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SEI INVESTMENTS CO

Location
OAKS, PA
Portfolio Value
Mega $109,131,738,351
Diversification
Diversified
Reports for
SEI INVESTMENTS MANAGEMENT CORP SEI TRUST CO SEI Investments Canada Co
Files via
ACADIAN ASSET MANAGEMENT LLC ALLIANCEBERNSTEIN L.P. AQR CAPITAL MANAGEMENT LLC Arcus Capital Partners, LLC ArrowMark Colorado Holdings LLC AXIOM INVESTORS LLC /DE Beutel, Goodman & Co Ltd. BRIGADE CAPITAL MANAGEMENT, LP
+ 50 more CAUSEWAY CAPITAL MANAGEMENT LLC Coho Partners, Ltd. Copeland Capital Management, LLC Fiera Capital Corp GREAT LAKES ADVISORS, LLC Hillsdale Investment Management Inc. INTECH INVESTMENT MANAGEMENT LLC J O HAMBRO CAPITAL MANAGEMENT LTD KETTLE HILL CAPITAL MANAGEMENT, LLC LMCG INVESTMENTS, LLC LSV ASSET MANAGEMENT Macquarie Investment Management LTD MANULIFE INVESTMENT MANAGEMENT (US) LLC MAR VISTA INVESTMENT PARTNERS LLC MARATHON ASSET MANAGEMENT LP MARTINGALE ASSET MANAGEMENT L P Neuberger Berman Group LLC GOLDMAN SACHS GROUP INC PACIFIC INVESTMENT MANAGEMENT CO LLC PANAGORA ASSET MANAGEMENT INC PARAMETRIC PORTFOLIO ASSOCIATES LLC Poplar Forest Capital LLC QS Investors, LLC Qtron Investments LLC RAMIUS ADVISORS LLC RWC Asset Management LLP SCHAFER CULLEN CAPITAL MANAGEMENT INC SSGA FUNDS MANAGEMENT INC WCM INVESTMENT MANAGEMENT, LLC Allspring Global Investments, LLC Stone Harbor Investment Partners LP Leeward Investments, LLC - MA Alphinity Investment Management Pty Ltd BARINGS LLC BAILLIE GIFFORD & CO Aikya Investment Management Ltd Benefit Street Partners LLC Blackcrane Capital, LLC BLACKROCK ADVISORS LLC BlackRock Institutional Trust Company, N.A. Fondsmaeglerselskabet Maj Invest A/S J.P. Morgan Investment Management Inc. Spectrum Asset Management, Inc. Skerryvore Asset Management Ltd Stratos Wealth Advisors, LLC Stratos Wealth Partners, LTD. Stratos Investment Management, LLC SEI-Eclipse Holding Company, LLC Brown Advisory LLC Diamond Hill Capital Management, LLC (Investment Advisor)
Filing Date
Global Rank
#92 / 8,807 ▼ 10
Top Industry
Semiconductors 12.8%
Period ended 4 months ago
Filed Aug 14, 2026 · 2mo
26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Unknown
SIC code
6211
Continues the 13F reports of
SEI TRUST CO from Dec 31, 2014

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style
Diversified active
Top 10 weight 26.0%, 103.9 effective positions, active share 35.8%; it meets none of the index-like, systematic-like or concentrated tests
Turnover
Low turnover
19.1% over the last four quarters (under 30%)
Horizon
Long horizon
Value-weighted holding period 23.4 quarters (12+), a floor since 80.0% of the book was already held when coverage starts

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share against every 13F filer's combined book at 20% or less, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

2,992 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
5.0%
+0.3 pts
Top 5
17.0%
+0.4 pts
Top 10
26.0%
+1.1 pts
HHI
96
Sep 2023 → Jun 2026 · range 61 – 107
Diversified+9

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 25.0% $27,329,943,155
Unclassified 18.8% $20,568,794,020
Industrials 10.7% $11,649,589,411
Financial Services 9.8% $10,739,345,967
Healthcare 8.0% $8,719,318,448
Consumer Cyclical 8.0% $8,718,150,853
Communication Services 6.2% $6,767,947,762
Real Estate 4.4% $4,810,970,610
Consumer Defensive 2.5% $2,706,469,138
Energy 2.4% $2,621,623,488
Basic Materials 2.4% $2,594,805,503
Utilities 1.7% $1,904,779,996

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
2,992 tracked positions · $109,131,738,351 total · filing declares 6,177 positions · $113,347,285,164 · as of Jun 30, 2026
Showing 1–50 of 2,992 positions by value · page 1 of 60
Ticker Company Shares Value (USD) % of Portfolio History

Showing the top 50 of 2,992 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.