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Stock-based compensation
 12 Months Ended
May 25, 2025
Share-Based Payment Arrangement [Abstract]  
Stock-based compensation Stock-based compensation
The Company provides stock-based compensation to its employees under two plans:
•The 2019 Stock Incentive Plan became effective on October 16, 2019. This plan provides for the grant of stock options, stock grants, stock units and stock appreciation rights to employees, consultants and directors. Under the plan, no recipient may receive awards during any fiscal year that exceed 500,000 stock options, 250,000 stock grants or stock units, or 500,000 stock appreciation rights, nor may any non-employee director be granted awards in excess of $120. As of May 25, 2025, the Company had 2,030,822 common shares reserved for new awards under the 2019 Stock Incentive Plan.
•The Equity Inducement Plan became effective on March 20, 2024. This plan provides for the grant of equity awards to individuals that were not previously employees or directors of the Company as an inducement material to the individual’s entry into employment with the Company. As of May 25, 2025, the Company had 298,387 common shares reserved for new awards under the Equity Inducement Plan.
The following table presents information about the fair value of stock-based awards:
Stock options
PSUs
 Year endedYear ended
 May 25, 2025May 26, 2024May 25, 2025May 26, 2024
Weighted-average grant date fair value per share
$4.32 $3.91 3.85 4.66 
Weighted-average assumptions used to determine grant-date fair value:
Expected life
4.4 years4.4 years5.0 years5.0 years
Risk-free interest rate4.0 %4.3 %3.7 %4.4 %
Volatility84 %58 %82 %78 %
Dividend yield— %— %— %— %
The following table presents other information about stock-based awards:
 Year ended
 May 25, 2025May 26, 2024
Weighted average grant-date fair value of RSUs awarded per share
$5.50 $7.48 
Intrinsic value of stock options exercised— 115 
Fair value of RSUs vested per share
7.93 7.74 
Fair value of PSUs vested per share
4.24 — 
Tax benefit of options exercised— 35 
The following table presents information about stock option balances and activity:
 SharesWeighted-average exercise price per shareWeighted-average remaining contractual term
Aggregate intrinsic value
Outstanding at May 26, 20242,112,591 $10.88 
Granted755,775 6.64 
Forfeited(155,189)7.49 
Expired(1,452,878)11.04 
Outstanding at May 25, 20251,260,299 8.57 4.5 years$225,294 
Exercisable at May 25, 2025599,970 10.57 2.3 years1,361 
The intrinsic values presented in the table above were calculated as the excess, if any, of the market price or closing price of the Company’s Common Stock over the exercise price of the options multiplied by the number of options exercised, outstanding or exercisable, as applicable.
The following table presents information about recent RSU and PSU activity:
RSUsPSUs
 SharesWeighted-average grant date fair value per shareSharesWeighted-average grant date fair value per share
Outstanding at May 26, 20241,622,004 $7.83 1,500,000 $4.66 
Granted1,038,287 5.50 1,120,000 3.85 
Vested(756,547)7.93 (75,000)4.24 
Forfeited(384,457)7.67 — — 
Outstanding at May 25, 20251,519,287 6.23 2,545,000 4.32 
Stock-based compensation expense
The following table summarizes stock-based compensation by income statement line item:
Year ended
May 25, 2025May 26, 2024
Cost of product sales$856 $582 
Research and development expense(122)168 
Selling, general and administrative expense9,424 5,451 
Stock-based compensation expense$10,158 $6,201 
Most of the stock-based compensation expense arises from recent awards to our executive officers and other newly hired employees under the Equity Inducement Plan. Those awards include (i) RSUs that primarily vest on each of the first five anniversaries of the grant date; and (ii) PSU awards divided into ten equal tranches that will vest, if at all, based upon closing stock price milestones over a five-year performance period, and to the extent a PSU award tranche vests based on performance, 50% of the shares for each tranche will be issued immediately, and 50% of the shares will be issued on the one-year anniversary of the performance vesting date.
As of May 25, 2025, there was $13,865 of total unrecognized compensation expense related to unvested equity compensation awards granted under the Lifecore incentive stock plans. This total expense is expected to be recognized over a weighted-average period of 2.0 years.