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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, Q1 2023

Institutional positions in SEI Investments Co as of Mar 31, 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
444
+3 vs. Q4 2022
Shares held
92.9M
−484.0K (−0.5%) vs. Q4 2022
Total value
$5.36B
−$88.6M (−1.6%) vs. Q4 2022
New holders
41
140 more added
Sold out
38
176 more reduced

5 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2023: 444 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 2023: $5.36B
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 2023

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q4 2022.

Institutions holding SEIC in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
LPL Financial LLC43,564$2.51M0.00%−2,049−4.5%Reduced
Wells Fargo & Company44,118$2.54M0.00%−1,992−4.3%Reduced
Millennium Management LLC44,811$2.58M0.00%+44,811New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys45,925$2.64M0.02%−172−0.4%Reduced
SG Americas Securities, LLC46,004$2.65M0.04%+12,250+36.3%Added
Russell Investments Group, Ltd.46,624$2.68M0.01%−66,083−58.6%Reduced
Vontobel Holding Ltd.46,633$2.68M0.02%00.0%Unchanged
Vident Investment Advisory, LLC46,670$2.69M0.09%−2,056−4.2%Reduced
Asset Management One Co.,Ltd.47,202$2.72M0.01%−905−1.9%Reduced
AXA S.A.47,858$2.75M0.01%−20,008−29.5%Reduced
Voloridge Investment Management, LLC48,229$2.78M0.01%−130,331−73.0%Reduced
West Coast Financial LLC48,587$2.80M0.43%−417−0.9%Reduced
Swiss Life Asset Management Ltd49,131$2.83M0.04%+49,131New
Sepio Capital, LP49,668$2.86M0.26%−5,316−9.7%Reduced
Price T Rowe Associates Inc50,778$2.92M0.00%+1,461+3.0%Added
Alberta Investment Management Corp50,891$2.93M0.03%+50,891New
Taylor Hoffman Wealth Management53,185$3.06M1.68%−119−0.2%Reduced
Yousif Capital Management, LLC53,490$3.08M0.04%−870−1.6%Reduced
APG Asset Management N.V.58,216$3.08M0.01%+7,894+15.7%Added
Allianz Asset Management GmbH53,657$3.09M0.01%+2,335+4.5%Added
Ingalls & Snyder LLC53,900$3.10M0.16%−550−1.0%Reduced
State of New Jersey Common Pension Fund D54,850$3.16M0.01%−5,453−9.0%Reduced
Acadian Asset Management LLC56,093$3.22M0.01%+46,069+459.6%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund57,747$3.32M0.04%+16,500+40.0%Added
Davis R M Inc57,791$3.33M0.08%−13,720−19.2%Reduced
Bridgewater Associates, LP57,839$3.33M0.02%−21,897−27.5%Reduced
HBK Sorce Advisory LLC57,848$3.33M0.15%−57,926−50.0%Reduced
Aviva PLC58,333$3.36M0.02%+23,020+65.2%Added
The PNC Financial Services Group, Inc.58,682$3.38M0.00%−673−1.1%Reduced
Toronto Dominion Bank58,922$3.39M0.01%−4,609−7.3%Reduced
Union Heritage Capital, LLC59,050$3.40M2.06%00.0%Unchanged
Natixis59,500$3.42M0.03%−8,646−12.7%Reduced
Nisa Investment Advisors, LLC59,789$3.44M0.03%−11,415−16.0%Reduced
Voya Investment Management LLC60,245$3.47M0.00%+783+1.3%Added
Robeco Institutional Asset Management B.V.60,919$3.51M0.01%+2,134+3.6%Added
Treasurer of the State of North Carolina61,568$3.54M0.02%+982+1.6%Added
MetLife Investment Management62,541$3.60M0.03%−1,982−3.1%Reduced
UBS Group AG63,639$3.66M0.00%−55,162−46.4%Reduced
RK Asset Management, LLC64,694$3.72M3.68%−481−0.7%Reduced
Public Employees Retirement System of Ohio65,233$3.75M0.02%+4,947+8.2%Added
Ensign Peak Advisors, Inc66,889$3.85M0.01%−11,833−15.0%Reduced
Virginia Retirement Systems Et Al67,407$3.88M0.04%+67,407New
Storebrand Asset Management AS70,682$4.07M0.02%−3,093−4.2%Reduced
Alps Advisors Inc70,996$4.09M0.04%+7,822+12.4%Added
Court Place Advisors, LLC71,909$4.14M1.50%−4,394−5.8%Reduced
Amalgamated Bank73,211$4.21M0.04%−6,771−8.5%Reduced
BNP Paribas Arbitrage, SA73,627$4.24M0.01%+8,446+13.0%Added
Mitsubishi UFJ Trust & Banking Corp73,835$4.25M0.01%−734−1.0%Reduced
Meiji Yasuda Asset Management Co Ltd.76,697$4.41M0.23%−18,559−19.5%Reduced
Foyston, Gordon, & Payne Inc76,911$4.43M1.19%−1,415−1.8%Reduced
CWM, LLC77,957$4.49M0.03%−1,083−1.4%Reduced
Manufacturers Life Insurance Company, The80,522$4.63M0.00%−3,725−4.4%Reduced
Banco Santander, S.A.81,840$4.71M0.07%−11,210−12.0%Reduced
Mutual of America Capital Management LLC82,059$4.72M0.06%−2,131−2.5%Reduced
Southernsun Asset Management, LLC86,983$5.01M0.57%−724−0.8%Reduced
Brandywine Global Investment Management, LLC89,541$5.15M0.04%−4,259−4.5%Reduced
Andra AP-fonden89,700$5.16M0.13%+14,700+19.6%Added
Texas Permanent School Fund90,022$5.18M0.05%+21,133+30.7%Added
Thrive Wealth Management, LLC101,259$5.83M1.49%−2,558−2.5%Reduced
Twinbeech Capital LP101,577$5.85M0.12%+101,577New
Qube Research & Technologies Ltd112,413$6.47M0.04%−17,322−13.4%Reduced
Franklin Resources Inc115,852$6.67M0.00%−8,341−6.7%Reduced
RSM US Wealth Management LLC115,853$6.67M0.24%+530.0%Added
Vestcor Inc117,353$6.75M0.25%+114,619+4,192.4%Added
Parsec Financial Management, Inc.119,656$6.89M0.29%−6,176−4.9%Reduced
State of Wisconsin Investment Board121,151$6.97M0.02%+62,240+105.7%Added
Bank of Montreal125,267$7.22M0.00%+21,047+20.2%Added
Interval Partners, LP127,014$7.31M0.41%+117,315+1,209.6%Added
Hahn Capital Management LLC133,867$7.70M2.51%−25,283−15.9%Reduced
Pictet Asset Management SA134,161$7.72M0.01%+73,956+122.8%Added
New York State Teachers Retirement System134,887$7.76M0.02%−1,235−0.9%Reduced
Barclays PLC135,523$7.80M0.01%+42,382+45.5%Added
KBC Group NV143,950$8.28M0.04%−11,182−7.2%Reduced
Abn Amro Investment Solutions144,360$8.31M0.17%+144,360New
Credit Suisse AG145,933$8.40M0.01%−1,028−0.7%Reduced
State Board of Administration of Florida Retirement System151,227$8.70M0.02%+8,865+6.2%Added
Alliancebernstein L.P.153,806$8.85M0.00%−2,878−1.8%Reduced
American International Group, Inc.157,336$9.05M0.06%−2,258−1.4%Reduced
Truist Financial Corp169,942$9.78M0.02%−10,736−5.9%Reduced
California State Teachers Retirement System177,234$10.2M0.02%−2,503−1.4%Reduced
Schroder Investment Management Group185,468$10.7M0.02%+902+0.5%Added
Leith Wheeler Investment Counsel Ltd.190,215$10.9M1.61%+1,300+0.7%Added
Allspring Global Investments Holdings, LLC191,545$11.0M0.02%+177,855+1,299.2%Added
Jupiter Asset Management Ltd193,090$11.1M0.15%+193,090New
PGGM Investments196,295$11.3M0.19%−890−0.5%Reduced
California Public Employees Retirement System198,398$11.4M0.01%−42,489−17.6%Reduced
State of Alaska, Department of Revenue202,081$11.6M0.14%−245−0.1%Reduced
Victory Capital Management Inc202,186$11.6M0.01%−10,451−4.9%Reduced
Caisse de Depot Et Placement du Quebec204,431$11.8M0.03%+152,342+292.5%Added
TD Asset Management Inc206,321$11.9M0.01%−10,778−5.0%Reduced
FMR LLC213,405$12.3M0.00%−8,070−3.6%Reduced
Envestnet Asset Management Inc216,310$12.4M0.01%−1,090−0.5%Reduced
Crestwood Advisors Group LLC223,353$12.9M0.43%00.0%Unchanged
Citigroup Inc225,887$13.0M0.02%+15,985+7.6%Added
Man Group plc–$13.2M0.05%––
HSBC Holdings PLC232,317$13.4M0.02%−15,561−6.3%Reduced
Hendershot Investments Inc.239,200$13.8M2.31%−5,369−2.2%Reduced
New York State Common Retirement Fund255,262$14.7M0.02%−3,025−1.2%Reduced
Teacher Retirement System of Texas258,634$14.9M0.10%+48,042+22.8%Added
Goldman Sachs Group Inc268,934$15.5M0.00%−244,437−47.6%Reduced