SEI Investments Company SEIC

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SEI Investments Company - Common Stock · Company · Nasdaq · Financial Services / Asset Management

Paper trade (simulated — no real money)

Fill: USD 100.1550 · FX 1 USD = 1.291330 SGD · about SGD 129.3332 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 88.75 → 100.16 · 12.9%
100.26087.72075.180 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 27 Jul 2025 — 28 Jul 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
99.5700 100.8400 99.1600 100.1550 285,328
Weekend
Weekend
96.4500 99.8700 96.4500 99.2200 968,600
102.2900 102.2900 95.4000 96.7300 1,367,500
17 · 8-K After-hours · 16:03 ET FORM 8-K ↗
97.6500 98.8800 97.1300 98.7500 815,500
99.3700 99.6000 97.3500 97.6500 866,800
99.2900 99.6100 98.2300 99.3700 834,700
Weekend
Weekend
99.9300 100.7900 98.6100 99.2500 866,900
97.7300 100.2800 97.7300 100.2600 1,542,400
95.3700 98.5800 95.3700 98.1700 956,000
95.4000 96.7700 94.7300 94.8900 781,200
96.1400 96.7300 95.2900 96.1800 499,400
Weekend
Weekend
95.8000 96.4100 94.7000 95.4500 600,300
94.4800 96.6000 92.4700 94.7300 728,700
95.3200 95.9000 93.6200 94.5100 709,300
95.6600 96.1900 94.9000 95.9400 633,000
91.2000 95.6100 91.2000 94.9900 691,300
Weekend
Weekend
No trading
90.5700 92.0000 90.5000 91.4300 730,700
87.7100 91.0600 87.6600 90.0500 577,600
86.5900 88.1200 86.1100 87.7100 564,900
87.4300 88.4400 85.9400 86.4900 617,700
Weekend
Weekend
88.0700 88.4500 86.3900 87.2500 1,206,000
89.4100 90.9700 87.8200 87.9300 554,300
90.6900 90.6900 88.5700 88.8900 528,000
90.9300 91.5000 89.7200 90.2100 578,300
89.9100 90.7900 89.0100 90.5100 512,200
Weekend
Weekend
No trading
91.9500 91.9500 88.7600 89.4400 1,712,000
90.3600 91.5400 90.1300 91.0100 647,700
90.4300 91.4900 89.0600 90.7300 628,100
89.8700 90.5200 89.3200 89.5700 551,000
Weekend
Weekend
88.7100 89.7800 88.0500 89.4000 500,800
88.8400 89.3700 87.6600 88.1500 407,600
90.2600 90.8900 88.7600 88.8000 441,200
88.9500 91.4000 88.6900 90.2600 750,100
88.3600 89.3900 87.8100 88.2400 511,900
Weekend
Weekend
88.9300 89.6700 88.7000 89.4200 708,900
87.8500 89.2900 87.8500 88.5800 505,600
87.3900 87.5500 86.2600 87.0100 600,100
88.3200 88.7400 87.3900 87.7700 516,100
87.7500 88.7700 87.4500 88.3200 520,100
Weekend
Weekend
88.3200 89.1200 87.5600 87.8800 1,181,200
16 · 8-K After market open · 10:57 ET FORM 8-K ↗
89.5700 89.5700 87.9600 88.6000 696,200
90.8800 91.2700 89.5300 89.6800 404,100
90.7700 91.1000 90.1400 90.7600 557,500
No trading
Weekend
Weekend
90.0000 91.1100 89.5300 90.5300 527,800
90.2600 90.8900 88.7300 89.5900 624,800
91.2000 91.4800 89.9400 90.7700 668,900
91.9300 92.5800 90.9300 91.0400 596,700
90.4900 92.6900 90.3400 92.0100 661,700
Weekend
Weekend
92.0600 92.0600 90.4300 90.5800 565,400
93.0000 93.5000 91.4500 91.7000 545,400
91.8100 92.6000 91.0900 92.2400 535,200
91.0000 93.0000 90.5300 92.2900 983,900
91.1800 91.8900 90.3500 91.5900 592,400
Weekend
Weekend
89.9900 91.2100 88.7800 91.1800 481,400
91.3100 92.1200 89.6500 89.8900 602,500
91.2600 91.8400 90.6600 91.1700 772,500
91.2800 91.8100 90.5300 90.7900 696,800
90.1900 91.9600 89.6300 91.2700 735,800
Weekend
Weekend
91.1800 91.1800 89.7900 90.2200 844,000
90.1700 91.2700 89.7000 90.6800 1,275,500
91.4900 91.7400 89.9900 90.8700 932,900
91.1600 92.2100 90.3000 91.5100 1,292,800
15 · 10-Q After market open · 14:45 ET FORM 10-Q ↗
88.8000 91.1400 88.2900 91.0600 1,185,000
Weekend
Weekend
91.0500 91.4700 87.6600 88.8400 1,516,900
89.1400 92.8700 87.7000 91.0500 2,446,500
14 · 8-K After-hours · 16:03 ET FORM 8-K ↗
83.7100 84.8900 82.6600 84.7900 1,507,200
81.1400 83.6200 81.1400 83.1400 1,719,100
79.6800 81.8000 79.6800 81.4100 1,411,900
Weekend
Weekend
79.9200 81.0000 79.2700 79.7900 1,150,400
80.1100 80.5900 78.4700 78.9300 1,101,000
13 · DEF 14A After-hours · 16:06 ET DEFINITIVE PROXY STATEMENT ↗
80.2300 81.1600 79.7900 80.0100 880,300
78.9800 80.8800 78.9800 79.8000 746,400
76.4500 78.8600 76.3500 78.8000 974,400
Weekend
Weekend
76.8900 77.1300 75.8700 76.9800 1,000,000
77.6600 77.9600 76.4400 77.0700 881,600
76.7600 78.1900 76.5300 77.8500 1,157,100
75.6500 76.2600 75.0800 75.1800 1,559,000
76.6600 77.1500 75.5200 75.9700 754,900
Weekend
Weekend
No trading
76.9600 78.5000 76.5500 77.0100 540,000
78.9200 79.1900 77.8000 78.0400 524,700
78.2300 79.2700 77.1300 78.4700 825,400
76.3800 77.5300 76.2800 77.2100 870,900
Weekend
Weekend
76.3500 76.4800 75.1000 75.7200 748,000
77.2700 78.2700 76.7200 76.9200 750,100
78.9700 79.5400 76.8100 77.2000 941,300
77.8000 79.0700 77.4000 78.3400 559,400
79.5700 79.7800 78.2400 78.5900 687,900
Weekend
Weekend
77.8000 78.2000 77.0400 77.7900 1,691,700
77.1000 78.4900 77.0000 77.8700 535,600
78.1200 78.5600 77.5000 77.5700 498,100
79.0100 80.2400 78.7600 78.7700 546,300
80.4400 81.3700 77.9800 78.0900 818,400
Weekend
Weekend
79.7800 81.0600 79.4200 79.8900 1,091,900
78.2400 79.7600 77.5700 79.1500 1,186,600
79.7900 80.7300 78.0100 79.6400 836,600
81.1500 82.0900 78.8800 80.0200 885,700
80.2200 81.2600 78.6600 81.1600 1,160,200
Weekend
Weekend
80.3000 81.4900 79.1200 81.4400 1,054,500
81.5100 83.0100 81.1800 82.0500 999,700
82.8100 83.5600 81.7900 81.8100 1,173,800
80.4100 83.4000 79.7500 82.6700 1,046,500
12 · 8-K After-hours · 16:01 ET 8-K ↗
80.1000 82.9900 79.3700 82.3400 695,300
Weekend
Weekend
82.0500 82.8700 80.2900 81.3200 1,003,600
82.2200 83.6000 82.0800 83.3000 657,200
80.9500 82.1300 79.7400 81.8000 570,200
79.3600 80.9500 78.6100 80.2100 594,900
11 · 10-K After market open · 15:53 ET FORM 10-K ↗
81.3900 81.3900 78.8000 79.0700 666,800
Weekend
Weekend
80.5700 81.7400 79.7100 81.3900 574,500
80.4800 80.7500 79.2800 80.5700 692,900
79.1500 81.3500 79.0800 81.2500 570,600
78.8900 79.5800 77.5300 79.0200 717,700
No trading
Weekend
Weekend
77.4500 78.7700 76.2700 78.6300 1,347,300
80.6100 81.4200 76.4300 77.3300 1,183,500
82.8500 82.9900 79.2400 80.1800 748,900
85.1400 86.0400 81.2600 82.3000 987,900
84.5400 85.4900 84.0200 85.3700 515,300
Weekend
Weekend
85.3200 85.8400 83.5300 84.4500 901,700
86.0300 86.9200 84.2500 84.4100 688,100
85.2200 86.3600 83.1300 85.9400 950,000
88.6900 88.7400 82.9500 84.1300 1,010,800
87.4900 88.9200 86.6800 88.6900 783,800
Weekend
Weekend
87.8100 88.6800 86.9100 87.8500 1,325,600
88.7200 91.4200 86.0600 88.0400 1,929,300
10 · 8-K After-hours · 16:03 ET FORM 8-K ↗
84.4400 86.1500 84.0100 86.1000 855,700
85.4800 86.1300 84.4400 84.6400 533,200
85.1500 85.9300 85.0600 85.3400 416,800
Weekend
Weekend
85.9500 85.9500 84.3000 85.2000 424,100
86.6000 86.9900 85.9700 86.2000 394,600
84.4400 86.7900 84.2000 85.9700 542,000
85.3600 85.9300 83.5200 83.7200 474,800
No trading
Weekend
Weekend
86.4500 86.8100 85.8900 86.0100 357,200
9 · 8-K After-hours · 16:20 ET SEC Form 8-K ↗
85.7500 86.8800 85.7000 86.5400 575,500
84.6500 85.6700 84.4700 85.3200 560,900
86.1800 86.1800 84.0900 84.7100 505,500
86.0000 86.5600 85.3800 85.9900 522,600
Weekend
Weekend
87.2700 87.9400 86.6400 86.7700 430,700
87.1600 87.7600 86.4800 87.2500 576,000
87.5200 88.2100 86.3600 87.5100 529,600
86.9500 88.2500 85.6600 88.0100 620,200
82.9300 87.6900 82.8800 86.9500 858,600
Weekend
Weekend
81.7900 83.0700 81.6300 83.0100 557,300
No trading
83.1300 83.1800 81.9800 82.0200 449,600
83.9000 83.9700 82.8900 83.1600 481,900
84.3800 84.4500 83.6000 84.0900 598,500
Weekend
Weekend
85.3500 85.4200 84.5800 84.8500 402,300
No trading
86.0200 86.0200 85.1400 85.3700 280,400
85.6700 86.9800 85.2900 86.1200 801,300
83.3800 84.8900 83.3200 84.3500 460,900
Weekend
Weekend
83.3100 83.9000 82.6500 83.4400 1,540,300
83.7100 84.3600 82.9800 83.5000 681,600
82.6800 83.7100 82.3400 83.0800 546,900
8 · 8-K Pre-market · 08:32 ET FORM 8-K ↗
83.3000 83.8300 82.0700 82.9700 714,200
82.6300 84.0700 81.3900 81.9900 678,400
Weekend
Weekend
83.8500 83.8500 82.4600 83.0000 681,000
83.2900 84.0400 83.1900 83.3900 568,900
81.5000 83.4100 81.4800 83.2000 579,300
80.9600 82.1600 80.9600 81.5600 512,400
80.9800 81.3500 80.3700 80.9000 638,700
Weekend
Weekend
81.0600 81.6000 80.6000 81.1000 566,400
81.1300 82.1800 80.8600 81.2500 526,100
7 · 8-K After-hours · 16:41 ET FORM 8-K ↗
80.0000 81.0700 80.0000 81.0000 511,100
80.0100 80.7300 79.6900 79.9600 435,800
80.3600 81.3400 79.8600 79.9800 396,300
Weekend
Weekend
81.3200 81.6200 80.6000 80.8600 240,000
No trading
80.1900 81.5500 80.1900 80.8300 452,400
79.6400 80.5700 79.5400 80.2000 452,500
79.8900 80.0500 79.1500 79.3400 727,400
Weekend
Weekend
79.1000 80.3500 78.6400 80.0400 748,800
79.2300 80.0000 77.5100 78.8100 621,000
78.3700 78.7100 77.6500 78.4500 605,800
78.2800 79.2100 78.0000 78.2700 729,600
81.1900 81.3000 78.3100 78.7900 580,400
Weekend
Weekend
81.7200 82.2200 80.4500 81.5700 577,900
83.3800 83.5700 82.1800 82.2700 599,800
83.4500 84.6900 83.4500 83.7000 537,000
82.8700 84.3300 82.8200 83.5500 462,200
83.0900 83.4300 82.3500 82.9900 485,600
Weekend
Weekend
82.1100 83.2100 81.6800 82.9200 503,900
82.0400 82.5900 80.5900 82.1900 516,000
81.4100 82.8400 81.3000 82.3800 509,800
80.1000 81.7900 80.0100 81.6400 575,000
80.3800 80.9200 79.5400 80.8800 558,800
Weekend
Weekend
80.7500 81.0500 80.4300 80.6100 714,100
80.5400 81.6900 80.5400 80.8000 706,700
81.4000 81.5400 80.0700 80.6100 736,200
83.0700 83.0700 81.8200 81.8300 471,900
6 · 10-Q After market open · 14:34 ET FORM 10-Q ↗
83.2000 83.8800 82.6000 83.0700 616,500
Weekend
Weekend
5 · 8-K After-hours · 16:29 ET FORM 8-K ↗
82.1500 82.4600 81.2500 81.9100 784,700
80.0000 81.8200 78.3400 81.5300 1,400,500
4 · 8-K After-hours · 16:02 ET FORM 8-K ↗
82.2500 82.7500 81.4100 81.4100 724,600
81.6600 83.2100 81.3800 82.4700 696,700
81.2600 81.9000 80.9300 81.6900 609,100
Weekend
Weekend
80.8500 81.3300 80.0800 80.7900 629,900
82.8400 83.2300 80.4300 80.5100 868,600
83.9300 84.4000 82.2900 82.5700 690,700
81.5400 84.0200 81.5400 83.4200 788,700
81.5700 82.9600 81.5700 82.5200 536,300
Weekend
Weekend
84.3000 84.7200 81.1000 81.2200 623,600
85.2800 85.3300 83.7300 84.1100 491,800
84.8700 85.3700 83.9700 84.6000 730,900
85.8200 86.1400 84.1800 84.7400 816,700
85.7700 85.7700 84.3200 85.3500 826,400
Weekend
Weekend
84.9700 85.7500 84.6200 85.6200 809,000
84.1400 85.2400 83.4700 84.8600 823,300
84.5000 85.1800 83.7500 84.0700 815,000
85.4200 85.6400 84.2300 84.8500 525,800
86.2900 86.4300 85.2800 85.4200 671,500
Weekend
Weekend
85.4800 86.0100 85.3700 85.7000 508,500
85.6600 85.9700 84.8100 85.1000 781,200
86.4900 87.0900 85.7200 85.9700 1,366,700
87.3500 88.0100 86.0600 86.1800 637,600
86.4100 87.1600 85.5700 87.0800 900,800
Weekend
Weekend
86.9100 87.2500 86.2700 86.7200 2,395,400
87.1600 87.7000 85.9700 86.2500 683,400
3 · 8-K Pre-market · 07:33 ET FORM 8-K ↗
87.3200 88.2200 85.9900 86.6500 821,300
86.8300 87.8000 86.7600 87.2100 766,400
86.5200 87.0800 86.0300 86.6000 654,000
Weekend
Weekend
87.6700 87.7900 86.4000 86.5000 399,400
87.0400 87.8500 86.5000 87.7700 501,900
86.2100 87.7400 86.2100 86.8800 562,900
87.4300 87.4300 86.0100 86.6500 608,500
87.2200 87.5800 86.7600 87.4300 864,000
Weekend
Weekend
89.3900 89.5200 86.7500 87.1700 783,500
88.1600 89.3900 88.1000 89.2200 826,500
87.5900 88.2000 86.4900 87.7200 547,600
87.2900 88.1700 86.6600 88.1000 713,500
No trading
Weekend
Weekend
88.9500 89.1100 88.0200 88.2800 703,800
90.5500 90.5500 88.7300 88.8500 519,300
90.0000 90.9700 90.0000 90.5200 609,000
89.6300 90.4400 89.0900 90.3300 505,000
90.4300 90.4300 89.4800 89.6300 516,000
Weekend
Weekend
88.5600 90.6100 88.1600 90.1500 451,900
87.9500 88.4500 87.6900 88.1400 440,600
88.2100 88.7200 87.5600 88.4000 710,300
2 · 8-K After-hours · 16:09 ET FORM 8-K ↗
88.6700 89.0000 87.9200 88.2100 552,100
87.8700 88.7100 87.8000 88.6200 676,800
Weekend
Weekend
88.8500 88.9500 88.0000 88.1900 751,000
88.3000 89.2000 87.9300 88.8100 609,000
88.3400 88.7000 87.5800 88.5400 553,400
87.9200 88.1900 87.5300 88.0600 568,600
87.5900 88.0000 87.2200 87.4400 404,900
Weekend
Weekend
87.3500 88.1900 86.9800 87.5000 407,500
88.5000 88.7000 86.3600 86.8500 535,200
88.4500 88.4500 87.4200 88.2000 577,900
88.5000 88.9400 86.8800 87.8100 731,300
87.1300 88.3900 86.9400 88.3400 676,400
Weekend
Weekend
86.8300 87.0400 85.5500 86.4500 972,200
88.2600 89.1200 87.9300 88.1200 944,300
88.6400 89.5500 88.0700 88.5700 887,600
88.7500 89.6500 88.4000 88.4600 887,700
1 · 10-Q After market open · 14:16 ET FORM 10-Q ↗
90.0300 90.1400 88.6000 88.7500 978,700
Weekend

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

17 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
16 8-K FORM 8-K (opens SEC filing in a new tab) After market open · 10:57 ET Summarise
15 10-Q FORM 10-Q (opens SEC filing in a new tab) After market open · 14:45 ET Summarise
14 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
13 DEF 14A DEFINITIVE PROXY STATEMENT (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
11 10-K FORM 10-K (opens SEC filing in a new tab) After market open · 15:53 ET Summarise
10 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
9 8-K SEC Form 8-K (opens SEC filing in a new tab) After-hours · 16:20 ET Summarise
8 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 08:32 ET Summarise
7 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:41 ET Summarise
6 10-Q FORM 10-Q (opens SEC filing in a new tab) After market open · 14:34 ET Summarise
5 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:29 ET Summarise
4 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
3 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:33 ET Summarise
2 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise
1 10-Q FORM 10-Q (opens SEC filing in a new tab) After market open · 14:16 ET Summarise