What does CUSIP 784117103 represent in this 13F holders report?

CUSIP 784117103 is the security identifier for SEIC - SEI INVESTMENTS CO - Common Stock used to aggregate holder disclosures.

How many institutions held SEIC - SEI INVESTMENTS CO - Common Stock in Q1 2021?

434 institutional investors reported SEIC - SEI INVESTMENTS CO - Common Stock for Q1 2021. Use the holders table for investor-level position and value details.

SEI INVESTMENTS CO - Common Stock (SEIC)

CUSIP: 784117103

Q1 2021 13F Holders as of 31 Mar 2021

Type / Class: Equity / Common Stock
Shares outstanding: 122,515,233
Total 13F shares: 98,014,219
Share change: +216,161
Total reported value: $5,970,919,170
Put/Call ratio: 223%
Price per share: $60.93
Number of holders: 434
Value change: +$17,213,923
Number of buys: 173
Number of sells: 207

Quarterly Holders Quick Answers

What is CUSIP 784117103?
CUSIP 784117103 identifies SEIC - SEI INVESTMENTS CO - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2021
Previous quarter: Q4 2020

Recent filing periods for CUSIP 784117103:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of SEIC - SEI INVESTMENTS CO - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
LOOMIS SAYLES & CO L P	13F	Company	12%	14,868,214	$854,477,000	—	31 Dec 2020	13F
VANGUARD GROUP INC	13F	Company	10%	12,683,416	$728,917,000	—	31 Dec 2020	13F
BlackRock Finance, Inc.	13F	Company	10%	12,580,487	$723,002,000	—	31 Dec 2020	13F
ATLANTA CAPITAL MANAGEMENT CO L L C	13F	Company	4.6%	5,622,933	$323,150,000	—	31 Dec 2020	13F
STATE STREET CORP	13F	Company	4.5%	5,474,377	$316,639,000	—	31 Dec 2020	13F
BANK OF AMERICA CORP /DE/	13F	Company	3.1%	3,814,599	$219,225,000	—	31 Dec 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.5%	1,871,284	$107,720,000	—	31 Dec 2020	13F
Beutel, Goodman & Co Ltd.	13F	Company	1.4%	1,671,865	$96,082,000	—	31 Dec 2020	13F
CANADA LIFE ASSURANCE Co	13F	Company	1.2%	1,497,839	$85,955,000	—	31 Dec 2020	13F
Bank of New York Mellon Corp	13F	Company	1.2%	1,486,793	$85,447,000	—	31 Dec 2020	13F
NORGES BANK	13F	Company	1%	1,267,182	$72,825,000	—	31 Dec 2020	13F
AMERIPRISE FINANCIAL INC	13F	Company	1%	1,221,137	$70,183,000	—	31 Dec 2020	13F
NORTHERN TRUST CORP	13F	Company	0.97%	1,191,034	$68,448,000	—	31 Dec 2020	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	0.87%	1,069,478	$61,463,000	—	31 Dec 2020	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.84%	1,029,900	$59,185,000	—	31 Dec 2020	13F
Legal & General Group Plc	13F	Company	0.73%	898,760	$51,651,000	—	31 Dec 2020	13F
AMERICAN CAPITAL MANAGEMENT INC	13F	Company	0.63%	776,027	$44,598,000	—	31 Dec 2020	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.6%	731,463	$42,037,000	—	31 Dec 2020	13F
LOS ANGELES CAPITAL MANAGEMENT LLC	13F	Company	0.57%	693,004	$39,827,000	—	31 Dec 2020	13F
NATIXIS ADVISORS, LLC	13F	Company	0.54%	656,764	$37,745,000	—	31 Dec 2020	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.52%	641,565	$36,870,739	—	31 Dec 2020	13F
Sunriver Management LLC	13F	Company	0.5%	614,400	$35,310,000	—	31 Dec 2020	13F
Boston Trust Walden Corp	13F	Company	0.5%	607,045	$34,887,000	—	31 Dec 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.48%	590,175	$33,918,000	—	31 Dec 2020	13F
Invesco Ltd.	13F	Company	0.45%	552,630	$31,760,000	—	31 Dec 2020	13F
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	13F	Company	0.38%	466,271	$26,797,000	—	31 Dec 2020	13F
CITIGROUP INC	13F	Company	0.38%	462,934	$26,605,000	—	31 Dec 2020	13F
ROYCE & ASSOCIATES LP	13F	Company	0.36%	441,419	$25,368,000	—	31 Dec 2020	13F
MARKEL GROUP INC.	13F	Company	0.35%	426,200	$24,494,000	—	31 Dec 2020	13F
Sumitomo Mitsui Trust Group, Inc.	13F	Company	0.34%	420,047	$24,140,000	—	31 Dec 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.34%	415,916	$23,902,000	—	31 Dec 2020	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.32%	396,744	$22,801,000	—	31 Dec 2020	13F
Nuveen Asset Management, LLC	13F	Company	0.32%	392,979	$22,585,000	—	31 Dec 2020	13F
CITADEL ADVISORS LLC	13F	Company	0.31%	384,720	$22,109,000	—	31 Dec 2020	13F
CONFLUENCE INVESTMENT MANAGEMENT LLC	13F	Company	0.31%	383,762	$22,055,000	—	31 Dec 2020	13F
GOODNOW INVESTMENT GROUP, LLC	13F	Company	0.3%	373,135	$21,444,000	—	31 Dec 2020	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.3%	372,251	$21,393,000	—	31 Dec 2020	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.3%	364,700	$20,959,000	—	31 Dec 2020	13F
RHUMBLINE ADVISERS	13F	Company	0.29%	352,329	$20,248,000	—	31 Dec 2020	13F
PGGM Investments	13F	Individual	0.28%	345,099	$19,833,000	—	31 Dec 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.28%	341,267	$19,613,000	—	31 Dec 2020	13F
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	0.27%	336,729	$19,352,000	—	31 Dec 2020	13F
MORGAN STANLEY	13F	Company	0.27%	331,115	$19,029,000	—	31 Dec 2020	13F
REINHART PARTNERS, LLC.	13F	Company	0.27%	325,736	$18,720,000	—	31 Dec 2020	13F
Retirement Systems of Alabama	13F	Company	0.26%	320,807	$18,437,000	—	31 Dec 2020	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.26%	314,767	$18,089,000	—	31 Dec 2020	13F
ProShare Advisors LLC	13F	Company	0.25%	308,064	$17,704,000	—	31 Dec 2020	13F
Crestwood Advisors Group, LLC	13F	Company	0.24%	299,494	$17,212,000	—	31 Dec 2020	13F
JLB & ASSOCIATES INC	13F	Company	0.23%	285,943	$16,433,000	—	31 Dec 2020	13F
EATON VANCE MANAGEMENT	13F	Company	0.23%	280,006	$16,092,000	—	31 Dec 2020	13F

Institutional Holders of SEI INVESTMENTS CO - Common Stock (SEIC) as of Q1 2021

As of 31 Mar 2021, SEI INVESTMENTS CO - Common Stock (SEIC) was held by 434 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 98,014,219 shares. The largest 10 holders included LOOMIS SAYLES & CO L P, BlackRock Inc., VANGUARD GROUP INC, ATLANTA CAPITAL MANAGEMENT CO L L C, STATE STREET CORP, BANK OF AMERICA CORP /DE/, Beutel, Goodman & Co Ltd., GEODE CAPITAL MANAGEMENT, LLC, Bank of New York Mellon Corp, and GREAT WEST LIFE ASSURANCE CO /CAN/. This page lists 434 institutional shareholders reporting positions in this security for the Q1 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2021 vs Q4 2020 Across Filers

Q4 2020 holders

431

Q1 2021 holders

434

Holder diff

Investor	Q4 2020 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q4 2020 Value $	Q1 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.