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Livermore
Livermore
ZHEN

SEI Investments Co

SEC CIK
0000350894
Latest filing
Aug 14, 2026

The latest 13F from SEI Investments Co covers Q2 2026 (filed Aug 14, 2026): 3,272 long positions worth $113.3B. The top 10 holdings make up 18.5% of the portfolio, and the largest is NVIDIA Corp (NVDA) at 3.6%. Livermore has 23 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
225
Est. +$432.5M
Added
1002
Est. +$5.36B
Reduced
1888
Est. −$14.3B
Sold out
181
Est. −$344.3M

Top 5 holdings

Share of this quarter's portfolio value

  1. NVDANVIDIA Corp
    3.6%$4.07BHistory
  2. AAPLApple Inc.
    2.2%$2.44BHistory
  3. MSFTMicrosoft Corp
    1.9%$2.21BHistory
  4. AMZNAmazon Com Inc
    1.9%$2.10BHistory
  5. GOOGAlphabet Inc.
    1.8%$2.02BHistory

Biggest buys

New and added positions, by estimated amount bought

  1. LITELumentum Holdings Inc.
    +$169.4MAddedHistory
  2. ANETArista Networks, Inc.
    +$167.1MAddedHistory
  3. SPCXSpace Exploration Technologies Corp
    +$165.0MNewHistory
  4. NVDANVIDIA Corp
    +$159.5MAddedHistory
  5. AFRMAffirm Holdings, Inc.
    +$121.1MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. MUMicron Technology Inc
    +0.62 pp0.2% → 0.9%History
  2. SNDKSandisk Corp
    +0.19 pp<0.1% → 0.2%History
  3. ANETArista Networks, Inc.
    +0.17 pp0.1% → 0.2%History
  4. LITELumentum Holdings Inc.
    +0.15 pp<0.1% → 0.2%History
  5. SPCXSpace Exploration Technologies Corp
    +0.15 pp0.0% → 0.1%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. AAPLApple Inc.
    −$811.1MReducedHistory
  2. MSFTMicrosoft Corp
    −$405.8MReducedHistory
  3. AMDAdvanced Micro Devices Inc
    −$269.5MReducedHistory
  4. SNOWSnowflake Inc.
    −$250.6MReducedHistory
  5. AMZNAmazon Com Inc
    −$233.0MReducedHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. AAPLApple Inc.
    −0.48 pp2.6% → 2.2%History
  2. MSFTMicrosoft Corp
    −0.44 pp2.4% → 1.9%History
  3. NFLXNetflix Inc
    −0.32 pp0.5% → 0.1%History
  4. BKNGBooking Holdings Inc.
    −0.18 pp0.3% → 0.1%History
  5. ISRGIntuitive Surgical Inc
    −0.18 pp0.3% → 0.1%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$113.3B
+$4.90B (+4.5%) vs. prior quarter
Positions
3,272
+44 vs. prior quarter
Top 10 concentration
18.5%
Top 10 as share of value
Turnover
5.2%
Q2 2026, one quarter
Average holding period
19.9 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $113.3B (Q2 2026)

Q1 2021: $39.7BQ2 2021: $45.1BQ3 2021: $47.7BQ4 2021: $53.3BQ1 2022: $49.8BQ2 2022: $46.3BQ3 2022: $44.8BQ4 2022: $45.0BQ1 2023: $53.8BQ2 2023: $57.3BQ3 2023: $55.7BQ4 2023: $62.3BQ1 2024: $68.2BQ2 2024: $70.6BQ3 2024: $77.0BQ4 2024: $77.9BQ1 2025: $77.7BQ2 2025: $86.3BQ3 2025: $93.0BQ4 2025: $101.3BQ1 2026: $108.4BQ2 2026: $113.3B
Q1 2021Q2 2026
13F filings of SEI Investments Co by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 20263,272$113.3BNVDAAAPLMSFTvs. Q1 2026SEC
Q1 2026May 13, 20263,228$108.4BNVDAAAPLMSFTvs. Q4 2025SEC
Q4 2025Feb 13, 20263,118$101.3BNVDAMSFTAAPLvs. Q3 2025SEC
Q3 2025Nov 13, 20252,814$93.0BNVDAMSFTAAPLvs. Q2 2025SEC
Q2 2025Aug 14, 20252,783$86.3BMSFTNVDAAMZNvs. Q1 2025SEC
Q1 2025May 14, 2025Amended2,757$77.7BMSFTNVDAAAPLvs. Q4 2024SEC
Q4 2024Feb 11, 20252,721$77.9BMSFTNVDAAAPLvs. Q3 2024SEC
Q3 2024Nov 12, 20242,675$77.0BMSFTNVDAAAPLvs. Q2 2024SEC
Q2 2024Aug 13, 20242,653$70.6BMSFTNVDAAMZNvs. Q1 2024SEC
Q1 2024May 7, 20242,616$68.2BMSFTAMZNVanguard Ftse Developed Markets ETFvs. Q4 2023SEC
Q4 2023Feb 14, 20242,605$62.3BMSFTVanguard Ftse Developed Markets ETFSchwab U.S. Large-Cap ETFvs. Q3 2023SEC
Q3 2023Nov 14, 20232,615$55.7BMSFTVanguard Ftse Developed Markets ETFSchwab U.S. Large-Cap ETFvs. Q2 2023SEC
Q2 2023Aug 11, 20232,665$57.3BMSFTSchwab U.S. Large-Cap ETFVanguard Ftse Developed Markets ETFvs. Q1 2023SEC
Q1 2023May 12, 20232,677$53.8BVanguard Total Bond Market ETFSchwab U.S. Large-Cap ETFVanguard Ftse Developed Markets ETFvs. Q4 2022SEC
Q4 2022Feb 10, 20232,513$45.0BVanguard Total Bond Market ETFVanguard Ftse Developed Markets ETFSchwab U.S. Large-Cap ETFvs. Q3 2022SEC
Q3 2022Nov 14, 20222,648$44.8BVanguard Total Bond Market ETFSchwab U.S. Large-Cap ETFVanguard Ftse Developed Markets ETFvs. Q2 2022SEC
Q2 2022Aug 15, 20222,641$46.3BVanguard Total Bond Market ETFSchwab U.S. Large-Cap ETFVanguard Ftse Developed Markets ETFvs. Q1 2022SEC
Q1 2022May 13, 20222,569$49.8BVanguard Total Bond Market ETFSchwab U.S. Large-Cap ETFVanguard Ftse Developed Markets ETFvs. Q4 2021SEC
Q4 2021Feb 14, 20222,586$53.3BSchwab U.S. Large-Cap ETFVanguard Total Bond Market ETFVanguard Ftse Developed Markets ETFvs. Q3 2021SEC
Q3 2021Nov 12, 20212,540$47.7BSchwab U.S. Large-Cap ETFVanguard Total Bond Market ETFVanguard Ftse Developed Markets ETFvs. Q2 2021SEC
Q2 2021Aug 6, 20212,532$45.1BSchwab U.S. Large-Cap ETFVanguard Total Bond Market ETFVanguard Ftse Developed Markets ETFvs. Q1 2021SEC
Q1 2021May 12, 20212,464$39.7BSchwab U.S. Large-Cap ETFVanguard Ftse Developed Markets ETFVanguard Total Bond Market ETF–SEC

13D and 13G filings

Companies where SEI Investments Co reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

1 company, largest stake first.

Companies where SEI Investments Co owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
Core University Living Real Estate Income TrustCommon Stock13G30.42%4.00M sharesNewAug 7, 20261 filingAug 7, 2026SEC

Latest filings

1 filing on file made by SEI Investments Co or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by SEI Investments Co
CompanyFiled (ET)FormStakeChangeEvent dateFiling
Core University Living Real Estate Income TrustCommon StockAug 7, 20261:56 PM ET13G30.42%4.00M sharesNewJul 31, 2026SEC