InsiderTrades

Form 4 for CRBU Caribou Biosciences, Inc.

Accepted 2023-06-09 00:00:00 ET · period of report 2023-06-08 · accession 0001619856-23-000073 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2023-06-09 2023-06-08 CRBU Haurwitz Rachel E. Pres, CEO, Dir M - OptEx $2.96 +10.0K 40.0K +33% +$29.6K
D 2023-06-09 2023-06-08 CRBU Haurwitz Rachel E. Pres, CEO, Dir M - OptEx $0.00 -10.0K 96.3K -9% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2023-06-08 M A 10,000 $2.96 40,000 D — —
2 Derivative Option to purchase Common Stock 2023-06-08 M D 10,000 $0.00 96,350 D $2.96 · — to 2023-06-11 10,000 Common Stock (F2) 1/4th of the shares subject to this option vested on June 12, 2019 and an additional 1/48th of the aggregate number of shares subject to the option vested on the corresponding day of each month thereafter until the option became fully vested on June 12, 2022.