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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 2023

Institutional positions in SEI Investments Co as of Dec 31, 2023. 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
491
+37 vs. Q3 2023
Shares held
92.8M
−426.6K (−0.5%) vs. Q3 2023
Total value
$5.90B
+$270.9M (+4.8%) vs. Q3 2023
New holders
69
142 more added
Sold out
32
182 more reduced

8 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: 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 2023: 491 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 2023: $5.90B
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 2023

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q3 2023.

Institutions holding SEIC in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Neuberger Berman Group LLC22,150$1.41M0.00%+961+4.5%Added
Ameritas Investment Partners, Inc.22,081$1.40M0.05%−479−2.1%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys22,067$1.40M0.01%+1,697+8.3%Added
Schechter Investment Advisors, LLC22,023$1.40M0.12%−738−3.2%Reduced
Aurora Investment Counsel24,028$1.39M0.90%+897+3.9%Added
AIA Group Ltd21,111$1.34M0.06%+6,536+44.8%Added
Davenport & Co LLC21,040$1.34M0.01%00.0%Unchanged
New Mexico Educational Retirement Board20,800$1.32M0.05%00.0%Unchanged
Captrust Financial Advisors20,630$1.31M0.00%+290+1.4%Added
Pensionfund Sabic20,500$1.30M0.41%00.0%Unchanged
IFM Investors Pty Ltd20,362$1.29M0.02%−1,991−8.9%Reduced
Moors & Cabot, Inc.19,871$1.26M0.08%00.0%Unchanged
Pacer Advisors, Inc.19,864$1.26M0.00%+7,866+65.6%Added
Duality Advisers, LP19,530$1.24M0.13%+19,530New
Panagora Asset Management Inc18,748$1.19M0.01%00.0%Unchanged
Pathstone Holdings, LLC18,719$1.19M0.01%+18,719New
AlTi Global, Inc.18,521$1.19M0.04%+18,521New
Intech Investment Management LLC18,135$1.15M0.02%+5,826+47.3%Added
Stifel Financial Corp17,984$1.14M0.00%+10,660+145.5%Added
Lido Advisors, LLC17,775$1.14M0.01%−17,846−50.1%Reduced
Lafayette Investments, Inc.17,887$1.14M0.28%−560−3.0%Reduced
Donald L. Hagan, LLC17,794$1.13M0.63%−384−2.1%Reduced
DnB Asset Management AS17,676$1.12M0.01%−2,230−11.2%Reduced
Utah Retirement Systems17,574$1.12M0.01%00.0%Unchanged
Voya Investment Management LLC17,523$1.11M0.00%−87,984−83.4%Reduced
Baird Financial Group, Inc.17,482$1.11M0.00%−1,467−7.7%Reduced
Cresset Asset Management, LLC17,368$1.11M0.01%−1,231−6.6%Reduced
Tredje AP-fonden17,128$1.09M0.01%−1,579−8.4%Reduced
Ashton Thomas Private Wealth, LLC16,921$1.08M0.07%−960−5.4%Reduced
Centiva Capital, LP16,827$1.07M0.07%+16,827New
Jump Financial, LLC16,601$1.05M0.03%+16,601New
Wealth Enhancement Advisory Services, LLC16,463$1.05M0.00%−355−2.1%Reduced
Oppenheimer Asset Management Inc.16,200$1.03M0.01%−569−3.4%Reduced
JustInvest LLC16,150$1.03M0.03%+532+3.4%Added
Federation des caisses Desjardins du Quebec16,123$1.02M0.01%+14,153+718.4%Added
1832 Asset Management L.P.16,059$1.02M0.00%−697−4.2%Reduced
Boston Financial Mangement LLC15,900$1.01M0.03%00.0%Unchanged
TownSquare Capital, LLC15,638$993.8K0.02%−19,114−55.0%Reduced
Worldquant Millennium Advisors LLC15,430$980.6K0.01%+10,265+198.7%Added
Public Sector Pension Investment Board15,022$954.6K0.01%+918+6.5%Added
Susquehanna International Group, LLP14,755$937.7K0.00%+9,319+171.4%Added
Gould Capital, LLC14,668$932.2K0.68%−76−0.5%Reduced
Gotham Asset Management, LLC14,577$926.4K0.02%−3,032−17.2%Reduced
Valley National Advisers Inc14,512$922.0K0.15%−742−4.9%Reduced
Inceptionr LLC14,071$894.2K0.64%+14,071New
Aviva PLC14,063$893.7K0.00%+377+2.8%Added
Point72 Europe (London) LLP13,574$862.6K0.11%+13,574New
Quantbot Technologies LP13,558$861.6K0.05%+13,558New
Nissay Asset Management Corp13,250$842.0K0.01%+373+2.9%Added
British Columbia Investment Management Corp12,950$823.0K0.01%+2,680+26.1%Added
TD Waterhouse Canada Inc.12,313$821.4K0.01%+861+7.5%Added
AE Wealth Management LLC12,789$817.2K0.00%−4,598−26.4%Reduced
CI Private Wealth, LLC12,768$811.4K0.00%+4,131+47.8%Added
True Wealth Design, LLC12,626$802.4K0.23%−12−0.1%Reduced
Xponance, Inc.12,499$794.3K0.01%−98−0.8%Reduced
Brevan Howard Capital Management LP12,295$781.3K0.08%+12,295New
Nilsine Partners, LLC11,753$746.9K0.11%−6,011−33.8%Reduced
Hennion & Walsh Asset Management, Inc.11,720$744.8K0.04%−146−1.2%Reduced
Tower Research Capital LLC (TRC)11,631$739.1K0.01%+7,487+180.7%Added
Natixis11,592$736.7K0.01%−6,823−37.1%Reduced
SG Americas Securities, LLC11,291$718.0K0.01%+306+2.8%Added
Federated Hermes, Inc.11,262$715.7K0.00%−1,448−11.4%Reduced
Parallel Advisors, LLC11,116$706.4K0.02%+93+0.8%Added
M&T Bank Corp11,054$702.7K0.00%−1,865−14.4%Reduced
Twinbeech Capital LP11,023$700.5K0.01%+11,023New
Cerity Partners LLC10,739$682.5K0.00%+420+4.1%Added
BancorpSouth Bank10,623$675.1K0.05%00.0%Unchanged
Weiss Asset Management LP10,607$674.1K0.05%+10,607New
Commerce Bank10,598$673.5K0.00%−83−0.8%Reduced
HighTower Advisors, LLC10,217$643.0K0.00%+915+9.8%Added
RBF Capital, LLC10,000$635.5K0.04%00.0%Unchanged
Patton Albertson Miller Group, LLC9,950$632.3K0.11%00.0%Unchanged
Prudential Financial Inc9,927$630.9K0.00%−48,072−82.9%Reduced
Mackenzie Financial Corp9,722$617.8K0.00%−833−7.9%Reduced
Logan Capital Management Inc9,700$616.4K0.03%00.0%Unchanged
Patten & Patten Inc9,500$603.7K0.05%00.0%Unchanged
Nordea Investment Management AB9,445$601.2K0.00%+841+9.8%Added
Northwest Investment Counselors, LLC9,416$598.4K0.16%−1,210−11.4%Reduced
Lecap Asset Management Ltd9,398$597.2K0.22%+9,398New
Gulf International Bank (UK) Ltd9,309$591.0K0.02%−1,512−14.0%Reduced
Versor Investments LP9,282$589.9K0.12%+1,500+19.3%Added
NBC Securities, Inc.9,249$587.0K0.06%−6−0.1%Reduced
Crossmark Global Holdings, Inc.9,011$572.0K0.01%−714−7.3%Reduced
Hillsdale Investment Management Inc.9,000$572.0K0.05%−500−5.3%Reduced
Wellington Shields & Co., LLC9,000$572.0K0.21%00.0%Unchanged
Raymond James Trust N.A.8,923$567.1K0.02%+97+1.1%Added
Fisher Asset Management, LLC8,648$549.6K0.00%+500+6.1%Added
Merit Financial Group, LLC8,615$547.5K0.02%+3,877+81.8%Added
Janus Henderson Group PLC8,607$547.1K0.00%−87−1.0%Reduced
Securian Asset Management, Inc8,420$535.1K0.02%−100−1.2%Reduced
Maryland State Retirement & Pension System8,132$516.8K0.01%00.0%Unchanged
Canada Pension Plan Investment Board8,000$508.4K0.00%−12,000−60.0%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd7,903$502.2K0.01%00.0%Unchanged
Custom Index Systems, LLC7,889$501.3K0.32%+7,889New
Fayez Sarofim & Co7,300$486.5K0.00%00.0%Unchanged
Nelson, Van Denburg & Campbell Wealth Management Group, LLC7,625$484.6K0.03%00.0%Unchanged
Mercer Global Advisors Inc7,422$472.0K0.00%+250+3.5%Added
Front Street Capital Management, Inc.7,328$466.0K0.09%+223+3.1%Added
Daiwa Securities Group Inc.7,300$464.0K0.00%+400+5.8%Added
Creative Planning7,160$455.0K0.00%−2,008−21.9%Reduced