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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.

13F holders, Q4 2021

Institutional positions in SEI Investments Co as of Dec 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
472
+30 vs. Q3 2021
Shares held
97.5M
+862.3K (+0.9%) vs. Q3 2021
Total value
$5.94B
+$212.5M (+3.7%) vs. Q3 2021
New holders
68
142 more added
Sold out
38
160 more reduced

4 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: new holders, sold out and not filed yet

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 holdersQ4 2021: 472 institutions
Q1 2021: 443 institutionsQ2 2021: 440 institutionsQ3 2021: 446 institutionsQ4 2021: 472 institutionsQ1 2022: 465 institutionsQ2 2022: 456 institutionsQ3 2022: 433 institutionsQ4 2022: 446 institutionsQ1 2023: 444 institutionsQ2 2023: 458 institutionsQ3 2023: 462 institutionsQ4 2023: 491 institutionsQ1 2024: 475 institutionsQ2 2024: 493 institutionsQ3 2024: 502 institutionsQ4 2024: 540 institutionsQ1 2025: 546 institutionsQ2 2025: 564 institutionsQ3 2025: 550 institutionsQ4 2025: 562 institutionsQ1 2026: 569 institutionsQ2 2026: 575 institutions
Value heldQ4 2021: $5.94B
Q1 2021: $5.97BQ2 2021: $6.04BQ3 2021: $5.73BQ4 2021: $5.94BQ1 2022: $5.81BQ2 2022: $5.18BQ3 2022: $4.63BQ4 2022: $5.45BQ1 2023: $5.36BQ2 2023: $5.53BQ3 2023: $5.63BQ4 2023: $5.90BQ1 2024: $6.77BQ2 2024: $6.02BQ3 2024: $6.35BQ4 2024: $7.52BQ1 2025: $7.27BQ2 2025: $8.09BQ3 2025: $7.51BQ4 2025: $7.31BQ1 2026: $7.06BQ2 2026: $7.94B
Institutions holding SEIC and their total value by quarter
QuarterHoldersValue
Q2 2026575$7.94B
Q1 2026569$7.06B
Q4 2025562$7.31B
Q3 2025550$7.51B
Q2 2025564$8.09B
Q1 2025546$7.27B
Q4 2024540$7.52B
Q3 2024502$6.35B
Q2 2024493$6.02B
Q1 2024475$6.77B
Q4 2023491$5.90B
Q3 2023462$5.63B
Q2 2023458$5.53B
Q1 2023444$5.36B
Q4 2022446$5.45B
Q3 2022433$4.63B
Q2 2022456$5.18B
Q1 2022465$5.81B
Q4 2021472$5.94B
Q3 2021446$5.73B
Q2 2021440$6.04B
Q1 2021443$5.97B

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q3 2021.

Institutions holding SEIC in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
M&R Capital Management Inc833$50.0K0.01%−100−10.7%Reduced
Harbor Investment Advisory, LLC807$49.0K0.01%+807New
Canada Pension Plan Investment Board752$45.0K0.00%−28,852−97.5%Reduced
Rockbridge Investment Management, LCC663$40.0K0.01%00.0%Unchanged
Trust Co of Vermont656$40.0K0.00%+656New
Fortitude Advisory Group L.L.C.647$39.0K0.02%+647New
HM Payson & Co600$37.0K0.00%00.0%Unchanged
Artemis Wealth Advisors, LLC612$37.0K0.00%+11+1.8%Added
Spire Wealth Management604$37.0K0.00%00.0%Unchanged
Group One Trading, L.P.600$37.0K0.00%+100+20.0%Added
First Horizon Advisors, Inc.608$36.0K0.00%−46−7.0%Reduced
Central Trust Co481$29.0K0.00%00.0%Unchanged
Baillie Gifford & Co438$27.0K0.00%+38+9.5%Added
Quadrant Capital Group LLC412$25.0K0.00%−11−2.6%Reduced
Sandy Spring Bank410$25.0K0.00%00.0%Unchanged
CWM, LLC386$24.0K0.00%+386New
CoreFirst Bank & Trust373$23.0K0.01%00.0%Unchanged
National Bank of Canada378$23.0K0.00%+378New
Huntington National Bank326$20.0K0.00%−9−2.7%Reduced
Allworth Financial LP325$20.0K0.00%+133+69.3%Added
Private Capital Group, LLC311$19.0K0.00%−173−35.7%Reduced
Bessemer Group Inc313$19.0K0.00%00.0%Unchanged
American Portfolios Advisors305$18.6K0.00%−409−57.3%Reduced
Zions Bancorporation, N.A.290$18.0K0.00%00.0%Unchanged
Geneos Wealth Management Inc.295$17.0K0.00%−34−10.3%Reduced
Delos Wealth Advisors, LLC248$15.0K0.01%+248New
Fieldpoint Private Securities, LLC235$14.0K0.00%00.0%Unchanged
Fuller & Thaler Asset Management, Inc.210$13.0K0.00%00.0%Unchanged
Quent Capital, LLC207$13.0K0.00%+207New
Anchor Investment Management, LLC200$12.2K0.00%00.0%Unchanged
Farmers & Merchants Investments Inc203$12.0K0.00%00.0%Unchanged
Gemmer Asset Management LLC204$12.0K0.00%00.0%Unchanged
Koshinski Asset Management, Inc.189$11.5K0.00%00.0%Unchanged
Crewe Advisors LLC166$10.0K0.00%00.0%Unchanged
Benjamin F. Edwards & Company, Inc.156$10.0K0.00%+110+239.1%Added
Whittier Trust Co of Nevada Inc130$8.00K0.00%00.0%Unchanged
Concord Wealth Partners114$7.00K0.00%00.0%Unchanged
Lindbrook Capital, LLC101$6.00K0.00%−32−24.1%Reduced
Prestige Wealth Management Group LLC105$6.00K0.00%−6−5.4%Reduced
Vigilant Capital Management, LLC93$6.00K0.00%00.0%Unchanged
Carroll Financial Associates, Inc.90$5.00K0.00%−58−39.2%Reduced
NEXT Financial Group, Inc81$5.00K0.00%00.0%Unchanged
McIlrath & Eck, LLC89$5.00K0.00%00.0%Unchanged
Tradition Wealth Management, LLC82$5.00K0.00%00.0%Unchanged
Glassman Wealth Services83$5.00K0.00%+34+69.4%Added
IFP Advisors, Inc66$4.00K0.00%−61−48.0%Reduced
Creative Financial Designs Inc60$4.00K0.00%00.0%Unchanged
Asset Dedication, LLC63$4.00K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co70$4.00K0.00%+27+62.8%Added
Evoke Wealth, LLC63$4.00K0.00%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC52$3.00K0.00%−1,121−95.6%Reduced
Denali Advisors LLC43$3.00K0.00%−30−41.1%Reduced
Baystate Wealth Management LLC52$3.00K0.00%00.0%Unchanged
Earnest Partners LLC42$3.00K0.00%00.0%Unchanged
TD Private Client Wealth LLC33$2.01K0.00%00.0%Unchanged
TCI Wealth Advisors, Inc.41$2.00K0.00%00.0%Unchanged
Versant Capital Management, Inc31$2.00K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC36$2.00K0.00%+36New
CVA Family Office, LLC30$2.00K0.00%+30New
Confluence Wealth Services, Inc.35$2.00K0.00%+35New
Raffa Wealth Management, LLC17$1.04K0.00%00.0%Unchanged
Massmutual Trust Co FSB14$1.00K0.00%00.0%Unchanged
Manchester Capital Management LLC22$1.00K0.00%−1−4.3%Reduced
Parkside Financial Bank & Trust14$1.00K0.00%00.0%Unchanged
Bell Investment Advisors, Inc18$1.00K0.00%00.0%Unchanged
Eagle Bay Advisors LLC6$1.00K0.00%00.0%Unchanged
Cullen/Frost Bankers, Inc.18$1.00K0.00%+18New
Blue Bell Private Wealth Management, LLC11$1.00K0.00%+11New
Schubert & Co23$1.00K0.00%+23New
CoreCap Advisors, LLC14$1.00K0.00%+14New
Sutton Wealth Advisors Inc.12$7310.00%+12New
Longfellow Investment Management Co LLC5––00.0%Unchanged
Sunriver Management LLC0$00.00%−265,162−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−175,000−100.0%Sold out
Prana Capital Management, LP0$00.00%−157,717−100.0%Sold out
HRT Financial LP0$00.00%−154,537−100.0%Sold out
AMP Capital Investors Ltd0$00.00%−115,651−100.0%Sold out
Ergoteles LLC0$00.00%−88,500−100.0%Sold out
Redwood Investment Management, LLC0$00.00%−67,571−100.0%Sold out
Jupiter Asset Management Ltd0$00.00%−61,135−100.0%Sold out
Mandatum Life Insurance Co Ltd0$00.00%−54,859−100.0%Sold out
Assenagon Asset Management S.A.0$00.00%−53,566−100.0%Sold out
Bank of Nova Scotia0$00.00%−24,000−100.0%Sold out
MUFG Securities EMEA plc0$00.00%−23,200−100.0%Sold out
Kingsview Wealth Management, LLC0$00.00%−15,404−100.0%Sold out
Alpha Paradigm Partners, LLC0$00.00%−11,750−100.0%Sold out
Maverick Capital LtdSuperinvestorMaverick Capital0$00.00%−11,259−100.0%Sold out
Polar Asset Management Partners Inc.0$00.00%−9,887−100.0%Sold out
E. Ohman J:or Asset Management AB0$00.00%−7,200−100.0%Sold out
Public Sector Pension Investment Board0$00.00%−5,560−100.0%Sold out
Pendal Group Limited0$00.00%−5,124−100.0%Sold out
Simplex Trading, LLC0$00.00%−3,968−100.0%Sold out
Kore Private Wealth LLC0$00.00%−3,661−100.0%Sold out
Brewin Dolphin Ltd0$00.00%−3,400−100.0%Sold out
Pinz Capital Management, LP0$00.00%−3,000−100.0%Sold out
Quantbot Technologies LP0$00.00%−1,161−100.0%Sold out
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main0$00.00%−1,134−100.0%Sold out
Global Retirement Partners, LLC0$00.00%−1,095−100.0%Sold out
O'Shaughnessy Asset Management, LLC0$00.00%−604−100.0%Sold out
Gerber Kawasaki Wealth & Investment Management0$00.00%−433−100.0%Sold out