SEI INVESTMENTS CO
Total Trades
103
Buys
0
Sells
62
Largest Trade
N/A
Insiders
16
Institutional Funds
486
Inst. Value
$1M+
Activist Filings
16
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Warner Mark Andrew | Insider | SELL | $100K–$500K | 4K | $81.74 | Feb 26, 2026 |
| Warner Mark Andrew | Insider | GRANT | $100K–$500K | 4K | $71.12 | Feb 26, 2026 |
| Hicke Ryan | CHIEF EXECUTIVE OF… | SELL | $1M+ | 80K | $87.36 | Feb 2, 2026 |
| Hicke Ryan | CHIEF EXECUTIVE OF… | EXERCISE | $1M+ | 80K | $61.30 | Feb 2, 2026 |
| DORAN WILLIAM | Director | SELL | $500K+ | 7K | $83.85 | Dec 23, 2025 |
| McCabe Philip | See Remarks | EXERCISE | $500K+ | 12K | $53.34 | Dec 8, 2025 |
| McCabe Philip | See Remarks | SELL | $500K+ | 12K | $81.11 | Dec 8, 2025 |
| WEST ALFRED P JR | Executive Chairman | SELL | $1M+ | 25K | $80.87 | Dec 5, 2025 |
| WEST ALFRED P JR | Executive Chairman | EXERCISE | $1M+ | 30K | $53.34 | Dec 5, 2025 |
| Peterson Michael | EXECUTIVE VICE PRE… | SELL | $1M+ | 25K | $84.21 | Nov 13, 2025 |
| Peterson Michael | EXECUTIVE VICE PRE… | EXERCISE | $1M+ | 25K | $54.34 | Nov 13, 2025 |
| ROMEO CARMEN | Director | SELL | $100K–$500K | 5K | $84.01 | Nov 12, 2025 |
| ROMEO CARMEN | Director | EXERCISE | $100K–$500K | 5K | $53.34 | Nov 12, 2025 |
| MCCARTHY KATHRYN | Director | EXERCISE | $500K+ | 10K | $53.34 | Sep 29, 2025 |
| MCCARTHY KATHRYN | Director | SELL | $500K+ | 10K | $85.66 | Sep 29, 2025 |
| GUARINO CARL | Director | EXERCISE | $500K+ | 10K | $53.34 | Sep 24, 2025 |
| GUARINO CARL | Director | SELL | $500K+ | 10K | $86.41 | Sep 24, 2025 |
| Warner Mark Andrew | Insider | EXERCISE | $100K–$500K | 5K | $49.63 | Jul 30, 2025 |
| Warner Mark Andrew | Insider | SELL | $100K–$500K | 5K | $88.75 | Jul 30, 2025 |
| WEST ALFRED P JR | Executive Chairman | SELL | $1M+ | 141K | $85.08 | May 30, 2025 |
| Hicke Ryan | CHIEF EXECUTIVE OF… | EXERCISE | $1M+ | 24K | $53.34 | May 16, 2025 |
| Hicke Ryan | CHIEF EXECUTIVE OF… | SELL | $1M+ | 21K | $83.36 | May 16, 2025 |
| Peterson Michael | EXECUTIVE VICE PRE… | EXERCISE | $1M+ | 50K | $57.52 | May 16, 2025 |
| Peterson Michael | EXECUTIVE VICE PRE… | SELL | $1M+ | 50K | $84.27 | May 16, 2025 |
| Sharma Sanjay | See Remarks* | SELL | $1M+ | 20K | $83.40 | May 16, 2025 |
| Sharma Sanjay | See Remarks* | EXERCISE | $1M+ | 20K | $53.34 | May 16, 2025 |
| DORAN WILLIAM | Director | SELL | $100K–$500K | 5K | $81.80 | Nov 27, 2024 |
| WEST ALFRED P JR | Executive Chairman | SELL | $1M+ | 137K | $80.28 | Nov 12, 2024 |
| ROMEO CARMEN | Director | SELL | $100K–$500K | 5K | $79.64 | Nov 8, 2024 |
| ROMEO CARMEN | Director | EXERCISE | $100K–$500K | 5K | $40.64 | Nov 8, 2024 |
| Peterson Michael | EXECUTIVE VICE PRE… | EXERCISE | $500K+ | 10K | $64.43 | Nov 8, 2024 |
| Peterson Michael | EXECUTIVE VICE PRE… | SELL | $500K+ | 10K | $79.14 | Nov 8, 2024 |
| Hicke Ryan | CEO | EXERCISE | $100K–$500K | 10K | $40.64 | Oct 29, 2024 |
| Hicke Ryan | CEO | SELL | $500K+ | 10K | $74.90 | Oct 29, 2024 |
| Peterson Michael | EVP and General Co… | SELL | $1M+ | 25K | $74.59 | Oct 29, 2024 |
| Peterson Michael | EVP and General Co… | EXERCISE | $1M+ | 25K | $55.73 | Oct 29, 2024 |
| GUARINO CARL | Director | EXERCISE | $100K–$500K | 10K | $40.64 | Oct 29, 2024 |
| GUARINO CARL | Director | SELL | $500K+ | 8K | $75.77 | Oct 29, 2024 |
| McCabe Philip | EVP - Head of Inve… | EXERCISE | $100K–$500K | 11K | $40.64 | Oct 29, 2024 |
| McCabe Philip | EVP - Head of Inve… | SELL | $500K+ | 11K | $75.91 | Oct 29, 2024 |
| WEST ALFRED P JR | Executive Chairman | SELL | $100K–$500K | 6K | $67.50 | Aug 30, 2024 |
| WEST ALFRED P JR | Executive Chairman | SELL | $1M+ | 101K | $67.18 | Aug 28, 2024 |
| WEST ALFRED P JR | Executive Chairman | SELL | $1M+ | 72K | $67.52 | Aug 27, 2024 |
| DORAN WILLIAM | Director | SELL | $100K–$500K | 5K | $67.04 | Jun 25, 2024 |
| WEST ALFRED P JR | Executive Chairman | SELL | $1M+ | 19K | $72.14 | Apr 1, 2024 |
| WEST ALFRED P JR | Executive Chairman | SELL | $1M+ | 150K | $70.75 | Mar 28, 2024 |
| KLAUDER PAUL | EXECUTIVE VICE PRE… | SELL | $100K–$500K | 2K | $69.80 | Mar 28, 2024 |
| KLAUDER PAUL | EXECUTIVE VICE PRE… | EXERCISE | $50K–$100K | 2K | $40.64 | Mar 28, 2024 |
| Warner Mark Andrew | Insider | SELL | $100K–$500K | 3K | $67.31 | Feb 26, 2024 |
| Warner Mark Andrew | Insider | EXERCISE | $100K–$500K | 3K | $40.64 | Feb 26, 2024 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 486 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| LOOMIS SAYLES & CO L P | 7.7M | $1M+ | SH |
| STATE STREET CORP | 4.3M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6M | $1M+ | SH |
| LORD, ABBETT & CO. LLC | 1.9M | $1M+ | SH |
| Beutel, Goodman & Co Ltd. | 1.9M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 1.7M | $1M+ | SH |
| CAISSE DE DEPOT ET PLACEMENT DU QUEBEC | 1.4M | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 906K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 664K | $1M+ | SH |
| NORGES BANK | 653K | $1M+ | SH |
| Boston Trust Walden Corp | 637K | $1M+ | SH |
| VANGUARD GROUP INC | 579K | $1M+ | SH |
| AMERICAN CAPITAL MANAGEMENT INC | 575K | $1M+ | SH |
| PFA Pension, Forsikringsaktieselskab | 519K | $1M+ | SH |
| RAYMOND JAMES FINANCIAL INC | 503K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 464K | $1M+ | SH |
| ENVESTNET ASSET MANAGEMENT INC | 428K | $1M+ | SH |
| ProShare Advisors LLC | 405K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 397K | $1M+ | SH |
| VICTORY CAPITAL MANAGEMENT INC | 383K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 12, 2026
7.2%
8.8M shares
SC 13G/A · Nov 13, 2025
7.3%
9.0M shares
SC 13G/A · Aug 13, 2025
7.1%
8.9M shares
SC 13G/A · Jul 16, 2025
6.8%
8.5M shares
SC 13G/A · May 15, 2025
6.9%
8.7M shares
SC 13G/A · Feb 12, 2025
6.9%
8.9M shares
SC 13G/A · Nov 14, 2024
7.0%
9.2M shares
SC 13G/A · Nov 13, 2024
7.0%
9.2M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.0%
11.9M shares
Loomis Sayles & Co., L.P. #04-3200030
SC 13G/A · Feb 13, 2024
7.2%
9.5M shares
SC 13G/A · Jan 25, 2024
8.5%
11.2M shares
Loomis Sayles & Co., L.P. #04-3200030
SC 13G/A · Feb 13, 2023
7.8%
10.5M shares
Morgan Stanley I.R.S. # 36-3145972
SC 13G/A · Feb 10, 2023
4.7%
6.3M shares
SC 13G/A · Feb 3, 2023
8.5%
11.5M shares
Loomis Sayles & Co., L.P. #04-3200030
SC 13G/A · Feb 14, 2022
9.4%
13.2M shares
Morgan Stanley I.R.S. # 36-3145972
SC 13G · Feb 11, 2022
5.1%
7.1M shares