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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, Q3 2022

Institutional positions in SEI Investments Co as of Sep 30, 2022. 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
433
−22 vs. Q2 2022
Shares held
94.3M
−1.22M (−1.3%) vs. Q2 2022
Total value
$4.63B
−$551.2M (−10.6%) vs. Q2 2022
New holders
28
132 more added
Sold out
50
169 more reduced

1 institution that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2022: 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 holdersQ3 2022: 433 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 heldQ3 2022: $4.63B
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, Q3 2022

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q2 2022.

Institutions holding SEIC in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Gladius Capital Management LP2,816$139.0K0.02%+2,816New
Signaturefd, LLC2,971$146.0K0.00%−1,263−29.8%Reduced
JJJ Advisors Inc.3,417$167.0K0.05%+175+5.4%Added
Meeder Asset Management Inc3,479$171.0K0.01%−742−17.6%Reduced
Tower Research Capital LLC (TRC)4,128$202.0K0.00%−4,460−51.9%Reduced
Wrapmanager Inc4,134$203.0K0.07%−254−5.8%Reduced
Dividend Assets Capital, LLC4,200$206.0K0.05%−95−2.2%Reduced
Ghe, LLC16,934$213.0K0.24%+10,682+170.9%Added
Convergence Investment Partners, LLC4,403$216.0K0.14%−156−3.4%Reduced
Great Diamond Partners, LLC4,421$216.0K0.07%−51−1.1%Reduced
MQS Management LLC4,425$217.0K0.14%+4,425New
Citadel Investment Advisory, Inc.4,470$219.0K0.17%−10−0.2%Reduced
Cadent Capital Advisors, LLC4,491$220.0K0.13%00.0%Unchanged
ExodusPoint Capital Management, LP4,586$225.0K0.00%−77,308−94.4%Reduced
GW Henssler & Associates Ltd4,677$229.0K0.02%−35−0.7%Reduced
Private Advisor Group, LLC4,698$230.0K0.00%−159−3.3%Reduced
IFG Advisory, LLC4,750$232.0K0.02%−1,070−18.4%Reduced
Pathstone Family Office, LLC4,761$233.3K0.00%+4,761New
Veritable, L.P.4,810$236.0K0.00%−718−13.0%Reduced
Baldwin Investment Management, LLC4,900$240.0K0.09%−2,630−34.9%Reduced
Cetera Investment Advisers5,084$249.0K0.00%−1,002−16.5%Reduced
Seeyond5,098$250.0K0.03%−276−5.1%Reduced
Federation des caisses Desjardins du Quebec5,152$252.7K0.00%−18−0.3%Reduced
Engineers Gate Manager LP5,162$253.0K0.02%−6,470−55.6%Reduced
Forsta Ap-Fonden5,200$255.0K0.00%+1,900+57.6%Added
Investment House LLC5,432$266.0K0.02%00.0%Unchanged
Ethic Inc.5,614$275.0K0.02%−765−12.0%Reduced
Daiwa Securities Group Inc.5,611$275.0K0.00%+55+1.0%Added
Commonwealth Equity Services, LLC5,648$277.0K0.00%+26+0.5%Added
Shelton Capital Management5,682$279.0K0.01%00.0%Unchanged
Grant/GrossMendelsohn, LLC5,700$279.0K0.15%00.0%Unchanged
Vestmark Advisory Solutions, Inc.5,799$284.0K0.02%+377+7.0%Added
Balentine LLC5,875$288.0K0.01%−1,587−21.3%Reduced
Lindenwold Advisors5,873$288.0K0.21%+9+0.2%Added
Sumitomo Mitsui DS Asset Management Company, Ltd5,862$288.0K0.01%+73+1.3%Added
Diversified Trust Co5,945$292.0K0.01%+5,945New
Umb Bank N A6,004$294.0K0.00%−11,119−64.9%Reduced
Mercer Global Advisors Inc5,990$294.0K0.00%−1,052−14.9%Reduced
Wilbanks Smith & Thomas Asset Management LLC6,091$299.0K0.01%−188−3.0%Reduced
Grantham, Mayo, Van Otterloo & Co. LLC6,100$299.0K0.00%+1,200+24.5%Added
O'Shaughnessy Asset Management, LLC6,321$310.0K0.01%+6,321New
Creative Planning6,455$317.0K0.00%+1,670+34.9%Added
Procyon Private Wealth Partners, LLC6,637$326.0K0.08%+25+0.4%Added
Haverford Trust Co6,670$327.0K0.00%00.0%Unchanged
Segall Bryant & Hamill, LLC6,732$330.0K0.00%00.0%Unchanged
Beaumont Financial Partners, LLC6,815$334.0K0.03%00.0%Unchanged
Bailey Value Limited Partnership7,000$343.0K0.59%00.0%Unchanged
Verition Fund Management LLC7,111$349.0K0.00%−52,069−88.0%Reduced
Front Street Capital Management, Inc.7,105$349.0K0.09%00.0%Unchanged
Mariner, LLC7,138$350.0K0.00%+7,138New
Fayez Sarofim & Co7,300$358.0K0.00%00.0%Unchanged
Jefferies Group LLC7,300$358.1K0.01%+7,300New
Neuberger Berman Group LLC7,365$361.0K0.00%+3,269+79.8%Added
Oak Thistle LLC7,591$372.0K1.34%+1,689+28.6%Added
Boothbay Fund Management, LLC7,591$372.0K0.01%+2,393+46.0%Added
Nelson, Van Denburg & Campbell Wealth Management Group, LLC7,625$373.0K0.03%00.0%Unchanged
Ergoteles LLC7,728$379.0K0.01%+7,728New
Glenmede Trust Co NA8,000$392.0K0.00%00.0%Unchanged
HighTower Advisors, LLC7,964$393.0K0.00%−13−0.2%Reduced
King Luther Capital Management Corp8,140$399.0K0.00%−1,000−10.9%Reduced
Raymond James Trust N.A.8,304$408.0K0.02%−545−6.2%Reduced
Cubist Systematic Strategies, LLC8,385$411.0K0.00%−77,273−90.2%Reduced
Snowden Capital Advisors LLC8,383$411.0K0.02%−1,340−13.8%Reduced
Hennion & Walsh Asset Management, Inc.8,374$411.0K0.03%+3,016+56.3%Added
CIBC Asset Management Inc8,596$422.0K0.00%+2,368+38.0%Added
AdvisorShares Investments LLC8,658$425.0K0.11%+8,658New
Westpac Banking Corp9,015$442.2K0.01%00.0%Unchanged
Prudential Financial Inc8,916$450.0K0.00%−385−4.1%Reduced
Securian Asset Management, Inc9,402$461.0K0.01%−108−1.1%Reduced
Telos Capital Management, Inc.9,600$471.0K0.08%00.0%Unchanged
Logan Capital Management Inc9,700$476.0K0.03%00.0%Unchanged
Fisher Asset Management, LLC9,854$483.0K0.00%−40.0%Reduced
Ashfield Capital Partners, LLC9,845$483.0K0.04%00.0%Unchanged
RBF Capital, LLC10,000$491.0K0.04%00.0%Unchanged
Wellington Shields & Co., LLC10,000$491.0K0.21%00.0%Unchanged
Caxton Associates LP10,008$491.0K0.08%+10,008New
Standard Life Aberdeen plc10,189$500.0K0.00%+1,533+17.7%Added
Nordea Investment Management AB9,964$503.0K0.00%00.0%Unchanged
Interval Partners, LP10,299$505.0K0.03%00.0%Unchanged
Crawford Investment Counsel Inc10,596$520.0K0.01%−719−6.4%Reduced
Commerce Bank10,716$526.0K0.00%−46−0.4%Reduced
Crossmark Global Holdings, Inc.10,800$530.0K0.01%−80−0.7%Reduced
HRT Financial LP10,852$532.0K0.01%+10,852New
TD Waterhouse Canada Inc.9,993$534.0K0.01%−657−6.2%Reduced
Public Sector Pension Investment Board10,900$535.0K0.00%+10,900New
Public Employees Retirement Association of Colorado10,923$536.0K0.00%00.0%Unchanged
BancorpSouth Bank10,993$539.0K0.06%00.0%Unchanged
Intech Investment Management LLC11,013$540.2K0.00%−12,904−54.0%Reduced
BI Asset Management Fondsmaeglerselskab A/S11,056$542.0K0.03%+11,056New
Northwest Investment Counselors, LLC11,202$549.0K0.18%−158−1.4%Reduced
United Services Automobile Association11,256$552.0K0.02%00.0%Unchanged
TownSquare Capital, LLC11,405$559.0K0.02%−144−1.2%Reduced
British Columbia Investment Management Corp11,530$566.0K0.01%−2,186−15.9%Reduced
Patton Albertson Miller Group, LLC11,800$579.0K0.12%00.0%Unchanged
Xponance, Inc.12,253$601.0K0.01%−309−2.5%Reduced
AE Wealth Management LLC12,904$633.0K0.01%+3,654+39.5%Added
Gotham Asset Management, LLC12,923$634.0K0.02%−15,493−54.5%Reduced
Millennium Management LLC13,130$644.0K0.00%−708,930−98.2%Reduced
Guggenheim Capital LLC14,120$693.0K0.01%+14,120New
Nissay Asset Management Corp14,415$707.0K0.01%+312+2.2%Added