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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 2024

Institutional positions in SEI Investments Co as of Dec 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
540
+45 vs. Q3 2024
Shares held
91.2M
+90.1K (+0.1%) vs. Q3 2024
Total value
$7.52B
+$1.22B (+19.3%) vs. Q3 2024
New holders
95
160 more added
Sold out
50
186 more reduced

7 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 2024: 540 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 2024: $7.52B
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 2024

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q3 2024.

Institutions holding SEIC in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
State of Wisconsin Investment Board89,057$7.35M0.02%−5,899−6.2%Reduced
LPL Financial LLC88,164$7.27M0.00%+9,607+12.2%Added
Abn Amro Investment Solutions87,915$7.25M0.14%−14,655−14.3%Reduced
Zacks Investment Management86,107$7.10M0.07%+86,107New
Susquehanna Fundamental Investments, LLC84,604$6.98M0.12%+84,604New
Mirae Asset Global Investments Co., Ltd.84,147$6.95M0.03%−49−0.1%Reduced
Modera Wealth Management, LLC83,335$6.87M0.08%−2,415−2.8%Reduced
Achmea Investment Management B.V.82,860$6.83M0.11%−30,040−26.6%Reduced
Manufacturers Life Insurance Company, The82,747$6.82M0.01%−2,495−2.9%Reduced
Andra AP-fonden78,400$6.47M0.10%−77,400−49.7%Reduced
Chevy Chase Trust Holdings, Inc.78,177$6.45M0.02%−1,513−1.9%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.78,204$6.40M0.01%−314−0.4%Reduced
Holocene Advisors, LP75,127$6.20M0.02%+4,991+7.1%Added
BNP Paribas Arbitrage, SA74,764$6.17M0.00%−16,138−17.8%Reduced
Meiji Yasuda Asset Management Co Ltd.74,121$6.11M0.23%−2,305−3.0%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH71,744$5.92M0.01%+71,744New
RK Asset Management, LLC70,559$5.82M4.76%−2,606−3.6%Reduced
Renaissance Technologies LLC70,426$5.81M0.01%−120,900−63.2%Reduced
Ensign Peak Advisors, Inc69,627$5.74M0.01%−4,516−6.1%Reduced
Union Heritage Capital, LLC68,700$5.67M2.09%00.0%Unchanged
Brandywine Global Investment Management, LLC67,880$5.60M0.04%−5,340−7.3%Reduced
Southernsun Asset Management, LLC66,649$5.50M0.68%+1,068+1.6%Added
Balyasny Asset Management LLC66,128$5.45M0.01%−82,671−55.6%Reduced
Taylor Hoffman Capital Management LLC65,185$5.38M1.95%+1,103+1.7%Added
Price T Rowe Associates Inc63,889$5.27M0.00%+7,467+13.2%Added
Public Employees Retirement System of Ohio62,454$5.15M0.02%−2,709−4.2%Reduced
Storebrand Asset Management AS61,230$5.05M0.02%−7,081−10.4%Reduced
ExodusPoint Capital Management, LP60,548$4.99M0.05%+56,358+1,345.1%Added
APG Asset Management N.V.62,300$4.96M0.01%+62,300New
Van Eck Associates Corp59,325$4.89M0.01%−35,280−37.3%Reduced
Pictet Asset Management Holding SA58,980$4.86M0.01%−1,148−1.9%Reduced
Court Place Advisors, LLC58,241$4.80M1.56%−1,909−3.2%Reduced
HBK Sorce Advisory LLC58,024$4.79M0.14%−38−0.1%Reduced
IFG Advisory, LLC57,450$4.74M0.27%−1,068−1.8%Reduced
MetLife Investment Management55,261$4.56M0.02%+4,219+8.3%Added
CWM, LLC54,612$4.50M0.02%−2,614−4.6%Reduced
Nomura Asset Management Co Ltd51,809$4.27M0.01%+61+0.1%Added
Algert Global LLC51,781$4.27M0.10%+2,091+4.2%Added
Mutual of America Capital Management LLC51,753$4.27M0.05%−1,601−3.0%Reduced
Two Sigma Advisers, LP50,100$4.13M0.01%−20,600−29.1%Reduced
Sanctuary Advisors, LLC47,370$4.08M0.03%−10,471−18.1%Reduced
Amalgamated Bank49,067$4.05M0.03%+587+1.2%Added
CIBC Asset Management Inc47,594$3.93M0.01%−984−2.0%Reduced
Asset Management One Co.,Ltd.44,465$3.71M0.01%−27,377−38.1%Reduced
Nisa Investment Advisors, LLC43,777$3.63M0.01%00.0%Unchanged
Treasurer of the State of North Carolina43,937$3.62M0.01%+280+0.6%Added
Wells Fargo & Company43,503$3.59M0.00%−41,506−48.8%Reduced
Henshaw Capital LLC43,056$3.55M0.15%00.0%Unchanged
Bridgewater Associates, LP42,920$3.54M0.02%−10,166−19.2%Reduced
PGGM Investments42,444$3.50M0.05%00.0%Unchanged
Thrive Wealth Management, LLC42,307$3.49M0.63%+362+0.9%Added
Graham Capital Management, L.P.41,956$3.46M0.11%+41,956New
Schonfeld Strategic Advisors LLC41,887$3.45M0.02%+18,165+76.6%Added
Banco Santander, S.A.41,570$3.43M0.04%−730−1.7%Reduced
State of Tennessee, Treasury Department40,498$3.34M0.01%−1,142−2.7%Reduced
Candriam Luxembourg S.C.A.39,962$3.30M0.02%+39,962New
Railway Pension Investments Ltd39,900$3.29M0.04%+26,700+202.3%Added
Nebula Research & Development LLC39,150$3.23M0.38%+5,558+16.5%Added
Phase 2 Partners, LLC38,418$3.17M2.38%+38,418New
Sepio Capital, LP37,917$3.13M0.25%−1,725−4.4%Reduced
Wealth Alliance Advisory Group, LLC37,504$3.09M0.65%00.0%Unchanged
Jump Financial, LLC37,282$3.08M0.06%+37,282New
US Bancorp36,509$3.01M0.00%+235+0.6%Added
Zurcher Kantonalbank (Zurich Cantonalbank)36,237$2.99M0.01%+8,032+28.5%Added
Ingalls & Snyder LLC36,205$2.99M0.12%−5,545−13.3%Reduced
Diversified Trust Co36,054$2.97M0.07%−17,966−33.3%Reduced
Atria Investments LLC36,048$2.97M0.04%+368+1.0%Added
Yousif Capital Management, LLC35,955$2.97M0.03%−1,538−4.1%Reduced
Police & Firemen's Retirement System of New Jersey35,909$2.96M0.03%+35,909New
Procyon Private Wealth Partners, LLC35,602$2.94M0.19%+187+0.5%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund35,534$2.93M0.03%−34,713−49.4%Reduced
NJ State Employees Deferred Compensation Plan35,400$2.92M0.35%00.0%Unchanged
Lansforsakringar Fondforvaltning AB (publ)35,376$2.92M0.02%+35,376New
Pathstone Holdings, LLC35,048$2.89M0.01%+8,900+34.0%Added
Federation des caisses Desjardins du Quebec34,768$2.87M0.01%−1,617−4.4%Reduced
TownSquare Capital, LLC33,974$2.80M0.03%+7,135+26.6%Added
Jain Global LLC33,130$2.73M0.08%+33,130New
Omers Administration Corp32,866$2.71M0.02%−1,015−3.0%Reduced
Arizona State Retirement System32,065$2.64M0.02%+69+0.2%Added
King Luther Capital Management Corp32,063$2.64M0.01%+32,063New
CWM Advisors, LLC31,668$2.61M0.29%00.0%Unchanged
Resona Asset Management Co.,Ltd.31,219$2.58M0.02%−2,799−8.2%Reduced
Mediolanum International Funds Ltd31,124$2.57M0.03%+10,465+50.7%Added
Teachers Retirement System of the State of Kentucky31,054$2.56M0.02%−1,520−4.7%Reduced
Comerica Bank31,036$2.56M0.01%−1,775−5.4%Reduced
Toronto Dominion Bank30,910$2.55M0.00%−10,081−24.6%Reduced
TrimTabs Asset Management, LLC30,499$2.52M0.33%+9,672+46.4%Added
Gries Financial LLC30,413$2.51M0.45%−598−1.9%Reduced
Portfolio Design Labs, LLC30,102$2.48M0.51%+5,522+22.5%Added
Johnson Investment Counsel Inc29,941$2.47M0.02%+41+0.1%Added
State of New Jersey Common Pension Fund D29,500$2.43M0.01%00.0%Unchanged
Crestline Management, LP29,125$2.40M0.08%+7,620+35.4%Added
Convergence Investment Partners, LLC28,850$2.38M0.53%+10,120+54.0%Added
Quantinno Capital Management LP27,956$2.31M0.02%+10,365+58.9%Added
STRS Ohio27,835$2.30M0.01%+60+0.2%Added
AlTi Global, Inc.27,471$2.28M0.06%+8,470+44.6%Added
Bright Rock Capital Management, LLC27,600$2.28M0.49%00.0%Unchanged
The PNC Financial Services Group, Inc.27,508$2.27M0.00%−1,053−3.7%Reduced
Louisiana State Employees Retirement System27,200$2.24M0.04%−200−0.7%Reduced
O'Shaughnessy Asset Management, LLC26,636$2.20M0.02%−2,614−8.9%Reduced