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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 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, 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
South State Corp.1,654$101.0K0.01%−485−22.7%Reduced
Steward Partners Investment Advisory, LLC1,701$104.0K0.00%−95−5.3%Reduced
Column Capital Advisors, LLC1,880$115.0K0.02%00.0%Unchanged
Parallel Advisors, LLC1,900$116.0K0.00%+1,364+254.5%Added
Howe & Rusling Inc2,000$122.0K0.01%00.0%Unchanged
Accel Wealth Management2,080$127.0K0.06%00.0%Unchanged
US Bancorp2,084$127.0K0.00%+24+1.2%Added
Lumature Wealth Partners, LLC2,500$152.0K0.06%00.0%Unchanged
Venturi Wealth Management, LLC2,600$158.0K0.01%+2,600New
Hills Bank & Trust Co2,703$165.0K0.02%−12−0.4%Reduced
Ci Investments Inc.3,285$200.0K0.00%−310−8.6%Reduced
Mairs & Power Inc3,300$201.0K0.00%+3,300New
Balyasny Asset Management LLC3,321$202.0K0.00%+3,321New
Modera Wealth Management, LLC3,307$202.0K0.01%+3,307New
Valley National Advisers Inc3,359$205.0K0.04%+2,359+235.9%Added
Guggenheim Capital LLC3,395$207.0K0.00%−10,460−75.5%Reduced
JustInvest LLC3,412$208.0K0.01%+3,412New
Pearl River Capital, LLC3,426$209.0K0.06%+3,426New
Kestra Advisory Services, LLC3,445$210.0K0.00%+52+1.5%Added
Neo Ivy Capital Management3,566$217.0K0.31%−2,047−36.5%Reduced
Bokf, NA3,572$218.0K0.00%−191−5.1%Reduced
Pluribus Labs, LLC3,797$231.0K0.24%+3,797New
Congress Wealth Management LLC3,795$231.0K0.00%+3,795New
Redpoint Investment Management Pty Ltd3,814$232.0K0.02%00.0%Unchanged
Paces Ferry Wealth Advisors, LLC3,818$233.0K0.17%−209−5.2%Reduced
Symmetry Partners, LLC3,863$235.0K0.01%00.0%Unchanged
Storebrand Asset Management AS3,908$238.2K0.00%−575−12.8%Reduced
Federation des caisses Desjardins du Quebec3,911$238.2K0.00%−1,478−27.4%Reduced
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
WBH Advisory Inc4,000$244.0K0.03%00.0%Unchanged
CWM Advisors, LLC4,047$247.0K0.03%+162+4.2%Added
Private Advisor Group, LLC4,172$254.0K0.00%+46+1.1%Added
Keebeck Alpha, LP4,161$254.0K0.09%+4,161New
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
Congress Asset Management Co4,249$259.0K0.00%+825+24.1%Added
Citadel Investment Advisory, Inc.4,420$269.0K0.16%00.0%Unchanged
Cadent Capital Advisors, LLC4,491$274.0K0.12%−159−3.4%Reduced
Leavell Investment Management, Inc.4,500$276.0K0.02%−1,000−18.2%Reduced
Pitcairn Co4,541$277.0K0.02%−119−2.6%Reduced
Great Diamond Partners, LLC4,673$284.0K0.07%−8−0.2%Reduced
Allianz Asset Management GmbH4,797$292.0K0.00%+1,074+28.8%Added
Veritable, L.P.4,830$294.0K0.00%+20+0.4%Added
Duality Advisers, LP4,837$295.0K0.03%+4,837New
Cetera Advisor Networks LLC4,906$299.0K0.00%−152−3.0%Reduced
Snowden Capital Advisors LLC4,964$302.0K0.02%−4,018−44.7%Reduced
DF Dent & Co Inc4,953$302.0K0.00%00.0%Unchanged
Advisory Services Network, LLC5,172$316.0K0.01%+50+1.0%Added
Lindenwold Advisors5,353$326.0K0.19%+5,353New
Profund Advisors LLC5,430$331.0K0.01%−314−5.5%Reduced
Investment House LLC5,432$331.0K0.02%00.0%Unchanged
Hennion & Walsh Asset Management, Inc.5,441$332.0K0.02%−71−1.3%Reduced
Y-Intercept (Hong Kong) Ltd5,581$340.0K0.08%+600+12.0%Added
Seeyond5,646$344.0K0.03%00.0%Unchanged
Shelton Capital Management5,682$346.0K0.01%−922−14.0%Reduced
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
TownSquare Capital, LLC5,795$353.0K0.01%+5,795New
Old Mission Capital LLC5,862$357.0K0.02%+5,862New
Sumitomo Mitsui DS Asset Management Company, Ltd5,884$358.0K0.01%−45−0.8%Reduced
Boothbay Fund Management, LLC5,992$365.0K0.01%+5,992New
Diversified Trust Co6,002$366.0K0.01%+1,336+28.6%Added
Dividend Assets Capital, LLC6,045$368.0K0.07%−1,046−14.8%Reduced
Cetera Investment Advisers6,092$371.0K0.01%+1,918+46.0%Added
Neuberger Berman Group LLC6,346$372.0K0.00%+6,346New
Procyon Private Wealth Partners, LLC6,161$375.0K0.08%00.0%Unchanged
Susquehanna Fundamental Investments, LLC6,200$378.0K0.01%+6,200New
Daiwa Securities Group Inc.6,225$379.0K0.00%00.0%Unchanged
BNP PARIBAS ASSET MANAGEMENT Holding S.A.6,280$383.0K0.00%−12,877−67.2%Reduced
CIBC Asset Management Inc6,364$388.0K0.00%+627+10.9%Added
GW Henssler & Associates Ltd6,495$396.0K0.03%+6,495New
Segall Bryant & Hamill, LLC6,732$410.0K0.00%−24−0.4%Reduced
AXA S.A.6,850$417.0K0.00%+6,850New
Bailey Value Limited Partnership7,000$426.0K0.48%+7,000New
Vestmark Advisory Solutions, Inc.7,009$427.0K0.02%+1,061+17.8%Added
Mercer Global Advisors Inc7,046$429.0K0.00%+1,330+23.3%Added
Front Street Capital Management, Inc.7,105$433.0K0.08%−106−1.5%Reduced
Legacy Wealth Asset Management, LLC7,207$439.0K0.15%+106+1.5%Added
Prelude Capital Management, LLC7,242$441.0K0.02%+7,242New
Fayez Sarofim & Co7,300$445.0K0.00%−600−7.6%Reduced
Ghe, LLC7,360$449.0K0.34%+7,360New
Maryland State Retirement & Pension System7,488$456.0K0.01%00.0%Unchanged
Raymond James Trust N.A.7,512$458.0K0.01%−198−2.6%Reduced
Beaumont Financial Partners, LLC7,590$463.0K0.03%−700−8.4%Reduced
Haverford Trust Co7,870$480.0K0.01%00.0%Unchanged
Jane Street Group, LLC8,013$488.0K0.00%−11,561−59.1%Reduced
Point72 Hong Kong Ltd8,766$534.0K0.04%+8,766New
DekaBank Deutsche Girozentrale8,687$537.0K0.00%−2,351−21.3%Reduced
Abbot Financial Management, Inc.8,900$542.0K0.24%00.0%Unchanged
Hillsdale Investment Management Inc.9,150$558.0K0.04%−500−5.2%Reduced
Quadrature Capital Ltd9,157$558.0K0.03%+4,871+113.6%Added
Gotham Asset Management, LLC9,173$559.0K0.02%+9,173New
Nordea Investment Management AB9,138$560.0K0.00%00.0%Unchanged
Fisher Asset Management, LLC9,392$572.0K0.00%−641−6.4%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC9,424$573.0K0.05%00.0%Unchanged
Westpac Banking Corp9,467$576.9K0.01%+452+5.0%Added
Securian Asset Management, Inc9,492$578.0K0.01%−123−1.3%Reduced