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A

$ Value

$0

Shares

40,000

Price

$0

Filed

Feb 3

Insider

Name

Aiyar Ram

Title

President and CEO

CIK

0001997920

Roles

Director Officer

Transaction Details

Transaction Date

2026-02-02

Code

A

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

40,000

Footnotes

Represents shares of common stock issuable upon settlement of a restricted stock unit (RSU) granted under the Issuer's 2023 Stock Option and Incentive Plan (the 2023 Plan) that will vest as follows: 50% on August 3, 2026 and 50% on February 1, 2027, in each case subject to the Reporting Person's continued service on each such vesting date. | Shares held by The Ram Aiyar Irrevocable Trust, for which the Reporting Person serves as trustee. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. | The shares subject to the option vest in 48 equal monthly installments commencing from February 2, 2026, subject to the Reporting Person's continued service on each such vesting date.

Filing Info

Accession No.

0001193125-26-035591

Form Type

4

Issuer CIK

0001703647

Aiyar Ram's History

Date Ticker Type Value
2026-02-02 KRRO A $0
2026-02-02 KRRO A $0

Other Insiders at KRRO (90d)

Insider Bought Sold Last
Lynx1 Capital Management LP $6K 2026-03-31
Aiyar Ram
President and CEO
2026-02-02
Chappell Todd
Chief Operating Officer
2026-02-02
Cerio Jeffrey
General Counsel
2026-02-02
Dolan Oliver
Senior Vice President, Finance
2026-02-02
Vincent Loic A
Chief Scientific Officer
2026-02-02