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SEI Investments Co

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

In the last 90 days, SEI Investments Co insiders filed 0 open-market purchases and 11 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.

Q2 2025 vs. Q1 2025

How the institutions holding SEI Investments Co changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of SEIC: Q1 2025 compared with Q2 2025
MeasureQ1 2025Of which not filed for Q2 2025Q2 2025Change
Holders5468564+26
Shares93.7M73.9K90.1M−3.55M (−3.8%)
Value$7.27B$5.74M$8.09B+$829.7M (+11.4%)

8 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (105)

Institutions that held SEI Investments Co at the end of Q2 2025 but not at the end of Q1 2025.

Showing the largest 100 of 105 by value.

Institutions new to SEIC in Q2 2025
InstitutionSharesValue% of portfolio
Jupiter Asset Management Ltd417,205$37.5M0.31%
Swiss National Bank204,100$18.3M0.01%
Citadel Advisors LLC202,576$18.2M0.02%
Trexquant Investment LP163,649$14.7M0.17%
D. E. Shaw & Co., Inc.145,566$13.1M0.01%
Squarepoint Ops LLC133,094$12.0M0.03%
Cubist Systematic Strategies, LLC116,093$10.4M0.11%
HRT Financial LP103,030$9.26M0.04%
Susquehanna Portfolio Strategies, LLC100,596$9.04M0.20%
Rockefeller Capital Management L.P.100,037$8.99M0.02%
Toroso Investments, LLC84,133$7.56M0.05%
Kathmere Capital Management, LLC74,022$6.65M0.51%
PDT Partners, LLC67,666$6.08M0.34%
XTX Topco Ltd57,884$5.20M0.22%
Wellington Capital Management, Inc.50,200$4.51M6.80%
Moran Wealth Management, LLC47,238$4.24M0.13%
Connor, Clark & Lunn Investment Management Ltd.43,243$3.89M0.01%
Point72 Asset Management, L.P.40,700$3.66M0.01%
Marshall Wace, LLP37,760$3.39M0.00%
Point72 Asia (Singapore) Pte. Ltd.30,195$2.71M0.48%
Point72 Hong Kong Ltd25,260$2.27M0.16%
Capstone Investment Advisors, LLC21,474$1.93M0.02%
ISAM Funds (UK) Ltd20,072$1.80M0.40%
Axq Capital, LP17,934$1.61M0.52%
Brevan Howard Capital Management LP13,935$1.25M0.01%
Point72 (DIFC) Ltd13,895$1.25M0.10%
Sequoia Financial Advisors, LLC13,844$1.24M0.01%
Lido Advisors, LLC13,617$1.22M0.01%
Jain Global LLC13,415$1.21M0.02%
Magnetar Financial LLC13,074$1.17M0.01%
New Age Alpha Advisors, LLC12,767$1.15M0.05%
Polar Asset Management Partners Inc.11,900$1.07M0.03%
Marshall Financial Group LLC11,163$1.03M0.20%
Erste Asset Management GmbH11,400$1.02M0.01%
Novem Group11,305$1.02M0.13%
LMR Partners LLP10,957$984.6K0.02%
Gsa Capital Partners LLP10,667$959.0K0.07%
Dynamic Technology Lab Private Ltd10,589$952.0K0.13%
111 Capital10,467$940.6K0.16%
Landscape Capital Management, L.L.C.9,480$851.9K0.07%
Harrell Investment Partners, LLC9,032$811.6K0.21%
Glenmede Investment Management, LP8,425$757.1K0.00%
Wiley Bros.-Aintree Capital, LLC7,990$718.4K0.01%
Atom Investors LP7,626$685.3K0.06%
NewEdge Wealth, LLC7,861$682.7K0.01%
Readystate Asset Management LP7,123$640.1K0.03%
Evergreen Capital Management LLC6,755$607.0K0.02%
Jump Financial, LLC6,652$597.8K0.01%
Fox Run Management, L.L.C.6,644$597.0K0.10%
Diversify Advisory Services, LLC6,351$559.3K0.02%
Catalyst Funds Management Pty Ltd5,889$529.2K0.15%
Summit Trail Advisors, LLC5,657$508.4K0.01%
Two Sigma Securities, LLC5,559$499.5K0.06%
Harvest Investment Services, LLC5,021$451.2K0.10%
Financial Advocates Investment Management4,569$410.6K0.03%
Advyzon Investment Management, LLC4,374$393.1K0.09%
Colony Group, LLC4,117$370.0K0.00%
Oxford Asset Management LLP4,048$363.8K0.12%
Morningstar Investment Management LLC3,706$333.0K0.03%
Y-Intercept (Hong Kong) Ltd3,585$322.1K0.01%
Private Advisor Group, LLC3,576$321.3K0.00%
Farringdon Capital, Ltd.3,438$308.9K0.10%
Gibbs Wealth Management3,419$307.2K0.06%
Applied Finance Capital Management, LLC3,238$291.0K0.02%
Congress Wealth Management LLC3,120$280.4K0.00%
Institute for Wealth Management, LLC.2,982$268.0K0.03%
Modern Wealth Management, LLC2,911$261.6K0.01%
DRW Securities, LLC2,875$258.3K0.02%
J.W. Cole Advisors, Inc.2,851$256.1K0.01%
Syon Capital LLC2,840$255.2K0.02%
Everence Capital Management Inc2,730$245.0K0.02%
Apriem Advisors2,648$237.9K0.03%
RSM US Wealth Management LLC2,500$224.6K0.00%
Dorsey & Whitney Trust CO LLC2,497$224.4K0.01%
J. W. Coons Advisors, LLC2,430$218.4K0.05%
Scientech Research LLC2,399$215.6K0.05%
QRG Capital Management, Inc.2,349$211.1K0.00%
Koshinski Asset Management, Inc.2,346$210.8K0.02%
EP Wealth Advisors, LLC2,336$209.9K0.00%
HighPoint Advisor Group LLC2,313$207.8K0.01%
Paces Ferry Wealth Advisors, LLC2,300$206.7K0.09%
Chicago Partners Investment Group LLC2,282$205.4K0.01%
Claro Advisors LLC2,241$201.4K0.03%
Genesis Private Wealth, LLC2,235$200.8K0.09%
Financiere des Professionnels - Fonds d,investissement inc.2,218$199.3K0.01%
Global Retirement Partners, LLC1,458$131.0K0.00%
Employees Retirement System of Texas906$81.0K0.00%
Quarry LP510$45.8K0.01%
Harbor Capital Advisors, Inc.497$45.0K0.00%
CoreFirst Bank & Trust373$33.5K0.02%
Osterweis Capital Management Inc246$22.1K0.00%
Optiver Holding B.V.167$15.0K0.00%
Access Investment Management LLC138$12.4K0.00%
Annis Gardner Whiting Capital Advisors, LLC106$9.53K0.00%
Vermillion & White Wealth Management Group, LLC83$7.46K0.00%
Bogart Wealth, LLC58$5.21K0.00%
Fortitude Family Office, LLC41$3.68K0.00%
Twin Peaks Wealth Advisors, LLC40$3.52K0.00%
Colonial Trust Co34$3.06K0.00%
Ameritas Advisory Services, LLC27$2.43K0.00%

Sold out (79)

Institutions that held SEI Investments Co at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of SEIC in Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Aware Super Pty Ltd as trustee of Aware Super363,058$28.2M
Sumitomo Mitsui Trust Holdings, Inc.220,410$17.1M
Achmea Investment Management B.V.154,627$12.0M
Candriam Luxembourg S.C.A.135,207$10.5M
Holocene Advisors, LP106,626$8.28M
Corebridge Financial, Inc.106,499$8.27M
Mitsubishi UFJ Trust & Banking Corp97,573$7.57M
Zacks Investment Management89,116$6.92M
Andra AP-fonden79,100$6.14M
West Coast Financial LLC62,059$4.82M
Vinva Investment Management Ltd48,792$3.76M
PGGM Investments42,444$3.29M
Railway Pension Investments Ltd39,900$3.10M
Algert Global LLC38,744$3.01M
Lansforsakringar Fondforvaltning AB (publ)35,376$2.75M
Element Capital Management LLC34,813$2.70M
Resona Asset Management Co.,Ltd.32,265$2.50M
Fieldview Capital Management, LLC32,182$2.50M
Mediolanum International Funds Ltd31,853$2.46M
Bright Rock Capital Management, LLC27,600$2.14M
Storebrand Asset Management AS26,904$2.09M
Balyasny Asset Management LLC26,840$2.08M
TrimTabs Asset Management, LLC26,671$2.07M
Skandinaviska Enskilda Banken AB (publ)25,385$1.97M
Macquarie Group Ltd24,762$1.92M
Forsta Ap-Fonden23,900$1.86M
Oliver Luxxe Assets LLC22,606$1.75M
British Columbia Investment Management Corp20,965$1.63M
AlTi Global, Inc.18,991$1.47M
DnB Asset Management AS18,920$1.47M
Allstate Corp17,739$1.38M
IFM Investors Pty Ltd16,391$1.27M
Nissay Asset Management Corp13,897$1.08M
FORA Capital, LLC12,758$990.4K
Sumitomo Mitsui DS Asset Management Company, Ltd12,553$974.5K
OP Asset Management Ltd11,958$928.3K
Petrus Trust Company, LTA9,787$759.8K
United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund9,600$745.2K
Nordea Investment Management AB9,422$723.2K
Daiwa Securities Group Inc.8,700$675.0K
Ghe, LLC8,532$662.0K
Tredje AP-fonden8,427$654.2K
Metis Global Partners, LLC7,728$599.9K
Gulf International Bank (UK) Ltd6,326$491.0K
Legacy Advisors, LLC5,980$464.2K
United Services Automobile Association5,770$444.9K
CIBC World Markets Corp4,986$387.1K
S-Bank Fund Management Ltd4,491$348.6K
Cooper Financial Group3,990$309.8K
AXA S.A.3,843$298.3K
Atria Wealth Solutions, Inc.3,697$287.0K
Northstar Financial Companies, Inc.3,663$284.3K
Quadrature Capital Ltd3,138$243.6K
Keebeck Alpha, LP2,984$231.6K
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main2,913$226.1K
B. Metzler seel. Sohn & Co. AG2,882$223.7K
Haven Private, LLC2,878$223.4K
Gallacher Capital Management LLC2,871$222.9K
Warren Averett Asset Management, LLC2,825$219.3K
Tokio Marine Asset Management Co Ltd2,685$208.4K
Baird Financial Group, Inc.2,589$201.0K
Globeflex Capital L P1,800$139.7K
Coldstream Capital Management Inc1,748$135.7K
Royal London Asset Management Ltd1,419$110.2K
Siemens Fonds Invest GmbH1,259$97.7K
Ostrum Asset Management798$61.9K
Livforsakringsbolaget Skandia, Omsesidigt554$43.0K
Johnson Financial Group, Inc.511$39.7K
Mather Group, LLC.313$24.3K
Quent Capital, LLC309$24.0K
BOK Financial Private Wealth, Inc.154$12.0K
Beacon Capital Management, LLC81$6.29K
Hexagon Capital Partners LLC67$5.20K
Saudi Central Bank43$3.34K
West Paces Advisors Inc.42$3.26K
Global Financial Private Client, LLC20$1.55K
Activest Wealth Management5$388
Principia Wealth Advisory, LLC5$365
American Capital Advisory, LLC3$233

Not filed for Q2 2025 yet (8)

Institutions that held SEI Investments Co at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding SEIC in Q1 2025 that haven't filed for Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Credit Agricole S A25,564$1.98M
Schechter Investment Advisors, LLC18,852$1.46M
Orion Portfolio Solutions, LLC11,353$881.3K
Glenmede Trust Co NA8,451$656.1K
CAPROCK Group, Inc.4,070$316.0K
Rakuten Investment Management, Inc.3,023$233.1K
Grant/GrossMendelsohn, LLC2,600$202.2K
Lindbrook Capital, LLC22$1.71K