SEI Investments Co

SEIC

Exchange: Nasdaq
Industry: Security Brokers, Dealers & Flotation Companies
SEC CIK: 0000350894

SEC filings (opens in a new tab)

In the last 90 days, SEI Investments Co insiders filed 0 open-market purchases and 10 sales; 575 institutions reported holding it in 13F filings for Q2 2026, worth $7.94B in total; Markel Group is the only superinvestor holding it.

13F holders, Q1 2021

Institutional positions in SEI Investments Co as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders: 443; No complete 13F data for Q4 2020
Shares held: 98.1M; No complete 13F data for Q4 2020
Total value: $5.97B; No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting SEIC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 443 institutions

Value heldQ1 2021: $5.97B

Institutions holding SEIC and their total value by quarter
Quarter	Holders	Value
Q2 2026	575	$7.94B
Q1 2026	569	$7.06B
Q4 2025	562	$7.31B
Q3 2025	550	$7.51B
Q2 2025	564	$8.09B
Q1 2025	546	$7.27B
Q4 2024	540	$7.52B
Q3 2024	502	$6.35B
Q2 2024	493	$6.02B
Q1 2024	475	$6.77B
Q4 2023	491	$5.90B
Q3 2023	462	$5.63B
Q2 2023	458	$5.53B
Q1 2023	444	$5.36B
Q4 2022	446	$5.45B
Q3 2022	433	$4.63B
Q2 2022	456	$5.18B
Q1 2022	465	$5.81B
Q4 2021	472	$5.94B
Q3 2021	446	$5.73B
Q2 2021	440	$6.04B
Q1 2021	443	$5.97B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding SEI Investments Co.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding SEIC in Q1 2021
Institution	Shares	Value	% of portfolio	Change in shares	Action
Court Place Advisors, LLC	95,968	$5.85M	1.81%	–	–
Holocene Advisors, LP	92,322	$5.63M	0.04%	–	–
State of New Jersey Common Pension Fund D	91,541	$5.58M	0.02%	–	–
Texas Permanent School Fund	88,993	$5.42M	0.07%	–	–
Franklin Resources Inc	83,766	$5.10M	0.00%	–	–
BNP Paribas Arbitrage, SA	76,999	$4.69M	0.01%	–	–
Worldquant Millennium Advisors LLC	74,490	$4.54M	0.10%	–	–
Cubist Systematic Strategies, LLC	73,423	$4.47M	0.06%	–	–
Sepio Capital, LP	72,183	$4.40M	0.41%	–	–
Healthcare of Ontario Pension Plan Trust Fund	70,894	$4.32M	0.01%	–	–
Voya Investment Management LLC	68,021	$4.14M	0.01%	–	–
Brown Advisory Inc	67,840	$4.13M	0.01%	–	–
Putnam Investments LLC	66,858	$4.07M	0.01%	–	–
RK Asset Management, LLC	66,030	$4.02M	3.59%	–	–
Banco Santander, S.A.	65,050	$3.96M	0.03%	–	–
Comerica Bank	67,736	$3.92M	0.02%	–	–
BBVA USA Bancshares, Inc.	62,540	$3.81M	0.18%	–	–
KBC Group NV	62,427	$3.80M	0.02%	–	–
Public Employees Retirement System of Ohio	61,596	$3.75M	0.01%	–	–
Union Heritage Capital, LLC	61,550	$3.75M	1.87%	–	–
MetLife Investment Management	61,529	$3.75M	0.03%	–	–
Ingalls & Snyder LLC	61,220	$3.73M	0.18%	–	–
LPL Financial LLC	59,672	$3.64M	0.00%	–	–
Price T Rowe Associates Inc	59,292	$3.61M	0.00%	–	–
HSBC Holdings PLC	58,518	$3.58M	0.00%	–	–
Rafferty Asset Management, LLC	56,804	$3.46M	0.02%	–	–
Glenmede Trust Co NA	56,720	$3.46M	0.02%	–	–
Bridgewater Associates, LP	55,355	$3.37M	0.03%	–	–
Oregon Public Employees Retirement Fund	55,185	$3.36M	0.04%	–	–
CIBC Private Wealth Group, LLC	54,990	$3.35M	0.01%	–	–
Mandatum Life Insurance Co Ltd	54,859	$3.34M	0.66%	–	–
Asset Management One Co.,Ltd.	54,829	$3.34M	0.01%	–	–
Parsec Financial Management, Inc.	54,427	$3.32M	0.17%	–	–
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund	54,183	$3.30M	0.03%	–	–
Pictet Asset Management Ltd	51,922	$3.16M	0.00%	–	–
Vontobel Holding Ltd.	51,918	$3.16M	0.02%	–	–
Citadel Advisors LLC	49,874	$3.04M	0.00%	–	–
Pensionfund DSM Netherlands	49,800	$3.03M	0.41%	–	–
Redwood Investment Management, LLC	48,867	$2.98M	0.57%	–	–
State of Michigan Retirement System	47,901	$2.92M	0.02%	–	–
Janus Henderson Group PLC	47,632	$2.90M	0.00%	–	–
Nisa Investment Advisors, LLC	46,650	$2.84M	0.02%	–	–
South Dakota Investment Council	45,761	$2.79M	0.05%	–	–
Royal London Asset Management Ltd	44,725	$2.73M	0.01%	–	–
West Coast Financial LLC	44,356	$2.70M	0.47%	–	–
Ameritas Investment Partners, Inc.	44,859	$2.69M	0.10%	–	–
State of Alaska, Department of Revenue	44,082	$2.69M	0.03%	–	–
Oppenheimer Asset Management Inc.	43,829	$2.67M	0.04%	–	–
Russell Investments Group, Ltd.	42,203	$2.57M	0.00%	–	–
Treasurer of the State of North Carolina	41,339	$2.52M	0.02%	–	–
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	39,739	$2.42M	0.03%	–	–
Duality Advisers, LP	38,884	$2.37M	0.21%	–	–
Handelsbanken Fonder AB	38,673	$2.36M	0.01%	–	–
Forsta Ap-Fonden	38,500	$2.35M	0.03%	–	–
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	38,443	$2.34M	0.01%	–	–
Toronto Dominion Bank	38,058	$2.32M	0.00%	–	–
Taylor Hoffman Wealth Management	37,638	$2.29M	1.05%	–	–
Aviva PLC	37,601	$2.29M	0.01%	–	–
Wealth Alliance Advisory Group, LLC	37,504	$2.29M	1.17%	–	–
APG Asset Management N.V.	43,353	$2.25M	0.00%	–	–
Two Sigma Investments, LP	36,294	$2.21M	0.01%	–	–
Zurcher Kantonalbank (Zurich Cantonalbank)	35,739	$2.18M	0.01%	–	–
Arizona State Retirement System	35,431	$2.16M	0.02%	–	–
NJ State Employees Deferred Compensation Plan	35,400	$2.16M	0.31%	–	–
Boston Financial Mangement LLC	35,030	$2.13M	0.09%	–	–
Atria Investments LLC	33,708	$2.05M	0.05%	–	–
Pensionfund Sabic	32,000	$1.95M	0.45%	–	–
Louisiana State Employees Retirement System	31,000	$1.89M	0.05%	–	–
Johnson Investment Counsel Inc	30,771	$1.88M	0.03%	–	–
Henshaw Capital LLC	30,377	$1.85M	0.12%	–	–
Natixis	29,528	$1.80M	0.01%	–	–
Qube Research & Technologies Ltd	29,410	$1.79M	0.03%	–	–
Korea Investment CORP	29,000	$1.77M	0.01%	–	–
Raymond James Financial Services Advisors, Inc.	28,387	$1.73M	0.00%	–	–
Westwood Holdings Group Inc.	27,837	$1.70M	0.02%	–	–
NN Investment Partners Holdings N.V.	27,697	$1.69M	0.01%	–	–
Bright Rock Capital Management, LLC	27,600	$1.68M	0.43%	–	–
The PNC Financial Services Group, Inc.	26,312	$1.60M	0.00%	–	–
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.	26,307	$1.60M	0.01%	–	–
Morris Capital Advisors, LLC	25,801	$1.57M	1.28%	–	–
Balyasny Asset Management LLC	24,691	$1.50M	0.01%	–	–
Bank of Montreal	23,690	$1.49M	0.00%	–	–
Gulf International Bank (UK) Ltd	23,880	$1.46M	0.02%	–	–
Federated Hermes, Inc.	22,742	$1.39M	0.00%	–	–
Oliver Luxxe Assets LLC	22,570	$1.38M	0.41%	–	–
Metropolitan Life Insurance Co	22,396	$1.36M	0.02%	–	–
Panagora Asset Management Inc	22,228	$1.35M	0.01%	–	–
Utah Retirement Systems	21,674	$1.32M	0.02%	–	–
Canada Pension Plan Investment Board	21,410	$1.30M	0.00%	–	–
New Mexico Educational Retirement Board	21,300	$1.30M	0.05%	–	–
Bank of Nova Scotia	21,200	$1.29M	0.00%	–	–
Arnhold LLC	21,045	$1.28M	0.15%	–	–
Davenport & Co LLC	20,959	$1.28M	0.01%	–	–
Nomura Asset Management Co Ltd	20,800	$1.27M	0.01%	–	–
Globeflex Capital L P	20,571	$1.25M	0.23%	–	–
British Columbia Investment Management Corp	20,167	$1.23M	0.01%	–	–
Tiedemann Advisors, LLC	20,057	$1.22M	0.05%	–	–
Northwestern Mutual Investment Management Company, LLC	19,870	$1.21M	0.02%	–	–
Unigestion Holding SA	19,509	$1.19M	0.04%	–	–
Moors & Cabot, Inc.	19,396	$1.18M	0.09%	–	–