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  1. Home
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  3. WEST ALFRED P JR

WEST ALFRED P JR

CIK: 0001059374•Executive Chairman
OfficerDirector10% Owner
Primary company: SEI INVESTMENTS CO (SEIC)

WEST ALFRED P JR is a corporate insider (Executive Chairman) at SEI INVESTMENTS CO (SEIC) filing SEC Form 4 transactions. 1,505 transactions, totaling $8,327 in purchases and $570,457,582 in sales. Source: SEC EDGAR.

Total Transactions
1,505
Total Buy Value
$8K
Total Sell Value
$570.46M
Net Activity
$-570.45M
Last Transaction
Jun 2026
Companies
1

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Company
Type
Shares
Price
Value
Shares After
Date
SEC
SEI INVESTMENTS CO
SEIC
Sale1,680$88.09$148K6,818,451
6/29/2026
Filed: 6/26/2026
Filing →
SEI INVESTMENTS CO
SEIC
Sale5,652$87.18$493K6,820,131
6/29/2026
Filed: 6/26/2026
Filing →
SEI INVESTMENTS CO
SEIC
Sale3,838$87.67$336K6,825,783
6/26/2026
Filed: 6/26/2026
Filing →
SEI INVESTMENTS CO
SEIC
Sale46,162$87.21$4.03M6,829,621
6/26/2026
Filed: 6/26/2026
Filing →
SEI INVESTMENTS CO
SEIC
Sale1,371$79.94$110K6,875,783
3/11/2026
Filed: 3/10/2026
Filing →
SEI INVESTMENTS CO
SEIC
Sale6,076$79.11$481K6,877,154
3/11/2026
Filed: 3/10/2026
Filing →
SEI INVESTMENTS CO
SEIC
Sale29,431$80.47$2.37M6,883,230
3/10/2026
Filed: 3/10/2026
Filing →
SEI INVESTMENTS CO
SEIC
Sale25,391$79.97$2.03M6,912,661
3/10/2026
Filed: 3/10/2026
Filing →
SEI INVESTMENTS CO
SEIC
Sale178$78.88$14K6,938,052
3/10/2026
Filed: 3/10/2026
Filing →
SEI INVESTMENTS CO
SEIC
Tax Payment1,100$81.25$89K6,941,712
12/5/2025
Filed: 12/29/2025
Filing →
SEI INVESTMENTS CO
SEIC
Exercise30,000--0
12/3/2025
Filed: 12/5/2025
Filing →
SEI INVESTMENTS CO
SEIC
Sale24,770$80.87$2.00M6,942,812
12/3/2025
Filed: 12/5/2025
Filing →
SEI INVESTMENTS CO
SEIC
Exercise30,000$53.34$1.60M6,967,582
12/3/2025
Filed: 12/5/2025
Filing →
SEI INVESTMENTS CO
SEIC
Sale1,628$85.21$139K6,937,582
5/29/2025
Filed: 5/30/2025
Filing →
SEI INVESTMENTS CO
SEIC
Sale64,498$84.26$5.43M6,939,210
5/29/2025
Filed: 5/30/2025
Filing →
SEI INVESTMENTS CO
SEIC
Sale75,000$85.78$6.43M7,003,708
5/28/2025
Filed: 5/30/2025
Filing →
SEI INVESTMENTS CO
SEIC
Sale1,372$76.28$105K7,078,708
3/5/2025
Filed: 3/7/2025
Filing →
SEI INVESTMENTS CO
SEIC
Sale13,855$77.20$1.07M7,080,080
3/4/2025
Filed: 3/5/2025
Filing →
SEI INVESTMENTS CO
SEIC
Sale47,718$76.49$3.65M7,093,935
3/4/2025
Filed: 3/5/2025
Filing →
SEI INVESTMENTS CO
SEIC
Sale18,427$75.77$1.40M7,141,653
3/4/2025
Filed: 3/5/2025
Filing →
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
1,680
Price
$88.09
Value
$148K
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
5,652
Price
$87.18
Value
$493K
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
3,838
Price
$87.67
Value
$336K
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
46,162
Price
$87.21
Value
$4.03M
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
1,371
Price
$79.94
Value
$110K
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
6,076
Price
$79.11
Value
$481K
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
29,431
Price
$80.47
Value
$2.37M
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
25,391
Price
$79.97
Value
$2.03M
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
178
Price
$78.88
Value
$14K
SEI INVESTMENTS CO
SEIC
Type
Tax Payment
Shares
1,100
Price
$81.25
Value
$89K
SEI INVESTMENTS CO
SEIC
Type
Exercise
Shares
30,000
Price
-
Value
-
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
24,770
Price
$80.87
Value
$2.00M
SEI INVESTMENTS CO
SEIC
Type
Exercise
Shares
30,000
Price
$53.34
Value
$1.60M
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
1,628
Price
$85.21
Value
$139K
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
64,498
Price
$84.26
Value
$5.43M
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
75,000
Price
$85.78
Value
$6.43M
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
1,372
Price
$76.28
Value
$105K
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
13,855
Price
$77.20
Value
$1.07M
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
47,718
Price
$76.49
Value
$3.65M
SEI INVESTMENTS CO
SEIC
Type
Sale
Shares
18,427
Price
$75.77
Value
$1.40M
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© 2026 13F Insight — Track smart money. Ask the AI Agent.

Listed on Turbo0Featured on Findly ToolsFeatured on toolfame.comFeatured on saasfame.comFeatured on Gets.ToolsZ-ImageFeatured On Micro SaaS ExamplesListed on MarketingDBFeatured on SaasDBFeatured on FazierBusiness Services - OnToplist.comFeatured on SubmitMySaasFeatured on ToolDirsFeatured on ToolfioFeatured on Twelve ToolsListed on uno directoryFeatured on Dang.aiFeatured on ToolPilotFeatured on Startup FameFeatured on PostmakeFeatured on Code.Market