InsiderTrades

Form 4 for CRBU Caribou Biosciences, Inc.

Accepted 2021-10-13 00:00:00 ET · period of report 2021-10-12 · accession 0001209191-21-060424 · 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
DM 2021-10-13 2021-10-12 CRBU Kanner Steven CSO P - Purchase $1.92 +114.9K 200.4K +134% +$220.8K
DM 2021-10-13 2021-10-12 CRBU Kanner Steven CSO X - OptEx $0.00 -114.9K 132.1K -47% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2021-10-12 P A 99,548 $1.81 199,719 D — —
2 Common Common Stock 2021-10-12 P A 14,614 $2.69 215,031 D — — (F2) The exercise price for this stock option was incorrectly reported as $2.68 per share on the reporting person's Form 3 filed on July 22, 2021.
3 Common Common Stock 2021-10-12 P A 698 $1.81 200,417 D — —
4 Derivative Option to purchase Common Stock 2021-10-12 X D 698 $0.00 4,879 D $1.81 · — to 2028-03-07 698 Common Stock (F3) This option became fully exercisable on June 30, 2021.
5 Derivative Option to purchase Common Stock 2021-10-12 X D 99,548 $0.00 71,840 D $1.81 · — to 2027-07-11 99,548 Common Stock (F3) This option became fully exercisable on June 30, 2021.
6 Derivative Option to purchase Common Stock 2021-10-12 X D 14,614 $0.00 132,134 D $2.69 · — to 2029-09-30 14,614 Common Stock (F2) The exercise price for this stock option was incorrectly reported as $2.68 per share on the reporting person's Form 3 filed on July 22, 2021. (F4) 1/4th of the shares subject to this option vested on October 1, 2020 and an additional 1/48th of the aggregate number of shares subject to the option have vested or will vest on the corresponding day of each month thereafter, subject to the reporting person's continued services to the Issuer through the applicable vesting dates.