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$ Value

Shares

212,188

Price

Filed

Mar 26

Insider

Name

Choudary Kiran Kumar

Title

Chief Financial Officer

CIK

0002020220

Roles

Officer

Transaction Details

Transaction Date

2026-03-24

Code

C

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

Footnotes

Includes 367 shares purchased through the Issuer's employee stock purchase plan on March 20, 2026. | This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain Restricted Stock Units (RSUs). | Each RSU represents a contingent right to receive one share of Class B Common Stock. | The RSUs shall vest as follows: 1/16 of the shares subject to the RSU vested on June 15, 2022, and 1/16 of the shares subject to the RSU vest every quarter thereafter, and a liquidity event-based vesting condition which was satisfied upon the effectiveness of the registration statement on Form S-1 filed by the Issuer in connection with the Issuer's initial public offering, all subject to the Reporting Person continuing to have a Service Relationship (as defined in the Issuer's Amended and Restated 2014 Stock Option and Grant Plan). | The RSUs shall vest as follows: 75,000 shares subject to the RSU vested on March 15, 2024, 125,000 shares subject to the RSU vest on March 15, 2025, 150,000 shares vest on March 15, 2026, and 200,000 shares vest on March 15, 2027, and a liquidity event-based vesting condition which was satisfied upon the effectiveness of the registration statement on Form S-1 filed by the Issuer in connection with the Issuer's initial public offering, all subject to the Reporting Person continuing to have a Service Relationship (as defined in the Issuer's Amended and Restated 2014 Stock Option and Grant Plan). | The RSUs shall vest as follows: 10% of the shares subject to the RSU vest on March 15, 2025, 20% of the shares subject to the RSU vest on March 15, 2026, 35% of the shares subject to the RSU vest on March 15, 2027, and 35% of the shares subject to the RSU vest on March 15, 2028, and a liquidity event-based vesting condition which was satisfied upon the effectiveness of the registration statement on Form S-1 filed by the Issuer in connection with the Issuer's initial public offering, all subject to the Reporting Person continuing to have a Service Relationship (as defined in the Issuer's Amended and Restated 2014 Stock Option and Grant Plan). | 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.

Filing Info

Accession No.

0002020220-26-000010

Form Type

4

Issuer CIK

0001943896

Choudary Kiran Kumar's History

Date Ticker Type Value
2026-04-14 RBRK A $0
2026-04-07 RBRK C $0
2026-04-07 RBRK $198K
2026-04-07 RBRK $515K
2026-04-07 RBRK $273K
2026-04-07 RBRK $48K
2026-04-07 RBRK M $0
2026-04-07 RBRK M $0
2026-04-07 RBRK C $0
2026-03-24 RBRK C $0

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MCLAUGHLIN MARK D $502K 2026-03-30
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Nithrakashyap Arvind
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$1.4M 2026-04-14
McCarthy Brian K.
Pres.,Global Sales & Field Ops
2026-01-31
Choudary Kiran Kumar
Chief Financial Officer
$8.0M 2026-04-14