Dudediligence.

SEI Investments Company

SEICNASDAQ · Security Brokers, Dealers & Flotation Companies
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$54.8M

27 notices · 585,170 sh

Oct 2025 to Oct 2026

Reported ·

$24.7M

21 sales · 0 buys

Oct 2025 to Jun 2026

The two figures cover different periods.

None of the 21 reported sales carry the 10b5-1 box. Together they are 0.24% of the shares on issue.

PLANNED · FORM 144Oct 2025 to Oct 2026REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-09-29: Alfred P. West, Jr., Form 1442026-09-22: LANE MICHAEL, Form 1442026-09-03: Hicke Ryan, Form 1442026-09-01: ROMEO CARMEN, Form 1442026-08-28: Peterson Michael, Form 1442026-08-05: McCabe Philip, Form 1442026-08-04: McCabe Philip, Form 1442026-08-03: MCCARTHY KATHRYN, Form 1442026-07-28: Warner Mark Andrew, Form 1442026-07-28: Peterson Michael, Form 1442026-07-28: GUARINO CARL, Form 1442026-07-24: Sharma Sanjay, Form 1442026-06-26: Alfred P. West, Jr., Form 1442026-06-09: William M Doran, Form 1442026-05-04: MCCARTHY KATHRYN, Form 1442026-04-28: Warner Mark Andrew, Form 1442026-04-23: PHILIP MC CABE, Form 1442026-04-23: Peterson Michael, Form 1442026-04-23: Sharma Sanjay, Form 1442026-03-10: Alfred Paul West Jr, Form 1442026-02-25: Warner Mark Andrew, Form 1442026-01-29: Hicke Ryan, Form 1442025-12-22: DORAN WILLIAM, Form 1442025-12-04: McCabe Philip, Form 1442025-12-03: WEST ALFRED P JR, Form 1442025-11-12: Peterson Michael, Form 1442025-11-11: ROMEO CARMEN, Form 1442025-11-11: ROMEO CARMEN, sold2025-11-12: Peterson Michael, sold2025-12-03: WEST ALFRED P JR, sold2025-12-04: McCabe Philip, sold2025-12-22: DORAN WILLIAM, sold2026-01-29: Hicke Ryan, sold2026-02-25: Warner Mark Andrew, sold2026-03-10: WEST ALFRED P JR, sold2026-04-23: Peterson Michael, sold2026-04-23: Sharma Sanjay, sold2026-04-23: McCabe Philip, sold2026-04-28: Warner Mark Andrew, sold2026-05-04: MCCARTHY KATHRYN, sold2026-06-09: DORAN WILLIAM, sold
under a no plan named▼ salesize is dollars

Form 144 notices, newest first

2026-09-29Alfred P. West, Jr., Affiliate$3,668,700
35,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-09-22LANE MICHAEL, Executive Vice President$246,669
2,400 shno plan dateForm 4s on file end Jun 23144 ↗
2026-09-03Hicke Ryan, CHIEF EXECUTIVE OFFICER$4,151,672
37,500 shno plan dateForm 4s on file end Jun 23144 ↗
2026-09-01ROMEO CARMEN, Director$548,502
5,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-28Peterson Michael, EXECUTIVE VICE PRESIDENT$4,181,773
37,500 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-05McCabe Philip, See Remarks$532,036
5,043 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-04McCabe Philip, See Remarks$2,621,431
24,957 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-03MCCARTHY KATHRYN, Director$1,035,348
10,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-07-28Warner Mark Andrew, In Remarks$1,535,187
15,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-07-28Peterson Michael, EXECUTIVE VICE PRESIDENT$2,551,125
25,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-07-28GUARINO CARL, Director$1,031,953
10,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-07-24Sharma Sanjay, See Remarks*$1,986,588
20,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-06-26Alfred P. West, Jr., Affiliate$5,187,870
59,000 shno plan date144 ↗
Form 4, 2026-06-29: sold 57,332 at $87.26 Form 4 ↗
2026-06-09William M Doran, Director$452,501
5,000 shno plan date144 ↗
Form 4, 2026-06-11: sold 5,000 at $90.50 Form 4 ↗
2026-05-04MCCARTHY KATHRYN, Director$910,747
10,000 shno plan date144 ↗
Form 4, 2026-05-05: sold 10,000 at $91.07 Form 4 ↗
2026-04-28Warner Mark Andrew, In Remarks$364,640
4,000 shno plan date144 ↗
Form 4, 2026-04-30: sold 4,000 at $91.16 Form 4 ↗
2026-04-23PHILIP MC CABE, See Remarks$1,834,646
20,000 shno plan date144 ↗
Form 4, 2026-04-24: sold 15,000 at $91.82 Form 4 ↗
2026-04-23Peterson Michael, EXECUTIVE VICE PRESIDENT$900,000
10,000 shno plan date144 ↗
Form 4, 2026-04-23: sold 10,000 at $90.00 Form 4 ↗
2026-04-23Sharma Sanjay, See Remarks*$2,252,914
25,000 shno plan date144 ↗
Form 4, 2026-04-23: sold 25,000 at $90.12 Form 4 ↗
2026-03-10Alfred Paul West Jr, Affiliate$5,437,720
67,000 shno plan date144 ↗
Form 4, 2026-03-12: sold 62,447 at $80.12 Form 4 ↗
2026-02-25Warner Mark Andrew, In Remarks$326,964
4,000 shno plan date144 ↗
Form 4, 2026-02-26: sold 4,000 at $81.74 Form 4 ↗
2026-01-29Hicke Ryan, CHIEF EXECUTIVE OFFICER$6,988,815
80,000 shno plan date144 ↗
Form 4, 2026-02-02: sold 80,000 at $87.36 Form 4 ↗
2025-12-22DORAN WILLIAM, Director$586,950
7,000 shno plan date144 ↗
Form 4, 2025-12-23: sold 7,000 at $83.85 Form 4 ↗
2025-12-04McCabe Philip, See Remarks$973,372
12,000 shno plan date144 ↗
Form 4, 2025-12-08: sold 12,000 at $81.11 Form 4 ↗
2025-12-03WEST ALFRED P JR, Officer, Director$2,003,217
24,770 shno plan date144 ↗
Form 4, 2025-12-05: sold 24,770 at $80.87 Form 4 ↗
2025-11-12Peterson Michael, EXECUTIVE VICE PRESIDENT$2,105,362
25,000 shno plan date144 ↗
Form 4, 2025-11-13: sold 25,000 at $84.21 Form 4 ↗
2025-11-11ROMEO CARMEN, Director$420,026
5,000 shno plan date144 ↗
Form 4, 2025-11-12: sold 5,000 at $84.01 Form 4 ↗