Marketable Securities

12 Months Ended

Dec. 28, 2024

Marketable Securities:

At December 28, 2024 and December 30, 2023, marketable securities are categorized as follows:


	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
	(in thousands)
December 28, 2024
Government notes and bonds	$	284,763	$	387	$	287	$	284,863
Certificates of deposit		73,390		49		18		73,421
Commercial paper		136,496		103		42		136,557
Corporate bonds		144,331		283		72		144,542
Total marketable securities	$	638,980	$	822	$	419	$	639,383
December 30, 2023
Government notes and bonds	$	195,733	$	393	$	326	$	195,800
Certificates of deposit		67,377		93		3		67,467
Commercial paper		99,591		54		10		99,635
Corporate bonds		101,146		391		136		101,401
Total marketable securities	$	463,847	$	931	$	475	$	464,303

The amortized cost and estimated fair value of marketable securities classified by the maturity date listed on the security, regardless of the Consolidated Balance Sheet classification, is as follows at December 28, 2024 and December 30, 2023:


	December 28, 2024				December 30, 2023
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(in thousands)
Due within one year	$	432,088	$	432,616	$	331,136	$	330,937
Due after one through five years		140,917		140,792		132,711		133,366
Due after five through ten years		235		235		—		—
Due after ten years		65,740		65,740		—		—
Total marketable securities	$	638,980	$	639,383	$	463,847	$	464,303

The following table summarizes the estimated fair value and gross unrealized holding losses of marketable securities, aggregated by investment instrument and period of time in an unrealized loss position, at December 28, 2024 and December 30, 2023.


	In Unrealized Loss Position For Less Than 12 Months				In Unrealized Loss Position For Greater Than 12 Months
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(in thousands)
December 28, 2024
Government notes and bonds	$	37,636	$	287	$	—	$	—
Certificates of deposit		8,260		18		—		—
Commercial paper		18,317		42		—		—
Corporate bonds		13,260		71		3,200		1
Total marketable securities	$	77,473	$	418	$	3,200	$	1
December 30, 2023
Government notes and bonds	$	82,776	$	325	$	180	$	1
Certificates of deposit		11,839		3		—		—
Commercial paper		20,121		10		—		—
Corporate bonds		20,268		103		5,999		33
Total marketable securities	$	135,004	$	441	$	6,179	$	34

See Note 4 for additional discussion regarding the fair value of the Company’s marketable securities.