SEI INVESTMENTS CO (SEIC) - Insider Trading & Ownership

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for SEI INVESTMENTS CO
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Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2025-09-29
Sale
2025-09-29
4:18 pm
SEI INVESTMENTS COSEICMCCARTHY KATHRYN
Director
10,000$85.66$856,60075,641
(Direct)
View
2025-09-23
Sale
2025-09-24
5:53 pm
SEI INVESTMENTS COSEICGUARINO CARL
Director
10,000$86.41$864,10016,042
(Direct)
View
2025-08-19
Sale
2025-08-20
4:46 pm
SEI INVESTMENTS COSEICHicke Ryan
CHIEF EXECUTIVE OFFICER
35,000$88.3$3,090,500185,947
(Indirect
Direct)
View
2025-08-07
Sale
2025-08-08
6:53 pm
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
7,089$88.55$627,73113,500
(Direct)
View
2025-08-05
Sale
2025-08-06
4:05 pm
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
684$88.69$60,66420,589
(Direct)
View
2025-07-31
Sale
2025-08-04
11:59 am
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
4,727$88.51$418,38721,273
(Direct)
View
2025-07-29
Sale
2025-07-30
3:26 pm
SEI INVESTMENTS COSEICWarner Mark Andrew
See Remarks
5,000$88.75$443,7501,300
(Direct)
View
2025-05-28
Sale
2025-05-30
12:53 pm
SEI INVESTMENTS COSEICWEST ALFRED P JR
Executive Chairman
141,126$85.08$12,006,8236,937,582
(Direct)
View
2025-05-14
Sale
2025-05-16
2:25 pm
SEI INVESTMENTS COSEICHicke Ryan
CHIEF EXECUTIVE OFFICER
21,000$83.36$1,750,560185,878
(Indirect
Direct)
View
2025-05-15
Sale
2025-05-16
08:57 am
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
50,000$84.27$4,213,50013,500
(Direct)
View
2025-05-14
Sale
2025-05-16
08:56 am
SEI INVESTMENTS COSEICSharma Sanjay
See Remarks*
20,000$83.4$1,668,00026,264
(Indirect
Direct)
View
2025-03-05
Sale
2025-03-07
10:45 am
SEI INVESTMENTS COSEICWEST ALFRED P JR
Executive Chairman
1,372$76.28$104,6567,078,708
(Direct)
View
2025-03-03
Sale
2025-03-05
10:44 am
SEI INVESTMENTS COSEICWEST ALFRED P JR
Executive Chairman
152,842$77.88$11,903,3337,080,080
(Direct)
View
2025-03-03
Sale
2025-03-05
10:41 am
SEI INVESTMENTS COSEICWarner Mark Andrew
See Remarks
5,000$80.39$401,9501,300
(Direct)
View
2024-12-13
Sale
2024-12-17
4:09 pm
SEI INVESTMENTS COSEICWEST ALFRED P JR
Executive Chairman
146,200$85.55$12,507,4807,232,922
(Direct)
View
2024-12-04
Sale
2024-12-06
5:28 pm
SEI INVESTMENTS COSEICWEST ALFRED P JR
Executive Chairman
10% Owner
24,994$82.91$2,072,1677,371,522
(Direct)
View
2024-11-26
Sale
2024-11-27
3:32 pm
SEI INVESTMENTS COSEICDORAN WILLIAM
Director
5,000$81.8$409,000661,386
(Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2025-09-29
Exercise
2025-09-29
4:18 pm
2017-12-31
2025-12-08
SEI INVESTMENTS COSEICMCCARTHY KATHRYN
Director
10,000$075,641
(Direct)
View
2025-09-29
Exercise
2025-09-29
4:18 pm
N/A
N/A
SEI INVESTMENTS COSEICMCCARTHY KATHRYN
Director
10,000$53.3475,641
(Direct)
View
2025-09-23
Exercise
2025-09-24
5:53 pm
2017-12-31
2025-12-08
SEI INVESTMENTS COSEICGUARINO CARL
Director
10,000$016,042
(Direct)
View
2025-09-23
Exercise
2025-09-24
5:53 pm
N/A
N/A
SEI INVESTMENTS COSEICGUARINO CARL
Director
10,000$53.3416,042
(Direct)
View
2025-09-16
Tax Withholding
2025-09-17
10:07 am
N/A
N/A
SEI INVESTMENTS COSEICLANE MICHAEL
Executive Vice President
3,935$86.633,220
(Direct)
View
2025-08-19
Exercise
2025-08-20
4:46 pm
2017-12-31
2026-12-13
SEI INVESTMENTS COSEICHicke Ryan
CHIEF EXECUTIVE OFFICER
35,000$0185,947
(Direct)
View
2025-08-19
Exercise
2025-08-20
4:46 pm
N/A
N/A
SEI INVESTMENTS COSEICHicke Ryan
CHIEF EXECUTIVE OFFICER
17,500$49.63185,947
(Direct)
View
2025-08-07
Exercise
2025-08-08
6:53 pm
2024-12-31
2032-12-05
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
7,089$013,500
(Direct)
View
2025-08-07
Exercise
2025-08-08
6:53 pm
N/A
N/A
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
7,089$61.8113,500
(Direct)
View
2025-08-05
Exercise
2025-08-06
4:05 pm
2024-12-31
2032-12-05
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
684$020,589
(Direct)
View
2025-08-05
Exercise
2025-08-06
4:05 pm
N/A
N/A
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
684$61.8120,589
(Direct)
View
2025-07-31
Exercise
2025-08-04
11:59 am
2024-12-31
2032-12-05
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
4,727$021,273
(Direct)
View
2025-07-31
Exercise
2025-08-04
11:59 am
N/A
N/A
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
4,727$61.8121,273
(Direct)
View
2025-07-29
Exercise
2025-07-30
3:26 pm
2017-12-31
2026-12-13
SEI INVESTMENTS COSEICWarner Mark Andrew
See Remarks
5,000$01,300
(Direct)
View
2025-07-29
Exercise
2025-07-30
3:26 pm
N/A
N/A
SEI INVESTMENTS COSEICWarner Mark Andrew
See Remarks
5,000$49.631,300
(Direct)
View
2025-07-22
Option Award
2025-07-24
12:39 pm
N/A
N/A
SEI INVESTMENTS COSEICNaratil Thomas C.
Director
2,076$02,076
(Direct)
View
2025-07-22
Option Award
2025-07-24
12:12 pm
N/A
N/A
SEI INVESTMENTS COSEICRisi Karin A.
Director
2,076$02,076
(Direct)
View
2025-05-14
Exercise
2025-05-16
2:25 pm
2017-12-31
2025-12-08
SEI INVESTMENTS COSEICHicke Ryan
CHIEF EXECUTIVE OFFICER
24,000$0185,878
(Direct)
View
2025-05-14
Exercise
2025-05-16
2:25 pm
N/A
N/A
SEI INVESTMENTS COSEICHicke Ryan
CHIEF EXECUTIVE OFFICER
24,000$53.34185,878
(Direct)
View
2025-05-15
Exercise
2025-05-16
08:57 am
2022-12-31
2030-12-08
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
50,000$013,500
(Direct)
View
2025-05-15
Exercise
2025-05-16
08:57 am
N/A
N/A
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
37,500$56.5413,500
(Direct)
View
2025-05-15
Exercise
2025-05-16
08:57 am
N/A
N/A
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
12,500$60.4613,500
(Direct)
View
2025-05-14
Exercise
2025-05-16
08:56 am
2017-12-31
2025-12-08
SEI INVESTMENTS COSEICSharma Sanjay
See Remarks*
20,000$026,264
(Direct)
View
2025-05-14
Exercise
2025-05-16
08:56 am
N/A
N/A
SEI INVESTMENTS COSEICSharma Sanjay
See Remarks*
20,000$53.3426,264
(Direct)
View
2025-03-31
Tax Withholding
2025-04-01
2:42 pm
N/A
N/A
SEI INVESTMENTS COSEICHicke Ryan
CHIEF EXECUTIVE OFFICER
4,349$77.11182,895
(Direct)
View
2025-03-18
Tax Withholding
2025-03-19
3:40 pm
N/A
N/A
SEI INVESTMENTS COSEICDenham Sean
Executive Vice President, CFO
7,823$74.9652,177
(Direct)
View
2025-03-03
Exercise
2025-03-05
10:41 am
2018-12-31
2025-12-08
SEI INVESTMENTS COSEICWarner Mark Andrew
See Remarks
5,000$01,300
(Direct)
View
2025-03-03
Exercise
2025-03-05
10:41 am
N/A
N/A
SEI INVESTMENTS COSEICWarner Mark Andrew
See Remarks
2,500$53.341,300
(Direct)
View
2024-12-31
Gift
2025-01-03
10:35 am
N/A
N/A
SEI INVESTMENTS COSEICDORAN WILLIAM
Director
47,500$0618,536
(Direct)
View
2024-12-31
Gift
2025-01-02
5:50 pm
N/A
N/A
SEI INVESTMENTS COSEICROMEO CARMEN
Director
6,300$01,573,527
(Direct)
View
2024-12-12
Option Award
2024-12-16
4:50 pm
N/A
2034-12-12
SEI INVESTMENTS COSEICHicke Ryan
CHIEF EXECUTIVE OFFICER
175,000$0336,796
(Direct)
View
2024-12-12
Option Award
2024-12-16
12:14 pm
N/A
N/A
SEI INVESTMENTS COSEICWEST ALFRED P JR
Executive Chairman
7,600$07,379,122
(Direct)
View
2024-12-12
Option Award
2024-12-16
11:05 am
N/A
2034-12-12
SEI INVESTMENTS COSEICSharma Sanjay
See Remarks*
43,000$059,895
(Direct)
View
2024-12-12
Option Award
2024-12-16
11:03 am
N/A
2034-12-12
SEI INVESTMENTS COSEICDenham Sean
Executive Vice President, CFO
37,500$082,500
(Direct)
View
2024-12-12
Option Award
2024-12-16
11:01 am
N/A
2034-12-12
SEI INVESTMENTS COSEICMcCabe Philip
See Remarks
43,000$086,544
(Direct)
View
2024-12-12
Option Award
2024-12-16
10:58 am
N/A
2034-12-12
SEI INVESTMENTS COSEICPeterson Michael
EXECUTIVE VICE PRESIDENT
43,000$049,500
(Direct)
View
2024-12-12
Option Award
2024-12-16
10:54 am
N/A
2034-12-12
SEI INVESTMENTS COSEICLANE MICHAEL
Executive Vice President
43,000$073,000
(Direct)
View
2024-12-12
Option Award
2024-12-16
10:52 am
N/A
N/A
SEI INVESTMENTS COSEICDORAN WILLIAM
Director
2,175$0663,561
(Direct)
View
2024-12-12
Option Award
2024-12-16
10:49 am
N/A
N/A
SEI INVESTMENTS COSEICGUARINO CARL
Director
2,175$016,442
(Direct)
View
2024-12-12
Option Award
2024-12-16
10:44 am
N/A
N/A
SEI INVESTMENTS COSEICBrassington Jonathan
Director
2,175$03,941
(Direct)
View
2024-12-12
Option Award
2024-12-16
10:40 am
N/A
N/A
SEI INVESTMENTS COSEICMCCARTHY KATHRYN
Director
2,175$075,641
(Direct)
View
2024-12-12
Option Award
2024-12-16
10:38 am
N/A
N/A
SEI INVESTMENTS COSEICROMEO CARMEN
Director
2,175$01,579,827
(Direct)
View
2024-12-12
Option Award
2024-12-16
10:36 am
N/A
N/A
SEI INVESTMENTS COSEICMILLER STEPHANIE D.
Director
2,175$03,941
(Direct)
View
2024-12-04
Exercise
2024-12-06
5:28 pm
2021-12-09
2024-12-09
SEI INVESTMENTS COSEICWEST ALFRED P JR
Executive Chairman
10% Owner
35,000$07,371,522
(Direct)
View
2024-12-04
Exercise
2024-12-06
5:28 pm
N/A
N/A
SEI INVESTMENTS COSEICWEST ALFRED P JR
Executive Chairman
10% Owner
35,000$40.647,371,522
(Direct)
View
2024-11-20
Exercise
2024-11-21
07:56 am
2017-12-31
2024-12-09
SEI INVESTMENTS COSEICDORAN WILLIAM
Director
10,000$0666,386
(Direct)
View
2024-11-20
Exercise
2024-11-21
07:56 am
N/A
N/A
SEI INVESTMENTS COSEICDORAN WILLIAM
Director
5,000$40.64666,386
(Direct)
View
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