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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, Q2 2025

Institutional positions in SEI Investments Co as of Jun 30, 2025. 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
564
+26 vs. Q1 2025
Shares held
90.1M
−3.55M (−3.8%) vs. Q1 2025
Total value
$8.09B
+$829.7M (+11.4%) vs. Q1 2025
New holders
105
184 more added
Sold out
79
197 more reduced

8 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: 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 holdersQ2 2025: 564 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 heldQ2 2025: $8.09B
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, Q2 2025

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q1 2025.

Institutions holding SEIC in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Hazlett, Burt & Watson, Inc.600$54.0K0.02%00.0%Unchanged
Whittier Trust Co620$55.7K0.00%00.0%Unchanged
Harbor Investment Advisory, LLC650$58.4K0.01%00.0%Unchanged
Toth Financial Advisory Corp666$59.8K0.01%00.0%Unchanged
Rialto Wealth Management, LLC676$60.7K0.02%+13+2.0%Added
BI Asset Management Fondsmaeglerselskab A/S740$66.0K0.00%−69,532−98.9%Reduced
WealthCollab, LLC766$68.8K0.04%+193+33.7%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.825$74.0K0.00%−467,502−99.8%Reduced
Painted Porch Advisors LLC827$74.3K0.03%−64−7.2%Reduced
Evolution Advisers, Inc.873$78.0K0.04%00.0%Unchanged
Private Trust Co NA873$78.4K0.01%−6−0.7%Reduced
Virtus ETF Advisers LLC900$80.9K0.05%−2,394−72.7%Reduced
Loring Wolcott & Coolidge Fiduciary Advisors LLP900$80.9K0.00%00.0%Unchanged
Employees Retirement System of Texas906$81.0K0.00%+906New
South State Corp.967$86.9K0.00%+37+4.0%Added
Northwestern Mutual Wealth Management Co1,033$92.8K0.00%−15−1.4%Reduced
Ronald Blue Trust, Inc.1,090$97.9K0.00%+49+4.7%Added
Versant Capital Management, Inc1,238$111.2K0.02%+695+128.0%Added
SRS Capital Advisors, Inc.967$114.4K0.01%−159−14.1%Reduced
Fifth Third Bancorp1,315$118.2K0.00%+141+12.0%Added
Steward Partners Investment Advisory, LLC1,415$127.2K0.00%+271+23.7%Added
Sachetta, LLC1,431$128.6K0.05%+9+0.6%Added
Global Retirement Partners, LLC1,458$131.0K0.00%+1,458New
EverSource Wealth Advisors, LLC1,499$134.7K0.01%+493+49.0%Added
Principal Securities, Inc.1,551$139.4K0.00%+227+17.1%Added
Hills Bank & Trust Co1,648$148.1K0.01%−65−3.8%Reduced
Harel Insurance Investments & Financial Services Ltd.1,699$153.0K0.00%00.0%Unchanged
IFP Advisors, Inc1,705$154.6K0.00%−231−11.9%Reduced
Farther Finance Advisors, LLC1,780$160.0K0.00%+446+33.4%Added
Covestor Ltd1,801$162.0K0.10%−141−7.3%Reduced
Hollencrest Capital Management1,900$170.7K0.01%+4+0.2%Added
Bryn Mawr Trust Co1,924$172.9K0.00%+27+1.4%Added
iA Global Asset Management Inc.1,943$175.0K0.00%+108+5.9%Added
Aster Capital Management (DIFC) Ltd2,114$190.0K0.04%−4,647−68.7%Reduced
Financiere des Professionnels - Fonds d,investissement inc.2,218$199.3K0.01%+2,218New
Genesis Private Wealth, LLC2,235$200.8K0.09%+2,235New
Claro Advisors LLC2,241$201.4K0.03%+2,241New
Meiji Yasuda Asset Management Co Ltd.2,269$203.9K0.01%−1,702−42.9%Reduced
Chicago Partners Investment Group LLC2,282$205.4K0.01%+2,282New
Paces Ferry Wealth Advisors, LLC2,300$206.7K0.09%+2,300New
Tower Research Capital LLC (TRC)2,302$206.9K0.01%−2,478−51.8%Reduced
HighPoint Advisor Group LLC2,313$207.8K0.01%+2,313New
EP Wealth Advisors, LLC2,336$209.9K0.00%+2,336New
Koshinski Asset Management, Inc.2,346$210.8K0.02%+2,346New
QRG Capital Management, Inc.2,349$211.1K0.00%+2,349New
Scientech Research LLC2,399$215.6K0.05%+2,399New
J. W. Coons Advisors, LLC2,430$218.4K0.05%+2,430New
Dorsey & Whitney Trust CO LLC2,497$224.4K0.01%+2,497New
RSM US Wealth Management LLC2,500$224.6K0.00%+2,500New
Pitcairn Co2,549$229.1K0.02%−660−20.6%Reduced
Hilltop Holdings Inc.2,595$233.2K0.01%−187−6.7%Reduced
TrueWealth Advisors, LLC2,640$237.2K0.07%00.0%Unchanged
Apriem Advisors2,648$237.9K0.03%+2,648New
Forum Financial Management, LP2,679$240.8K0.00%+2+0.1%Added
Everence Capital Management Inc2,730$245.0K0.02%+2,730New
Icon Wealth Advisors, LLC2,799$251.5K0.02%+405+16.9%Added
Signaturefd, LLC2,815$253.0K0.00%+55+2.0%Added
Change Path, LLC2,837$254.9K0.01%−1,313−31.6%Reduced
Syon Capital LLC2,840$255.2K0.02%+2,840New
Avantra Family Wealth, Inc.2,850$256.1K0.21%00.0%Unchanged
J.W. Cole Advisors, Inc.2,851$256.1K0.01%+2,851New
DRW Securities, LLC2,875$258.3K0.02%+2,875New
Leo Wealth, LLC2,886$259.3K0.02%+104+3.7%Added
Meeder Advisory Services, Inc.2,895$260.2K0.01%−33−1.1%Reduced
Modern Wealth Management, LLC2,911$261.6K0.01%+2,911New
Federation des caisses Desjardins du Quebec2,970$266.9K0.00%−3,991−57.3%Reduced
Institute for Wealth Management, LLC.2,982$268.0K0.03%+2,982New
NBT Bank N A3,062$275.2K0.02%+17+0.6%Added
Congress Wealth Management LLC3,120$280.4K0.00%+3,120New
Korea Investment CORP3,172$285.0K0.00%−111,512−97.2%Reduced
Royal Capital Wealth Management, LLC3,201$287.7K0.19%+10.0%Added
M&T Bank Corp3,217$289.1K0.00%+341+11.9%Added
Applied Finance Capital Management, LLC3,238$291.0K0.02%+3,238New
Longboard Asset Management, LP3,270$293.8K0.73%+35+1.1%Added
Hardy Reed LLC3,288$295.5K0.02%00.0%Unchanged
Mairs & Power Inc3,300$296.5K0.00%00.0%Unchanged
Gibbs Wealth Management3,419$307.2K0.06%+3,419New
Shelton Capital Management3,430$308.2K0.01%−99−2.8%Reduced
Farringdon Capital, Ltd.3,438$308.9K0.10%+3,438New
Par Capital Management Inc3,500$314.5K0.01%−4,000−53.3%Reduced
Private Advisor Group, LLC3,576$321.3K0.00%+3,576New
Y-Intercept (Hong Kong) Ltd3,585$322.1K0.01%+3,585New
EntryPoint Capital, LLC3,603$323.8K0.16%−487−11.9%Reduced
AE Wealth Management LLC3,677$330.5K0.00%−177−4.6%Reduced
Prudential PLC3,680$330.7K0.00%−2,429−39.8%Reduced
Morningstar Investment Management LLC3,706$333.0K0.03%+3,706New
Cullen Investment Group, Ltd.3,884$349.0K0.05%+22+0.6%Added
Lindenwold Advisors3,890$349.6K0.18%−18−0.5%Reduced
Citadel Investment Advisory, Inc.3,940$354.0K0.17%00.0%Unchanged
Kestra Advisory Services, LLC3,964$356.2K0.00%+9+0.2%Added
Bessemer Group Inc3,983$358.0K0.00%−301−7.0%Reduced
WBH Advisory Inc4,000$359.4K0.03%00.0%Unchanged
Carbahal Olsen Financial Services Group, LLC4,000$359.4K0.31%00.0%Unchanged
Cullen/Frost Bankers, Inc.4,002$359.6K0.00%+2,638+193.4%Added
Florida Financial Advisors, LLC4,041$363.1K0.12%−173−4.1%Reduced
Oxford Asset Management LLP4,048$363.8K0.12%+4,048New
Valley National Advisers Inc4,082$366.0K0.06%−129−3.1%Reduced
Fifth Third Wealth Advisors LLC4,083$366.9K0.02%−459−10.1%Reduced
Colony Group, LLC4,117$370.0K0.00%+4,117New
Public Employees Retirement Association of Colorado4,145$372.0K0.00%00.0%Unchanged