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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
Daiwa Securities Group Inc.6,225$379.0K0.00%00.0%Unchanged
Susquehanna Fundamental Investments, LLC6,200$378.0K0.01%+6,200New
Procyon Private Wealth Partners, LLC6,161$375.0K0.08%00.0%Unchanged
Neuberger Berman Group LLC6,346$372.0K0.00%+6,346New
Cetera Investment Advisers6,092$371.0K0.01%+1,918+46.0%Added
Dividend Assets Capital, LLC6,045$368.0K0.07%−1,046−14.8%Reduced
Diversified Trust Co6,002$366.0K0.01%+1,336+28.6%Added
Boothbay Fund Management, LLC5,992$365.0K0.01%+5,992New
Sumitomo Mitsui DS Asset Management Company, Ltd5,884$358.0K0.01%−45−0.8%Reduced
Old Mission Capital LLC5,862$357.0K0.02%+5,862New
TownSquare Capital, LLC5,795$353.0K0.01%+5,795New
Commonwealth Equity Services, LLC5,727$349.0K0.00%+774+15.6%Added
Fox Run Management, L.L.C.5,731$349.0K0.21%+5,731New
Shelton Capital Management5,682$346.0K0.01%−922−14.0%Reduced
Seeyond5,646$344.0K0.03%00.0%Unchanged
Y-Intercept (Hong Kong) Ltd5,581$340.0K0.08%+600+12.0%Added
Hennion & Walsh Asset Management, Inc.5,441$332.0K0.02%−71−1.3%Reduced
Profund Advisors LLC5,430$331.0K0.01%−314−5.5%Reduced
Investment House LLC5,432$331.0K0.02%00.0%Unchanged
Lindenwold Advisors5,353$326.0K0.19%+5,353New
Advisory Services Network, LLC5,172$316.0K0.01%+50+1.0%Added
Snowden Capital Advisors LLC4,964$302.0K0.02%−4,018−44.7%Reduced
DF Dent & Co Inc4,953$302.0K0.00%00.0%Unchanged
Cetera Advisor Networks LLC4,906$299.0K0.00%−152−3.0%Reduced
Duality Advisers, LP4,837$295.0K0.03%+4,837New
Veritable, L.P.4,830$294.0K0.00%+20+0.4%Added
Allianz Asset Management GmbH4,797$292.0K0.00%+1,074+28.8%Added
Great Diamond Partners, LLC4,673$284.0K0.07%−8−0.2%Reduced
Pitcairn Co4,541$277.0K0.02%−119−2.6%Reduced
Leavell Investment Management, Inc.4,500$276.0K0.02%−1,000−18.2%Reduced
Cadent Capital Advisors, LLC4,491$274.0K0.12%−159−3.4%Reduced
Citadel Investment Advisory, Inc.4,420$269.0K0.16%00.0%Unchanged
Congress Asset Management Co4,249$259.0K0.00%+825+24.1%Added
Petrus Trust Company, LTA4,186$255.0K0.03%−248−5.6%Reduced
Meiji Yasuda Life Insurance Co4,189$255.0K0.00%−201−4.6%Reduced
Private Advisor Group, LLC4,172$254.0K0.00%+46+1.1%Added
Keebeck Alpha, LP4,161$254.0K0.09%+4,161New
CWM Advisors, LLC4,047$247.0K0.03%+162+4.2%Added
WBH Advisory Inc4,000$244.0K0.03%00.0%Unchanged
First Citizens Bank & Trust Co3,918$239.0K0.01%+126+3.3%Added
Alphasimplex Group, LLC3,921$239.0K0.41%+3,921New
Teza Capital Management LLC3,921$239.0K0.06%+3,921New
PEAK6 Investments LLC3,930$239.0K0.01%+3,930New
Federation des caisses Desjardins du Quebec3,911$238.2K0.00%−1,478−27.4%Reduced
Storebrand Asset Management AS3,908$238.2K0.00%−575−12.8%Reduced
Symmetry Partners, LLC3,863$235.0K0.01%00.0%Unchanged
Paces Ferry Wealth Advisors, LLC3,818$233.0K0.17%−209−5.2%Reduced
Redpoint Investment Management Pty Ltd3,814$232.0K0.02%00.0%Unchanged
Pluribus Labs, LLC3,797$231.0K0.24%+3,797New
Congress Wealth Management LLC3,795$231.0K0.00%+3,795New
Bokf, NA3,572$218.0K0.00%−191−5.1%Reduced
Neo Ivy Capital Management3,566$217.0K0.31%−2,047−36.5%Reduced
Kestra Advisory Services, LLC3,445$210.0K0.00%+52+1.5%Added
Pearl River Capital, LLC3,426$209.0K0.06%+3,426New
JustInvest LLC3,412$208.0K0.01%+3,412New
Guggenheim Capital LLC3,395$207.0K0.00%−10,460−75.5%Reduced
Valley National Advisers Inc3,359$205.0K0.04%+2,359+235.9%Added
Balyasny Asset Management LLC3,321$202.0K0.00%+3,321New
Modera Wealth Management, LLC3,307$202.0K0.01%+3,307New
Mairs & Power Inc3,300$201.0K0.00%+3,300New
Ci Investments Inc.3,285$200.0K0.00%−310−8.6%Reduced
Hills Bank & Trust Co2,703$165.0K0.02%−12−0.4%Reduced
Venturi Wealth Management, LLC2,600$158.0K0.01%+2,600New
Lumature Wealth Partners, LLC2,500$152.0K0.06%00.0%Unchanged
Accel Wealth Management2,080$127.0K0.06%00.0%Unchanged
US Bancorp2,084$127.0K0.00%+24+1.2%Added
Howe & Rusling Inc2,000$122.0K0.01%00.0%Unchanged
Parallel Advisors, LLC1,900$116.0K0.00%+1,364+254.5%Added
Column Capital Advisors, LLC1,880$115.0K0.02%00.0%Unchanged
Steward Partners Investment Advisory, LLC1,701$104.0K0.00%−95−5.3%Reduced
South State Corp.1,654$101.0K0.01%−485−22.7%Reduced
Johnson Financial Group, Inc.1,614$98.0K0.01%−233−12.6%Reduced
State of Wyoming1,607$98.0K0.05%+1,607New
JJJ Advisors Inc.1,593$97.0K0.03%+284+21.7%Added
Vestcor Inc1,480$90.0K0.00%−315−17.5%Reduced
PFG Private Wealth Management, LLC1,480$90.0K0.05%+226+18.0%Added
Washington Trust Advisors, Inc.1,433$87.0K0.01%+1,433New
Toth Financial Advisory Corp1,410$86.0K0.01%−25−1.7%Reduced
STRS Ohio1,381$84.0K0.00%00.0%Unchanged
Captrust Financial Advisors1,372$84.0K0.00%+535+63.9%Added
Swedbank AB1,298$79.6K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.1,301$79.0K0.01%+34+2.7%Added
Rockefeller Capital Management L.P.1,274$77.0K0.00%−300−19.1%Reduced
Smithfield Trust Co1,195$73.0K0.00%00.0%Unchanged
Private Ocean, LLC1,200$73.0K0.01%00.0%Unchanged
Fifth Third Bancorp1,169$71.0K0.00%+82+7.5%Added
Livforsakringsbolaget Skandia, Omsesidigt1,154$70.0K0.00%00.0%Unchanged
Seldon Capital LP1,122$68.0K0.04%+1,122New
Sterling Investment Advisors, Ltd.1,031$63.0K0.02%00.0%Unchanged
Whittier Trust Co1,024$62.0K0.00%+131+14.7%Added
Endurance Wealth Management, Inc.1,000$61.0K0.01%00.0%Unchanged
Covestor Ltd992$60.0K0.08%+992New
Loring Wolcott & Coolidge Fiduciary Advisors LLP900$55.0K0.00%00.0%Unchanged
Twin Tree Management, LP872$53.0K0.00%−19−2.1%Reduced
First Manhattan Co871$53.0K0.00%00.0%Unchanged
Meeder Asset Management Inc877$53.0K0.01%+424+93.6%Added
Lazard Asset Management LLC879$53.0K0.00%+469+114.4%Added
Brown Brothers Harriman & Co859$52.0K0.00%00.0%Unchanged
Signaturefd, LLC851$52.0K0.00%+218+34.4%Added
Umb Bank N A844$52.0K0.00%+844New