Share-Based Payments

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Share-Based Payments

12. Share-based Payments

The Zoetis 2013 Equity and Incentive Plan, Amended and Restated as of May 19, 2022 (Equity Plan), provides long-term incentives to our employees and non-employee directors. The principal types of share-based awards available under the Equity Plan may include, but are not limited to, stock options, restricted stock and restricted stock units (RSUs), deferred stock units (DSUs), performance-vesting restricted stock units (PSUs) and other equity-based or cash-based awards.

The components of share-based compensation expense are as follows:

	Three Months Ended
	March 31,
(MILLIONS OF DOLLARS)	2024		2023
Stock options / stock appreciation rights	$	3	$	1
RSUs / DSUs	10		7
PSUs	5		1
Share-based compensation expense—total(a)	$	18	$	9

(a) For the three months ended March 31, 2024 and 2023, we capitalized less than $1 million of share-based compensation expense to inventory.

During the three months ended March 31, 2024, the company granted 265,800 stock options with a weighted-average exercise price of $196.14 per stock option and a weighted-average fair value of $51.00 per stock option. The fair-value based method for valuing each Zoetis stock option grant on the grant date uses the Black-Scholes-Merton option-pricing model, which incorporates a number of valuation assumptions. The weighted-average fair value was estimated based on the following assumptions: risk-free interest rate of 4.06%; expected dividend yield of 0.88%; expected stock price volatility of 27.03%; and expected term of 4.1 years. Stock options granted prior to 2023 generally vest after three years of continuous service from the date of grant and have a contractual term of 10 years. Beginning in 2023, stock options granted are subject to graded vesting over three years from the date of grant and have a contractual term of 10 years. The values determined through this fair-value based method generally are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.

During the three months ended March 31, 2024, the company granted 236,220 RSUs, with a weighted-average grant date fair value of $195.91 per RSU. RSUs are accounted for using a fair-value-based method that utilizes the closing price of Zoetis common stock on the date of grant. RSUs granted prior to 2023 generally vest after three years of continuous service from the date of grant. Beginning in 2023, RSUs granted are subject to graded vesting over three years from the date of grant. The values generally are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.

During the three months ended March 31, 2024, the company granted 101,099 PSUs with a weighted-average grant date fair value of $268.71 per PSU. PSUs are accounted for using a Monte Carlo simulation model. The units underlying the PSUs will be earned and vested over a three-year performance period, based upon the total shareholder return of the company in comparison to the total shareholder return of the companies comprising the S&P 500 stock market index at the start of the performance period, excluding companies that during the performance period are acquired or no longer publicly traded (Relative TSR). The weighted-average fair value was estimated based on volatility assumptions of Zoetis common stock and an average of the S&P 500 companies, which were 26.2% and 30.6%, respectively. Depending on the company’s Relative TSR performance at the end of the performance period, the recipient may earn from 0% to 200% of the target number of units. Vested units are settled in shares of the company’s common stock. PSU values are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.