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CIK 0001619856 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

Caribou Biosciences, Inc.

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Ticker
CRBU
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
453728228
Phone
510-982-6030
Business address
2929 7TH STREET, SUITE 105, BERKELEY, CA, 94710
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2022-03-04 Kanner Steven Chief Scientific Officer Option exercise +9,171 $2.69 $25K 226,090
2022-03-04 Kanner Steven Chief Scientific Officer Option exercise +1,549 $4.11 $6K 227,639
2022-03-04 Kanner Steven Chief Scientific Officer Option exercise · Option to purchase Common Stock −9,171 122,963
2022-03-04 Kanner Steven Chief Scientific Officer Option exercise · Option to purchase Common Stock −1,549 230,365
2022-02-08 O'Byrne Jason Chief Financial Officer Option exercise +24,336 $4.11 $100K 24,336
2022-02-08 O'Byrne Jason Chief Financial Officer Option exercise · Option to purchase Common Stock −24,336 412,865
2022-01-26 Haurwitz Rachel E. President and CEO Option exercise +10,000 $2.96 $30K 10,000
2022-01-26 Haurwitz Rachel E. President and CEO Option exercise · Option to purchase Common Stock −10,000 126,350
2022-01-26 Haurwitz Rachel E. President and CEO Option exercise +10,000 $2.96 $30K 3,359,395
2022-01-26 Haurwitz Rachel E. President and CEO Option exercise · Option to purchase Common Stock −10,000 126,350
2022-01-25 Rizvi Syed Ali-aamir Chief Medical Officer Grant or award +60,000 65,000
2022-01-25 Rizvi Syed Ali-aamir Chief Medical Officer Grant or award · Option to purchase common stock +161,250 161,250
2022-01-11 Fischesser Ryan VP of Finance and Controller Purchase +569 $2.69 $2K 102,264
2022-01-11 Fischesser Ryan VP of Finance and Controller Purchase +6,818 $4.11 $28K 109,082
2022-01-11 Fischesser Ryan VP of Finance and Controller Option exercise · Option to purchase Common Stock −569 6,815
2022-01-11 Fischesser Ryan VP of Finance and Controller Option exercise · Option to purchase Common Stock −6,818 20,452
2021-12-20 Whiting Nancy Director Grant or award · Option to purchase Common Stock +13,060 13,060
2021-12-20 Zheng Ran Director Grant or award · Option to purchase Common Stock +13,750 13,750
2021-12-20 Whiting Nancy Director Grant or award · Option to purchase Common Stock +13,750 13,750
2021-12-20 Sacks Natalie Director Grant or award · Option to purchase Common Stock +27,500 27,500

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