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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 2023

Institutional positions in SEI Investments Co as of Sep 30, 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
462
+7 vs. Q2 2023
Shares held
93.4M
+292.8K (+0.3%) vs. Q2 2023
Total value
$5.63B
+$106.9M (+1.9%) vs. Q2 2023
New holders
47
152 more added
Sold out
40
165 more reduced

3 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2023: 462 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 2023: $5.63B
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 2023

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q2 2023.

Institutions holding SEIC in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Schonfeld Strategic Advisors LLC88,571$5.33M0.05%+73,987+507.3%Added
Mirae Asset Global Investments Co., Ltd.88,264$5.32M0.01%−45−0.1%Reduced
Texas Permanent School Fund85,432$5.15M0.05%−3,773−4.2%Reduced
Foyston, Gordon, & Payne Inc84,489$5.09M1.39%+5,964+7.6%Added
Ensign Peak Advisors, Inc79,911$4.81M0.01%−5,708−6.7%Reduced
Pictet Asset Management Holding SA79,804$4.81M0.01%+79,804New
Southernsun Asset Management, LLC77,547$4.67M0.55%−2,626−3.3%Reduced
CWM, LLC76,568$4.61M0.03%−942−1.2%Reduced
Robeco Institutional Asset Management B.V.73,456$4.42M0.01%+15,468+26.7%Added
Two Sigma Investments, LP73,256$4.41M0.01%+73,256New
Algert Global LLC73,086$4.40M0.21%−31,887−30.4%Reduced
Storebrand Asset Management AS72,587$4.37M0.02%−775−1.1%Reduced
Meiji Yasuda Asset Management Co Ltd.71,755$4.32M0.20%−3,710−4.9%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund71,647$4.32M0.06%+24,500+52.0%Added
BNP Paribas Arbitrage, SA71,154$4.29M0.01%+13,651+23.7%Added
Russell Investments Group, Ltd.70,779$4.26M0.01%+20,597+41.0%Added
Court Place Advisors, LLC69,283$4.17M1.48%−725−1.0%Reduced
Amalgamated Bank66,176$3.99M0.03%−1,662−2.4%Reduced
Mutual of America Capital Management LLC65,441$3.94M0.05%−8,318−11.3%Reduced
RK Asset Management, LLC64,744$3.90M3.65%00.0%Unchanged
Prana Capital Management, LP63,103$3.80M0.25%+63,103New
Banco Santander, S.A.62,820$3.78M0.05%−2,860−4.4%Reduced
Asset Management One Co.,Ltd.62,714$3.78M0.02%+19,629+45.6%Added
LPL Financial LLC62,176$3.74M0.00%+14,722+31.0%Added
Van Eck Associates Corp60,723$3.66M0.01%+25,242+71.1%Added
Public Employees Retirement System of Ohio59,463$3.58M0.02%−2,804−4.5%Reduced
Union Heritage Capital, LLC59,050$3.56M2.02%00.0%Unchanged
Prudential Financial Inc57,999$3.49M0.01%+36,038+164.1%Added
State of New Jersey Common Pension Fund D57,922$3.49M0.01%+3,072+5.6%Added
HBK Sorce Advisory LLC57,841$3.48M0.15%−20.0%Reduced
MetLife Investment Management57,670$3.47M0.03%−3,053−5.0%Reduced
Achmea Investment Management B.V.56,997$3.43M0.07%+18,652+48.6%Added
Taylor Hoffman Wealth Management56,513$3.40M1.75%+180+0.3%Added
Two Sigma Advisers, LP54,900$3.31M0.01%+54,900New
The PNC Financial Services Group, Inc.54,604$3.29M0.00%−1,157−2.1%Reduced
Jane Street Group, LLC52,807$3.18M0.00%−13,560−20.4%Reduced
Ingalls & Snyder LLC52,700$3.17M0.15%−550−1.0%Reduced
Toronto Dominion Bank52,123$3.14M0.01%−1,545−2.9%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.51,848$3.12M0.01%+9,666+22.9%Added
Putnam Investments LLC51,494$3.10M0.00%+29,034+129.3%Added
Price T Rowe Associates Inc50,484$3.04M0.00%−514−1.0%Reduced
West Coast Financial LLC49,033$2.95M0.44%+893+1.9%Added
Sepio Capital, LP48,279$2.91M0.25%+342+0.7%Added
Yousif Capital Management, LLC48,216$2.90M0.04%−2,980−5.8%Reduced
Glenmede Trust Co NA47,947$2.89M0.02%+14,241+42.3%Added
Treasurer of the State of North Carolina46,128$2.78M0.02%+235+0.5%Added
D. E. Shaw & Co., Inc.45,425$2.74M0.00%+45,425New
Comerica Bank45,068$2.71M0.01%−292,088−86.6%Reduced
Nisa Investment Advisors, LLC43,837$2.64M0.02%00.0%Unchanged
ExodusPoint Capital Management, LP43,401$2.61M0.03%−8,836−16.9%Reduced
Squarepoint Ops LLC43,272$2.61M0.01%+22,975+113.2%Added
Vontobel Holding Ltd.43,020$2.59M0.02%−8,243−16.1%Reduced
Henshaw Capital LLC42,442$2.56M0.15%00.0%Unchanged
Wells Fargo & Company42,042$2.53M0.00%−1,418−3.3%Reduced
Stephens Inc40,643$2.45M0.05%−1,022−2.5%Reduced
Gries Financial LLC40,511$2.44M0.66%−1,207−2.9%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)40,453$2.44M0.01%+2,152+5.6%Added
Johnson Investment Counsel Inc40,100$2.42M0.03%00.0%Unchanged
Bank of Nova Scotia39,482$2.38M0.01%+22,503+132.5%Added
Korea Investment CORP38,286$2.31M0.01%+765+2.0%Added
Royal London Asset Management Ltd37,966$2.29M0.01%+9,333+32.6%Added
Wealth Alliance Advisory Group, LLC37,504$2.26M0.67%00.0%Unchanged
Skandinaviska Enskilda Banken AB (publ)37,385$2.25M0.01%+13,684+57.7%Added
US Bancorp35,894$2.16M0.00%+34,168+1,979.6%Added
Lido Advisors, LLC35,621$2.15M0.02%+2,630+8.0%Added
NJ State Employees Deferred Compensation Plan35,400$2.13M0.32%00.0%Unchanged
Teachers Retirement System of the State of Kentucky35,044$2.11M0.02%+16,695+91.0%Added
TownSquare Capital, LLC34,752$2.09M0.04%+2,100+6.4%Added
Atria Investments LLC34,736$2.09M0.04%+691+2.0%Added
Oregon Public Employees Retirement Fund34,594$2.08M0.03%−4,100−10.6%Reduced
Cipher Capital LP32,004$1.93M1.37%+32,004New
Capital Fund Management S.A.31,352$1.89M0.03%+31,352New
Arizona State Retirement System30,914$1.86M0.02%−232−0.7%Reduced
Vident Advisory, LLC29,226$1.76M0.05%+29,226New
Procyon Private Wealth Partners, LLC29,171$1.76M0.18%+13,837+90.2%Added
State of Tennessee, Treasury Department29,000$1.75M0.01%−24,175−45.5%Reduced
Louisiana State Employees Retirement System28,500$1.72M0.04%−1,100−3.7%Reduced
IFG Advisory, LLC27,884$1.68M0.14%+46+0.2%Added
Nomura Asset Management Co Ltd27,631$1.66M0.01%−820−2.9%Reduced
Bright Rock Capital Management, LLC27,600$1.66M0.41%00.0%Unchanged
Desjardins Global Asset Management Inc.27,246$1.64M0.18%+1,487+5.8%Added
Chevy Chase Trust Holdings, Inc.27,157$1.64M0.01%−264−1.0%Reduced
HRT Financial LP27,074$1.63M0.02%−16,781−38.3%Reduced
Graham Capital Management, L.P.27,037$1.63M0.05%+10,407+62.6%Added
Redwood Investment Management, LLC26,357$1.59M0.14%−1,352−4.9%Reduced
State of Michigan Retirement System26,224$1.58M0.01%−1,400−5.1%Reduced
Smithbridge Asset Management Inc26,201$1.58M0.39%00.0%Unchanged
CWM Advisors, LLC26,179$1.58M0.20%−1,803−6.4%Reduced
Illinois Municipal Retirement Fund26,089$1.57M0.03%00.0%Unchanged
Handelsbanken Fonder AB25,900$1.56M0.01%+3,900+17.7%Added
Ontario Teachers Pension Plan Board25,523$1.54M0.02%00.0%Unchanged
Raymond James Financial Services Advisors, Inc.25,349$1.53M0.00%−685−2.6%Reduced
Investment Management Corp of Ontario25,347$1.53M0.06%+15,689+162.4%Added
National Bank of Canada24,347$1.44M0.00%+23,981+6,552.2%Added
Toroso Investments, LLC23,878$1.44M0.04%+1,255+5.5%Added
Linden Thomas Advisory Services, LLC23,440$1.41M0.31%+23,440New
South Dakota Investment Council23,229$1.40M0.03%−14,000−37.6%Reduced
Aurora Investment Counsel23,131$1.39M0.92%−406−1.7%Reduced
Trexquant Investment LP22,823$1.37M0.03%−64,385−73.8%Reduced
Schechter Investment Advisors, LLC22,761$1.37M0.13%+978+4.5%Added