v3.25.1
Earnings Per Share and Equity (Tables)
 3 Months Ended
Apr. 04, 2025
Earnings Per Share [Abstract]  
Schedule of Net Income Per Share
Net income per share of common stock for calculating basic and diluted earnings per share was calculated as follows (in millions, except per share data):
Quarters Ended
 April 4, 2025March 29, 2024
Net income (loss) for diluted earnings per share of common stock$(486.1)$453.0 
Basic weighted-average shares of common stock outstanding421.3 428.1 
Dilutive effect of share-based awards— 0.8 
Dilutive effect of convertible notes and warrants— 7.6 
Diluted weighted-average shares of common stock outstanding421.3 436.5 
Net income (loss) per share of common stock attributable to ON Semiconductor Corporation:
Basic$(1.15)$1.06 
Diluted$(1.15)$1.04 
Schedule of Share Repurchase Program Activity under the Share Repurchase Program during the quarters ended April 4, 2025 and March 29, 2024, respectively, was as follows (in millions, except per share data):
Quarters Ended
 April 4, 2025March 29, 2024
Number of repurchased shares (1)
6.1 1.3 
Aggregate purchase price$300.0 $100.0 
Fees, commissions and excise tax2.6 — 
Total$302.6 $100.0 
Weighted-average purchase price per share (2)
$49.35 $78.57 

(1) None of these shares had been reissued or retired as of April 4, 2025, but may be reissued later.
(2) Exclusive of fees, commissions or other expenses.