Alfred P. West Jr.
CIK: 0001059374
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
SEI INVESTMENTS CO
Discretionary Trading P&L
Holdings
Transaction History (38 total)
- Sep 30, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct5.5K shares at avg. $103.16$566K - Sep 29, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct28.4K shares at avg. $103.40$2.9M - Jun 29, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct1.7K shares at avg. $88.09$148K - Jun 29, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct5.7K shares at avg. $87.18$493K - Jun 26, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct46.2K shares at avg. $87.21$4.0M - Jun 26, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct3.8K shares at avg. $87.67$336K - Mar 11, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct1.4K shares at avg. $79.94$110K - Mar 11, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct6.1K shares at avg. $79.11$481K - Mar 10, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct25.4K shares at avg. $79.97$2.0M - Mar 10, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct29.4K shares at avg. $80.47$2.4M - Mar 10, 2026SEIC
SEI INVESTMENTS CO
Sale(S)Direct178 shares at avg. $78.88$14K - Jan 1, 2026SEIC
SEI INVESTMENTS CO
Tax Payment(F)Direct3.5K shares at avg. $82.02$286K - Dec 5, 2025SEIC
SEI INVESTMENTS CO
Tax Payment(F)Direct1.1K shares at avg. $81.25$89K - Dec 3, 2025SEIC
SEI INVESTMENTS CO
Exercise(M)Direct30K shares at avg. $53.34$1.6M - Dec 3, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct24.8K shares at avg. $80.87$2.0M - May 29, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct1.6K shares at avg. $85.21$139K - May 29, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct64.5K shares at avg. $84.26$5.4M - May 28, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct75K shares at avg. $85.78$6.4M - Mar 5, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct1.4K shares at avg. $76.28$105K - Mar 4, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct13.9K shares at avg. $77.20$1.1M - Mar 4, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct47.7K shares at avg. $76.49$3.6M - Mar 4, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct18.4K shares at avg. $75.77$1.4M - Mar 3, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct31.8K shares at avg. $78.82$2.5M - Mar 3, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct19.4K shares at avg. $79.55$1.5M - Mar 3, 2025SEIC
SEI INVESTMENTS CO
Sale(S)Direct21.6K shares at avg. $80.30$1.7M
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 30, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 5,483 | $103.16 | $565,637 | Direct |
| Sep 29, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 28,394 | $103.40 | $2,936,025 | Direct |
| Jun 29, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 1,680 | $88.09 | $147,991 | Direct |
| Jun 29, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 5,652 | $87.18 | $492,741 | Direct |
| Jun 26, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 46,162 | $87.21 | $4,025,788 | Direct |
| Jun 26, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 3,838 | $87.67 | $336,477 | Direct |
| Mar 11, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 1,371 | $79.94 | $109,598 | Direct |
| Mar 11, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 6,076 | $79.11 | $480,672 | Direct |
| Mar 10, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 25,391 | $79.97 | $2,030,518 | Direct |
| Mar 10, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 29,431 | $80.47 | $2,368,313 | Direct |
| Mar 10, 2026 | SEIC SEI INVESTMENTS CO | Sale(S) | 178 | $78.88 | $14,041 | Direct |
| Jan 1, 2026 | SEIC SEI INVESTMENTS CO | Tax Payment(F) | 3,482 | $82.02 | $285,594 | Direct |
| Dec 5, 2025 | SEIC SEI INVESTMENTS CO | Tax Payment(F) | 1,100 | $81.25 | $89,375 | Direct |
| Dec 3, 2025 | SEIC SEI INVESTMENTS CO | Exercise(M) | 30,000 | $53.34 | $1,600,200 | Direct |
| Dec 3, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 24,770 | $80.87 | $2,003,150 | Direct |
| May 29, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 1,628 | $85.21 | $138,722 | Direct |
| May 29, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 64,498 | $84.26 | $5,434,601 | Direct |
| May 28, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 75,000 | $85.78 | $6,433,500 | Direct |
| Mar 5, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 1,372 | $76.28 | $104,656 | Direct |
| Mar 4, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 13,855 | $77.20 | $1,069,606 | Direct |
| Mar 4, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 47,718 | $76.49 | $3,649,950 | Direct |
| Mar 4, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 18,427 | $75.77 | $1,396,214 | Direct |
| Mar 3, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 31,821 | $78.82 | $2,508,131 | Direct |
| Mar 3, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 19,405 | $79.55 | $1,543,668 | Direct |
| Mar 3, 2025 | SEIC SEI INVESTMENTS CO | Sale(S) | 21,616 | $80.30 | $1,735,765 | Direct |
1-25 of 38 transactions
About WEST ALFRED P JR
WEST ALFRED P JR (SEC CIK 0001059374) files insider reports with the SEC as SEI INVESTMENTS CO (SEIC).
Signal8 holds 13 ownership filings by WEST ALFRED P JR, all Form 4s, filed between Nov 12, 2024 and Oct 1, 2026. Those filings report 38 transactions, from Nov 7, 2024 to Sep 30, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on WEST ALFRED P JR's filings is in OAKS, PA.
Recent filings by WEST ALFRED P JR
- Sep 30, 2026: Open-market sale of SEIC shares (Form 4, code S).
- Sep 29, 2026: Open-market sale of SEIC shares (Form 4, code S).
- Jun 29, 2026: Open-market sales of SEIC shares (2 lines, Form 4, code S).
- Jun 26, 2026: Open-market sales of SEIC shares (2 lines, Form 4, code S).
- Mar 11, 2026: Open-market sales of SEIC shares (2 lines, Form 4, code S).
Other insiders filing for SEI INVESTMENTS CO (SEIC)
- LANE MICHAEL, Executive Vice President
- Hicke Ryan, Chief Executive Officer
- ROMEO CARMEN, Director
- Peterson Michael, Executive Vice President
- McCabe Philip
- MCCARTHY KATHRYN, Director