SEIC SEI Investments Company

NASDAQ

$103.87

SEI Investments Company (SEIC) SEC Filings

Everything SEIC has filed with the SEC, newest first. An 8-K shows what it was about where we have classified it — an earnings release and a change of chief executive are both 8-Ks, and the form number alone doesn't separate them.

83 filings
Date	Form	Filing
Oct 1, 2026	4	View filing
Sep 29, 2026	144	View filing
Sep 24, 2026	4	View filing
Sep 22, 2026	144	View filing
Sep 8, 2026	4	View filing
Sep 3, 2026	144	View filing
Sep 1, 2026	144	View filing
Sep 1, 2026	4	View filing
Aug 28, 2026	144	View filing
Aug 6, 2026	4	View filing
Aug 4, 2026	4	View filing
Aug 3, 2026	144	View filing
Jul 30, 2026	4	View filing
Jul 30, 2026	4	View filing
Jul 30, 2026	4	View filing
Jul 28, 2026	4	View filing
Jul 28, 2026	4	View filing
Jul 27, 2026	10-Q	View filing
Jun 29, 2026	4	View filing
Jun 11, 2026	4	View filing
May 5, 2026	4	View filing
Apr 30, 2026	4	View filing
Apr 27, 2026	10-Q	View filing
Apr 24, 2026	4	View filing
Apr 23, 2026	4	View filing
Apr 23, 2026	4	View filing
Apr 1, 2026	4/A	View filing
Apr 1, 2026	4	View filing
Mar 19, 2026	4	View filing
Mar 12, 2026	4	View filing
Feb 26, 2026	4	View filing
Feb 23, 2026	10-K	View filing
Feb 2, 2026	4	View filing
Jan 2, 2026	4	View filing
Dec 30, 2025	4	View filing
Dec 29, 2025	4	View filing
Dec 29, 2025	4	View filing
Dec 29, 2025	4	View filing
Dec 29, 2025	4	View filing
Dec 29, 2025	4	View filing
Dec 23, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 16, 2025	4	View filing
Dec 8, 2025	4	View filing
Dec 5, 2025	4	View filing
Nov 18, 2025	4	View filing
Nov 13, 2025	4	View filing
Nov 12, 2025	4	View filing
Oct 28, 2025	4	View filing
Oct 27, 2025	10-Q	View filing
Sep 29, 2025	4	View filing
Sep 24, 2025	4	View filing
Sep 17, 2025	4	View filing
Jul 28, 2025	10-Q	View filing
Apr 28, 2025	10-Q	View filing
Feb 20, 2025	10-K	View filing
Oct 25, 2024	10-Q	View filing
Jul 26, 2024	10-Q	View filing
Apr 29, 2024	10-Q	View filing
Feb 22, 2024	10-K/A	View filing
Feb 20, 2024	10-K	View filing
Oct 27, 2023	10-Q	View filing
Jul 28, 2023	10-Q	View filing
Apr 24, 2023	10-Q	View filing
Feb 24, 2023	10-K/A	View filing
Feb 21, 2023	10-K	View filing
Oct 28, 2022	10-Q	View filing
Jul 25, 2022	10-Q	View filing
Apr 29, 2022	10-Q/A	View filing
Apr 25, 2022	10-Q	View filing
Feb 22, 2022	10-K	View filing
Oct 25, 2021	10-Q	View filing

Filings are sourced from EDGAR and open on the SEC's own site. Classification of 8-K events is ours and is not part of the filing.