SEICNasdaqSecurity Brokers, Dealers & Flotation CompaniesFiscal year ends December 31
SEI INVESTMENTS CO
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Jul 27, 2026
$104.79+0.39 (+0.37%)
Close on Oct 19, 2026
- Market cap
- $12.92B
- P/E (TTM)
- 18.5
- Dividend yield
- 0.96%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
75.4%
91M of 120M shares
Institutional holders
572
77 new, 60 sold out
Net institutional buying
1M
In Q2 2026
Insider trades, 12 months
0 buys · 38 sales
Net sold $50.09M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Mari Shimokawa | 9,153,983 | 7.05% | 13G (passive) amendment | Sep 30, 2024 |
| BlackRock, Inc. | 8,492,433 | 6.80% | 13G (passive) amendment | Jun 30, 2025 |
| Loomis, Sayles & Co., L.P. | 8,462,121 | 7.04% | 13G (passive) amendment | Jun 30, 2026 |
| Vanguard Portfolio Management | 6,138,027 | 5.02% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of SEIC | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,927,545 | 8.27% | $870.74M | −182,792 | 0.01% |
| Loomis Sayles & Co L P | 8,482,052 | 7.07% | $743.96M | −146,827 | 0.93% |
| Vanguard Portfolio Management LLC | 6,140,822 | 5.12% | $538.61M | +15,179 | 0.02% |
| Vanguard Capital Management LLC | 4,686,241 | 3.90% | $411.03M | −55,475 | 0.01% |
| State Street Corp | 4,251,584 | 3.54% | $372.91M | +66,406 | 0.01% |
| Morgan Stanley | 4,119,203 | 3.43% | $361.30M | −673,076 | 0.02% |
| Boston Partners | 3,093,791 | 2.58% | $271.42M | +1,323,752 | 0.24% |
| Geode Capital Management, LLC | 2,953,161 | 2.46% | $259.06M | +122,829 | 0.01% |
| Bank Of America Corp /De/ | 2,908,071 | 2.42% | $255.07M | −12,435 | 0.02% |
| FMR LLC | 2,510,218 | 2.09% | $220.17M | +417,719 | 0.01% |
| Lord, Abbett & Co. LLC | 2,309,004 | 1.92% | $202.52K | +104,625 | 0.58% |
| Dimensional Fund Advisors LP | 1,962,762 | 1.64% | $172.15M | +89,564 | 0.03% |
| First Trust Advisors LP | 1,501,972 | 1.25% | $131.74M | −320,697 | 0.08% |
| Beutel, Goodman & Co Ltd. | 1,494,684 | 1.25% | $131.10K | −278,470 | 0.96% |
| Invesco Ltd. | 1,110,829 | 0.93% | $97.43M | −34,575 | 0.01% |
| Royce & Associates LP | 1,050,287 | 0.88% | $92.12M | +53,831 | 0.74% |
| Caisse De Depot Et Placement Du Quebec | 1,002,445 | 0.84% | $87.92M | −195,644 | 0.13% |
| Boston Trust Walden Corp | 991,300 | 0.83% | $86.95M | −48,431 | 0.66% |
| Northern Trust Corp | 914,907 | 0.76% | $80.25M | +9,300 | 0.01% |
| Bank of New York Mellon Corp | 894,194 | 0.75% | $78.43M | −42,108 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 572 | 91M | 75.4% | 77 / 172 | 225 / 60 | 8M | 7M |
| Q1 2026 | 568 | 90M | 75.0% | 76 / 216 | 180 / 60 | 19M | 7M |
| Q4 2025 | 560 | 89M | 74.4% | 81 / 199 | 193 / 57 | 7M | 6M |
| Q3 2025 | 548 | 89M | 74.1% | 60 / 209 | 170 / 68 | 6M | 8M |
| Q2 2025 | 563 | 91M | 76.0% | 105 / 182 | 199 / 79 | 9M | 12M |
| Q1 2025 | 545 | 94M | 78.1% | 68 / 191 | 187 / 52 | 8M | 5M |
| Q4 2024 | 539 | 91M | 76.0% | 94 / 162 | 185 / 49 | 7M | 7M |
| Q3 2024 | 501 | 92M | 76.8% | 49 / 171 | 185 / 35 | 16M | 6M |
| Q2 2024 | 493 | 93M | 77.9% | 56 / 180 | 166 / 34 | 4M | 17M |
| Q1 2024 | 475 | 107M | 88.8% | 47 / 141 | 185 / 57 | 13M | 5M |
| Q4 2023 | 491 | 99M | 82.6% | 70 / 143 | 182 / 31 | 10M | 4M |
| Q3 2023 | 460 | 93M | 77.8% | 46 / 150 | 167 / 41 | 5M | 5M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of SEIC | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 3,435,336 | 2.86% | $301.31M | 0.01% | Jun 30, 2026 |
| iShares Core S&P Mid-Cap ETF | 3,128,188 | 2.61% | $274.37M | 0.22% | Jun 30, 2026 |
| Eaton Vance Atlanta Capital SMID-Cap Fund | 2,713,727 | 2.26% | $238.02M | 2.71% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 2,483,119 | 2.07% | $217.79M | 0.12% | Jun 30, 2026 |
| Loomis Sayles Growth Fund | 2,138,725 | 1.78% | $187.59M | 1.14% | Jun 30, 2026 |
| Disciplined Value Mid Cap Fund | 2,039,303 | 1.70% | $178.87M | 0.77% | Jun 30, 2026 |
| Vanguard Small-Cap Value Index Fund | 1,572,568 | 1.31% | $137.93M | 0.20% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 1,047,858 | 0.87% | $91.91M | 0.09% | Jun 30, 2026 |
| Lord Abbett Affiliated Fund Inc | 1,036,912 | 0.86% | $106.78M | 1.56% | Jul 31, 2026 |
| State Street(R) SPDR(R) S&P(R) Dividend ETF | 901,579 | 0.75% | $79.08M | 0.37% | Jun 30, 2026 |
| Fidelity Low-Priced Stock Fund | 892,010 | 0.74% | $91.86M | 0.37% | Jul 31, 2026 |
| First Trust SMID Cap Rising Dividend Achievers ETF | 824,763 | 0.69% | $72.34M | 0.64% | Jun 30, 2026 |
| Invesco S&P MidCap Quality ETF | 790,021 | 0.66% | $81.36M | 1.49% | Jul 31, 2026 |
| Strategic Advisers Fidelity U.S. Total Stock Fund | 531,064 | 0.44% | $46.67M | 0.02% | May 31, 2026 |
| Vanguard Dividend Appreciation Index Fund | 517,183 | 0.43% | $53.26M | 0.04% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Michael Lane | Executive Vice President | 39,911 | 0.03% | Sep 24, 2026 |
| Ryan Hicke | Chief Executive Officer | 207,983 | 0.17% | Sep 8, 2026 |
| Michael Peterson | Executive Vice President | 58,102 | 0.05% | Sep 1, 2026 |
| Philip McCabe | See Remarks | 62,666 | 0.05% | Aug 6, 2026 |
| Mark Andrew Warner | See Remarks* | 3,421 | 0.00% | Jul 30, 2026 |
| Sneha S. Shah | See Remarks* | 14,313 | 0.01% | Jul 28, 2026 |
| Sanjay Sharma | See Remarks* | 52,483 | 0.04% | Jul 28, 2026 |
| Sean Denham | Executive VP, CFO, COO | 58,365 | 0.05% | Mar 19, 2026 |
| Carmen Romeo | Director | 2,923,535 | 2.44% | Sep 3, 2026 |
| Kathryn McCarthy | Director | 87,883 | 0.07% | Aug 4, 2026 |
| Carl Guarino | Director | 18,708 | 0.02% | Jul 30, 2026 |
| William Doran | Director | 651,977 | 0.54% | Jun 11, 2026 |
| Jonathan Brassington | Director | 6,207 | 0.01% | Dec 16, 2025 |
| Karin A. Risi | Director | 4,342 | 0.00% | Dec 16, 2025 |
| Thomas C. Naratil | Director | 4,342 | 0.00% | Dec 16, 2025 |
| Stephanie D. Miller | Director | 3,941 | 0.00% | Dec 16, 2024 |
| Alfred P. West Jr | – | 16,026,026 | 13.35% | Jun 29, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Michael Lane Executive Vice President | Sep 22, 2026 | Sale | −2,400 | $102.78 | $246.67K | 39,581 |
| Ryan Hicke Chief Executive Officer | Sep 3, 2026 | Sale | −37,500 | $110.71 | $4.15M | 192,815 |
| Ryan Hicke Chief Executive Officer | Sep 3, 2026 | Option exercise | +17,500 | $48.47 | $848.23K | 210,315 |
| Ryan Hicke Chief Executive Officer | Sep 3, 2026 | Option exercise | +20,000 | $64.43 | $1.29M | 230,315 |
| Carmen Romeo Director | Sep 1, 2026 | Option exercise | +5,000 | $49.63 | $248.15K | 1,565,293 |
| Carmen Romeo Director | Sep 1, 2026 | Sale | −5,000 | $109.70 | $548.50K | 1,560,293 |
| Michael Peterson Executive Vice President | Aug 28, 2026 | Option exercise | +37,500 | $56.54 | $2.12M | 57,648 |
| Michael Peterson Executive Vice President | Aug 28, 2026 | Sale | −37,500 | $111.51 | $4.18M | 20,148 |
| Philip McCabe See Remarks | Aug 5, 2026 | Option exercise | +5,043 | $49.63 | $250.28K | 59,927 |
| Philip McCabe See Remarks | Aug 5, 2026 | Sale | −5,043 | $105.50 | $532.04K | 54,884 |
| Philip McCabe See Remarks | Aug 4, 2026 | Sale | −24,957 | $105.04 | $2.62M | 54,884 |
| Philip McCabe See Remarks | Aug 4, 2026 | Option exercise | +9,957 | $49.63 | $494.17K | 64,841 |
| Philip McCabe See Remarks | Aug 4, 2026 | Option exercise | +15,000 | $49.63 | $744.45K | 79,841 |
| Kathryn McCarthy Director | Aug 3, 2026 | Option exercise | +5,000 | $71.12 | $355.60K | 87,883 |
| Kathryn McCarthy Director | Aug 3, 2026 | Option exercise | +5,000 | $71.12 | $355.60K | 82,883 |
| Kathryn McCarthy Director | Aug 3, 2026 | Sale | −10,000 | $103.54 | $1.04M | 77,883 |
| Mark Andrew Warner See Remarks* | Jul 28, 2026 | Option exercise | +2,500 | $64.43 | $161.08K | 3,421 |
| Mark Andrew Warner See Remarks* | Jul 28, 2026 | Sale | −5,300 | $102.01 | $540.65K | 8,321 |
| Mark Andrew Warner See Remarks* | Jul 28, 2026 | Sale | −2,300 | $101.11 | $232.55K | 13,621 |
| Mark Andrew Warner See Remarks* | Jul 28, 2026 | Option exercise | +2,500 | $64.43 | $161.08K | 5,921 |
| Mark Andrew Warner See Remarks* | Jul 28, 2026 | Option exercise | +5,000 | $56.54 | $282.70K | 10,921 |
| Mark Andrew Warner See Remarks* | Jul 28, 2026 | Option exercise | +5,000 | $56.54 | $282.70K | 15,921 |
| Mark Andrew Warner See Remarks* | Jul 28, 2026 | Sale | −7,400 | $102.97 | $761.98K | 921 |
| Michael Peterson Executive Vice President | Jul 28, 2026 | Sale | −25,000 | $102.05 | $2.55M | 20,148 |
| Michael Peterson Executive Vice President | Jul 28, 2026 | Option exercise | +25,000 | $55.73 | $1.39M | 45,148 |
| Carl Guarino Director | Jul 28, 2026 | Sale | −10,000 | $103.20 | $1.03M | 18,308 |
| Carl Guarino Director | Jul 28, 2026 | Option exercise | +5,000 | $49.63 | $248.15K | 23,308 |
| Carl Guarino Director | Jul 28, 2026 | Option exercise | +5,000 | $49.63 | $248.15K | 28,308 |
| Sanjay Sharma See Remarks* | Jul 24, 2026 | Option exercise | +10,000 | $71.12 | $711.20K | 49,829 |
| Sanjay Sharma See Remarks* | Jul 24, 2026 | Sale | −20,000 | $99.33 | $1.99M | 39,829 |
| Sanjay Sharma See Remarks* | Jul 24, 2026 | Option exercise | +10,000 | $71.12 | $711.20K | 59,829 |
| Sneha S. Shah See Remarks* | Jul 24, 2026 | Tax withholding | −3,746 | $96.73 | $362.35K | 14,092 |
| Alfred P. West Jr – | Jun 29, 2026 | Sale | −5,652 | $87.18 | $492.74K | 6,820,131 |
| Alfred P. West Jr – | Jun 29, 2026 | Sale | −1,680 | $88.09 | $147.99K | 6,818,451 |
| Alfred P. West Jr – | Jun 26, 2026 | Sale | −3,838 | $87.67 | $336.48K | 6,825,783 |
| Alfred P. West Jr – | Jun 26, 2026 | Sale | −46,162 | $87.21 | $4.03M | 6,829,621 |
| William Doran Director | Jun 9, 2026 | Sale | −5,000 | $90.50 | $452.50K | 618,802 |
| Kathryn McCarthy Director | May 4, 2026 | Option exercise | +5,000 | $49.63 | $248.15K | 82,883 |
| Kathryn McCarthy Director | May 4, 2026 | Option exercise | +5,000 | $49.63 | $248.15K | 87,883 |
| Kathryn McCarthy Director | May 4, 2026 | Sale | −10,000 | $91.07 | $910.70K | 77,883 |
| Mark Andrew Warner In Remarks | Apr 28, 2026 | Sale | −4,000 | $91.16 | $364.64K | 921 |
| Mark Andrew Warner In Remarks | Apr 28, 2026 | Option exercise | +4,000 | $48.47 | $193.88K | 4,921 |
| Philip McCabe See Remarks | Apr 23, 2026 | Sale | −15,000 | $91.82 | $1.38M | 54,884 |
| Sanjay Sharma See Remarks* | Apr 23, 2026 | Option exercise | +12,500 | $49.63 | $620.38K | 64,829 |
| Sanjay Sharma See Remarks* | Apr 23, 2026 | Sale | −1,559 | $90.73 | $141.45K | 39,829 |
| Sanjay Sharma See Remarks* | Apr 23, 2026 | Sale | −23,441 | $90.08 | $2.11M | 41,388 |
| Sanjay Sharma See Remarks* | Apr 23, 2026 | Option exercise | +12,500 | $49.63 | $620.38K | 52,329 |
| Michael Peterson EXECUTIVE VICE PRESIDENT | Apr 23, 2026 | Sale | −10,000 | $90.00 | $900.00K | 20,148 |
| Michael Peterson EXECUTIVE VICE PRESIDENT | Apr 23, 2026 | Option exercise | +10,000 | $48.47 | $484.70K | 30,148 |
| Ryan Hicke CHIEF EXECUTIVE OFFICER, Director | Mar 31, 2026 | Tax withholding | −4,349 | $77.21 | $335.79K | 192,815 |
| Sean Denham Executive VP, CFO, COO | Mar 18, 2026 | Tax withholding | −7,673 | $78.77 | $604.40K | 57,758 |
| Alfred P. West Jr – | Mar 11, 2026 | Sale | −1,371 | $79.94 | $109.60K | 6,875,783 |
| Alfred P. West Jr – | Mar 11, 2026 | Sale | −6,076 | $79.11 | $480.67K | 6,877,154 |
| Alfred P. West Jr – | Mar 10, 2026 | Sale | −178 | $78.88 | $14.04K | 6,938,052 |
| Alfred P. West Jr – | Mar 10, 2026 | Sale | −25,391 | $79.97 | $2.03M | 6,912,661 |
| Alfred P. West Jr – | Mar 10, 2026 | Sale | −29,431 | $80.47 | $2.37M | 6,883,230 |
| Mark Andrew Warner – | Feb 25, 2026 | Award | +2,000 | $71.12 | $142.24K | 2,921 |
| Mark Andrew Warner – | Feb 25, 2026 | Sale | −4,000 | $81.74 | $326.96K | 921 |
| Mark Andrew Warner – | Feb 25, 2026 | Award | +2,000 | $71.12 | $142.24K | 4,921 |
| Ryan Hicke CHIEF EXECUTIVE OFFICER, Director | Jan 29, 2026 | Option exercise | +17,500 | $56.54 | $989.45K | 277,164 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Alfred P. West, Jr. Affiliate | Sep 29, 2026 | 35,000 | $3.67M | Sep 29, 2026 | Private Transaction |
| Michael Lane Officer | Sep 22, 2026 | 2,400 | $246.67K | Sep 22, 2026 | Restricted Stock Lapse |
| Ryan Hicke Officer, Director | Sep 3, 2026 | 37,500 | $4.15M | Sep 3, 2026 | Employee Stock Option Exercise |
| Carmen Romeo Director | Sep 1, 2026 | 5,000 | $548.50K | Sep 1, 2026 | Stock Option Exercise |
| Michael Peterson Officer | Aug 28, 2026 | 37,500 | $4.18M | Aug 28, 2026 | Employee Stock Option Exercise |
| Philip McCabe Officer | Aug 5, 2026 | 5,043 | $532.04K | Aug 5, 2026 | Employee Stock Option Exercise |
| Philip McCabe Officer | Aug 4, 2026 | 24,957 | $2.62M | Aug 4, 2026 | Employee Stock Option Exercise |
| Kathryn McCarthy Director | Aug 3, 2026 | 10,000 | $1.04M | Aug 3, 2026 | Employee Stock Option Exercise |
| Mark Andrew Warner Officer | Jul 28, 2026 | 15,000 | $1.54M | Jul 28, 2026 | Employee Stock Option Exercise |
| Carl Guarino Director | Jul 28, 2026 | 10,000 | $1.03M | Jul 28, 2026 | Employee Stock Option Exercise |
| Michael Peterson Officer | Jul 28, 2026 | 25,000 | $2.55M | Jul 28, 2026 | Employee Stock Option Exercise |
| Sanjay Sharma Officer | Jul 24, 2026 | 20,000 | $1.99M | Jul 24, 2026 | Employee Stock Option Exercise |
| Alfred P. West, Jr. Affiliate | Jun 26, 2026 | 59,000 | $5.19M | Jun 26, 2026 | Private Transaction |
| M. Doran William Director | Jun 9, 2026 | 5,000 | $452.50K | Jun 9, 2026 | Private Transaction |
| Kathryn McCarthy Director | May 4, 2026 | 10,000 | $910.75K | May 4, 2026 | Employee Stock Option Exercise |