PRIMECAP MANAGEMENT CO/CA/

CIK

763212

City

PASADENA

State / Country

CA

Stock

KNX — Knight-Swift Transportation Holdings Inc.

Top Portfolio Positions

317 positions · $125,506,634,553 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio	Open
LLY	ELI LILLY & Co Healthcare	9,223,432	$8,483,436,050	6.76%
MU	Micron Technology Inc Technology	21,874,204	$7,389,981,079	5.89%
GOOGL	Alphabet Inc. Communication Services	14,987,459	$4,309,793,710	3.43%
AZN	Astrazeneca PLC Healthcare	18,213,708	$3,592,107,491	2.86%
KLAC	Kla Corp Technology	2,437,647	$3,589,215,819	2.86%
INTC	Intel Corp Technology	75,761,968	$3,343,375,647	2.66%
AMGN	Amgen Inc Healthcare	8,874,129	$3,122,362,288	2.49%
NVDA	Nvidia Corp Technology	17,188,230	$2,997,627,312	2.39%
FDX	Fedex Corp Industrials	8,303,010	$2,957,366,101	2.36%
BIIB	Biogen Inc. Healthcare	14,757,607	$2,705,512,091	2.16%

Portfolio Trend

25 quarters · across all stocks

Holdings in KNX

Compact Export CSV

Shares Held

Position Value (USD)

14 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$50,076,001	869,677	-1.1%	Shares	Sole	2026-05-11
2025-12-31	$45,989,513	879,677	+2.5%	Shares	Sole	2026-02-11
2025-09-30	$33,906,573	858,177	+32.3%	Shares	Sole	2025-11-12
2025-06-30	$28,699,829	648,877	+264.8%	Shares	Sole	2025-08-11
2025-03-31	$7,734,696	177,850	+0.7%	Shares	Sole	2025-05-09
2024-12-31	$9,372,168	176,700	-0.3%	Shares	Sole	2025-02-10
2024-09-30	$9,559,940	177,200	-3.3%	Shares	Sole	2024-11-08
2024-06-30	$9,145,344	183,200	+7.3%	Shares	Sole	2024-08-09
2024-03-31	$9,391,914	170,700	-1.7%	Shares	Sole	2024-05-14
2023-12-31	$10,013,805	173,700	+14.5%	Shares	Sole	2024-02-09
2023-09-30	$7,607,755	151,700	+13.0%	Shares	Sole	2023-11-13
2023-06-30	$7,456,152	134,200	+64.3%	Shares	Sole	2023-08-11
2023-03-31	$4,622,586	81,700	0.0%	Shares	Sole	2023-05-15
2022-12-31	$4,281,897	81,700	—	Shares	Sole	2023-02-13
No 13F history on record for this holder in this stock.