SEIC

insider transactions

SEI INVESTMENTS CO — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Net shares · 365d

-346.7K

0 buy · 346.7K sell

Net value · 365d

-$29.7M

$0 in · $29.7M out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 346.7K sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Exercise·M
Apr 28, 26

Warner Mark Andrew

In Remarks

—

2.0K sh

Own New
Exercise·M
Apr 28, 26

Warner Mark Andrew

In Remarks

—

2.0K sh

Own New
Sell·S
Apr 28, 26

Warner Mark Andrew

In Remarks

$364.6K

4.0K sh · $91.16

Own -81%
Exercise·M
Apr 28, 26

Warner Mark Andrew

In Remarks

$193.9K

4.0K sh · $48.47

Own +434%
Exercise·M
Apr 23, 26

Sharma Sanjay KEY

Title: Executive Vice Preside…

—

12.5K sh

Own New
Exercise·M
Apr 23, 26

Sharma Sanjay KEY

Title: Executive Vice Preside…

—

12.5K sh

Own New
Sell·S
Apr 23, 26

Sharma Sanjay KEY

Title: Executive Vice Preside…

$141.4K

1.6K sh · $90.73

Own -4%
Sell·S
Apr 23, 26

Sharma Sanjay KEY

Title: Executive Vice Preside…

$2.1M

23.4K sh · $90.08

Own -36%
Exercise·M
Apr 23, 26

Sharma Sanjay KEY

Title: Executive Vice Preside…

$620.4K

12.5K sh · $49.63

Own +24%
Exercise·M
Apr 23, 26

Sharma Sanjay KEY

Title: Executive Vice Preside…

$620.4K

12.5K sh · $49.63

Own +31%
Exercise·M
Apr 23, 26

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

—

10.0K sh

Own New
Sell·S
Apr 23, 26

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$900.0K

10.0K sh · $90.00

Own -33%
Exercise·M
Apr 23, 26

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$484.7K

10.0K sh · $48.47

Own +50%
Sell·S
Apr 23, 26

McCabe Philip KEY

Title: Executive Vice Preside…

$1.4M

15.0K sh · $91.82

Own -21%
Other·F
Mar 18, 26

Denham Sean KEY

Executive VP, CFO, COO

$604.4K

7.7K sh · $78.77

Own -12%
Sell·S
Mar 11, 26

WEST ALFRED P JR

Other

$109.6K

1.4K sh · $79.94

Own -0%
Sell·S
Mar 11, 26

WEST ALFRED P JR

Other

$480.7K

6.1K sh · $79.11

Own -0%
Sell·S
Mar 10, 26

WEST ALFRED P JR

Other

$14.0K

178 sh · $78.88

Own -0%
Sell·S
Mar 10, 26

WEST ALFRED P JR

Other

$2.0M

25.4K sh · $79.97

Own -0%
Sell·S
Mar 10, 26

WEST ALFRED P JR

Other

$2.4M

29.4K sh · $80.47

Own -0%
Exercise·M
Feb 25, 26

Warner Mark Andrew

Other

—

2.0K sh

Own New
Exercise·M
Feb 25, 26

Warner Mark Andrew

Other

—

2.0K sh

Own New
Grant·A
Feb 25, 26

Warner Mark Andrew

Other

$142.2K

2.0K sh · $71.12

Own +217%
Sell·S
Feb 25, 26

Warner Mark Andrew

Other

$327.0K

4.0K sh · $81.74

Own -81%
Grant·A
Feb 25, 26

Warner Mark Andrew

Other

$142.2K

2.0K sh · $71.12

Own +68%
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

12.5K sh

Own New
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

17.5K sh

Own +44%
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

17.5K sh

Own New
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

20.0K sh

Own New
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

12.5K sh

Own New
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$989.5K

17.5K sh · $56.54

Own +7%
Sell·S
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$1.5M

17.0K sh · $86.75

Own -6%
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$848.2K

17.5K sh · $48.47

Own +8%
Sell·S
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$1.1M

13.1K sh · $88.06

Own -6%
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$1.3M

20.0K sh · $64.43

Own +8%
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$889.0K

12.5K sh · $71.12

Own +6%
Exercise·M
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$889.0K

12.5K sh · $71.12

Own +6%
Sell·S
Jan 29, 26

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$4.4M

49.9K sh · $87.39

Own -19%
Other·F
Jan 1, 26

WEST ALFRED P JR

Other

$285.6K

3.5K sh · $82.02

Own -0%
Other·G
Dec 30, 25

ROMEO CARMEN

Director

$0

15.5K sh

Own -1%
Sell·S
Dec 22, 25

DORAN WILLIAM

Director

$587.0K

7.0K sh · $83.85

Own -1%
Grant·A
Dec 12, 25

Brassington Jonathan

Director

—

2.3K sh

Own +57%
Grant·A
Dec 12, 25

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

288.3K sh

Own New
Grant·A
Dec 12, 25

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

25.9K sh

Own +15%
Grant·A
Dec 12, 25

DORAN WILLIAM

Director

—

2.3K sh

Own +0%
Grant·A
Dec 12, 25

LANE MICHAEL KEY

Executive Vice President

—

49.6K sh

Own New
Grant·A
Dec 12, 25

LANE MICHAEL KEY

Executive Vice President

—

8.9K sh

Own +27%
Grant·A
Dec 12, 25

Denham Sean KEY

Executive Vice President, CFO

—

49.0K sh

Own New
Grant·A
Dec 12, 25

Denham Sean KEY

Executive Vice President, CFO

—

13.3K sh

Own +25%
Grant·A
Dec 12, 25

MCCARTHY KATHRYN

Director

—

2.3K sh

Own +3%
Grant·A
Dec 12, 25

ROMEO CARMEN

Director

—

2.3K sh

Own +0%
Grant·A
Dec 12, 25

McCabe Philip

See Remarks

—

47.0K sh

Own New
Grant·A
Dec 12, 25

McCabe Philip

See Remarks

—

8.4K sh

Own +13%
Grant·A
Dec 12, 25

Naratil Thomas C.

Director

—

2.3K sh

Own +109%
Grant·A
Dec 12, 25

Risi Karin A.

Director

—

2.3K sh

Own +109%
Grant·A
Dec 12, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

—

43.0K sh

Own New
Grant·A
Dec 12, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

—

7.7K sh

Own +57%
Grant·A
Dec 12, 25

GUARINO CARL

Director

—

2.3K sh

Own +14%
Grant·A
Dec 12, 25

Sharma Sanjay

See Remarks*

—

47.0K sh

Own New
Grant·A
Dec 12, 25

Sharma Sanjay

See Remarks*

—

7.5K sh

Own +23%
Grant·A
Dec 12, 25

Sharma Sanjay

See Remarks*

—

8.4K sh

Own +35%
Other·F
Dec 5, 25

McCabe Philip

See Remarks

$88.9K

1.1K sh · $81.25

Own -2%
Other·F
Dec 5, 25

WEST ALFRED P JR KEY

Executive Chairman

$89.4K

1.1K sh · $81.25

Own -0%
Other·F
Dec 5, 25

MCCARTHY KATHRYN

Director

$1.9K

24 sh · $81.25

Own -0%
Other·F
Dec 5, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$86.4K

1.1K sh · $81.25

Own -5%
Other·F
Dec 5, 25

Warner Mark Andrew

Other

$30.8K

379 sh · $81.25

Own -29%
Exercise·M
Dec 4, 25

McCabe Philip

See Remarks

—

12.0K sh

Own New
Sell·S
Dec 4, 25

McCabe Philip

See Remarks

$973.3K

12.0K sh · $81.11

Own -16%
Exercise·M
Dec 4, 25

McCabe Philip

See Remarks

$640.1K

12.0K sh · $53.34

Own +19%
Exercise·M
Dec 3, 25

WEST ALFRED P JR KEY

Executive Chairman

—

30.0K sh

Own New
Exercise·M
Dec 3, 25

WEST ALFRED P JR KEY

Executive Chairman

$1.6M

30.0K sh · $53.34

Own +0%
Sell·S
Dec 3, 25

WEST ALFRED P JR KEY

Executive Chairman

$2.0M

24.8K sh · $80.87

Own -0%
Exercise·M
Nov 17, 25

DORAN WILLIAM

Director

—

5.0K sh

Own New
Exercise·M
Nov 17, 25

DORAN WILLIAM

Director

—

5.0K sh

Own New
Exercise·M
Nov 17, 25

DORAN WILLIAM

Director

$533.4K

10.0K sh · $53.34

Own +2%
Exercise·M
Nov 12, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

—

25.0K sh

Own New
Exercise·M
Nov 12, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$1.4M

25.0K sh · $54.34

Own +185%
Sell·S
Nov 12, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$2.1M

25.0K sh · $84.21

Own -65%
Exercise·M
Nov 11, 25

ROMEO CARMEN

Director

—

5.0K sh

Own New
Exercise·M
Nov 11, 25

ROMEO CARMEN

Director

$266.7K

5.0K sh · $53.34

Own +0%
Sell·S
Nov 11, 25

ROMEO CARMEN

Director

$420.1K

5.0K sh · $84.01

Own -0%
Exercise·M
Oct 24, 25

McCabe Philip

See Remarks

—

12.0K sh

Own New
Exercise·M
Oct 24, 25

McCabe Philip

See Remarks

$640.1K

12.0K sh · $53.34

Own +24%
Exercise·M
Sep 29, 25

MCCARTHY KATHRYN

Director

—

5.0K sh

Own New
Exercise·M
Sep 29, 25

MCCARTHY KATHRYN

Director

—

5.0K sh

Own New
Exercise·M
Sep 29, 25

MCCARTHY KATHRYN

Director

$533.4K

10.0K sh · $53.34

Own +13%
Sell·S
Sep 29, 25

MCCARTHY KATHRYN

Director

$856.6K

10.0K sh · $85.66

Own -12%
Exercise·M
Sep 23, 25

GUARINO CARL

Director

—

5.0K sh

Own New
Exercise·M
Sep 23, 25

GUARINO CARL

Director

—

5.0K sh

Own New
Sell·S
Sep 23, 25

GUARINO CARL

Director

$864.1K

10.0K sh · $86.41

Own -38%
Exercise·M
Sep 23, 25

GUARINO CARL

Director

$533.4K

10.0K sh · $53.34

Own +62%
Other·F
Sep 16, 25

LANE MICHAEL KEY

Executive Vice President

$340.8K

3.9K sh · $86.60

Own -11%
Exercise·M
Aug 19, 25

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

17.5K sh

Own New
Exercise·M
Aug 19, 25

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

—

17.5K sh

Own New
Sell·S
Aug 19, 25

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$3.1M

35.0K sh · $88.30

Own -17%
Exercise·M
Aug 19, 25

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$868.5K

17.5K sh · $49.63

Own +10%
Exercise·M
Aug 19, 25

Hicke Ryan KEY

CHIEF EXECUTIVE OFFICER

$868.5K

17.5K sh · $49.63

Own +9%
Exercise·M
Aug 7, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

—

7.1K sh

Own New
Sell·S
Aug 7, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$627.7K

7.1K sh · $88.55

Own -34%
Exercise·M
Aug 7, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$438.2K

7.1K sh · $61.81

Own +53%
Exercise·M
Aug 5, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

—

684 sh

Own +11%
Exercise·M
Aug 5, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$42.3K

684 sh · $61.81

Own +5%
Sell·S
Aug 5, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$60.7K

684 sh · $88.69

Own -5%
Exercise·M
Jul 31, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

—

4.7K sh

Own +155%
Exercise·M
Jul 31, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$292.2K

4.7K sh · $61.81

Own +35%
Sell·S
Jul 31, 25

Peterson Michael KEY

EXECUTIVE VICE PRESIDENT

$418.4K

4.7K sh · $88.51

Own -26%
Exercise·M
Jul 29, 25

Warner Mark Andrew

Other

—

2.5K sh

Own New
Exercise·M
Jul 29, 25

Warner Mark Andrew

Other

—

2.5K sh

Own New
Exercise·M
Jul 29, 25

Warner Mark Andrew

Other

$248.2K

5.0K sh · $49.63

Own +385%
Sell·S
Jul 29, 25

Warner Mark Andrew

Other

$443.8K

5.0K sh · $88.75

Own -79%
Grant·A
Jul 22, 25

Naratil Thomas C.

Director

—

2.1K sh

Own New
Grant·A
Jul 22, 25

Risi Karin A.

Director

—

2.1K sh

Own New

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
Apr 28, 2026	Warner Mark Andrew	In Remarks	Exercise M	2.0K	New	—	—
Apr 28, 2026	Warner Mark Andrew	In Remarks	Exercise M	2.0K	New	—	—
Apr 28, 2026	Warner Mark Andrew	In Remarks	Sell S	4.0K	-81%	$91.16	$364.6K
Apr 28, 2026	Warner Mark Andrew	In Remarks	Exercise M	4.0K	+434%	$48.47	$193.9K
Apr 23, 2026	Sharma Sanjay KEY	Title: Executive Vice President, CEO of SEI International, and Global Head of SEI's Private Banking business	Exercise M	12.5K	New	—	—
Apr 23, 2026	Sharma Sanjay KEY	Title: Executive Vice President, CEO of SEI International, and Global Head of SEI's Private Banking business	Exercise M	12.5K	New	—	—
Apr 23, 2026	Sharma Sanjay KEY	Title: Executive Vice President, CEO of SEI International, and Global Head of SEI's Private Banking business	Sell S	1.6K	-4%	$90.73	$141.4K
Apr 23, 2026	Sharma Sanjay KEY	Title: Executive Vice President, CEO of SEI International, and Global Head of SEI's Private Banking business	Sell S	23.4K	-36%	$90.08	$2.1M
Apr 23, 2026	Sharma Sanjay KEY	Title: Executive Vice President, CEO of SEI International, and Global Head of SEI's Private Banking business	Exercise M	12.5K	+24%	$49.63	$620.4K
Apr 23, 2026	Sharma Sanjay KEY	Title: Executive Vice President, CEO of SEI International, and Global Head of SEI's Private Banking business	Exercise M	12.5K	+31%	$49.63	$620.4K
Apr 23, 2026	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	10.0K	New	—	—
Apr 23, 2026	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Sell S	10.0K	-33%	$90.00	$900.0K
Apr 23, 2026	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	10.0K	+50%	$48.47	$484.7K
Apr 23, 2026	McCabe Philip KEY	Title: Executive Vice President, Head of SEI's Investment Managers business	Sell S	15.0K	-21%	$91.82	$1.4M
Mar 18, 2026	Denham Sean KEY	Executive VP, CFO, COO	Other F	7.7K	-12%	$78.77	$604.4K
Mar 11, 2026	WEST ALFRED P JR	Other	Sell S	1.4K	-0%	$79.94	$109.6K
Mar 11, 2026	WEST ALFRED P JR	Other	Sell S	6.1K	-0%	$79.11	$480.7K
Mar 10, 2026	WEST ALFRED P JR	Other	Sell S	178	-0%	$78.88	$14.0K
Mar 10, 2026	WEST ALFRED P JR	Other	Sell S	25.4K	-0%	$79.97	$2.0M
Mar 10, 2026	WEST ALFRED P JR	Other	Sell S	29.4K	-0%	$80.47	$2.4M
Feb 25, 2026	Warner Mark Andrew	Other	Exercise M	2.0K	New	—	—
Feb 25, 2026	Warner Mark Andrew	Other	Exercise M	2.0K	New	—	—
Feb 25, 2026	Warner Mark Andrew	Other	Grant A	2.0K	+217%	$71.12	$142.2K
Feb 25, 2026	Warner Mark Andrew	Other	Sell S	4.0K	-81%	$81.74	$327.0K
Feb 25, 2026	Warner Mark Andrew	Other	Grant A	2.0K	+68%	$71.12	$142.2K
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	12.5K	New	—	—
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	17.5K	+44%	—	—
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	17.5K	New	—	—
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	20.0K	New	—	—
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	12.5K	New	—	—
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	17.5K	+7%	$56.54	$989.5K
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Sell S	17.0K	-6%	$86.75	$1.5M
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	17.5K	+8%	$48.47	$848.2K
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Sell S	13.1K	-6%	$88.06	$1.1M
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	20.0K	+8%	$64.43	$1.3M
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	12.5K	+6%	$71.12	$889.0K
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	12.5K	+6%	$71.12	$889.0K
Jan 29, 2026	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Sell S	49.9K	-19%	$87.39	$4.4M
Jan 1, 2026	WEST ALFRED P JR	Other	Other F	3.5K	-0%	$82.02	$285.6K
Dec 30, 2025	ROMEO CARMEN	Director	Other G	15.5K	-1%	—	$0
Dec 22, 2025	DORAN WILLIAM	Director	Sell S	7.0K	-1%	$83.85	$587.0K
Dec 12, 2025	Brassington Jonathan	Director	Grant A	2.3K	+57%	—	—
Dec 12, 2025	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Grant A	288.3K	New	—	—
Dec 12, 2025	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Grant A	25.9K	+15%	—	—
Dec 12, 2025	DORAN WILLIAM	Director	Grant A	2.3K	+0%	—	—
Dec 12, 2025	LANE MICHAEL KEY	Executive Vice President	Grant A	49.6K	New	—	—
Dec 12, 2025	LANE MICHAEL KEY	Executive Vice President	Grant A	8.9K	+27%	—	—
Dec 12, 2025	Denham Sean KEY	Executive Vice President, CFO	Grant A	49.0K	New	—	—
Dec 12, 2025	Denham Sean KEY	Executive Vice President, CFO	Grant A	13.3K	+25%	—	—
Dec 12, 2025	MCCARTHY KATHRYN	Director	Grant A	2.3K	+3%	—	—
Dec 12, 2025	ROMEO CARMEN	Director	Grant A	2.3K	+0%	—	—
Dec 12, 2025	McCabe Philip	See Remarks	Grant A	47.0K	New	—	—
Dec 12, 2025	McCabe Philip	See Remarks	Grant A	8.4K	+13%	—	—
Dec 12, 2025	Naratil Thomas C.	Director	Grant A	2.3K	+109%	—	—
Dec 12, 2025	Risi Karin A.	Director	Grant A	2.3K	+109%	—	—
Dec 12, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Grant A	43.0K	New	—	—
Dec 12, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Grant A	7.7K	+57%	—	—
Dec 12, 2025	GUARINO CARL	Director	Grant A	2.3K	+14%	—	—
Dec 12, 2025	Sharma Sanjay	See Remarks*	Grant A	47.0K	New	—	—
Dec 12, 2025	Sharma Sanjay	See Remarks*	Grant A	7.5K	+23%	—	—
Dec 12, 2025	Sharma Sanjay	See Remarks*	Grant A	8.4K	+35%	—	—
Dec 5, 2025	McCabe Philip	See Remarks	Other F	1.1K	-2%	$81.25	$88.9K
Dec 5, 2025	WEST ALFRED P JR KEY	Executive Chairman	Other F	1.1K	-0%	$81.25	$89.4K
Dec 5, 2025	MCCARTHY KATHRYN	Director	Other F	24	-0%	$81.25	$1.9K
Dec 5, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Other F	1.1K	-5%	$81.25	$86.4K
Dec 5, 2025	Warner Mark Andrew	Other	Other F	379	-29%	$81.25	$30.8K
Dec 4, 2025	McCabe Philip	See Remarks	Exercise M	12.0K	New	—	—
Dec 4, 2025	McCabe Philip	See Remarks	Sell S	12.0K	-16%	$81.11	$973.3K
Dec 4, 2025	McCabe Philip	See Remarks	Exercise M	12.0K	+19%	$53.34	$640.1K
Dec 3, 2025	WEST ALFRED P JR KEY	Executive Chairman	Exercise M	30.0K	New	—	—
Dec 3, 2025	WEST ALFRED P JR KEY	Executive Chairman	Exercise M	30.0K	+0%	$53.34	$1.6M
Dec 3, 2025	WEST ALFRED P JR KEY	Executive Chairman	Sell S	24.8K	-0%	$80.87	$2.0M
Nov 17, 2025	DORAN WILLIAM	Director	Exercise M	5.0K	New	—	—
Nov 17, 2025	DORAN WILLIAM	Director	Exercise M	5.0K	New	—	—
Nov 17, 2025	DORAN WILLIAM	Director	Exercise M	10.0K	+2%	$53.34	$533.4K
Nov 12, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	25.0K	New	—	—
Nov 12, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	25.0K	+185%	$54.34	$1.4M
Nov 12, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Sell S	25.0K	-65%	$84.21	$2.1M
Nov 11, 2025	ROMEO CARMEN	Director	Exercise M	5.0K	New	—	—
Nov 11, 2025	ROMEO CARMEN	Director	Exercise M	5.0K	+0%	$53.34	$266.7K
Nov 11, 2025	ROMEO CARMEN	Director	Sell S	5.0K	-0%	$84.01	$420.1K
Oct 24, 2025	McCabe Philip	See Remarks	Exercise M	12.0K	New	—	—
Oct 24, 2025	McCabe Philip	See Remarks	Exercise M	12.0K	+24%	$53.34	$640.1K
Sep 29, 2025	MCCARTHY KATHRYN	Director	Exercise M	5.0K	New	—	—
Sep 29, 2025	MCCARTHY KATHRYN	Director	Exercise M	5.0K	New	—	—
Sep 29, 2025	MCCARTHY KATHRYN	Director	Exercise M	10.0K	+13%	$53.34	$533.4K
Sep 29, 2025	MCCARTHY KATHRYN	Director	Sell S	10.0K	-12%	$85.66	$856.6K
Sep 23, 2025	GUARINO CARL	Director	Exercise M	5.0K	New	—	—
Sep 23, 2025	GUARINO CARL	Director	Exercise M	5.0K	New	—	—
Sep 23, 2025	GUARINO CARL	Director	Sell S	10.0K	-38%	$86.41	$864.1K
Sep 23, 2025	GUARINO CARL	Director	Exercise M	10.0K	+62%	$53.34	$533.4K
Sep 16, 2025	LANE MICHAEL KEY	Executive Vice President	Other F	3.9K	-11%	$86.60	$340.8K
Aug 19, 2025	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	17.5K	New	—	—
Aug 19, 2025	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	17.5K	New	—	—
Aug 19, 2025	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Sell S	35.0K	-17%	$88.30	$3.1M
Aug 19, 2025	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	17.5K	+10%	$49.63	$868.5K
Aug 19, 2025	Hicke Ryan KEY	CHIEF EXECUTIVE OFFICER	Exercise M	17.5K	+9%	$49.63	$868.5K
Aug 7, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	7.1K	New	—	—
Aug 7, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Sell S	7.1K	-34%	$88.55	$627.7K
Aug 7, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	7.1K	+53%	$61.81	$438.2K
Aug 5, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	684	+11%	—	—
Aug 5, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	684	+5%	$61.81	$42.3K
Aug 5, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Sell S	684	-5%	$88.69	$60.7K
Jul 31, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	4.7K	+155%	—	—
Jul 31, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Exercise M	4.7K	+35%	$61.81	$292.2K
Jul 31, 2025	Peterson Michael KEY	EXECUTIVE VICE PRESIDENT	Sell S	4.7K	-26%	$88.51	$418.4K
Jul 29, 2025	Warner Mark Andrew	Other	Exercise M	2.5K	New	—	—
Jul 29, 2025	Warner Mark Andrew	Other	Exercise M	2.5K	New	—	—
Jul 29, 2025	Warner Mark Andrew	Other	Exercise M	5.0K	+385%	$49.63	$248.2K
Jul 29, 2025	Warner Mark Andrew	Other	Sell S	5.0K	-79%	$88.75	$443.8K
Jul 22, 2025	Naratil Thomas C.	Director	Grant A	2.1K	New	—	—
Jul 22, 2025	Risi Karin A.	Director	Grant A	2.1K	New	—	—

About SEIC insider trading

This page tracks insider transactions for SEI INVESTMENTS CO (SEIC) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.