Our stock-based compensation expense includes restricted stock units (RSUs), relative value awards (RVAs), shareholder value awards (SVAs), and performance awards (PAs). We recognize the fair value of stock-based compensation as expense over the requisite service period of the individual grantees, which generally equals the vesting period. Stock-based compensation expense was as follows:

As of December 31, 2025, the total estimated remaining unrecognized compensation cost of $554 million was primarily related to 2.3 million of nonvested RSUs and will be amortized over the weighted-average remaining requisite service period of 21 months. We provide newly issued shares of our common stock to satisfy the issuance of shares under our stock-based compensation awards. At December 31, 2025, stock-based compensation awards may be granted under the 2002 Lilly Stock Plan for not more than 42.4 million additional shares.

RSUs are granted to certain employees with a vesting period of typically three years. RSU shares are accounted for at fair value based upon the closing stock price on the date of grant.

RVAs are granted to officers and management. The number of shares actually issued, if any, varies depending on the growth of our stock price at the end of the three-year vesting period compared to our peers. We measure the fair value of the RVA unit on the grant date using a Monte Carlo simulation model.

SVAs have been granted to officers and management. The number of shares actually issued, if any, varies depending on our stock price at the end of the three-year vesting period compared to pre-established target stock prices. We measure the fair value of the SVA unit on the grant date using a Monte Carlo simulation model.

PAs were granted to officers and management prior to 2024, as we discontinued the program. The number of PA shares actually issued varied depending on the achievement of certain pre-established earnings-per-share targets over a two-year period. PA shares were accounted for at fair value based upon the closing stock price on the date of grant.

For RVAs and SVAs, the Monte Carlo simulation model utilizes multiple input variables that determine the probability of satisfying the market condition stipulated in the award grant and calculates the fair value of the award. Expected volatilities utilized in the model are based on implied volatilities from traded options on our stock, historical volatility of our stock price, historical volatility of our peers' stock price for RVAs, and other factors. Similarly, the dividend yield is based on historical experience and our estimate of future dividend yields. The risk-free interest rate is derived from the U.S. Treasury yield curve in effect at the time of grant.


	RVAs						SVAs
	2025		2024		2023		2025		2024		2023
Expected dividend yield	0.70	%	0.70	%	1.07	%	0.70	%	0.70	%	1.07	%
Risk-free interest rate	4.21		4.26		4.08		4.21		4.26		4.08
Volatility	29.10		27.69		31.25		31.54		28.64		29.87