SEI INVESTMENTS CO — 13F Holdings & Portfolio
CIK 350894 · latest 13F-HR filed 2026-08-14
SEI INVESTMENTS CO manages $113.35B in 13F-reported U.S. long-equity assets across 6,177 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVDA (2.52%), GOOG (1.57%), VEA (1.55%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 232 new positions and exited 188; 1,340 existing positions rose in reported value and 1,351 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
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AUM
$113.35B
Long-equity book
Holdings
6,177
Distinct positions
Period
2026-06-30
Filed 2026-08-14
Q/Q Activity
+232 / −188 / ↑1340 / ↓1351
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Firm Profile & Key People
As of the firm’s regulatory filing dated Sep 1, 2026.
Assets Under Management
$216.43B
Discretionary
$211.99B
Employees
434
Accounts
112,627
This firm reports 4 disclosure items on its registration.
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| LANDIS, BRADLEY, SCOTT Control | BOARD MEMBER since Feb 2026 | Less than 5% | Individual |
| Peterson, Michael, Neil Control | SENIOR VICE PRESIDENT since Jun 2018 | Less than 5% | Individual |
| SIMC HOLDING, LLC Control | SHAREHOLDER since Dec 2003 | 75% or more | Domestic Entity |
| SIMKO, SEAN, PAUL Control | BOARD MEMBER since Feb 2026 | Less than 5% | Individual |
| Shetty, Nathan Control | PRESIDENT since Aug 2026 | Less than 5% | Individual |
| Warner, Mark, Andrew Control | TREASURER/CONTROLLER since Mar 2023 | Less than 5% | Individual |
| BARTO, TIMOTHY, DEAN | GENERAL COUNSEL since Dec 2003 | Less than 5% | Individual |
| CAMPISI, JENNIFER, HICKMAN | CHIEF COMPLIANCE OFFICER since Aug 2019 | Less than 5% | Individual |
| SEI INVESTMENTS COMPANY Control Indirect owner via SIMC HOLDING, LLC | MEMBER since Dec 2003 | 75% or more | Domestic Entity |
Ownership & leadership changes · 14 filings with changes since Mar 29, 2012
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
Aug 31, 2026 filing
- AddedShetty, Nathan · PRESIDENT · Less than 5% · control person
Feb 27, 2026 filing
- No longer listedKLAUDER, PAUL, FRANCIS · CHAIRMAN OF THE BOARD · Less than 5% · control person · listed since Feb 2024
- AddedLANDIS, BRADLEY, SCOTT · BOARD MEMBER · Less than 5% · control person
- AddedSIMKO, SEAN, PAUL · BOARD MEMBER · Less than 5% · control person
Dec 22, 2025 filing
- No longer listedCipriano, Jay, John · SENIOR VICE PRESIDENT · Less than 5% · control person · listed since May 2023
- No longer listedWOMACK, JAY, C · PRESIDENT · Less than 5% · control person · listed since Feb 2024
Mar 7, 2024 filing
- No longer listedWITHROW, WAYNE, MONTGOMERY · PRESIDENT · Less than 5% · control person · listed since Dec 2022
- AddedWOMACK, JAY, C · PRESIDENT · Less than 5% · control person
- ChangedKLAUDER, PAUL, FRANCIS · title SENIOR VICE PRESIDENT → CHAIRMAN OF THE BOARD
May 16, 2023 filing
- AddedCipriano, Jay, John · SENIOR VICE PRESIDENT · Less than 5% · control person
Mar 31, 2023 filing
- No longer listedHEILIG, KATHY, ANN · TREASURER/CONTROLLER · Less than 5% · control person · listed since May 1999
- AddedWarner, Mark, Andrew · TREASURER/CONTROLLER · Less than 5% · control person
Dec 20, 2022 filing
- No longer listedBARR, KEVIN, PATRICK · PRESIDENT · Less than 5% · control person · listed since Apr 2008
- ChangedWITHROW, WAYNE, MONTGOMERY · title SENIOR VICE PRESIDENT → PRESIDENT
Sep 23, 2019 filing
- No longer listedCAVANAGH, STEPHANIE, LAURA · INTERIM CCO · Less than 5% · listed since Feb 2019
- AddedCAMPISI, JENNIFER, HICKMAN · CHIEF COMPLIANCE OFFICER · Less than 5%
Mar 29, 2019 filing
- No longer listedUJOBAI, JOSEPH, PAUL · SENIOR VICE PRESIDENT · Less than 5% · control person · listed since Dec 2006
Feb 12, 2019 filing
- No longer listedSMOLENSKI, LAURA, KAY · CHIEF COMPLIANCE OFFICER · Less than 5% · listed since Apr 2012
- Listed againCAVANAGH, STEPHANIE, LAURA · INTERIM CCO · Less than 5%
Older changes (5 more filings)
Jun 18, 2018 filing
- No longer listedKLAUDER, NORMAN, JEFFREY · SENIOR VICE PRESIDENT · Less than 5% · control person · listed since Dec 2006
- AddedPeterson, Michael, Neil · SENIOR VICE PRESIDENT · Less than 5% · control person
May 30, 2018 filing
- No longer listedLOUGHLIN, EDWARD, DOYLE · SENIOR VICE PRESIDENT · Less than 5% · control person · listed since Jan 1995
Mar 30, 2016 filing
- AddedKLAUDER, PAUL, FRANCIS · SENIOR VICE PRESIDENT · Less than 5% · control person
Apr 1, 2013 filing
- No longer listedCAVANAGH, STEPHANIE, LAURA · CHIEF COMPLIANCE OFFICER · Less than 5% · listed since Mar 2008
- AddedSMOLENSKI, LAURA, KAY · CHIEF COMPLIANCE OFFICER · Less than 5%
Mar 29, 2012 filing (earliest on record)
- ListedBARR, KEVIN, PATRICK · PRESIDENT · Less than 5% · control person
- ListedBARTO, TIMOTHY, DEAN · GENERAL COUNSEL · Less than 5%
- ListedCAVANAGH, STEPHANIE, LAURA · CHIEF COMPLIANCE OFFICER · Less than 5%
- ListedHEILIG, KATHY, ANN · TREASURER/CONTROLLER · Less than 5% · control person
- ListedKLAUDER, NORMAN, JEFFREY · SENIOR VICE PRESIDENT · Less than 5% · control person
- ListedLOUGHLIN, EDWARD, DOYLE · SENIOR VICE PRESIDENT · Less than 5% · control person
- ListedSEI INVESTMENTS COMPANY · MEMBER · 75% or more · indirect via SIMC HOLDING, LLC · control person
- ListedSIMC HOLDING, LLC · SHAREHOLDER · 75% or more · control person
- ListedUJOBAI, JOSEPH, PAUL · SENIOR VICE PRESIDENT · Less than 5% · control person
- ListedWITHROW, WAYNE, MONTGOMERY · SENIOR VICE PRESIDENT · Less than 5% · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- MICRON TECHNOLOGY INC$720.6M +265.9%
- ADVANCED MICRO DEVICES INC$389.0M +109.6%
- ALPHABET INC$337.6M +20.1%
- NVIDIA CORPORATION$292.8M +7.7%
- SCHWAB STRATEGIC TR$227.3M +16.4%
Top Trims
- APPLE INC-$410.9M -14.4%
- MICROSOFT CORP-$385.8M -14.9%
- NETFLIX INC.-$337.9M -67.2%
- BOOKING HOLDINGS INC-$192.4M -54.7%
- INTUITIVE SURGICAL INC-$185.5M -63.5%
New Positions
- SPACE EXPLORATION TECHN CORP$165.0M
- CARNIVAL CORP LTD$146.5M
- ASCENDIS PHARMA A/S$63.4M
- HONEYWELL AEROSPACE INC$29.2M
- HONEYWELL INTL INC$29.0M
Exited Positions
- CARNIVAL CORP$148.5M
- HOLOGIC INC$90.3M
- ASCENDIS PHARMA A/S$80.3M
- HONEYWELL INTL INC$66.2M
- INTER & CO INC$36.3M
SEI INVESTMENTS CO Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 67066G104 | $2.85B | 2.52% | 16,451,497 | SH |
| 2 | ALPHABET INC | GOOG | 02079K107 | $1.78B | 1.57% | 5,027,160 | SH |
| 3 | VANGUARD TAX-MANAGED FDS | VEA | 921943858 | $1.76B | 1.55% | 24,670,917 | SH |
| 4 | APPLE INC | AAPL | 037833100 | $1.62B | 1.43% | 5,584,394 | SH |
| 5 | SCHWAB STRATEGIC TR | SCHG | 808524300 | $1.61B | 1.42% | 47,660,218 | SH |
| 6 | SCHWAB STRATEGIC TR | SCHV | 808524409 | $1.57B | 1.38% | 45,024,906 | SH |
| 7 | AMAZON COM INC | AMZN | 023135106 | $1.53B | 1.35% | 7,050,056 | SH |
| 8 | MICROSOFT CORP | MSFT | 594918104 | $1.50B | 1.33% | 4,032,957 | SH |
| 9 | VANGUARD BD INDEX FDS | BND | 921937835 | $1.47B | 1.30% | 20,078,691 | SH |
| 10 | BROADCOM INC | AVGO | 11135F101 | $1.35B | 1.19% | 3,567,210 | SH |
| 11 | ISHARES TR | IDEV | 46435G326 | $1.16B | 1.02% | 12,986,639 | SH |
| 12 | SCHWAB STRATEGIC TR | SCHX | 808524201 | $950.6M | 0.84% | 32,299,151 | SH |
| 13 | NVIDIA CORPORATION | NVDA | 67066G104 | $865.6M | 0.76% | 4,326,260 | SH |
| 14 | VANGUARD INDEX FDS | VTV | 922908744 | $852.7M | 0.75% | 3,912,536 | SH |
| 15 | ALPHABET INC | GOOGL | 02079K305 | $802.9M | 0.71% | 2,246,711 | SH |
| 16 | VANGUARD MUN BD FDS | VTEB | 922907746 | $801.3M | 0.71% | 15,843,041 | SH |
| 17 | VANGUARD INDEX FDS | VUG | 922908736 | $773.3M | 0.68% | 8,977,301 | SH |
| 18 | TAIWAN SEMICONDUCTOR MANUFAC | TSM | 874039100 | $752.4M | 0.66% | 1,575,405 | SH |
| 19 | META PLATFORMS INC | META | 30303M102 | $737.8M | 0.65% | 1,309,809 | SH |
| 20 | NUSHARES ETF TR | NXUS | 67092P672 | $723.7M | 0.64% | 28,874,659 | SH |
| 21 | SEI EXCHANGE TRADED FUNDS | SEIM | 81589A205 | $721.0M | 0.64% | 12,840,416 | SH |
| 22 | ISHARES INC | IEMG | 46434G103 | $712.5M | 0.63% | 8,601,057 | SH |
| 23 | ELI LILLY & CO | LLY | 532457108 | $706.9M | 0.62% | 589,336 | SH |
| 24 | SEI EXCHANGE TRADED FUNDS | SEIV | 81589A304 | $700.9M | 0.62% | 14,601,161 | SH |
| 25 | VANGUARD INTL EQUITY INDEX F | VWO | 922042858 | $673.0M | 0.59% | 11,274,358 | SH |
| 26 | VANGUARD CHARLOTTE FDS | BNDX | 92203J407 | $635.6M | 0.56% | 13,123,557 | SH |
| 27 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $620.4M | 0.55% | 1,068,048 | SH |
| 28 | MICRON TECHNOLOGY INC | MU | 595112103 | $589.2M | 0.52% | 510,419 | SH |
| 29 | WELLTOWER INC | WELL | 95040Q104 | $547.3M | 0.48% | 2,411,551 | SH |
| 30 | ISHARES TR | MUB | 464288414 | $545.1M | 0.48% | 5,065,381 | SH |
| 31 | APPLE INC | AAPL | 037833100 | $544.1M | 0.48% | 1,880,529 | SH |
| 32 | MICROSOFT CORP | MSFT | 594918104 | $503.0M | 0.44% | 1,348,467 | SH |
| 33 | SCHWAB STRATEGIC TR | SCHA | 808524607 | $502.5M | 0.44% | 13,908,960 | SH |
| 34 | SPDR SERIES TRUST | SPHY | 78468R606 | $495.1M | 0.44% | 21,122,846 | SH |
| 35 | AMAZON COM INC | AMZN | 023135106 | $469.5M | 0.41% | 1,969,893 | SH |
| 36 | ASML HLDG NV | ASML | N07059210 | $456.9M | 0.40% | 229,644 | SH |
| 37 | VISA INC | V | 92826C839 | $453.6M | 0.40% | 1,322,146 | SH |
| 38 | TESLA INC | TSLA | 88160R101 | $436.4M | 0.39% | 1,037,684 | SH |
| 39 | SCHWAB STRATEGIC TR | SCHO | 808524862 | $419.8M | 0.37% | 17,389,099 | SH |
| 40 | MASTERCARD INCORPORATED | MA | 57636Q104 | $419.3M | 0.37% | 816,363 | SH |
| 41 | ALPHABET INC | GOOGL | 02079K305 | $417.4M | 0.37% | 1,168,013 | SH |
| 42 | WOODWARD INC | WWD | 980745103 | $381.2M | 0.34% | 895,995 | SH |
| 43 | GE AEROSPACE | GE | 369604301 | $381.0M | 0.34% | 1,019,539 | SH |
| 44 | VANGUARD INDEX FDS | VBR | 922908611 | $368.2M | 0.32% | 1,515,431 | SH |
| 45 | SCHWAB STRATEGIC TR | SCHP | 808524870 | $362.2M | 0.32% | 13,667,827 | SH |
| 46 | VANGUARD INDEX FDS | VBK | 922908595 | $359.4M | 0.32% | 982,654 | SH |
| 47 | NVIDIA CORPORATION | NVDA | 67066G104 | $358.3M | 0.32% | 1,790,541 | SH |
| 48 | SEI EXCHANGE TRADED FUNDS | SEIQ | 81589A106 | $340.7M | 0.30% | 8,644,643 | SH |
| 49 | GE VERNOVA INC | GEV | 36828A101 | $337.9M | 0.30% | 287,648 | SH |
| 50 | ISHARES INC | ACWV | 464286525 | $330.1M | 0.29% | 2,745,969 | SH |
Filing History
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $113.35B | 6,177 | 0002048251-26-006553 |
| 2026-03-31 | 2026-05-13 | $108.45B | 6,108 | 0002048251-26-003739 |
| 2025-12-31 | 2026-02-13 | $101.31B | 6,077 | 0000350894-26-000005 |
| 2025-09-30 | 2025-11-13 | $92.99B | 5,633 | 0002048251-25-002343 |
Filer Information
Address
1 FREEDOM VALLEY DRIVEOAKS, PA 19456-1100
Phone
(610) 676-1000
Filing Manager
SEI INVESTMENTS CO
OAKS, PA
Signatory
Michael N. Peterson
Executive Vice President