United States Biotechnology & Medical Research

Caribou Biosciences Inc (CRBU)

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Caribou Biosciences Inc. experienced multiple divestment activities during February 2026. Key executives, including the Chief Technology Officer, Chief Business Officer, and Chief Legal Officer, executed planned sales of company equity. These transactions represent the most recent insider trading activity, occurring over three months ago, reflecting structured liquidation patterns among senior leadership.
Ticker: CRBU Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Caribou Biosciences Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
2.9
Kelly Timothy P Chief Technology Officer Officer
Transaction date
Sale
Price
277.45
Quantity 49,198 +39.1%
Value US$2,860,036
2.9
TIMOTHY KELLY Officer Officer
Transaction date
Proposed sale
Price
396.86
Quantity 61,261
Value US$1,031,222
RUHI AHMAD KHAN Officer Officer
Transaction date
Proposed sale
Price
435.90
Quantity 58,733
Value US$3,751,783
BARBARA G MCCLUNG Officer Officer
Transaction date
Proposed sale
Price
1.96
Quantity 6,938
Value US$13,598
2.9
Kelly Timothy P Chief Technology Officer Officer
Transaction date
Sale
Price
1.96
Quantity 3,147 -3.8%
Value US$6,168
MCCLUNG BARBARA G Chief Legal Officer Officer
Transaction date
Planned sale
Price
1.96
Quantity 6,938 -1.4%
Value US$13,598
Albertson Tina M. Chief Medical Officer Officer
Transaction date
Planned sale
Price
1.96
Quantity 1,066 -1.5%
Value US$2,089
Khan Ruhi Ahmad Chief Business Officer Officer
Transaction date
Planned sale
Price
1.96
Quantity 6,938 -6.2%
Value US$13,598
2.3
Haurwitz Rachel E. President and CEO Executive Director
Transaction date
Purchase
Price
1.02
Quantity 20,000 +0.6%
Value US$20,400
MCCLUNG BARBARA G Chief Legal Officer Officer
Transaction date
Planned sale
Price
1.35
Quantity 3,564 -0.8%
Value US$4,811
Kanner Steven Chief Scientific Officer Officer
Transaction date
Planned sale
Price
1.35
Quantity 3,564 -0.8%
Value US$4,811
Khan Ruhi Ahmad Chief Business Officer Officer
Transaction date
Planned sale
Price
1.35
Quantity 3,564 -5.1%
Value US$4,811
2.7
Ryali Sriram Chief Financial Officer Officer
Transaction date
Purchase
Price
1.42
Quantity 17,360 +inf%
Value US$24,651
3.1
Rizvi Syed Ali-aamir Chief Medical Officer Officer
Transaction date
Sale
Price
6.31
Quantity 5,627 -8.7%
Value US$35,506
3.2
Fischesser Ryan VP of Finance and Controller Officer
Transaction date
Sale
Price
10.80
Quantity 10,000 -8.3%
Value US$107,958
Kanner Steven Chief Scientific Officer Officer
Transaction date
Planned sale
Price
11.22
Quantity 43,248 -12.5%
Value US$485,221
3.2
Fischesser Ryan VP of Finance and Controller Officer
Transaction date
Purchase
Price
4.11
Quantity 6,818 +6.7%
Value US$28,022
3.2
Fischesser Ryan VP of Finance and Controller Officer
Transaction date
Purchase
Price
2.69
Quantity 569 +0.6%
Value US$1,531
3.2
Fischesser Ryan VP of Finance and Controller Officer
Transaction date
Purchase
Price
2.69
Quantity 1,136 +1.1%
Value US$3,056
MCCLUNG BARBARA G Chief Legal Officer Officer
Transaction date
Purchase
Price
2.69
Quantity 6,115 +1.8%
Value US$16,449
MCCLUNG BARBARA G Chief Legal Officer Officer
Transaction date
Purchase
Price
2.69
Quantity 12 +0.0%
Value US$32
MCCLUNG BARBARA G Chief Legal Officer Officer
Transaction date
Purchase
Price
2.69
Quantity 43 +0.0%
Value US$116
MCCLUNG BARBARA G Chief Legal Officer Officer
Transaction date
Purchase
Price
2.69
Quantity 9,176 +2.8%
Value US$24,683
Kanner Steven Chief Scientific Officer Officer
Transaction date
Purchase
Price
2.69
Quantity 14,614 +7.3%
Value US$39,312
Kanner Steven Chief Scientific Officer Officer
Transaction date
Purchase
Price
1.81
Quantity 698 +0.3%
Value US$1,263
Kanner Steven Chief Scientific Officer Officer
Transaction date
Purchase
Price
1.81
Quantity 99,548 +99.4%
Value US$180,182
3.2
Fischesser Ryan VP of Finance and Controller Officer
Transaction date
Purchase
Price
2.69
Quantity 1,746 +1.8%
Value US$4,697
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-02-27 2026-02-25 S Sale
2.9
Kelly Timothy P

Chief Technology Officer

Officer
49,198 +39.1%
277.45
US$2,860,036 		49,198 +39.1% 277.45 US$2,860,036
2026-02-25 2026-02-25 PrS Proposed sale
2.9
TIMOTHY KELLY

Officer

Officer
61,261
396.86
US$1,031,222 		61,261 396.86 US$1,031,222
2026-02-25 2026-02-24 PrS Proposed sale
RUHI AHMAD KHAN

Officer

Officer
58,733
435.90
US$3,751,783 		58,733 435.90 US$3,751,783
2026-02-25 2026-02-24 PrS Proposed sale
BARBARA G MCCLUNG

Officer

Officer
6,938
1.96
US$13,598 		6,938 1.96 US$13,598
2026-02-24 2026-02-24 S Sale
2.9
Kelly Timothy P

Chief Technology Officer

Officer
3,147 -3.8%
1.96
US$6,168 		3,147 -3.8% 1.96 US$6,168
2026-02-24 2026-02-24 PlS Planned sale
MCCLUNG BARBARA G

Chief Legal Officer

Officer
6,938 -1.4%
1.96
US$13,598 		6,938 -1.4% 1.96 US$13,598
2026-02-24 2026-02-24 PlS Planned sale
Albertson Tina M.

Chief Medical Officer

Officer
1,066 -1.5%
1.96
US$2,089 		1,066 -1.5% 1.96 US$2,089
2026-02-24 2026-02-24 PlS Planned sale
Khan Ruhi Ahmad

Chief Business Officer

Officer
6,938 -6.2%
1.96
US$13,598 		6,938 -6.2% 1.96 US$13,598
2025-03-17 2025-03-14 B Purchase
2.3
Haurwitz Rachel E.

President and CEO

Executive Director
20,000 +0.6%
1.02
US$20,400 		20,000 +0.6% 1.02 US$20,400
2025-02-21 2025-02-21 PlS Planned sale
MCCLUNG BARBARA G

Chief Legal Officer

Officer
3,564 -0.8%
1.35
US$4,811 		3,564 -0.8% 1.35 US$4,811
2025-02-21 2025-02-21 PlS Planned sale
Kanner Steven

Chief Scientific Officer

Officer
3,564 -0.8%
1.35
US$4,811 		3,564 -0.8% 1.35 US$4,811
2025-02-21 2025-02-21 PlS Planned sale
Khan Ruhi Ahmad

Chief Business Officer

Officer
3,564 -5.1%
1.35
US$4,811 		3,564 -5.1% 1.35 US$4,811
2025-01-30 2025-01-29 B Purchase
2.7
Ryali Sriram

Chief Financial Officer

Officer
17,360 +inf%
1.42
US$24,651 		17,360 +inf% 1.42 US$24,651
2023-01-20 2023-01-19 S Sale
3.1
Rizvi Syed Ali-aamir

Chief Medical Officer

Officer
5,627 -8.7%
6.31
US$35,506 		5,627 -8.7% 6.31 US$35,506
2022-10-07 2022-10-06 S Sale
3.2
Fischesser Ryan

VP of Finance and Controller

Officer
10,000 -8.3%
10.80
US$107,958 		10,000 -8.3% 10.80 US$107,958
2022-08-26 2022-08-25 PlS Planned sale
Kanner Steven

Chief Scientific Officer

Officer
43,248 -12.5%
11.22
US$485,221 		43,248 -12.5% 11.22 US$485,221
2022-01-12 2022-01-11 B Purchase
3.2
Fischesser Ryan

VP of Finance and Controller

Officer
6,818 +6.7%
4.11
US$28,022 		6,818 +6.7% 4.11 US$28,022
2022-01-12 2022-01-11 B Purchase
3.2
Fischesser Ryan

VP of Finance and Controller

Officer
569 +0.6%
2.69
US$1,531 		569 +0.6% 2.69 US$1,531
2021-12-21 2021-12-20 B Purchase
3.2
Fischesser Ryan

VP of Finance and Controller

Officer
1,136 +1.1%
2.69
US$3,056 		1,136 +1.1% 2.69 US$3,056
2021-12-08 2021-12-07 B Purchase
MCCLUNG BARBARA G

Chief Legal Officer

Officer
6,115 +1.8%
2.69
US$16,449 		6,115 +1.8% 2.69 US$16,449
2021-12-08 2021-12-07 B Purchase
MCCLUNG BARBARA G

Chief Legal Officer

Officer
12 +0.0%
2.69
US$32 		12 +0.0% 2.69 US$32
2021-10-21 2021-10-20 B Purchase
MCCLUNG BARBARA G

Chief Legal Officer

Officer
43 +0.0%
2.69
US$116 		43 +0.0% 2.69 US$116
2021-10-21 2021-10-20 B Purchase
MCCLUNG BARBARA G

Chief Legal Officer

Officer
9,176 +2.8%
2.69
US$24,683 		9,176 +2.8% 2.69 US$24,683
2021-10-13 2021-10-12 B Purchase
Kanner Steven

Chief Scientific Officer

Officer
14,614 +7.3%
2.69
US$39,312 		14,614 +7.3% 2.69 US$39,312
2021-10-13 2021-10-12 B Purchase
Kanner Steven

Chief Scientific Officer

Officer
698 +0.3%
1.81
US$1,263 		698 +0.3% 1.81 US$1,263
2021-10-13 2021-10-12 B Purchase
Kanner Steven

Chief Scientific Officer

Officer
99,548 +99.4%
1.81
US$180,182 		99,548 +99.4% 1.81 US$180,182
2021-10-12 2021-10-11 B Purchase
3.2
Fischesser Ryan

VP of Finance and Controller

Officer
1,746 +1.8%
2.69
US$4,697 		1,746 +1.8% 2.69 US$4,697
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