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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 2025

Institutional positions in SEI Investments Co as of Mar 31, 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
546
+16 vs. Q4 2024
Shares held
93.7M
+2.84M (+3.1%) vs. Q4 2024
Total value
$7.27B
−$226.7M (−3.0%) vs. Q4 2024
New holders
68
192 more added
Sold out
52
186 more reduced

10 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2025: 546 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 2025: $7.27B
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 2025

Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q4 2024.

Institutions holding SEIC in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
First Horizon Advisors, Inc.803$62.3K0.00%+225+38.9%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP900$65.7K0.00%00.0%Unchanged
Evolution Advisers, Inc.873$67.0K0.04%00.0%Unchanged
Private Trust Co NA879$68.2K0.01%−17−1.9%Reduced
Painted Porch Advisors LLC891$69.2K0.03%−663−42.7%Reduced
South State Corp.930$72.2K0.00%−23−2.4%Reduced
Huntington National Bank934$72.5K0.00%−2,218−70.4%Reduced
Innovative Advisory Group, LLC1,000$77.6K0.07%00.0%Unchanged
EverSource Wealth Advisors, LLC1,006$78.1K0.00%+146+17.0%Added
Ronald Blue Trust, Inc.1,041$80.8K0.00%−112−9.7%Reduced
Northwestern Mutual Wealth Management Co1,048$81.4K0.00%−16−1.5%Reduced
SRS Capital Advisors, Inc.1,126$87.4K0.01%−494−30.5%Reduced
Steward Partners Investment Advisory, LLC1,144$88.8K0.00%+185+19.3%Added
Fifth Third Bancorp1,174$91.1K0.00%−32−2.7%Reduced
Siemens Fonds Invest GmbH1,259$97.7K0.01%+1,259New
Farther Finance Advisors, LLC1,334$103.1K0.00%+681+104.3%Added
Cullen/Frost Bankers, Inc.1,364$105.9K0.00%+1,282+1,563.4%Added
Principal Securities, Inc.1,324$109.2K0.00%00.0%Unchanged
Royal London Asset Management Ltd1,419$110.2K0.00%+1,419New
Sachetta, LLC1,422$110.4K0.05%+8+0.6%Added
Harel Insurance Investments & Financial Services Ltd.1,699$132.0K0.00%+1,699New
Hills Bank & Trust Co1,713$133.0K0.01%00.0%Unchanged
Coldstream Capital Management Inc1,748$135.7K0.00%+1,748New
Globeflex Capital L P1,800$139.7K0.01%00.0%Unchanged
iA Global Asset Management Inc.1,835$142.0K0.00%+202+12.4%Added
Hollencrest Capital Management1,896$147.2K0.01%00.0%Unchanged
Bryn Mawr Trust Co1,897$147.3K0.00%+122+6.9%Added
Covestor Ltd1,942$151.0K0.10%−191−9.0%Reduced
IFP Advisors, Inc1,936$157.8K0.00%+1,394+257.2%Added
Icon Wealth Advisors, LLC2,394$185.9K0.02%+172+7.7%Added
Baird Financial Group, Inc.2,589$201.0K0.00%+2,589New
Grant/GrossMendelsohn, LLC2,600$202.2K0.11%00.0%Unchanged
TrueWealth Advisors, LLC2,640$204.9K0.07%00.0%Unchanged
Janney Montgomery Scott LLC2,654$206.0K0.00%+2,654New
Forum Financial Management, LP2,677$207.8K0.00%+2,677New
Tokio Marine Asset Management Co Ltd2,685$208.4K0.01%+200+8.0%Added
Kestra Private Wealth Services, LLC2,747$213.3K0.00%+17+0.6%Added
Signaturefd, LLC2,760$214.3K0.00%−58−2.1%Reduced
Aigen Investment Management, LP2,781$215.9K0.03%+2,781New
Leo Wealth, LLC2,782$216.0K0.03%+10+0.4%Added
Hilltop Holdings Inc.2,782$216.0K0.01%−5−0.2%Reduced
Warren Averett Asset Management, LLC2,825$219.3K0.00%+2,825New
Avantra Family Wealth, Inc.2,850$221.2K0.21%00.0%Unchanged
Gallacher Capital Management LLC2,871$222.9K0.11%+2,871New
M&T Bank Corp2,876$223.3K0.00%−1,860−39.3%Reduced
Haven Private, LLC2,878$223.4K0.13%−3,283−53.3%Reduced
B. Metzler seel. Sohn & Co. AG2,882$223.7K0.00%00.0%Unchanged
Dark Forest Capital Management LP2,895$224.7K0.01%−4,669−61.7%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main2,913$226.1K0.00%+2,913New
Meeder Advisory Services, Inc.2,928$227.3K0.01%−194−6.2%Reduced
Keebeck Alpha, LP2,984$231.6K0.27%+2,984New
Rakuten Investment Management, Inc.3,023$233.1K0.00%+3,023New
NBT Bank N A3,045$236.4K0.02%+19+0.6%Added
Quadrature Capital Ltd3,138$243.6K0.01%+3,138New
Royal Capital Wealth Management, LLC3,200$248.4K0.17%00.0%Unchanged
Pitcairn Co3,209$249.1K0.02%−343−9.7%Reduced
Longboard Asset Management, LP3,235$251.1K0.74%00.0%Unchanged
Hardy Reed LLC3,288$255.2K0.02%00.0%Unchanged
Virtus ETF Advisers LLC3,294$255.7K0.17%+3,294New
Mairs & Power Inc3,300$256.2K0.00%00.0%Unchanged
Stonegate Investment Group, LLC3,381$262.5K0.01%−39−1.1%Reduced
Standard Life Aberdeen plc3,382$262.5K0.00%00.0%Unchanged
Shelton Capital Management3,529$274.0K0.01%−202−5.4%Reduced
Alliance Wealth Advisors, LLC3,647$283.1K0.07%+1,029+39.3%Added
Northstar Financial Companies, Inc.3,663$284.3K0.31%+22+0.6%Added
Impact Partnership Wealth, LLC3,682$285.8K0.06%+3,682New
Atria Wealth Solutions, Inc.3,697$287.0K0.00%+3,697New
AXA S.A.3,843$298.3K0.00%−612−13.7%Reduced
AE Wealth Management LLC3,854$299.2K0.00%+3,854New
Cullen Investment Group, Ltd.3,862$299.8K0.05%+21+0.5%Added
Bank of Nova Scotia3,878$301.0K0.00%−21,507−84.7%Reduced
Camden Capital, LLC3,896$302.4K0.03%−1,689−30.2%Reduced
Lindenwold Advisors3,908$303.4K0.17%−63−1.6%Reduced
Janus Henderson Group PLC3,947$304.2K0.00%00.0%Unchanged
Citadel Investment Advisory, Inc.3,940$306.0K0.15%00.0%Unchanged
Kestra Advisory Services, LLC3,955$307.0K0.00%+633+19.1%Added
Meiji Yasuda Asset Management Co Ltd.3,971$308.3K0.01%−70,150−94.6%Reduced
Cooper Financial Group3,990$309.8K0.04%+105+2.7%Added
WBH Advisory Inc4,000$310.5K0.03%00.0%Unchanged
Carbahal Olsen Financial Services Group, LLC4,000$310.5K0.29%00.0%Unchanged
Quadrant Capital Group LLC4,029$312.8K0.01%+2,563+174.8%Added
CAPROCK Group, Inc.4,070$316.0K0.01%−418−9.3%Reduced
EntryPoint Capital, LLC4,090$317.5K0.15%+4,090New
Public Employees Retirement Association of Colorado4,145$322.0K0.00%00.0%Unchanged
Change Path, LLC4,150$322.2K0.01%+1,222+41.7%Added
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management4,185$324.9K0.01%−1,004−19.3%Reduced
Valley National Advisers Inc4,211$326.0K0.06%−328−7.2%Reduced
Florida Financial Advisors, LLC4,214$327.1K0.13%−35−0.8%Reduced
Bessemer Group Inc4,284$332.0K0.00%+2,363+123.0%Added
Ethic Inc.4,370$337.7K0.01%−102−2.3%Reduced
S-Bank Fund Management Ltd4,491$348.6K0.07%+4,491New
Fifth Third Wealth Advisors LLC4,542$352.6K0.02%+886+24.2%Added
Ci Investments Inc.4,635$360.0K0.00%+455+10.9%Added
Legacy Financial Advisors, Inc.4,649$360.9K0.06%−3−0.1%Reduced
Maryland State Retirement & Pension System4,670$362.5K0.01%−1,103−19.1%Reduced
Tower Research Capital LLC (TRC)4,780$371.1K0.01%−1,686−26.1%Reduced
Snowden Capital Advisors LLC4,839$375.7K0.01%−46−0.9%Reduced
Kestra Investment Management, LLC4,841$375.8K0.01%+481+11.0%Added
Cadent Capital Advisors, LLC4,855$376.9K0.14%+698+16.8%Added
CIBC World Markets Corp4,986$387.1K0.00%−10−0.2%Reduced