Insider Trading activities at Sei Investments Co (SEIC)

Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Sei Investments Co (SEIC) since 2014 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Sei Investments Co. Table 2 shows the detailed insider transactions. This company's CIK number is 350894.

Total stock buying since 2014: $491,589.
Total stock sales since 2014: $478,051,410.
Total stock option exercises since 2014: $81,780,871.


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22 insiders reported insider trading activities at Sei Investments Co (SEIC):
Insider trading activities of Mcgonigle Dennis
Insider trading activities of Mccarthy Kathryn
Insider trading activities of Loughlin Edward
Insider trading activities of Lieb Richard
Insider trading activities of Heilig Kathy
Insider trading activities of West Alfred P Jr
Insider trading activities of Guarino Carl
Insider trading activities of Mccabe Philip
Insider trading activities of Barr Kevin
Insider trading activities of Warner Mark Andrew
Insider trading activities of Meyer Stephen
Insider trading activities of Sharma Sanjay
Insider trading activities of Klauder Paul
Insider trading activities of Withrow Wayne
Insider trading activities of Ujobai Joseph P
Insider trading activities of Doran William
Insider trading activities of Crudup Robert
Insider trading activities of Blumenstein Sarah
Insider trading activities of Hicke Ryan
Insider trading activities of Klauder N Jeffrey
Insider trading activities of Peterson Michael
Insider trading activities of Romeo Carmen

Table 1. Yearly summary of insider stock purchases, sales, and option exercises at Sei Investments Co (SEIC).
Insider Buying Insider Sales Option Exercises
Year Shares Value Shares Value Shares Value
2025 0 $0 443,840 $36,730,431 151,500 $8,296,484
2024 0 $0 977,576 $72,160,466 191,000 $8,485,149
2023 0 $0 874,072 $52,420,356 214,000 $8,491,419
2022 0 $0 550,123 $30,791,291 162,500 $3,988,600
2021 0 $0 365,809 $22,148,949 218,470 $3,787,081
2020 0 $0 559,960 $31,476,493 277,000 $6,307,670
2019 3,110 $154,909 693,703 $39,930,627 377,203 $6,788,355
2018 3,637 $86,778 906,634 $56,138,166 595,082 $13,828,489
2017 0 $0 1,324,408 $73,350,896 483,750 $9,523,204
2016 6,592 $249,902 564,195 $26,126,659 185,613 $4,701,692
2015 0 $0 762,150 $36,575,851 358,750 $7,582,728
2014 0 $0 5,000 $201,225 0 $0

Table 2. Monthly summary of insider trading at Sei Investments Co (SEIC).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2025-08 0 $0 42,773 $3,778,893 42,773 $2,217,499
2025-07 0 $0 9,727 $862,136 9,727 $540,325
2025-05 0 $0 232,126 $19,668,746 94,000 $5,271,960
2025-03 0 $0 159,214 $12,420,656 5,000 $266,700
2024-12 0 $0 171,194 $14,648,094 35,000 $1,422,400
2024-11 0 $0 157,099 $12,605,470 25,000 $1,253,900
2024-10 0 $0 53,064 $3,988,304 55,500 $2,632,770
2024-09 0 $0 0 $0 10,500 $426,720
2024-08 0 $0 178,381 $12,009,759 10,000 $406,400
2024-06 0 $0 5,000 $335,200 0 $0
2024-05 0 $0 188,475 $12,905,977 0 $0
2024-03 0 $0 171,363 $12,148,946 2,000 $81,280
2024-02 0 $0 53,000 $3,518,716 53,000 $2,261,679
2023-12 0 $0 5,000 $295,000 15,000 $506,400
2023-11 0 $0 216,066 $12,528,572 13,924 $470,074
2023-10 0 $0 0 $0 12,500 $422,000
2023-09 0 $0 178,516 $10,849,618 46,076 $2,138,825
2023-08 0 $0 30,000 $1,866,750 30,000 $1,012,799
2023-07 0 $0 20,000 $1,259,400 20,000 $822,300
2023-06 0 $0 206,931 $12,012,201 20,000 $675,200
2023-03 0 $0 15,659 $877,843 12,500 $422,000
2023-02 0 $0 201,900 $12,730,972 44,000 $2,021,821
2022-12 0 $0 126,875 $7,410,640 50,000 $1,235,600
2022-11 0 $0 12,500 $762,485 62,500 $1,630,500

Table 3. Detailed insider trading at Sei Investments Co (SEIC)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2025-08-19 Hicke Ryan (CHIEF EXECUTIVE OFFICER) Sale 35,000 88.30 3,090,500
2025-08-19 Hicke Ryan (CHIEF EXECUTIVE OFFICER) Option Ex 35,000 49.63 1,737,050
2025-08-07 Peterson Michael (EXECUTIVE VICE PRESIDENT) Sale 7,089 88.55 627,730
2025-08-07 Peterson Michael (EXECUTIVE VICE PRESIDENT) Option Ex 7,089 61.81 438,171
2025-08-05 Peterson Michael (EXECUTIVE VICE PRESIDENT) Sale 684 88.69 60,663
2025-08-05 Peterson Michael (EXECUTIVE VICE PRESIDENT) Option Ex 684 61.81 42,278
2025-07-31 Peterson Michael (EXECUTIVE VICE PRESIDENT) Sale 4,727 88.51 418,386
2025-07-31 Peterson Michael (EXECUTIVE VICE PRESIDENT) Option Ex 4,727 61.81 292,175
2025-07-29 Warner Mark Andrew (Other) Sale 5,000 88.75 443,750
2025-07-29 Warner Mark Andrew (Other) Option Ex 5,000 49.63 248,150
2025-05-29 West Alfred P Jr (Executive Chairman) Sale 66,126 84.73 5,603,186
2025-05-28 West Alfred P Jr (Executive Chairman) Sale 75,000 85.78 6,433,500
2025-05-15 Peterson Michael (EXECUTIVE VICE PRESIDENT) Sale 50,000 84.27 4,213,500
2025-05-15 Peterson Michael (EXECUTIVE VICE PRESIDENT) Option Ex 50,000 58.50 2,925,000
2025-05-14 Sharma Sanjay (See Remarks*) Sale 20,000 83.40 1,668,000
2025-05-14 Sharma Sanjay (See Remarks*) Option Ex 20,000 53.34 1,066,800
2025-05-14 Hicke Ryan (CHIEF EXECUTIVE OFFICER) Sale 21,000 83.36 1,750,560
2025-05-14 Hicke Ryan (CHIEF EXECUTIVE OFFICER) Option Ex 24,000 53.34 1,280,160
2025-03-05 West Alfred P Jr (Executive Chairman) Sale 1,372 76.28 104,656
2025-03-04 West Alfred P Jr (Executive Chairman) Sale 80,000 76.49 6,118,960
2025-03-03 Warner Mark Andrew (Other) Sale 5,000 80.39 401,950
2025-03-03 Warner Mark Andrew (Other) Option Ex 5,000 53.34 266,700
2025-03-03 West Alfred P Jr (Executive Chairman) Sale 72,842 79.56 5,795,090
2024-12-16 West Alfred P Jr (Executive Chairman) Sale 52,042 85.38 4,443,502
2024-12-13 West Alfred P Jr (Executive Chairman) Sale 94,158 86.37 8,132,426
2024-12-06 West Alfred P Jr (Executive Chairman) Sale 5,984 84.23 504,032
2024-12-04 West Alfred P Jr (Executive Chairman) Sale 19,010 82.49 1,568,134
2024-12-04 West Alfred P Jr (Executive Chairman) Option Ex 35,000 40.64 1,422,400
2024-11-26 Doran William (Director) Sale 5,000 81.80 409,000
2024-11-20 Doran William (Director) Option Ex 10,000 40.64 406,400
2024-11-11 West Alfred P Jr (Executive Chairman) Sale 7,099 80.81 573,670
2024-11-08 West Alfred P Jr (Executive Chairman) Sale 100,000 80.26 8,026,000
2024-11-07 West Alfred P Jr (Executive Chairman) Sale 30,000 80.24 2,407,200
2024-11-06 Peterson Michael (EXECUTIVE VICE PRESIDENT) Sale 10,000 79.14 791,400
2024-11-06 Peterson Michael (EXECUTIVE VICE PRESIDENT) Option Ex 10,000 64.43 644,300
2024-11-06 Romeo Carmen (Director) Sale 5,000 79.64 398,200
2024-11-06 Romeo Carmen (Director) Option Ex 5,000 40.64 203,200
2024-10-28 Mccabe Philip (EVP - Head of Investment Mgmt) Sale 10,500 75.91 797,055
2024-10-28 Mccabe Philip (EVP - Head of Investment Mgmt) Option Ex 10,500 40.64 426,720
2024-10-28 Guarino Carl (Director) Sale 7,564 75.77 573,124
2024-10-28 Guarino Carl (Director) Option Ex 10,000 40.64 406,400
2024-10-25 Hicke Ryan (Chief Executive Officer) Sale 10,000 74.90 749,000
2024-10-25 Hicke Ryan (Chief Executive Officer) Option Ex 10,000 40.64 406,400
2024-10-25 Peterson Michael (EVP and General Counsel) Sale 25,000 74.77 1,869,125
2024-10-25 Peterson Michael (EVP and General Counsel) Option Ex 25,000 55.73 1,393,250
2024-09-30 Mccabe Philip (EVP - Head of Investment Mgmt) Option Ex 10,500 40.64 426,720
2024-08-29 West Alfred P Jr (Executive Chairman) Sale 5,670 67.50 382,725
2024-08-28 West Alfred P Jr (Executive Chairman) Sale 61,000 67.36 4,108,960
2024-08-27 West Alfred P Jr (Executive Chairman) Sale 40,129 66.90 2,684,630
2024-08-26 West Alfred P Jr (Executive Chairman) Sale 44,163 67.55 2,983,210
2024-08-23 West Alfred P Jr (Executive Chairman) Sale 27,419 67.48 1,850,234
2024-08-22 Hicke Ryan (CHIEF EXECUTIVE OFFICER) Option Ex 10,000 40.64 406,400
2024-06-24 Doran William (Director) Sale 5,000 67.04 335,200
2024-05-14 West Alfred P Jr (Executive Chairman) Sale 475 67.91 32,257
2024-05-13 West Alfred P Jr (Executive Chairman) Sale 48,000 68.09 3,268,320
2024-05-10 West Alfred P Jr (Executive Chairman) Sale 70,000 68.60 4,802,000
2024-05-09 West Alfred P Jr (Executive Chairman) Sale 70,000 68.62 4,803,400
2024-03-28 West Alfred P Jr (Executive Chairman) Sale 19,363 72.14 1,396,846
2024-03-26 West Alfred P Jr (Executive Chairman) Sale 150,000 70.75 10,612,500
2024-03-08 Klauder Paul (EXECUTIVE VICE PRESIDENT) Sale 2,000 69.80 139,600
2024-03-08 Klauder Paul (EXECUTIVE VICE PRESIDENT) Option Ex 2,000 40.64 81,280
2024-02-23 Warner Mark Andrew (Other) Sale 3,000 67.31 201,930
2024-02-23 Warner Mark Andrew (Other) Option Ex 3,000 40.64 121,920
2024-02-12 Sharma Sanjay (See Remarks*) Sale 15,000 67.20 1,008,000
2024-02-12 Sharma Sanjay (See Remarks*) Option Ex 15,000 40.64 609,600
2024-02-07 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Sale 16,970 66.05 1,120,783
2024-02-07 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Option Ex 16,970 46.99 797,420
2024-02-06 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Sale 700 65.90 46,130
2024-02-06 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Option Ex 700 40.64 28,448
2024-02-05 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Sale 17,330 65.89 1,141,873
2024-02-05 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Option Ex 17,330 40.64 704,291
2023-12-05 Doran William (Director) Option Ex 10,000 33.76 337,600
2023-12-01 Romeo Carmen (Director) Sale 5,000 59.00 295,000
2023-12-01 Romeo Carmen (Director) Option Ex 5,000 33.76 168,800
2023-11-22 West Alfred P Jr (Executive Chairman) Sale 18,559 57.91 1,074,751
2023-11-21 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Sale 8,924 58.00 517,592
2023-11-21 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Option Ex 8,924 33.76 301,274
2023-11-21 West Alfred P Jr (Executive Chairman) Sale 90,478 57.85 5,234,152
2023-11-20 West Alfred P Jr (Executive Chairman) Sale 49,946 58.24 2,908,855
2023-11-17 West Alfred P Jr (Executive Chairman) Sale 48,159 58.00 2,793,222
2023-11-02 Hicke Ryan (CHIEF EXECUTIVE OFFICER) Option Ex 5,000 33.76 168,800
2023-10-27 Mccabe Philip (EVP - Head of Investment Mgr) Option Ex 12,500 33.76 422,000
2023-09-20 Withrow Wayne (Executive Vice President) Sale 10,000 62.03 620,300
2023-09-20 Withrow Wayne (Executive Vice President) Option Ex 10,000 33.76 337,600
2023-09-19 Peterson Michael (EVP and General Counsel) Sale 25,000 61.29 1,532,250
2023-09-19 Peterson Michael (EVP and General Counsel) Option Ex 25,000 54.34 1,358,500
2023-09-19 Withrow Wayne (Executive Vice President) Sale 1,076 61.79 66,486
2023-09-19 Withrow Wayne (Executive Vice President) Option Ex 1,076 33.76 36,325
2023-09-13 West Alfred P Jr (Executive Chairman) Sale 43,192 60.14 2,597,566
2023-09-12 West Alfred P Jr (Executive Chairman) Sale 70,440 60.76 4,279,582
2023-09-11 West Alfred P Jr (Executive Chairman) Sale 18,808 61.02 1,147,664
2023-09-08 Mccarthy Kathryn (Director) Sale 10,000 60.58 605,770
2023-09-08 Mccarthy Kathryn (Director) Option Ex 10,000 40.64 406,400
2023-08-30 Mcgonigle Dennis (EVP, CFO) Sale 30,000 62.23 1,866,750
2023-08-30 Mcgonigle Dennis (EVP, CFO) Option Ex 30,000 33.76 1,012,799
2023-07-28 Peterson Michael (EVP and General Counsel) Sale 10,000 63.20 632,000
2023-07-28 Peterson Michael (EVP and General Counsel) Option Ex 10,000 48.47 484,700
2023-07-27 Withrow Wayne (Executive Vice President) Sale 10,000 62.74 627,400
2023-07-27 Withrow Wayne (Executive Vice President) Option Ex 10,000 33.76 337,600
2023-06-28 Hicke Ryan (Chief Executive Officer) Sale 23 58.68 1,349
2023-06-28 Hicke Ryan (Chief Executive Officer) Option Ex 20,000 33.76 675,200
2023-06-23 West Alfred P Jr (Executive Chairman) Sale 60,270 56.96 3,432,979
2023-06-22 West Alfred P Jr (Executive Chairman) Sale 41,304 57.68 2,382,414
2023-06-21 West Alfred P Jr (Executive Chairman) Sale 58,687 58.68 3,443,753
2023-06-20 West Alfred P Jr (Executive Chairman) Sale 46,647 58.99 2,751,706
2023-03-29 West Alfred P Jr (Executive Chairman) Sale 15,659 56.06 877,843
2023-03-27 Mccabe Philip (EVP - Head of Investment Mgr) Option Ex 12,500 33.76 422,000
2023-02-21 Blumenstein Sarah Sale 10,546 60.52 638,191
2023-02-21 Blumenstein Sarah Option Ex 10,546 48.55 512,008
2023-02-17 Blumenstein Sarah Sale 24,454 61.25 1,497,807
2023-02-17 Blumenstein Sarah Option Ex 24,454 49.32 1,205,973
2023-02-09 West Alfred P Jr (Executive Chairman) Sale 29,568 63.29 1,871,358
2023-02-08 West Alfred P Jr (Executive Chairman) Sale 37,566 63.54 2,386,943
2023-02-07 West Alfred P Jr (Executive Chairman) Sale 54,830 63.49 3,481,430
2023-02-06 West Alfred P Jr (Executive Chairman) Sale 35,936 63.39 2,277,983
2023-02-02 Sharma Sanjay (EVP (*Remarks)) Sale 9,000 64.14 577,260
2023-02-02 Sharma Sanjay (EVP (*Remarks)) Option Ex 9,000 33.76 303,840
2022-12-21 Mccarthy Kathryn Sale 10,000 59.25 592,500
2022-12-21 Mccarthy Kathryn Option Ex 10,000 33.76 337,600
2022-12-19 West Alfred P Jr (Executive Chairman) Sale 6,875 57.48 395,140
2022-12-16 West Alfred P Jr (Executive Chairman) Sale 100,000 58.03 5,803,000
2022-12-09 Barr Kevin (Executive Vice President) Option Ex 30,000 22.45 673,500
2022-12-06 Barr Kevin (Executive Vice President) Sale 10,000 62.00 620,000
2022-12-06 Doran William Option Ex 10,000 22.45 224,500
2022-11-18 Heilig Kathy (Treasurer) Sale 12,400 61.00 756,400
2022-11-18 Heilig Kathy (Treasurer) Option Ex 12,400 40.64 503,936
2022-11-17 Heilig Kathy (Treasurer) Sale 100 60.85 6,085
2022-11-17 Heilig Kathy (Treasurer) Option Ex 100 40.64 4,064
2022-11-16 West Alfred P Jr (Executive Chairman) Option Ex 50,000 22.45 1,122,500
2022-09-16 West Alfred P Jr (10% Owner) Sale 75,000 53.68 4,026,000
2022-09-15 West Alfred P Jr (10% Owner) Sale 83,386 55.07 4,592,067
2022-08-09 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Sale 15,000 55.78 836,700
2022-08-09 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Option Ex 15,000 22.45 336,750
2022-07-29 Mcgonigle Dennis (EXECUTIVE PRESIDENT) Sale 35,000 55.15 1,930,250
2022-07-29 Mcgonigle Dennis (EXECUTIVE PRESIDENT) Option Ex 35,000 22.45 785,750
2022-03-27 West Alfred P Jr (Executive Chairman) Sale 65,900 55.45 3,654,155
2022-03-24 West Alfred P Jr (Executive Chairman) Sale 100,000 55.59 5,559,000
2022-03-23 West Alfred P Jr (Executive Chairman) Sale 36,462 55.40 2,019,994
2021-12-09 West Alfred P Jr (10% Owner) Sale 100,000 61.00 6,100,000
2021-12-08 West Alfred P Jr (10% Owner) Sale 32,345 61.65 1,994,069
2021-12-06 West Alfred P Jr (10% Owner) Option Ex 50,000 15.77 788,500
2021-11-30 Barr Kevin (EXECUTIVE VICE PRESIDENT) Sale 40,000 59.63 2,385,200
2021-11-30 Barr Kevin (EXECUTIVE VICE PRESIDENT) Option Ex 40,000 15.77 630,800
2021-11-26 Meyer Stephen (EXECUTIVE VICE PRESIDENT) Option Ex 10,000 15.77 157,700
2021-11-19 Meyer Stephen (EXECUTIVE VICE PRESIDENT) Option Ex 10,000 15.77 157,700
2021-11-16 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Sale 4,000 65.00 260,000
2021-11-16 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Option Ex 4,000 15.77 63,080
2021-11-10 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Sale 4,000 64.47 257,880
2021-11-10 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Option Ex 4,000 15.77 63,080
2021-11-09 Withrow Wayne (EXECUTIVE VICE PRESIDENT) Sale 1,470 64.30 94,521
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Insider trading activities including stock purchases, stock sales, and option exercises of SEIC listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Sei Investments Co (symbol SEIC, CIK number 350894) see the Securities and Exchange Commission (SEC) website.



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