SEI INVESTMENTS CO

CIK

350894

City

OAKS

State / Country

Stock

ATI — Ati Inc

Top Portfolio Positions

2,889 positions · $83,771,024,254 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	21,684,924	$3,781,850,745	4.51%
AAPL	Apple Inc. Technology	11,250,613	$2,855,293,072	3.41%
MSFT	Microsoft Corp Technology	7,000,712	$2,591,453,560	3.09%
AMZN	Amazon Com Inc Consumer Cyclical	10,492,826	$2,185,340,870	2.61%
AVGO	Broadcom Inc. Technology	5,075,086	$1,570,789,866	1.88%
GOOGL	Alphabet Inc. Communication Services	4,169,123	$1,198,873,009	1.43%
META	Meta Platforms, Inc. Communication Services	1,971,374	$1,127,882,205	1.35%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	2,591,510	$875,800,803	1.05%
LLY	ELI LILLY & Co Healthcare	767,347	$705,782,748	0.84%
MA	Mastercard Inc Financial Services	1,243,557	$621,355,689	0.74%

25 quarters · across all stocks

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$13,097,945	90,045	-24.7%	Shares	Sole	2026-05-13
2025-12-31	$13,723,574	119,585	+1.8%	Shares	Sole	2026-02-13
2025-09-30	$9,557,205	117,497	-4.6%	Shares	Sole	2025-11-13
2025-06-30	$10,634,151	123,166	-16.8%	Shares	Defined	2025-08-14
2025-03-31	$7,701,635	148,023	-13.4%	Shares	Sole	2025-05-14
2024-12-31	$9,409,968	170,966	-31.0%	Shares	Sole	2025-02-11
2024-09-30	$16,569,123	247,633	-13.5%	Shares	Defined	2024-11-12
2024-06-30	$15,866,849	286,147	-2.5%	Shares	Defined	2024-08-13
2024-03-31	$15,011,332	293,362	-11.5%	Shares	Sole	2024-05-07
2023-12-31	$15,064,847	331,314	-15.9%	Shares	Sole	2024-02-14
2023-09-30	$16,215,115	394,049	+47.4%	Shares	Sole	2023-11-14
2023-06-30	$11,828,119	267,423	+9.5%	Shares	Sole	2023-08-11
2023-03-31	$9,640,945	244,322	+820.7%	Shares	Defined	2023-05-12
2022-12-31	$792,364	26,536	-50.5%	Shares	Sole	2023-02-10
2022-09-30	$1,426,747	53,617	-10.2%	Shares	Defined	2022-11-14
2022-06-30	$1,356,399	59,727	+4.8%	Shares	Defined	2022-08-15
2022-03-31	$1,529,396	56,982	+348.3%	Shares	Defined	2022-05-13
2021-12-31	$202,502	12,712	-85.3%	Shares	Sole	2022-02-14
2021-09-30	$1,441,405	86,675	+16.5%	Shares	Sole	2021-11-12
2021-06-30	$1,551,594	74,417	-9.9%	Shares	Sole	2021-08-06
2021-03-31	$1,738,503	82,550	-13.6%	Shares	Sole	2021-05-12
2020-12-31	$1,602,658	95,567	+538.3%	Shares	Sole	2021-02-08
2020-09-30	$130,564	14,973	+23.6%	Shares	Sole	2020-12-04
2020-06-30	$123,482	12,118	-95.0%	Shares	Sole	2020-08-17
2020-03-31	$2,077,416	244,402	—	Shares	Defined	2020-05-14
No 13F history on record for this holder in this stock.