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Zheng Ran profile photo

Ran Zheng

CIK: 0001885914

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (100.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

Caribou Biosciences, Inc. logo
CRBU

Caribou Biosciences, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (2 total)

  • Caribou Biosciences, Inc. logo
    CRBU

    Caribou Biosciences, Inc.

    Feb 20, 2026
    Award(A)

    Option to purchase Common Stock

    Direct
    45K shares-
  • Caribou Biosciences, Inc. logo
    CRBU

    Caribou Biosciences, Inc.

    Feb 20, 2025
    Award(A)

    Option to purchase Common Stock

    Direct
    40.5K shares-

1-2 of 2

About Zheng Ran

Zheng Ran (SEC CIK 0001885914) files insider reports with the SEC as Director of Caribou Biosciences, Inc. (CRBU).

Signal8 holds 2 ownership filings by Zheng Ran, all Form 4s, filed between Feb 21, 2025 and Feb 20, 2026. Those filings report 2 transactions, from Feb 20, 2025 to Feb 20, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Zheng Ran's filings is in BERKELEY, CA.

Recent filings by Zheng Ran

  • Feb 20, 2026: Grant or award of CRBU derivative securities (Form 4, code A).
  • Feb 20, 2025: Grant or award of CRBU derivative securities (Form 4, code A).

Other insiders filing for Caribou Biosciences, Inc. (CRBU)

How to read Form 4 transaction codes