Insider · CIK 0001871131

Kanner Steven

Reports to the SEC for 1 company · BERKELEY, CA

sec.gov

Transactions

Companies

Filings

CIK

0001871131

Forms 4 and 5

Insider transactions

28 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2025-02-21	CRBUCaribou Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−3,564 sh	$1.35	−$4,811.4	431,556
2025-02-20	CRBUCaribou Biosciences, Inc.A Award	Chief Scientific Officer	AAward	+37.5K sh	—	—	435,120
2025-02-20	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockA Award	Chief Scientific Officer	AAward	+170K sh	—	—	170,000
2024-02-20	CRBUCaribou Biosciences, Inc.A Award	Chief Scientific Officer	AAward	+33K sh	—	—	387,037
2024-02-20	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockA Award	Chief Scientific Officer	AAward	+153K sh	—	—	153,000
2024-02-06	CRBUCaribou Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+30.6K sh	$2.69	+$82.3K	354,037
2024-02-06	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockM Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−30.6K sh	—	—	21,623
2023-02-21	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockA Award	Chief Scientific Officer	AAward	+131K sh	—	—	131,000
2022-12-02	CRBUCaribou Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+21.4K sh	$2.69	+$57.6K	323,460
2022-12-02	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockM Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−21.4K sh	$2.69	−$57.6K	52,200
2022-08-25	CRBUCaribou Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+43.2K sh	$2.69	+$116K	345,307
2022-08-25	CRBUCaribou Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−43.2K sh	$11.22	−$485K	302,059
2022-08-25	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockM Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−43.2K sh	—	—	73,601
2022-05-13	CRBUCaribou Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+68.3K sh	$1.81	+$124K	295,945
2022-05-13	CRBUCaribou Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+6,114 sh	$2.69	+$16.4K	302,059
2022-05-13	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockM Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−68.3K sh	—	—	3,534
2022-05-13	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockM Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−6,114 sh	—	—	116,849
2022-03-04	CRBUCaribou Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+9,171 sh	$2.69	+$24.7K	226,090
2022-03-04	CRBUCaribou Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+1,549 sh	$4.11	+$6,366.39	227,639
2022-03-04	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockM Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−9,171 sh	—	—	122,963
2022-03-04	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockM Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−1,549 sh	—	—	230,365
2021-12-20	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockA Award	Chief Scientific Officer	AAward	+147K sh	—	—	147,000
2021-10-12	CRBUCaribou Biosciences, Inc.P Purchase	Chief Scientific Officer	PPurchase	+99.5K sh	$1.81	+$180K	199,719
2021-10-12	CRBUCaribou Biosciences, Inc.P Purchase	Chief Scientific Officer	PPurchase	+698 sh	$1.81	+$1,263.38	200,417
2021-10-12	CRBUCaribou Biosciences, Inc.P Purchase	Chief Scientific Officer	PPurchase	+14.6K sh	$2.69	+$39.3K	215,031
2021-10-12	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockX Exercise of In-Money	Chief Scientific Officer	XExercise of In-Money	−99.5K sh	—	—	71,840
2021-10-12	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockX Exercise of In-Money	Chief Scientific Officer	XExercise of In-Money	−698 sh	—	—	4,879
2021-10-12	CRBUCaribou Biosciences, Inc. · Option to purchase Common StockX Exercise of In-Money	Chief Scientific Officer	XExercise of In-Money	−14.6K sh	—	—	132,134

Recent filings

Accepted (ET)
Feb 214
Kanner Steven0001871131-25-000003
SEC(opens sec.gov)
Feb 224
Kanner Steven0001628280-24-006419
SEC(opens sec.gov)
Feb 84
Kanner Steven0001871131-24-000002
SEC(opens sec.gov)
Feb 234
Kanner Steven0001619856-23-000027
SEC(opens sec.gov)
Dec 24
Kanner Steven0001619856-22-000031
SEC(opens sec.gov)
Aug 264
Kanner Steven0001209191-22-047748
SEC(opens sec.gov)
May 174
Kanner Steven0001209191-22-029893
SEC(opens sec.gov)
Mar 74
Kanner Steven0001209191-22-016872
SEC(opens sec.gov)

Companies

Caribou Biosciences, Inc.Chief Scientific OfficerCRBU

Address

C/O CARIBOU BIOSCIENCES, INC. 2929 7TH STREET, SUITE 105

BERKELEY, CA, 94710