Insider Trading February 24, 2026

Caribou Biosciences CLO Sells Shares to Cover RSU Taxes as Company Sees Recent Price Gains

Chief Legal Officer Barbara McClung disposed of 6,938 shares; company stock has risen sharply in the past week and year while executives received RSUs and stock options

By Maya Rios CRBU
Caribou Biosciences CLO Sells Shares to Cover RSU Taxes as Company Sees Recent Price Gains
CRBU

Barbara G. McClung, Chief Legal Officer of Caribou Biosciences (NASDAQ: CRBU), sold 6,938 shares on February 24, 2026, at $1.96 per share to satisfy tax obligations tied to vested restricted stock units. The stock has since traded up to $2.14, marking a 32% increase over the past week and a 73% advance year-over-year. McClung was also granted 45,000 restricted stock units on February 20, 2026, and options to buy 202,500 shares at $1.80 that vest over time.

Key Points

  • Barbara G. McClung sold 6,938 Caribou Biosciences shares on February 24, 2026, at $1.96 per share to cover tax obligations from vested restricted stock units.
  • Caribou Biosciences stock has risen to $2.14, a 32% gain over the past week and a 73% gain year-over-year.
  • On February 20, 2026, McClung received 45,000 restricted stock units that vest in four equal annual installments starting February 20, 2027, and options to buy 202,500 shares at $1.80 that vest monthly through February 20, 2030.
  • InvestingPro characterizes the stock as trading below its Fair Value and offers a Pro Research Report for deeper analysis; Clear Street initiated coverage with a Buy rating and a $13.00 price target, noting optimism about off-the-shelf allogeneic CAR-T therapies.

Barbara G. McClung, serving as Chief Legal Officer at Caribou Biosciences (NASDAQ: CRBU), executed a sale of 6,938 common shares on February 24, 2026, at a per-share price of $1.96, producing gross proceeds of $13,598. According to a Form 4 filing with the Securities and Exchange Commission, the disposition was made specifically to cover tax obligations arising from the vesting of restricted stock units.

The company's share price has moved higher since the transaction. At the time of reporting, the stock is trading at $2.14 - a rise equivalent to 32% over the last week and a 73% gain compared with its level a year earlier.

Additional insider compensation actions for McClung were disclosed on February 20, 2026. On that date she acquired 45,000 shares of common stock valued at $0, representing restricted stock units that will vest in four equal annual installments beginning February 20, 2027. In the same filing, McClung was also awarded options to purchase 202,500 shares of common stock at an exercise price of $1.80 per share. Those options vest monthly and are scheduled to be fully vested by February 20, 2030.

Market research notes included in filings and related commentary indicate differing perspectives on valuation and prospects. An InvestingPro analysis cited in disclosures states that the stock currently trades below its Fair Value and offers a Pro Research Report for further detail on Caribou Biosciences' outlook.

Separately, Clear Street has initiated coverage of Caribou Biosciences with a Buy rating and set a price target of $13.00. In its initiation note, the firm highlighted optimism about Caribou's work on off-the-shelf allogeneic CAR-T cell therapies and suggested those therapies could be competitive commercially. The initiation represents an analyst view of the companys potential in advancing these therapies.


Contextual summary - The insider sale was identified as a tax-driven transaction tied to RSU vesting. At the same time, McClung's equity compensation package includes RSUs with multi-year vesting and a large option grant that vests through 2030. Market commentary from InvestingPro flags valuation below Fair Value, while Clear Street initiated coverage with a Buy and a $13.00 target, citing optimism for Caribou's allogeneic CAR-T development.

Risks

  • Valuation uncertainty - InvestingPro analysis states the stock currently trades below its Fair Value, indicating differing views on price relative to intrinsic value (affects equity investors and capital markets).
  • Future equity overhang - 45,000 restricted stock units vesting over four years and options that vest through 2030 represent potential future share issuance or insider sales tied to compensation vesting schedules (affects shareholders and market supply).
  • Dependence on development progress - Clear Street's bullish view is tied to Caribou's development of off-the-shelf allogeneic CAR-T therapies, which implies outcomes depend on future development and commercial execution (impacts biotech and healthcare market participants).

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