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XNAS 14 Mar, 2025 5:30 PM (EDT)



Insider Trading disclosures for Caribou Biosciences Inc

The latest disclosure was made by Andrew L. Guggenhime in Caribou Biosciences Inc where a trade of 40,500 Option to purchase Common Stock done was reported to US exchanges on Feb. 20, 2025.

Insider trading is the trading of a company’s securities by individuals with access to confidential or material non-public information about the company. A company is required to report trading by corporate officers, directors, or other company members with significant access to privileged information to the Securities and Exchange Commission (SEC).

Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Andrew L. Guggenhime Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 40,500 40,500 - - Option to purchase Common Stock
David L. Johnson Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 40,500 40,500 - - Option to purchase Common Stock
Scott Braunstein Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 40,500 40,500 - - Option to purchase Common Stock
Rachel Haurwitz Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 618,250 618,250 - - Option to purchase Common Stock
Rachel Haurwitz Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 136,750 295,450 - 0 Common Stock
Natalie Sacks Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 40,500 40,500 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Sale of securities on an exchange or to another person at price $ 1.35 per share. 20 Feb 2025 3,564 431,556 - 1.3 4,811 Common Stock
Steven B. Kanner Chief Scientific Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 37,500 435,120 - 0 Common Stock
Steven B. Kanner Chief Scientific Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 170,000 170,000 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 170,000 170,000 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 37,500 447,066 - 0 Common Stock
Barbara G. McClung Chief Legal Officer Sale of securities on an exchange or to another person at price $ 1.35 per share. 20 Feb 2025 3,564 443,502 - 1.3 4,811 Common Stock
Nancy C. Whiting Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 40,500 40,500 - - Option to purchase Common Stock
Ran Zheng Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 40,500 40,500 - - Option to purchase Common Stock
Ruhi Ahmad Khan Chief Business Officer Sale of securities on an exchange or to another person at price $ 1.35 per share. 20 Feb 2025 3,564 66,936 - 1.3 4,811 Common Stock
Ruhi Ahmad Khan Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 37,500 70,500 - 0 Common Stock
Ruhi Ahmad Khan Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 170,000 170,000 - - Option to purchase Common Stock
Dara Richardson-Heron Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2025 40,500 40,500 - - Option to purchase Common Stock
Sriram Ryali Chief Financial Officer Purchase of securities on an exchange or from another person at price $ 1.42 per share. 29 Jan 2025 17,360 17,360 - 1.4 24,651 Common Stock
Sriram Ryali Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Jan 2025 300,000 300,000 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Nov 2024 25,000 118,854 - 0 Common Stock
O’Byrne V. Jason Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 153,000 153,000 - - Option to purchase Common Stock
Ran Zheng Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 39,500 39,500 - - Option to purchase Common Stock
C. Nancy Whiting Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 39,500 39,500 - - Option to purchase Common Stock
Rachel Haurwitz Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 546,950 546,950 - - Option to purchase Common Stock
Haurwitz Rachel Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 118,700 158,700 - 0 Common Stock
Braunstein Scott Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 39,500 39,500 - - Option to purchase Common Stock
McClung G. Barbara Chief Legal Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 33,000 409,566 - 0 Common Stock
Khan Ruhi Ahmad Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 33,000 33,000 - 0 Common Stock
Dara Richardson-Heron Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 39,500 39,500 - - Option to purchase Common Stock
Natalie Sacks Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 39,500 39,500 - - Option to purchase Common Stock
G. McClung Barbara Chief Legal Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 153,000 153,000 - - Option to purchase Common Stock
Johnson L. David Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 39,500 39,500 - - Option to purchase Common Stock
Ahmad Khan Ruhi Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 153,000 153,000 - - Option to purchase Common Stock
Jason O’Byrne V. Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 33,000 59,224 - 0 Common Stock
L. Andrew Guggenhime Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 39,500 39,500 - - Option to purchase Common Stock
B. Steven Kanner Chief Scientific Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 33,000 387,037 - 0 Common Stock
B. Steven Kanner Chief Scientific Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2024 153,000 153,000 - - Option to purchase Common Stock
B. Kanner Steven Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 06 Feb 2024 30,577 21,623 - - Option to purchase Common Stock
B. Kanner Steven Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 06 Feb 2024 30,577 354,037 - 2.7 82,252 Common Stock
Rachel Haurwitz Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.96 per share. 20 Mar 2023 10,000 30,000 - 3.0 29,600 Common Stock
Rachel Haurwitz Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 20 Mar 2023 10,000 106,350 - - Option to purchase Common Stock
Andrew L. Guggenhime Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 21,500 21,500 - - Option to purchase Common Stock
David L. Johnson Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 21,500 21,500 - - Option to purchase Common Stock
Scott Braunstein Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 21,500 21,500 - - Option to purchase Common Stock
Rachel Haurwitz Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 510,500 510,500 - - Option to purchase Common Stock
Natalie Sacks Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 21,500 21,500 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 131,000 131,000 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 131,000 131,000 - - Option to purchase Common Stock
Jason V. O’Byrne Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 131,000 131,000 - - Option to purchase Common Stock
Nancy C. Whiting Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 21,500 21,500 - - Option to purchase Common Stock
Ran Zheng Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 21,500 21,500 - - Option to purchase Common Stock
Ruhi Ahmad Khan Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 131,000 131,000 - - Option to purchase Common Stock
Dara Richardson-Heron Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 21,500 21,500 - - Option to purchase Common Stock
Syed Ali-aamir Rizvi Chief Medical Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Feb 2023 131,000 131,000 - - Option to purchase Common Stock
Syed Ali-aamir Rizvi Chief Medical Officer Sale of securities on an exchange or to another person at price $ 6.31 per share. 19 Jan 2023 5,627 59,373 - 6.3 35,506 Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 02 Dec 2022 21,401 52,200 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 02 Dec 2022 21,401 323,460 - 2.7 57,569 Common Stock
Ryan Fischesser VP of Finance and Controller Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 06 Oct 2022 2,839 1,704 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Exercise or conversion of derivative security received from the company (such as an option) at price $ 4.11 per share. 06 Oct 2022 2,839 116,044 - 4.1 11,668 Common Stock
Ryan Fischesser VP of Finance and Controller Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 06 Oct 2022 2,839 113,205 - 2.7 7,637 Common Stock
Ryan Fischesser VP of Finance and Controller Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 06 Oct 2022 2,839 15,337 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Sale of securities on an exchange or to another person at price $ 10.80 per share. 06 Oct 2022 10,000 110,366 - 10.8 107,958 Common Stock
Barbara G. McClung Chief Legal Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 15 Sep 2022 27,518 376,566 - 2.7 74,023 Common Stock
Barbara G. McClung Chief Legal Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 15 Sep 2022 27,518 47,318 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 15 Sep 2022 77 0 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 15 Sep 2022 77 349,048 - 2.7 207 Common Stock
Steven B. Kanner Chief Scientific Officer Sale of securities on an exchange or to another person at price $ 11.22 per share. 25 Aug 2022 43,248 302,059 - 11.2 485,221 Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 25 Aug 2022 43,248 73,601 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 25 Aug 2022 43,248 345,307 - 2.7 116,337 Common Stock
Ryan Fischesser VP of Finance and Controller Grant, award, or other acquisition of securities at price $ 0.00 per share. 22 Aug 2022 4,848 120,366 - 0 Common Stock
Ruhi Ahmad Khan Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 22 Aug 2022 70,000 70,000 - - Option to purchase Common Stock
David L. Johnson Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 18 May 2022 44,000 44,000 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 May 2022 6,114 116,849 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 13 May 2022 6,114 302,059 - 2.7 16,447 Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 1.81 per share. 13 May 2022 68,306 295,945 - 1.8 123,634 Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 May 2022 68,306 3,534 - - Option to purchase Common Stock
Rachel Haurwitz Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.96 per share. 09 May 2022 10,000 20,000 - 3.0 29,600 Common Stock
Rachel Haurwitz Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 09 May 2022 10,000 116,350 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 15 Mar 2022 1,138 19,314 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 15 Mar 2022 1,136 5,679 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 15 Mar 2022 1,136 112,106 - 2.7 3,056 Common Stock
Ryan Fischesser VP of Finance and Controller Exercise or conversion of derivative security received from the company (such as an option) at price $ 4.11 per share. 15 Mar 2022 1,138 113,244 - 4.1 4,677 Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 04 Mar 2022 9,171 122,963 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.69 per share. 04 Mar 2022 9,171 226,090 - 2.7 24,670 Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 04 Mar 2022 1,549 230,365 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 4.11 per share. 04 Mar 2022 1,549 227,639 - 4.1 6,366 Common Stock
Jason V. O’Byrne Chief Financial Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 4.11 per share. 08 Feb 2022 24,336 24,336 - 4.1 100,021 Common Stock
Jason V. O’Byrne Chief Financial Officer Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 08 Feb 2022 24,336 412,865 - - Option to purchase Common Stock
Rachel Haurwitz Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 26 Jan 2022 10,000 126,350 - - Option to purchase Common Stock
Rachel Haurwitz Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 2.96 per share. 26 Jan 2022 10,000 10,000 - 3.0 29,600 Common Stock
Syed Ali-aamir Rizvi Chief Medical Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 25 Jan 2022 60,000 65,000 - 0 Common stock
Syed Ali-aamir Rizvi Chief Medical Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 25 Jan 2022 161,250 161,250 - - Option to purchase common stock
Ryan Fischesser VP of Finance and Controller Purchase of securities on an exchange or from another person at price $ 2.69 per share. 11 Jan 2022 569 102,264 - 2.7 1,531 Common Stock
Ryan Fischesser VP of Finance and Controller 11 Jan 2022 6,818 20,452 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller 11 Jan 2022 569 6,815 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Purchase of securities on an exchange or from another person at price $ 4.11 per share. 11 Jan 2022 6,818 109,082 - 4.1 28,022 Common Stock
Andrew L. Guggenhime Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 27,500 27,500 - - Option to purchase Common Stock
Scott Braunstein Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 27,500 27,500 - - Option to purchase Common Stock
Rachel Haurwitz Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 411,000 411,000 - - Option to purchase Common Stock
Natalie Sacks Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 27,500 27,500 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 147,000 147,000 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 147,000 147,000 - - Option to purchase Common Stock
Jason V. O’Byrne Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 147,000 147,000 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller 20 Dec 2021 1,136 7,384 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Purchase of securities on an exchange or from another person at price $ 2.69 per share. 20 Dec 2021 1,136 101,695 - 2.7 3,056 Common Stock
Ryan Fischesser VP of Finance and Controller Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 40,000 40,000 - - Option to purchase Common Stock
Nancy C. Whiting Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 13,060 13,060 - - Option to purchase Common Stock
Ran Zheng Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Dec 2021 13,750 13,750 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Purchase of securities on an exchange or from another person at price $ 2.69 per share. 07 Dec 2021 6,115 348,971 - 2.7 16,449 Common Stock
Barbara G. McClung Chief Legal Officer 07 Dec 2021 6,115 74,836 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer 07 Dec 2021 12 77 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Purchase of securities on an exchange or from another person at price $ 2.67 per share. 07 Dec 2021 12 342,856 - 2.7 32 Common Stock
Ruhi Ahmad Khan Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Nov 2021 225,000 225,000 - - Option to purchase Common Stock
Dara Richardson-Heron Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Nov 2021 44,000 44,000 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Purchase of securities on an exchange or from another person at price $ 2.70 per share. 20 Oct 2021 43 342,844 - 2.7 116 Common Stock
Barbara G. McClung Chief Legal Officer 20 Oct 2021 43 89 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer 20 Oct 2021 9,176 80,951 - - Option to purchase Common Stock
Barbara G. McClung Chief Legal Officer Purchase of securities on an exchange or from another person at price $ 2.69 per share. 20 Oct 2021 9,176 342,801 - 2.7 24,683 Common Stock
Steven B. Kanner Chief Scientific Officer Purchase of securities on an exchange or from another person at price $ 1.81 per share. 12 Oct 2021 698 200,417 - 1.8 1,263 Common Stock
Steven B. Kanner Chief Scientific Officer Purchase of securities on an exchange or from another person at price $ 1.81 per share. 12 Oct 2021 99,548 199,719 - 1.8 180,182 Common Stock
Steven B. Kanner Chief Scientific Officer Purchase of securities on an exchange or from another person at price $ 2.69 per share. 12 Oct 2021 14,614 215,031 - 2.7 39,312 Common Stock
Steven B. Kanner Chief Scientific Officer 12 Oct 2021 99,548 71,840 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer 12 Oct 2021 698 4,879 - - Option to purchase Common Stock
Steven B. Kanner Chief Scientific Officer 12 Oct 2021 14,614 132,134 - - Option to purchase Common Stock
Ryan Fischesser VP of Finance and Controller Purchase of securities on an exchange or from another person at price $ 2.69 per share. 11 Oct 2021 1,746 100,559 - 2.7 4,697 Common Stock
Ryan Fischesser VP of Finance and Controller 11 Oct 2021 1,746 8,520 - - Option to purchase Common Stock
Ran Zheng Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 01 Oct 2021 44,000 44,000 - - Stock Option (right to buy)
Nancy C. Whiting Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 08 Sep 2021 44,000 44,000 - - Stock Option (right to buy)
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
View All The Insider Trades disclosures