Caribou Biosciences, Inc.

Kelly Timothy P sold 6,228 shares of CRBU on 25 February. They now own 73,125 CRBU shares.

Khan Ruhi Ahmad sold 6,938 shares of CRBU on 24 February. They now own 104,998 CRBU shares.

Albertson Tina M. sold 1,066 shares of CRBU on 24 February. They now own 68,523 CRBU shares.

Mcclung Barbara G sold 6,938 shares of CRBU on 24 February. They now own 481,564 CRBU shares.

Kelly Timothy P sold 3,147 shares of CRBU on 24 February. They now own 79,353 CRBU shares.

Whiting Nancy bought 45,000 shares of CRBU on 20 February. They now own 45,000 CRBU shares.

Sacks Natalie bought 45,000 shares of CRBU on 20 February. They now own 45,000 CRBU shares.

Haurwitz Rachel E. bought 682,500 shares of CRBU on 20 February. They now own 682,500 CRBU shares.

Haurwitz Rachel E. bought 151,700 shares of CRBU on 20 February. They now own 447,150 CRBU shares.

Richardson-Heron Dara bought 45,000 shares of CRBU on 20 February. They now own 45,000 CRBU shares.

Ryali Sriram bought 55,000 shares of CRBU on 20 February. They now own 72,360 CRBU shares.

Albertson Tina M. bought 55,000 shares of CRBU on 20 February. They now own 69,589 CRBU shares.

Albertson Tina M. bought 247,500 shares of CRBU on 20 February. They now own 247,500 CRBU shares.

Kelly Timothy P bought 202,500 shares of CRBU on 20 February. They now own 202,500 CRBU shares.

Johnson David Lee bought 45,000 shares of CRBU on 20 February. They now own 45,000 CRBU shares.

Braunstein Scott bought 45,000 shares of CRBU on 20 February. They now own 45,000 CRBU shares.

Khan Ruhi Ahmad bought 45,000 shares of CRBU on 20 February. They now own 111,936 CRBU shares.

Guggenhime Andrew bought 45,000 shares of CRBU on 20 February. They now own 45,000 CRBU shares.

Mcclung Barbara G bought 202,500 shares of CRBU on 20 February. They now own 202,500 CRBU shares.

Mcclung Barbara G bought 45,000 shares of CRBU on 20 February. They now own 488,502 CRBU shares.

Kelly Timothy P bought 45,000 shares of CRBU on 20 February. They now own 82,500 CRBU shares.

Zheng Ran bought 45,000 shares of CRBU on 20 February. They now own 45,000 CRBU shares.

Khan Ruhi Ahmad bought 202,500 shares of CRBU on 20 February. They now own 202,500 CRBU shares.

Ryali Sriram bought 247,500 shares of CRBU on 20 February. They now own 247,500 CRBU shares.

Haurwitz Rachel E. bought 20,000 shares of CRBU on 14 March. They now own 3,369,395 CRBU shares.

Kanner Steven sold 3,564 shares of CRBU on 21 February. They now own 431,556 CRBU shares.

Khan Ruhi Ahmad sold 3,564 shares of CRBU on 21 February. They now own 66,936 CRBU shares.

Mcclung Barbara G sold 3,564 shares of CRBU on 21 February. They now own 443,502 CRBU shares.

Sacks Natalie bought 40,500 shares of CRBU on 20 February. They now own 40,500 CRBU shares.

Haurwitz Rachel E. bought 136,750 shares of CRBU on 20 February. They now own 295,450 CRBU shares.

Kanner Steven bought 170,000 shares of CRBU on 20 February. They now own 170,000 CRBU shares.

Kelly Timothy P bought 170,000 shares of CRBU on 20 February. They now own 170,000 CRBU shares.

Khan Ruhi Ahmad bought 170,000 shares of CRBU on 20 February. They now own 170,000 CRBU shares.

Richardson-Heron Dara bought 40,500 shares of CRBU on 20 February. They now own 40,500 CRBU shares.

Johnson David Lee bought 40,500 shares of CRBU on 20 February. They now own 40,500 CRBU shares.

Kanner Steven bought 37,500 shares of CRBU on 20 February. They now own 435,120 CRBU shares.

Mcclung Barbara G bought 170,000 shares of CRBU on 20 February. They now own 170,000 CRBU shares.

Braunstein Scott bought 40,500 shares of CRBU on 20 February. They now own 40,500 CRBU shares.

Kelly Timothy P bought 37,500 shares of CRBU on 20 February. They now own 37,500 CRBU shares.

Guggenhime Andrew bought 40,500 shares of CRBU on 20 February. They now own 40,500 CRBU shares.

Mcclung Barbara G bought 37,500 shares of CRBU on 20 February. They now own 447,066 CRBU shares.

Zheng Ran bought 40,500 shares of CRBU on 20 February. They now own 40,500 CRBU shares.

Whiting Nancy bought 40,500 shares of CRBU on 20 February. They now own 40,500 CRBU shares.

Albertson Tina M. bought 66,137 shares of CRBU on 20 February. They now own 66,137 CRBU shares.

Haurwitz Rachel E. bought 618,250 shares of CRBU on 20 February. They now own 618,250 CRBU shares.

Khan Ruhi Ahmad bought 37,500 shares of CRBU on 20 February. They now own 70,500 CRBU shares.

Albertson Tina M. bought 14,589 shares of CRBU on 20 February. They now own 14,589 CRBU shares.

Ryali Sriram bought 17,360 shares of CRBU on 29 January. They now own 17,360 CRBU shares.

Ryali Sriram bought 300,000 shares of CRBU on 10 January. They now own 300,000 CRBU shares.

Ryali Sriram bought 0 shares of CRBU on 2 January. They now own 0 CRBU shares.

Fischesser Ryan bought 25,000 shares of CRBU on 20 November. They now own 118,854 CRBU shares.

Fischesser Ryan bought 0 shares of CRBU on 27 September. They now own 93,854 CRBU shares.

Fischesser Ryan bought 40,000 shares of CRBU on 27 September. They now own 0 CRBU shares.

Fischesser Ryan bought 13,065 shares of CRBU on 27 September. They now own 0 CRBU shares.

Fischesser Ryan bought 48,000 shares of CRBU on 27 September. They now own 0 CRBU shares.

Fischesser Ryan bought 36,000 shares of CRBU on 27 September. They now own 0 CRBU shares.

Albertson Tina M. bought 300,000 shares of CRBU on 19 August. They now own 300,000 CRBU shares.

Albertson Tina M. bought 0 shares of CRBU on 12 August. They now own 0 CRBU shares.

Kanner Steven bought 33,000 shares of CRBU on 20 February. They now own 387,037 CRBU shares.

Braunstein Scott bought 39,500 shares of CRBU on 20 February. They now own 39,500 CRBU shares.

O'Byrne Jason bought 33,000 shares of CRBU on 20 February. They now own 59,224 CRBU shares.

Sacks Natalie bought 39,500 shares of CRBU on 20 February. They now own 39,500 CRBU shares.

Haurwitz Rachel E. bought 546,950 shares of CRBU on 20 February. They now own 546,950 CRBU shares.

Guggenhime Andrew bought 39,500 shares of CRBU on 20 February. They now own 39,500 CRBU shares.

Kanner Steven bought 153,000 shares of CRBU on 20 February. They now own 153,000 CRBU shares.

Khan Ruhi Ahmad bought 153,000 shares of CRBU on 20 February. They now own 153,000 CRBU shares.

Mcclung Barbara G bought 33,000 shares of CRBU on 20 February. They now own 409,566 CRBU shares.

Haurwitz Rachel E. bought 118,700 shares of CRBU on 20 February. They now own 158,700 CRBU shares.

Johnson David Lee bought 39,500 shares of CRBU on 20 February. They now own 39,500 CRBU shares.

O'Byrne Jason bought 153,000 shares of CRBU on 20 February. They now own 153,000 CRBU shares.

Zheng Ran bought 39,500 shares of CRBU on 20 February. They now own 39,500 CRBU shares.

Khan Ruhi Ahmad bought 33,000 shares of CRBU on 20 February. They now own 33,000 CRBU shares.

Mcclung Barbara G bought 153,000 shares of CRBU on 20 February. They now own 153,000 CRBU shares.

Richardson-Heron Dara bought 39,500 shares of CRBU on 20 February. They now own 39,500 CRBU shares.

Whiting Nancy bought 39,500 shares of CRBU on 20 February. They now own 39,500 CRBU shares.

Kanner Steven sold 30,577 shares of CRBU on 6 February. They now own 21,623 CRBU shares.

Kanner Steven bought 30,577 shares of CRBU on 6 February. They now own 354,037 CRBU shares.

Kelly Timothy P bought 300,000 shares of CRBU on 8 January. They now own 300,000 CRBU shares.

Kelly Timothy P bought 0 shares of CRBU on 1 January. They now own 0 CRBU shares.

Haurwitz Rachel E. bought 10,000 shares of CRBU on 8 June. They now own 40,000 CRBU shares.

Haurwitz Rachel E. sold 10,000 shares of CRBU on 8 June. They now own 96,350 CRBU shares.

Haurwitz Rachel E. bought 10,000 shares of CRBU on 20 March. They now own 30,000 CRBU shares.

Haurwitz Rachel E. sold 10,000 shares of CRBU on 20 March. They now own 106,350 CRBU shares.

O'Byrne Jason bought 131,000 shares of CRBU on 21 February. They now own 131,000 CRBU shares.

Kanner Steven bought 131,000 shares of CRBU on 21 February. They now own 131,000 CRBU shares.

Khan Ruhi Ahmad bought 131,000 shares of CRBU on 21 February. They now own 131,000 CRBU shares.

Sacks Natalie bought 21,500 shares of CRBU on 21 February. They now own 21,500 CRBU shares.

Guggenhime Andrew bought 21,500 shares of CRBU on 21 February. They now own 21,500 CRBU shares.

Whiting Nancy bought 21,500 shares of CRBU on 21 February. They now own 21,500 CRBU shares.

Rizvi Syed Ali-Aamir bought 131,000 shares of CRBU on 21 February. They now own 131,000 CRBU shares.

Zheng Ran bought 21,500 shares of CRBU on 21 February. They now own 21,500 CRBU shares.

Braunstein Scott bought 21,500 shares of CRBU on 21 February. They now own 21,500 CRBU shares.

Haurwitz Rachel E. bought 510,500 shares of CRBU on 21 February. They now own 510,500 CRBU shares.

Richardson-Heron Dara bought 21,500 shares of CRBU on 21 February. They now own 21,500 CRBU shares.

Mcclung Barbara G bought 131,000 shares of CRBU on 21 February. They now own 131,000 CRBU shares.

Johnson David Lee bought 21,500 shares of CRBU on 21 February. They now own 21,500 CRBU shares.

Rizvi Syed Ali-Aamir sold 5,627 shares of CRBU on 19 January. They now own 59,373 CRBU shares.

Kanner Steven bought 21,401 shares of CRBU on 2 December. They now own 323,460 CRBU shares.

Kanner Steven sold 21,401 shares of CRBU on 2 December. They now own 52,200 CRBU shares.

Fischesser Ryan bought 2,839 shares of CRBU on 6 October. They now own 113,205 CRBU shares.

Fischesser Ryan sold 10,000 shares of CRBU on 6 October. They now own 110,366 CRBU shares.

Fischesser Ryan bought 2,839 shares of CRBU on 6 October. They now own 116,044 CRBU shares.

Fischesser Ryan sold 2,839 shares of CRBU on 6 October. They now own 1,704 CRBU shares.

Fischesser Ryan sold 2,839 shares of CRBU on 6 October. They now own 1,704 CRBU shares.

Fischesser Ryan sold 2,839 shares of CRBU on 6 October. They now own 15,337 CRBU shares.

Fischesser Ryan sold 2,839 shares of CRBU on 6 October. They now own 15,337 CRBU shares.

Mcclung Barbara G sold 27,518 shares of CRBU on 15 September. They now own 47,318 CRBU shares.

Mcclung Barbara G bought 77 shares of CRBU on 15 September. They now own 349,048 CRBU shares.

Mcclung Barbara G sold 77 shares of CRBU on 15 September. They now own 0 CRBU shares.

Mcclung Barbara G bought 27,518 shares of CRBU on 15 September. They now own 376,566 CRBU shares.

Kanner Steven sold 43,248 shares of CRBU on 25 August. They now own 73,601 CRBU shares.

Kanner Steven bought 43,248 shares of CRBU on 25 August. They now own 345,307 CRBU shares.

Kanner Steven sold 43,248 shares of CRBU on 25 August. They now own 73,601 CRBU shares.

Kanner Steven sold 43,248 shares of CRBU on 25 August. They now own 302,059 CRBU shares.

Khan Ruhi Ahmad bought 70,000 shares of CRBU on 22 August. They now own 70,000 CRBU shares.

Khan Ruhi Ahmad bought 70,000 shares of CRBU on 22 August. They now own 70,000 CRBU shares.

Fischesser Ryan bought 4,848 shares of CRBU on 22 August. They now own 120,366 CRBU shares.

Johnson David Lee bought 44,000 shares of CRBU on 18 May. They now own 44,000 CRBU shares.

Johnson David Lee bought 44,000 shares of CRBU on 18 May. They now own 44,000 CRBU shares.

Kanner Steven sold 6,114 shares of CRBU on 13 May. They now own 116,849 CRBU shares.

Kanner Steven bought 6,114 shares of CRBU on 13 May. They now own 302,059 CRBU shares.

Kanner Steven bought 68,306 shares of CRBU on 13 May. They now own 295,945 CRBU shares.

Kanner Steven sold 68,306 shares of CRBU on 13 May. They now own 3,534 CRBU shares.

Johnson David Lee bought 0 shares of CRBU on 11 May. They now own 0 CRBU shares.

Haurwitz Rachel E. sold 10,000 shares of CRBU on 9 May. They now own 116,350 CRBU shares.

Haurwitz Rachel E. bought 10,000 shares of CRBU on 9 May. They now own 20,000 CRBU shares.

Fischesser Ryan sold 1,138 shares of CRBU on 5 May. They now own 18,176 CRBU shares.

Fischesser Ryan bought 1,138 shares of CRBU on 5 May. They now own 115,518 CRBU shares.

Fischesser Ryan sold 1,138 shares of CRBU on 5 May. They now own 18,176 CRBU shares.

Fischesser Ryan bought 1,136 shares of CRBU on 5 May. They now own 114,380 CRBU shares.

Fischesser Ryan sold 1,136 shares of CRBU on 5 May. They now own 4,543 CRBU shares.

Fischesser Ryan bought 1,138 shares of CRBU on 15 March. They now own 113,244 CRBU shares.

Fischesser Ryan bought 1,136 shares of CRBU on 15 March. They now own 112,106 CRBU shares.

Fischesser Ryan sold 1,136 shares of CRBU on 15 March. They now own 5,679 CRBU shares.

Fischesser Ryan sold 1,136 shares of CRBU on 15 March. They now own 5,679 CRBU shares.

Fischesser Ryan sold 1,138 shares of CRBU on 15 March. They now own 19,314 CRBU shares.

Kanner Steven bought 1,549 shares of CRBU on 4 March. They now own 227,639 CRBU shares.

Kanner Steven sold 9,171 shares of CRBU on 4 March. They now own 122,963 CRBU shares.

Kanner Steven sold 1,549 shares of CRBU on 4 March. They now own 230,365 CRBU shares.

Kanner Steven bought 9,171 shares of CRBU on 4 March. They now own 226,090 CRBU shares.

O'Byrne Jason sold 24,336 shares of CRBU on 8 February. They now own 412,865 CRBU shares.

O'Byrne Jason bought 24,336 shares of CRBU on 8 February. They now own 24,336 CRBU shares.

Haurwitz Rachel E. sold 10,000 shares of CRBU on 26 January. They now own 126,350 CRBU shares.

Haurwitz Rachel E. bought 10,000 shares of CRBU on 26 January. They now own 3,359,395 CRBU shares.

Haurwitz Rachel E. bought 10,000 shares of CRBU on 26 January. They now own 10,000 CRBU shares.

Rizvi Syed Ali-Aamir bought 60,000 shares of CRBU on 25 January. They now own 65,000 CRBU shares.

Rizvi Syed Ali-Aamir bought 161,250 shares of CRBU on 25 January. They now own 161,250 CRBU shares.

Rizvi Syed Ali-Aamir sold 0 shares of CRBU on 18 January. They now own 5,000 CRBU shares.

Fischesser Ryan sold 569 shares of CRBU on 11 January. They now own 6,815 CRBU shares.

Fischesser Ryan bought 6,818 shares of CRBU on 11 January. They now own 109,082 CRBU shares.

Fischesser Ryan bought 569 shares of CRBU on 11 January. They now own 102,264 CRBU shares.

Fischesser Ryan sold 6,818 shares of CRBU on 11 January. They now own 20,452 CRBU shares.

Haurwitz Rachel E. bought 0 shares of CRBU on 31 December. They now own 0 CRBU shares.

Braunstein Scott bought 27,500 shares of CRBU on 20 December. They now own 27,500 CRBU shares.

Kanner Steven bought 147,000 shares of CRBU on 20 December. They now own 147,000 CRBU shares.

Fischesser Ryan bought 1,136 shares of CRBU on 20 December. They now own 101,695 CRBU shares.

Fischesser Ryan bought 40,000 shares of CRBU on 20 December. They now own 40,000 CRBU shares.

Mcclung Barbara G bought 147,000 shares of CRBU on 20 December. They now own 147,000 CRBU shares.

Guggenhime Andrew bought 27,500 shares of CRBU on 20 December. They now own 27,500 CRBU shares.

Whiting Nancy bought 13,750 shares of CRBU on 20 December. They now own 13,750 CRBU shares.

Whiting Nancy bought 13,060 shares of CRBU on 20 December. They now own 13,060 CRBU shares.

Haurwitz Rachel E. bought 411,000 shares of CRBU on 20 December. They now own 411,000 CRBU shares.

O'Byrne Jason bought 147,000 shares of CRBU on 20 December. They now own 147,000 CRBU shares.

Zheng Ran bought 13,750 shares of CRBU on 20 December. They now own 13,750 CRBU shares.

Fischesser Ryan sold 1,136 shares of CRBU on 20 December. They now own 7,384 CRBU shares.

Sacks Natalie bought 27,500 shares of CRBU on 20 December. They now own 27,500 CRBU shares.

Mcclung Barbara G sold 6,115 shares of CRBU on 7 December. They now own 74,836 CRBU shares.

Mcclung Barbara G bought 12 shares of CRBU on 7 December. They now own 342,856 CRBU shares.

Mcclung Barbara G sold 12 shares of CRBU on 7 December. They now own 77 CRBU shares.

Mcclung Barbara G bought 6,115 shares of CRBU on 7 December. They now own 348,971 CRBU shares.

Khan Ruhi Ahmad bought 225,000 shares of CRBU on 15 November. They now own 225,000 CRBU shares.

Richardson-Heron Dara bought 44,000 shares of CRBU on 11 November. They now own 44,000 CRBU shares.

Khan Ruhi Ahmad bought 0 shares of CRBU on 8 November. They now own 0 CRBU shares.

Richardson-Heron Dara bought 0 shares of CRBU on 4 November. They now own 0 CRBU shares.

Mcclung Barbara G bought 9,176 shares of CRBU on 20 October. They now own 342,801 CRBU shares.

Mcclung Barbara G sold 9,176 shares of CRBU on 20 October. They now own 80,951 CRBU shares.

Mcclung Barbara G sold 43 shares of CRBU on 20 October. They now own 89 CRBU shares.

Mcclung Barbara G bought 43 shares of CRBU on 20 October. They now own 342,844 CRBU shares.

Kanner Steven bought 14,614 shares of CRBU on 12 October. They now own 215,031 CRBU shares.

Kanner Steven sold 698 shares of CRBU on 12 October. They now own 4,879 CRBU shares.

Kanner Steven bought 99,548 shares of CRBU on 12 October. They now own 199,719 CRBU shares.

Kanner Steven sold 99,548 shares of CRBU on 12 October. They now own 71,840 CRBU shares.

Kanner Steven bought 698 shares of CRBU on 12 October. They now own 200,417 CRBU shares.

Kanner Steven sold 14,614 shares of CRBU on 12 October. They now own 132,134 CRBU shares.

Fischesser Ryan bought 1,746 shares of CRBU on 11 October. They now own 100,559 CRBU shares.

Fischesser Ryan sold 1,746 shares of CRBU on 11 October. They now own 8,520 CRBU shares.

Zheng Ran bought 44,000 shares of CRBU on 1 October. They now own 44,000 CRBU shares.

Zheng Ran bought 0 shares of CRBU on 24 September. They now own 0 CRBU shares.

Whiting Nancy bought 44,000 shares of CRBU on 8 September. They now own 44,000 CRBU shares.

Whiting Nancy bought 0 shares of CRBU on 24 August. They now own 0 CRBU shares.

Fmr Llc bought 1,070,427 shares of CRBU on 27 July. They now own 1,840,937 CRBU shares.

Fmr Llc bought 17,572 shares of CRBU on 27 July. They now own 17,572 CRBU shares.

Fmr Llc bought 1,464,775 shares of CRBU on 27 July. They now own 1,464,775 CRBU shares.

Fmr Llc bought 770,510 shares of CRBU on 27 July. They now own 770,510 CRBU shares.

Fmr Llc sold 423,823 shares of CRBU on 27 July. They now own 0 CRBU shares.

Fmr Llc sold 805,707 shares of CRBU on 27 July. They now own 0 CRBU shares.

Fischesser Ryan sold 0 shares of CRBU on 22 July. They now own 98,813 CRBU shares.

Mcclung Barbara G sold 0 shares of CRBU on 22 July. They now own 333,626 CRBU shares.

Fischesser Ryan sold 10,266 shares of CRBU on 22 July. They now own 0 CRBU shares.

Fischesser Ryan sold 27,270 shares of CRBU on 22 July. They now own 0 CRBU shares.