership.nature: The securities are held by an irrevocable GST trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 13

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Revocable Trust

Disclosed balance after: 99,599

F13 · kind: Represents receipt of shares in the distributions in kind described in footnotes (6) and (10).

F14 · ownership.nature: The securities are held by a revocable family trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 12

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Foundation Capital Management Co. LF II, L.L.C.

Disclosed balance after: 1,368

F11 · kind: Represents receipt of shares in the distribution in kind described in footnote (7).

F12 · ownership.nature: Securities are directly held by FCMLF2. The Reporting Person is a manager of FCMLF2 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 11

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Foundation Capital Management Co. VIII, L.L.C.

Disclosed balance after: 0

F10 · kind: Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FCM8 to its members without additional consideration.

F9 · ownership.nature: Securities are directly held by FCM8. The Reporting Person is a manager of FCM8 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.

SEC source: 0001567929-26-000003 · form4-08182026_100849.xml · nonDerivative · entry 10

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Foundation Capital Management Co. VIII, L.L.C.

Disclosed balance after: 449,885

F8 · kind: Represents receipt of shares in the distributions in kind described in footnotes (5) and (6).

F9 · ownership.nature: Securities are directly held by FCM8. The Reporting Person is a manager of FCM8 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.