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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, Q1 2024

Institutional positions in SEI Investments Co as of Mar 31, 2024. 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
475
−10 vs. Q4 2023
Shares held
94.2M
+1.49M (+1.6%) vs. Q4 2023
Total value
$6.77B
+$876.6M (+14.9%) vs. Q4 2023
New holders
47
141 more added
Sold out
57
185 more reduced

6 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2024: 475 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 heldQ1 2024: $6.77B
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, Q1 2024

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q4 2023.

Institutions holding SEIC in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Manufacturers Life Insurance Company, The92,115$6.62M0.01%+4,375+5.0%Added
Modera Wealth Management, LLC90,751$6.53M0.10%−1,003−1.1%Reduced
Bank of Nova Scotia90,440$6.50M0.01%−24,400−21.2%Reduced
Bridgewater Associates, LP89,395$6.43M0.03%−43,441−32.7%Reduced
Texas Permanent School Fund87,252$6.27M0.05%+860+1.0%Added
Mirae Asset Global Investments Co., Ltd.86,028$6.19M0.01%+1,391+1.6%Added
State of Wisconsin Investment Board83,816$6.03M0.02%−13,897−14.2%Reduced
Ensign Peak Advisors, Inc83,073$5.97M0.01%−6,526−7.3%Reduced
Foyston, Gordon, & Payne Inc81,311$5.85M1.41%−3,119−3.7%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund77,147$5.55M0.06%−6,800−8.1%Reduced
Balyasny Asset Management LLC73,207$5.26M0.01%−91,807−55.6%Reduced
Holocene Advisors, LP71,974$5.17M0.02%+16,928+30.8%Added
Algert Global LLC71,093$5.11M0.20%−1,519−2.1%Reduced
Union Heritage Capital, LLC68,700$4.94M1.96%+9,650+16.3%Added
RK Asset Management, LLC67,945$4.88M3.98%−749−1.1%Reduced
Meiji Yasuda Asset Management Co Ltd.67,890$4.88M0.21%−7,992−10.5%Reduced
Storebrand Asset Management AS67,654$4.86M0.02%−744−1.1%Reduced
Southernsun Asset Management, LLC66,531$4.78M0.53%−10,829−14.0%Reduced
Hahn Capital Management LLC66,228$4.76M2.85%−38,678−36.9%Reduced
LPL Financial LLC65,877$4.74M0.00%−5,674−7.9%Reduced
Public Employees Retirement System of Ohio65,672$4.72M0.02%+8,958+15.8%Added
Court Place Advisors, LLC62,757$4.51M1.46%−3,966−5.9%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.62,518$4.50M0.01%+10,670+20.6%Added
Pictet Asset Management Holding SA62,266$4.48M0.00%−9,729−13.5%Reduced
CWM, LLC62,199$4.47M0.02%−10,386−14.3%Reduced
Squarepoint Ops LLC61,530$4.42M0.02%−26,311−30.0%Reduced
Taylor Hoffman Wealth Management61,270$4.41M1.87%+685+1.1%Added
Macquarie Group Ltd59,620$4.29M0.00%+190+0.3%Added
Mutual of America Capital Management LLC59,402$4.27M0.05%−2,453−4.0%Reduced
IFG Advisory, LLC59,062$4.25M0.32%+770+1.3%Added
Amalgamated Bank58,201$4.18M0.04%−5,690−8.9%Reduced
HBK Sorce Advisory LLC57,850$4.16M0.15%−43−0.1%Reduced
Asset Management One Co.,Ltd.57,588$4.14M0.02%−11,601−16.8%Reduced
MetLife Investment Management54,783$3.94M0.03%−1,615−2.9%Reduced
Diversified Trust Co54,010$3.88M0.12%−1,220−2.2%Reduced
West Coast Financial LLC52,591$3.78M0.46%−47−0.1%Reduced
Price T Rowe Associates Inc51,860$3.73M0.00%+769+1.5%Added
Vontobel Holding Ltd.49,490$3.56M0.03%00.0%Unchanged
Van Eck Associates Corp47,359$3.40M0.01%−19,162−28.8%Reduced
BNP Paribas Arbitrage, SA47,289$3.40M0.00%−20,850−30.6%Reduced
Banco Santander, S.A.47,160$3.39M0.04%−9,540−16.8%Reduced
Yousif Capital Management, LLC46,773$3.36M0.04%−1,103−2.3%Reduced
State of New Jersey Common Pension Fund D46,743$3.36M0.01%00.0%Unchanged
Natixis46,200$3.32M0.02%+34,608+298.6%Added
Treasurer of the State of North Carolina44,844$3.22M0.01%−1,130−2.5%Reduced
Federation des caisses Desjardins du Quebec46,309$3.20M0.02%+30,186+187.2%Added
Nisa Investment Advisors, LLC43,837$3.15M0.02%00.0%Unchanged
Henshaw Capital LLC42,752$3.07M0.14%+310+0.7%Added
Ingalls & Snyder LLC42,450$3.05M0.14%−500−1.2%Reduced
Wells Fargo & Company42,238$3.04M0.00%−45−0.1%Reduced
Comerica Bank41,978$3.02M0.01%−2,922−6.5%Reduced
Toronto Dominion Bank41,042$2.95M0.00%−3,765−8.4%Reduced
Thrive Wealth Management, LLC40,723$2.93M0.61%−39,125−49.0%Reduced
Sepio Capital, LP40,249$2.89M0.25%−1,834−4.4%Reduced
Gries Financial LLC39,777$2.86M0.48%−174−0.4%Reduced
Wealth Alliance Advisory Group, LLC37,504$2.70M0.63%00.0%Unchanged
Standard Life Aberdeen plc37,422$2.69M0.01%+499+1.4%Added
Royal London Asset Management Ltd36,645$2.63M0.01%+1,150+3.2%Added
Resona Asset Management Co.,Ltd.36,447$2.62M0.02%+36,447New
US Bancorp36,178$2.60M0.00%−459−1.3%Reduced
Atria Investments LLC36,125$2.60M0.04%+1,497+4.3%Added
NJ State Employees Deferred Compensation Plan35,400$2.55M0.32%00.0%Unchanged
Glenmede Trust Co NA34,430$2.48M0.01%+763+2.3%Added
Teachers Retirement System of the State of Kentucky33,444$2.40M0.02%00.0%Unchanged
The PNC Financial Services Group, Inc.32,209$2.32M0.00%−2,794−8.0%Reduced
Vident Advisory, LLC32,060$2.31M0.05%+1,917+6.4%Added
Procyon Private Wealth Partners, LLC31,874$2.29M0.18%+2,584+8.8%Added
Duality Advisers, LP31,581$2.27M0.22%+12,051+61.7%Added
Cresset Asset Management, LLC31,023$2.23M0.01%+13,655+78.6%Added
Brandywine Global Investment Management, LLC30,837$2.22M0.02%−500−1.6%Reduced
Arizona State Retirement System30,764$2.21M0.02%−156−0.5%Reduced
Johnson Investment Counsel Inc29,914$2.15M0.02%−10,186−25.4%Reduced
CWM Advisors, LLC29,376$2.11M0.22%+2,588+9.7%Added
State of Tennessee, Treasury Department29,000$2.09M0.01%00.0%Unchanged
Louisiana State Employees Retirement System28,700$2.06M0.04%+600+2.1%Added
Zurcher Kantonalbank (Zurich Cantonalbank)28,151$2.02M0.01%−11,034−28.2%Reduced
Nomura Asset Management Co Ltd27,606$1.98M0.01%−2,544−8.4%Reduced
Bright Rock Capital Management, LLC27,600$1.98M0.41%00.0%Unchanged
Investment Management Corp of Ontario27,163$1.95M0.06%−14,275−34.4%Reduced
Pathstone Holdings, LLC26,891$1.93M0.01%+8,172+43.7%Added
Chevy Chase Trust Holdings, Inc.26,754$1.92M0.01%+244+0.9%Added
Quest Partners LLC26,673$1.92M0.33%−728−2.7%Reduced
State of Michigan Retirement System26,624$1.91M0.01%+500+1.9%Added
Smithbridge Asset Management Inc26,201$1.88M0.39%00.0%Unchanged
Illinois Municipal Retirement Fund26,089$1.88M0.03%00.0%Unchanged
Raymond James Financial Services Advisors, Inc.25,907$1.86M0.00%+146+0.6%Added
Stephens Inc25,607$1.84M0.03%−6,783−20.9%Reduced
TrimTabs Asset Management, LLC25,090$1.80M0.45%+466+1.9%Added
Handelsbanken Fonder AB24,800$1.78M0.01%00.0%Unchanged
Aurora Investment Counsel24,623$1.77M1.01%+595+2.5%Added
Oregon Public Employees Retirement Fund24,616$1.77M0.04%−7,378−23.1%Reduced
Capital Fund Management S.A.24,400$1.75M0.02%−6,952−22.2%Reduced
Linden Thomas Advisory Services, LLC24,246$1.74M0.28%+46+0.2%Added
Ontario Teachers Pension Plan Board24,017$1.73M0.02%+1,587+7.1%Added
O'Shaughnessy Asset Management, LLC22,919$1.65M0.02%+18,342+400.7%Added
Oliver Luxxe Assets LLC22,570$1.62M0.34%00.0%Unchanged
Neuberger Berman Group LLC22,298$1.60M0.00%+148+0.7%Added
Northwestern Mutual Investment Management Company, LLC22,237$1.60M0.04%−12−0.1%Reduced
Ameritas Investment Partners, Inc.22,081$1.59M0.05%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys22,053$1.59M0.01%−14−0.1%Reduced