SEI INVTS CO SEIC
COM · Common Stock · CUSIP 784117103 · ISIN US7841171033
Financial services company
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($40.2m this quarter). Holder counts are more reliable. Shares outstanding: 123.6m as of 2025-07-10, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $89.86. Options: 7 managers hold calls ($5.1m notional), 1 hold puts ($0).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 435 |
| Q4 2022 | 447 |
| Q1 2023 | 447 |
| Q2 2023 | 459 |
| Q3 2023 | 463 |
| Q4 2023 | 493 |
| Q1 2024 | 477 |
| Q2 2024 | 494 |
| Q3 2024 | 504 |
| Q4 2024 | 540 |
| Q1 2025 | 547 |
| Q2 2025 | 565 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 194 | 208 |
| Q4 2023 | 190 | 214 |
| Q1 2024 | 180 | 240 |
| Q2 2024 | 230 | 200 |
| Q3 2024 | 215 | 220 |
| Q4 2024 | 229 | 235 |
| Q1 2025 | 248 | 238 |
| Q2 2025 | 282 | 278 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $8.1m | $14.7m | 1.81 |
| Q4 2024 | $5.8m | $783.6k | 0.13 |
| Q1 2025 | $4.2m | $427.2k | 0.10 |
| Q2 2025 | $5.1m | $0 | 0.00 |
Biggest buyers
| ROYAL BANK OF CANADA | Added | +1.6m |
| LORD, ABBETT & CO. LLC | Added | +815.9k |
| JUPITER ASSET MANAGEMENT LTD | New | +417.2k |
| Azora Capital LP | Added | +406.3k |
| Caisse de depot et placement du Quebec | Added | +288.8k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +224.1k |
| GOLDMAN SACHS GROUP INC | Added | +204.2k |
| Swiss National Bank | New | +204.1k |
| CITADEL ADVISORS LLC | New | +202.6k |
| Qube Research & Technologies Ltd | Added | +181.6k |
Biggest sellers
| BlackRock, Inc. | Reduced | -2.2m |
| STATE STREET CORP | Reduced | -992.3k |
| Amundi | Reduced | -624.2k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | -467.5k |
| Aware Super Pty Ltd as trustee of Aware Super | Sold out | -363.1k |
| DANSKE BANK A/S | Reduced | -298.7k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | -292.0k |
| HSBC HOLDINGS PLC | Reduced | -284.0k |
| VANGUARD GROUP INC | Reduced | -231.6k |
| KBC Group NV | Reduced | -227.2k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $2.5m27.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.2m13.3k shares |
| WOLVERINE TRADING, LLC | New | $913.5k10.2k shares |
| JANE STREET GROUP, LLC | Reduced | $440.3k4.9k shares |
| GROUP ONE TRADING LLC | New | $44.9k500 shares |
| SIMPLEX TRADING, LLC | Reduced | $17.0k200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +1.1 pts · filed 2026-10-27 | 7.9% |
| LOOMIS SAYLES & CO L P 13G · exempt (held before listing) -0.1 pts · filed 2026-08-14 | 7.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 5 | $14.0m | — |
| Q4 2023 | 0 | — | 3 | $14.9m | — |
| Q1 2024 | 0 | — | 4 | $15.5m | — |
| Q2 2024 | 0 | — | 2 | $13.2m | — |
| Q3 2024 | 0 | — | 1 | $12.0m | — |
| Q4 2024 | 0 | — | 7 | $31.2m | — |
| Q1 2025 | 0 | — | 1 | $12.0m | — |
| Q2 2025 | 0 | — | 4 | $19.6m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-05-29 | WEST ALFRED P JR Executive Chairman, director | Sold | $5.6m66.1k shares |
| 2025-05-28 | WEST ALFRED P JR Executive Chairman, director | Sold | $6.4m75.0k shares |
| 2025-05-15 | Peterson Michael EXECUTIVE VICE PRESIDENT | Sold | $4.2m50.0k shares |
| 2025-05-14 | Hicke Ryan CHIEF EXECUTIVE OFFICER | Sold | $1.8m21.0k shares |
| 2025-05-14 | Sharma Sanjay Officer | Sold | $1.7m20.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.02% of their portfolio | 11.2m $1.0bn | Reduced -231.6k |
| BlackRock, Inc. 0.02% of their portfolio | 9.2m $826.9m | Reduced -2.2m |
| LOOMIS SAYLES & CO L P 1.00% of their portfolio | 8.8m $794.5m | Added +121.2k |
| MORGAN STANLEY 0.03% of their portfolio | 5.6m $506.3m | Reduced -161.6k |
| STATE STREET CORP 0.02% of their portfolio | 4.7m $426.4m | Reduced -992.3k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 3.2m $284.0m | Added +133.1k |
| Beutel, Goodman & Co Ltd. 1.33% of their portfolio | 2.6m $233.7m | Reduced -75.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 2.6m $231.5m | Reduced -111.5k |
| ROYAL BANK OF CANADA 0.02% of their portfolio | 2.2m $201.8m | Added +1.6m |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 1.8m $164.5m | Added +98.6k |
| FIRST TRUST ADVISORS LP 0.12% of their portfolio | 1.7m $155.2m | Added +144.8k |
| Invesco Ltd. 0.03% of their portfolio | 1.7m $149.4m | Reduced -40.3k |
| LORD, ABBETT & CO. LLC 0.43% of their portfolio | 1.5m $133.2m | Added +815.9k |
| Boston Trust Walden Corp 0.88% of their portfolio | 1.4m $123.1m | Added +44.2k |
| ROYCE & ASSOCIATES LP 1.13% of their portfolio | 1.2m $110.2m | Reduced -53.4k |
| Caisse de depot et placement du Quebec 0.20% of their portfolio | 1.0m $92.2m | Added +288.8k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 1.0m $91.7m | Reduced -112.6k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 914.5k $82.2m | Reduced -139.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.02% of their portfolio | 861.5k $77.4m | Added +60.4k |
| FMR LLC 0.00% of their portfolio | 838.1k $75.3m | Reduced -76.2k |
| Azora Capital LP 3.16% of their portfolio | 778.0k $69.9m | Added +406.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 666.6k $59.9m | Reduced -5.1k |
| NORGES BANK 0.01% of their portfolio | 619.7k $55.7m | Added +83.3k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 594.7k $53.4m | Added +96.6k |
| MILLENNIUM MANAGEMENT LLC 0.05% of their portfolio | 581.4k $52.2m | Reduced -202.2k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 545.4k $49.0m | Added +853 |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 542.6k $48.8m | Added +10.4k |
| NATIXIS ADVISORS, LLC 0.08% of their portfolio | 529.6k $47.6m | Reduced -8.8k |
| AMERICAN CAPITAL MANAGEMENT INC 1.73% of their portfolio | 463.8k $41.7m | Reduced -57.1k |
| ProShare Advisors LLC 0.08% of their portfolio | 452.2k $40.6m | Added +90.5k |
| Prana Capital Management, LP 1.44% of their portfolio | 442.3k $39.7m | Added +58.3k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 423.9k $38.1m | Added +204.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.05% of their portfolio | 421.9k $37.9m | Added +224.1k |
| Qube Research & Technologies Ltd 0.05% of their portfolio | 420.1k $37.7m | Added +181.6k |
| JUPITER ASSET MANAGEMENT LTD 0.31% of their portfolio | 417.2k $37.5m | New |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 392.5k $35.3m | Reduced -13.7k |
| UBS Group AG 0.01% of their portfolio | 381.1k $34.2m | Reduced -17.8k |
| JANE STREET GROUP, LLC 0.05% of their portfolio | 378.4k $34.0m | Added +136.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 372.0k $33.4m | Reduced -116.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 366.7k $33.0m | Added +92.8k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 356.0k $32.0m | Reduced -39.2k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 316.4k $28.4m | Reduced -20.2k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.09% of their portfolio | 285.7k $25.7m | Reduced -292.0k |
| ALPS ADVISORS INC 0.14% of their portfolio | 276.4k $24.8m | Reduced -1.9k |
| Retirement Systems of Alabama 0.09% of their portfolio | 274.6k $24.7m | Reduced -1.7k |
| JLB & ASSOCIATES INC 3.36% of their portfolio | 268.3k $24.1m | Reduced -8.3k |
| TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio | 249.4k $22.4m | Added +173.7k |
| Legal & General Group Plc 0.01% of their portfolio | 241.5k $21.7m | Reduced -160.7k |
| Nuveen, LLC 0.01% of their portfolio | 236.8k $21.3m | Reduced -39.0k |
| Interval Partners, LP 0.47% of their portfolio | 229.8k $20.6m | Reduced -22.4k |
| MARTINGALE ASSET MANAGEMENT L P 0.50% of their portfolio | 228.0k $20.5m | Reduced -3.6k |
| Man Group plc 0.04% of their portfolio | 223.0k $20.0m | Reduced -130.6k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 214.9k $19.3m | Reduced -16.1k |
| Swiss National Bank 0.01% of their portfolio | 204.1k $18.3m | New |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 202.6k $18.2m | New |
| Crestwood Advisors Group, LLC 0.32% of their portfolio | 201.2k $18.1m | Reduced -6.8k |
| Leith Wheeler Investment Counsel Ltd. 1.28% of their portfolio | 200.4k $18.0m | Reduced -5.4k |
| State of Alaska, Department of Revenue 0.19% of their portfolio | 198.7k $17.9m | Reduced -665 |
| Treasurer of the State of North Carolina 0.05% of their portfolio | 186.3k $16.7m | Added +98.8k |
| California Public Employees Retirement System 0.01% of their portfolio | 178.5k $16.0m | Added +19.2k |
| Vestcor Inc 0.47% of their portfolio | 174.5k $15.7m | Reduced -2.3k |
| Markel Group Inc. 0.13% of their portfolio | 173.2k $15.6m | Unchanged |
| Trexquant Investment LP 0.17% of their portfolio | 163.6k $14.7m | New |
| Amundi 0.01% of their portfolio | 157.9k $14.5m | Reduced -624.2k |
| KLP KAPITALFORVALTNING AS 0.06% of their portfolio | 155.5k $14.0m | Reduced -6.8k |
| Brandywine Global Investment Management, LLC 0.10% of their portfolio | 154.6k $13.9m | Added +77.9k |
| BARCLAYS PLC 0.01% of their portfolio | 154.1k $13.8m | Added +38.5k |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 153.5k $13.8m | Reduced -21.1k |
| Foyston, Gordon & Payne Inc 3.10% of their portfolio | 151.5k $13.6m | Added +9.7k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 145.6k $13.1m | New |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 145.0k $13.0m | Reduced -34.6k |
| Allianz Asset Management GmbH 0.02% of their portfolio | 143.9k $12.9m | Reduced -49.9k |
| Schonfeld Strategic Advisors LLC 0.10% of their portfolio | 143.7k $12.9m | Added +53.6k |
| OSAIC HOLDINGS, INC. 0.02% of their portfolio | 139.7k $12.5m | Added +9.4k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.05% of their portfolio | 138.3k $12.4m | Added +32.9k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.02% of their portfolio | 137.1k $12.3m | Reduced -5.3k |
| Janney Montgomery Scott LLC 0.03% of their portfolio | 135.5k $12.2m | Added +132.9k |
| VAN ECK ASSOCIATES CORP 0.01% of their portfolio | 135.2k $12.1m | Added +74.3k |
| Squarepoint Ops LLC 0.03% of their portfolio | 133.1k $12.0m | New |
| Bridgewater Associates, LP 0.05% of their portfolio | 129.6k $11.6m | Reduced -17.0k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 126.5k $11.4m | Reduced -855 |
| TD Asset Management Inc 0.01% of their portfolio | 125.7k $11.3m | Reduced -19.3k |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 123.1k $11.1m | Reduced -11.5k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 117.5k $10.6m | Reduced -468 |
| BANK OF NOVA SCOTIA 0.02% of their portfolio | 117.0k $10.5m | Added +113.1k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 116.2k $10.4m | Added +16.8k |
| Cubist Systematic Strategies, LLC 0.11% of their portfolio | 116.1k $10.4m | New |
| TRUIST FINANCIAL CORP 0.02% of their portfolio | 115.2k $10.3m | Reduced -489 |
| HAHN CAPITAL MANAGEMENT LLC 4.80% of their portfolio | 113.2k $10.2m | Reduced -1.8k |
| ABN AMRO INVESTMENT SOLUTIONS 0.19% of their portfolio | 107.8k $9.7m | Reduced -2.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 104.8k $9.4m | Reduced -27.2k |
| ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio | 104.7k $9.4m | Reduced -146.4k |
| Thrivent Financial for Lutherans 0.02% of their portfolio | 104.3k $9.4m | Reduced -27.1k |
| HRT FINANCIAL LP 0.05% of their portfolio | 103.0k $9.3m | New |
| Quantinno Capital Management LP 0.04% of their portfolio | 103.0k $9.3m | Added +57.1k |
| Susquehanna Portfolio Strategies, LLC 0.20% of their portfolio | 100.6k $9.0m | New |
| Rockefeller Capital Management L.P. 0.01% of their portfolio | 100.0k $9.0m | New |
| LPL Financial LLC 0.00% of their portfolio | 99.1k $8.9m | Added +5.6k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 95.7k $8.6m | Added +32.5k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.04% of their portfolio | 94.7k $8.5m | Reduced -222.9k |