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SEI INVESTMENTS CO

Institutional InvestorSimilar funds →SEC EDGAR: CIK 350894
Institutional-grade research for retail investors

Sector Allocation

  • Technology29.4%$33.4B
  • Other22.2%$25.1B
  • Financials9.5%$10.8B
  • Industrials8.8%$10.0B
  • Healthcare7.3%$8.3B
  • Consumer Discretionary6.8%$7.7B
  • Real Estate4.3%$4.8B
  • Materials3.1%$3.5B
  • Consumer Staples2.7%$3.1B
  • Energy2.5%$2.8B

AUM History

13fpro.ai/research/fund/sei-investments-co-350894

Conviction and streaks

Stable · top 10 = 18.5%

From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.

NVDA$NVDAConviction hold3.6% weight · held 7 quartersAAPL$AAPLConviction hold2.2% weight · held 7 quartersMSFT$MSFTConviction hold1.9% weight · held 7 quartersAMZN$AMZNConviction hold1.9% weight · held 7 quartersGOOG$GOOGConviction hold1.8% weight · held 7 quarters$Accumulating+36148% shares · 7 quarters runningAVTR$AVTRAccumulating+1069% shares · 7 quarters runningSARO$SAROAccumulating+6856% shares · 6 quarters runningSXT$SXTAccumulating+6213% shares · 6 quarters runningULS$ULSAccumulating+1554% shares · 6 quarters runningWBS$WBSTrimming-61% shares · 5 quarters runningDHI$DHITrimming-55% shares · 5 quarters runningDHR$DHRTrimming-80% shares · 5 quarters runningO$OTrimming-72% shares · 5 quarters runningMLM$MLMTrimming-58% shares · 5 quarters running

Largest positions — Q2 2026

  • NVDANVDA
    $4.1B
  • AAPLAAPL
    $2.4B
  • MSFTMSFT
    $2.2B
  • AMZNAMZN
    $2.1B
  • GOOGGOOG
    $2.0B
  • VANGUARD
    $1.8B
  • AVGOAVGO
    $1.7B
  • SCHWAB
    $1.6B
  • SCHWAB
    $1.6B
  • VANGUARD
    $1.5B
  • GOOGLGOOGL
    $1.4B
  • ISHARES
    $1.2B
  • METAMETA
    $1.0B
  • TSMTSM
    $1.0B
  • MUMU
    $991.5M
  • SCHWAB
    $950.6M
  • VANGUARD
    $852.7M
  • LLYLLY
    $827.4M
  • VANGUARD
    $801.3M
  • VANGUARD
    $773.3M

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/sei-investments-co-350894

SEI INVESTMENTS CO 13F holdings — Q2 2026

$113.3B portfolio (+4.5% QoQ) · 3,272 holdings · Q2 2026 13F · top 10 are 19% of the stock portfolio

All holdings — SEI INVESTMENTS CO (Q2 2026)

3,272 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated. The page lists up to 1,000; every position is in the Excel export.

Company
GOOGL$GOOGLAlphabet Inc.$1.4B-5%
— ISHARES TR - CORE MSCI INTLetf/fund$1.2B+4%
META$METAMeta Platforms, Inc.$1.0B-8%
TSM$TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTDadr$1.0B-18%
MU$MUMICRON TECHNOLOGY INC$991.5M+7%
— SCHWAB STRATEGIC TR - US LRG CAP ETFetf/fund$950.6M-0.7%
— VANGUARD INDEX FDS - VALUE ETFetf/fund$852.7M+2%
LLY$LLYELI LILLY & Co$827.4M-10%
— VANGUARD MUN BD FDS - TAX EXEMPT BDetf/fund$801.3M+12%
— VANGUARD INDEX FDS - GROWTH ETFetf/fund$773.3M+510%
— ISHARES INC - CORE MSCI EMKTetf/fund$764.6M+2%
AMD$AMDADVANCED MICRO DEVICES INC$743.9M-27%
— NUSHARES ETF TR - NUVEE AGGRE ETFetf/fund$723.7M+11%
— SEI EXCHANGE TRADED FUNDS - QIM US LARGE CAP$721.0M-5%
— SEI EXCHANGE TRADED FUNDS - QIM US LARGE VAL$700.9M-2%

What changed in Q2 2026

Against the previous quarter's 13F: 216 new, 1,007 added to, 1,885 trimmed, 162 sold out. Share-count changes; largest moves by dollar size first.

New positions (216)

  • SPCX$SPCXSPACE EXPLORATION TECHNOLOGIES CORP$165.0M

    first bought this quarter

  • HONA$HONAHoneywell Aerospace Inc.$29.2M

    first bought this quarter

  • J P MORGAN EXCHANGE TRADED F - ACTI HIGH YI ETF$21.3M

    first bought this quarter

  • BXDC$BXDCBlackstone Digital Infrastructure Trust Inc.$20.1M

    first bought this quarter

  • BAND$BANDBandwidth Inc.$14.4M

    first bought this quarter

  • FDXF$FDXFFedEx Freight Holding Company, Inc.$8.4M

    first bought this quarter

+210 more in the Excel export

Added to (1,007)

  • VANGUARD INDEX FDS - GROWTH ETF+510%

    now $773.3M

  • KLAC$KLACKLA CORP+931%

    now $281.5M · held 2+ qtrs

  • LITE$LITELumentum Holdings Inc.+427%

    now $209.1M · held 2+ qtrs

  • ANET$ANETArista Networks, Inc.+159%

    now $272.2M · held 2+ qtrs

  • NVDA$NVDANVIDIA CORP+4%

    now $4.1B · held 2+ qtrs

  • BKNG$BKNGBooking Holdings Inc.+971%

    now $159.6M · held 2+ qtrs

+1,001 more in the Excel export

Trimmed (1,885)

  • AAPL$AAPLApple Inc.-25%

    now $2.4B · held 2+ qtrs

  • MSFT$MSFTMICROSOFT CORP-16%

    now $2.2B · held 2+ qtrs

  • AMD$AMDADVANCED MICRO DEVICES INC-27%

    now $743.9M · held 2+ qtrs

  • SNOW$SNOWSnowflake Inc.-74%

    now $86.7M

  • AMZN$AMZNAMAZON COM INC-10%

    now $2.1B · held 2+ qtrs

  • AVGO$AVGOBroadcom Inc.-12%

    now $1.7B · held 2+ qtrs

+1,879 more in the Excel export

Sold out (162)

  • HOLX$HOLXHOLOGIC INCwas $90.3M

    held 6+ qtrs

  • INTR$INTRInter & Co, Inc.was $36.3M

    held 6+ qtrs

  • MRX$MRXMarex Group Ltdwas $15.8M
  • CTRA$CTRACoterra Energy Inc.was $14.7M
  • CUK$CUKCARNIVAL PLCwas $6.8M
  • TPH$TPHTri Pointe Homes, Inc.was $4.5M

+156 more in the Excel export

Share

Holdings by quarter

Every 13F SEI INVESTMENTS CO has filed, 38 earlier quarters. Pick one to see what it held then.

Email me the moment this fund files its next 13FPro

Is it too late to follow SEI INVESTMENTS?

Q2 2026 13F filed with the SEC on Aug 14, 2026. Prices are closing prices as of Oct 26, 2026.

Average quality of SEI INVESTMENTS's top 20 holdings: 79/100 (our AI quality score, weighted by position size; 18 of the 20 are scored)

Top 10 since filing

-2.0%

Value-weighted move of the 10 largest stock positions

Turnover

6%

Last quarter

Top 10 weight

19%

Share of the stock portfolio in its 10 largest positions

Held 4+ quarters

0%

Share of portfolio value in positions held a year or more

Highest-quality names it owns(among its 100 largest positions)

The 8 highest-scoring companies in this portfolio are a Pro feature.

How these are measured
  • Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
  • Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
  • Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2026 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
  • Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
  • Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.

Portfolio Overview

SEI INVESTMENTS CO disclosed 3,272 positions worth $113.3B in its Form 13F-HR for Q2 2026, led by $NVDA (NVIDIA CORP) at 3.6% of the equity portfolio, followed by $AAPL and $MSFT. During the quarter the fund opened 216 new positions and exited 162 — including a new stake in $SPCX and a full exit from $HOLX. The portfolio is most concentrated in Technology (29.4% of disclosed assets). All figures are sourced directly from SEI INVESTMENTS CO’s Form 13F-HR filing with the SEC under CIK 350894.

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AI-Powered Hedge Fund Analysis: SEI INVESTMENTS CO

13F Pro is an AI hedge fund tracker and stock research platform. For SEI INVESTMENTS CO (SEC CIK: 350894), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in SEI INVESTMENTS CO's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.