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4//SEC Filing

Zheng Ran 4

Accession 0001209191-21-058926

CIK 0001619856other

View on SEC.gov Company Profile

Filed

Oct 3, 8:00 PM ET

Accepted

Oct 4, 4:10 PM ET

Size

5.2 KB

Accession

0001209191-21-058926

Insider Transaction Report

Form 4

Period: 2021-10-01

Caribou Biosciences, Inc.CRBU

Director

Transactions

Award
Stock Option (right to buy)
2021-10-01+44,000→ 44,000 total
Exercise: $22.31Exp: 2031-09-30→ Common Stock (44,000 underlying)

Footnotes (1)

[F1]The option becomes exercisable in three equal annual installments beginning October 1, 2022.

Documents

1 file

4
doc4.xmlPrimary
FORM 4 SUBMISSION

Issuer

Caribou Biosciences, Inc.

CIK 0001619856

Entity typeother

Related Parties

1

filerCIK 0001885914

Filing Metadata

Form type: 4
Filed: Oct 3, 8:00 PM ET
Accepted: Oct 4, 4:10 PM ET
Size: 5.2 KB

View on SEC.gov