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 ($13.0m this quarter). Holder counts are more reliable. Shares outstanding: 127.0m as of 2025-01-31, 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 ≈ $82.50. Options: 7 managers hold calls ($5.8m notional), 2 hold puts ($783.6k).
Trends to Q4 2024
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2023 | 181 | 211 |
| Q2 2023 | 195 | 206 |
| Q3 2023 | 194 | 208 |
| Q4 2023 | 190 | 214 |
| Q1 2024 | 180 | 240 |
| Q2 2024 | 230 | 200 |
| Q3 2024 | 215 | 220 |
| Q4 2024 | 229 | 235 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $8.2m | $560.6k | 0.07 |
| Q2 2024 | $9.9m | $13.8m | 1.40 |
| Q3 2024 | $8.1m | $14.7m | 1.81 |
| Q4 2024 | $5.8m | $783.6k | 0.13 |
Biggest buyers
| NORGES BANK | Added | +468.2k |
| FMR LLC | Added | +348.1k |
| LOS ANGELES CAPITAL MANAGEMENT LLC | New | +323.7k |
| Caisse de depot et placement du Quebec | Added | +277.3k |
| UBS Group AG | Added | +235.6k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Added | +215.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +209.8k |
| AMERICAN CAPITAL MANAGEMENT INC | Added | +192.8k |
| NORTHERN TRUST CORP | Added | +184.3k |
| MARTINGALE ASSET MANAGEMENT L P | Added | +128.0k |
Biggest sellers
| Beutel, Goodman & Co Ltd. | Reduced | -1.4m |
| JPMORGAN CHASE & CO | Reduced | -557.0k |
| CITADEL ADVISORS LLC | Reduced | -470.1k |
| FIRST TRUST ADVISORS LP | Reduced | -468.6k |
| LOOMIS SAYLES & CO L P | Reduced | -310.6k |
| Invesco Ltd. | Reduced | -302.0k |
| BROWN ADVISORY INC | Reduced | -237.7k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -231.6k |
| MORGAN STANLEY | Reduced | -221.3k |
| DEUTSCHE BANK AG\ | Reduced | -188.7k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $3.8m46.1k shares |
| Caption Management, LLC | New | $932.0k11.3k shares |
| PEAK6 LLC | First filing | $329.9k4.0k shares |
| SIMPLEX TRADING, LLC | New | $288.0k3.5k shares |
| JANE STREET GROUP, LLC | Reduced | $280.4k3.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $214.4k2.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $783.6k9.5k shares |
| 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 Q4 2024
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 |
|---|---|---|---|---|---|
| Q1 2023 | 0 | — | 3 | $13.6m | — |
| Q2 2023 | 0 | — | 2 | $12.0m | — |
| 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 | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-12-16 | WEST ALFRED P JR Executive Chairman, director | Sold | $4.4m52.0k shares |
| 2024-12-13 | WEST ALFRED P JR Executive Chairman, director | Sold | $8.1m94.2k shares |
| 2024-12-06 | WEST ALFRED P JR Executive Chairman, director | Sold | $504.0k6.0k shares |
| 2024-12-04 | WEST ALFRED P JR Executive Chairman, director | Sold | $1.6m19.0k shares |
| 2024-11-26 | DORAN WILLIAM Director | Sold | $409.0k5.0k shares |
| 2024-11-11 | WEST ALFRED P JR Executive Chairman, director | Sold | $573.7k7.1k shares |
| 2024-11-08 | WEST ALFRED P JR Executive Chairman, director | Sold | $8.0m100.0k shares |
| 2024-11-07 | WEST ALFRED P JR Executive Chairman, director | Sold | $2.4m30.0k shares |
| 2024-11-06 | Peterson Michael EXECUTIVE VICE PRESIDENT | Sold | $791.4k10.0k shares |
| 2024-11-06 | ROMEO CARMEN Director | Sold | $398.2k5.0k shares |
| 2024-10-28 | McCabe Philip EVP - Head of Investment Mgmt | Sold | $797.1k10.5k shares |
| 2024-10-28 | GUARINO CARL Director | Sold | $573.1k7.6k shares |
| 2024-10-25 | Peterson Michael EVP and General Counsel | Sold | $1.9m25.0k shares |
| 2024-10-25 | Hicke Ryan Chief Executive Officer, director | Sold | $749.0k10.0k 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, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.02% of their portfolio | 11.6m $956.8m | Added +9.5k |
| BlackRock, Inc. 0.02% of their portfolio | 11.5m $948.7m | Added +92.6k |
| LOOMIS SAYLES & CO L P 0.92% of their portfolio | 8.8m $728.9m | Reduced -310.6k |
| STATE STREET CORP 0.02% of their portfolio | 5.7m $471.5m | Reduced -25.3k |
| MORGAN STANLEY 0.03% of their portfolio | 5.6m $464.2m | Reduced -221.3k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 2.8m $234.8m | Reduced -187.2k |
| Beutel, Goodman & Co Ltd. 1.20% of their portfolio | 2.7m $219.7m | Reduced -1.4m |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 2.6m $212.6m | Added +60.3k |
| Invesco Ltd. 0.03% of their portfolio | 2.3m $186.0m | Reduced -302.0k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 1.6m $133.7m | Reduced -14.3k |
| ROYCE & ASSOCIATES LP 1.04% of their portfolio | 1.4m $111.9m | Reduced -108.2k |
| Boston Trust Walden Corp 0.76% of their portfolio | 1.3m $107.7m | Added +20.0k |
| FMR LLC 0.01% of their portfolio | 1.2m $101.7m | Added +348.1k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 1.2m $96.6m | Added +46.4k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 1.1m $88.1m | Added +184.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 756.0k $62.4m | Added +209.8k |
| CITADEL ADVISORS LLC 0.06% of their portfolio | 745.9k $61.5m | Reduced -470.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 668.3k $55.1m | Added +4.0k |
| NORGES BANK 0.01% of their portfolio | 582.1k $48.0m | Added +468.2k |
| BROWN ADVISORY INC 0.06% of their portfolio | 568.0k $46.9m | Reduced -237.7k |
| NATIXIS ADVISORS, LLC 0.08% of their portfolio | 548.6k $45.3m | Reduced -125.6k |
| Caisse de depot et placement du Quebec 0.09% of their portfolio | 532.3k $43.9m | Added +277.3k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 515.9k $42.5m | First filing |
| AMERICAN CAPITAL MANAGEMENT INC 1.53% of their portfolio | 497.2k $41.0m | Added +192.8k |
| FIRST TRUST ADVISORS LP 0.04% of their portfolio | 482.6k $39.8m | Reduced -468.6k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 475.8k $39.2m | Added +93.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 458.9k $37.8m | Reduced -557.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.13% of their portfolio | 458.2k $37.8m | Reduced -50.8k |
| ProShare Advisors LLC 0.09% of their portfolio | 451.4k $37.2m | Reduced -32.8k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 446.4k $36.8m | Added +125.9k |
| AQR CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 419.7k $34.6m | Reduced -5.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 406.6k $33.5m | Added +11.8k |
| Legal & General Group Plc 0.01% of their portfolio | 400.1k $33.0m | Added +15.4k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.08% of their portfolio | 389.3k $32.1m | Added +215.1k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 387.2k $31.9m | Added +40.6k |
| UBS Group AG 0.01% of their portfolio | 379.4k $31.3m | Added +235.6k |
| KBC Group NV 0.08% of their portfolio | 367.3k $30.3m | Added +1.5k |
| HSBC HOLDINGS PLC 0.02% of their portfolio | 363.8k $30.0m | Reduced -38.8k |
| ACADIAN ASSET MANAGEMENT LLC 0.08% of their portfolio | 350.7k $28.9m | Added +121.4k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 338.0k $27.9m | Reduced -1.4k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.11% of their portfolio | 323.7k $26.7m | New |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 303.1k $25.0m | Added +30.4k |
| Prana Capital Management, LP 1.18% of their portfolio | 299.0k $24.7m | Added +102.2k |
| Aware Super Pty Ltd as trustee of Aware Super 0.38% of their portfolio | 287.5k $23.7m | First filing |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 283.7k $23.4m | Added +30.5k |
| JLB & ASSOCIATES INC 3.15% of their portfolio | 281.2k $23.2m | Reduced -7.3k |
| Retirement Systems of Alabama 0.09% of their portfolio | 278.1k $22.9m | Reduced -795 |
| Qube Research & Technologies Ltd 0.04% of their portfolio | 271.5k $22.4m | Reduced -120.4k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.08% of their portfolio | 259.0k $21.4m | Added +105.9k |
| ALPS ADVISORS INC 0.13% of their portfolio | 253.8k $20.9m | Added +38.3k |
| Amundi 0.01% of their portfolio | 238.3k $19.4m | Reduced -26.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 234.1k $19.3m | Reduced -4.2k |
| DANSKE BANK A/S 0.06% of their portfolio | 230.9k $19.0m | Added +32.4k |
| MARTINGALE ASSET MANAGEMENT L P 0.46% of their portfolio | 230.7k $19.0m | Added +128.0k |
| Allianz Asset Management GmbH 0.03% of their portfolio | 230.5k $19.0m | Added +68.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 222.5k $18.4m | Reduced -121.8k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 221.3k $18.2m | Reduced -13.5k |
| Sumitomo Mitsui Trust Group, Inc. 0.01% of their portfolio | 219.5k $18.1m | Reduced -4.6k |
| Crestwood Advisors Group, LLC 0.32% of their portfolio | 209.0k $17.2m | Added +99.6k |
| Man Group plc 0.05% of their portfolio | 206.2k $17.0m | Added +10.2k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 203.8k $16.8m | Reduced -13.0k |
| Leith Wheeler Investment Counsel Ltd. 1.21% of their portfolio | 203.2k $16.8m | Reduced -7.3k |
| Interval Partners, LP 0.42% of their portfolio | 199.5k $16.5m | Reduced -41.8k |
| State of Alaska, Department of Revenue 0.18% of their portfolio | 199.2k $16.4m | Reduced -405 |
| Korea Investment CORP 0.04% of their portfolio | 189.5k $15.6m | Reduced -7.8k |
| Vestcor Inc 0.51% of their portfolio | 185.0k $15.3m | Reduced -3.2k |
| TWO SIGMA INVESTMENTS, LP 0.03% of their portfolio | 179.3k $14.8m | Added +22.7k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 178.4k $14.7m | Reduced -231.6k |
| Markel Group Inc. 0.13% of their portfolio | 173.2k $14.3m | Unchanged |
| Thrivent Financial for Lutherans 0.03% of their portfolio | 172.1k $14.2m | Reduced -38.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 169.1k $14.0m | Added +32.1k |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 164.0k $13.5m | Added +2.8k |
| KLP KAPITALFORVALTNING AS 0.06% of their portfolio | 162.3k $13.5m | First filing |
| California Public Employees Retirement System 0.01% of their portfolio | 160.1k $13.2m | Reduced -7.5k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 152.4k $12.6m | Reduced -188.7k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio | 146.2k $12.1m | Added +61.6k |
| BARCLAYS PLC 0.01% of their portfolio | 145.4k $12.0m | Reduced -20.6k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.02% of their portfolio | 142.4k $11.7m | Added +653 |
| TD Asset Management Inc 0.01% of their portfolio | 139.4k $11.5m | Reduced -39.7k |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 138.2k $11.4m | Reduced -11.5k |
| PRUDENTIAL FINANCIAL INC 0.02% of their portfolio | 137.2k $11.3m | Added +104.4k |
| PINEBRIDGE INVESTMENTS, L.P. 0.08% of their portfolio | 133.1k $11.0m | Reduced -9.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 130.6k $10.8m | Reduced -7.3k |
| Mitsubishi UFJ Trust & Banking Corp 0.02% of their portfolio | 128.6k $10.6m | Reduced -1.6k |
| HAHN CAPITAL MANAGEMENT LLC 4.59% of their portfolio | 126.9k $10.5m | Added +40.0k |
| OSAIC HOLDINGS, INC. 0.02% of their portfolio | 122.9k $10.1m | Added +2.0k |
| TRUIST FINANCIAL CORP 0.02% of their portfolio | 120.0k $9.9m | Reduced -1.0k |
| Foyston, Gordon & Payne Inc 2.62% of their portfolio | 119.7k $9.9m | Reduced -1.8k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 118.5k $9.8m | Reduced -7.4k |
| West Coast Financial LLC 1.07% of their portfolio | 118.1k $9.7m | Added +721 |
| Corebridge Financial, Inc. 0.05% of their portfolio | 110.9k $9.1m | Reduced -5.9k |
| UMB Bank, n.a. 0.14% of their portfolio | 110.3k $9.1m | Not comparable |
| Trexquant Investment LP 0.11% of their portfolio | 109.8k $9.1m | Added +87.3k |
| Vinva Investment Management Ltd 0.34% of their portfolio | 108.3k $9.0m | Added +59.2k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 106.9k $8.8m | Added +32.0k |
| Robeco Institutional Asset Management B.V. 0.02% of their portfolio | 101.1k $8.3m | Added +36.2k |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 99.7k $8.2m | Reduced -4.5k |
| CITIGROUP INC 0.01% of their portfolio | 93.1k $7.7m | Reduced -89.5k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 89.8k $7.4m | Added +51.1k |
| Weiss Asset Management LP 0.17% of their portfolio | 89.2k $7.4m | Not comparable |