There is a long list of 247 institutional holders of SEM within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of SEM by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-SEM table below, the initial column indicates the name of each top institutional holder of SEM, with a link to that fund's top holdings. The next columns indicate the amount of SEM stock held by each of the institutional holders of SEM, followed by the SEM position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Price T Rowe Associates Inc. MD	17,111,615	$402,124	12/31/2023
SEM	17,111,615	$402,124	12/31/2023
BlackRock Inc.	16,843,479	$395,822	12/31/2023
SEM	16,843,479	$395,822	12/31/2023
Vanguard Group Inc.	12,347,798	$290,173	12/31/2023
SEM	12,347,798	$290,173	12/31/2023
T. Rowe Price Investment Management Inc.	5,964,606	$140,169	12/31/2023
SEM	5,964,606	$140,169	12/31/2023
Dimensional Fund Advisors LP	4,431,681	$104,147	12/31/2023
SEM	4,431,681	$104,147	12/31/2023
State Street Corp	4,179,893	$98,227	12/31/2023
SEM	4,179,893	$98,227	12/31/2023
Camber Capital Management LP	3,400,000	$79,900	12/31/2023
SEM	3,400,000	$79,900	12/31/2023
Geode Capital Management LLC	2,195,605	$51,603	12/31/2023
SEM	2,195,605	$51,603	12/31/2023
Principal Financial Group Inc.	2,146,116	$50,434	12/31/2023
SEM	2,146,116	$50,434	12/31/2023
Bank of New York Mellon Corp	1,906,616	$44,805	12/31/2023
SEM	1,906,616	$44,805	12/31/2023
Victory Capital Management Inc.	1,739,361	$40,875	12/31/2023
SEM	1,739,361	$40,875	12/31/2023
Invesco Ltd.	1,684,256	$39,580	12/31/2023
SEM	1,684,256	$39,580	12/31/2023
LSV Asset Management	1,492,332	$35,070	12/31/2023
SEM	1,492,332	$35,070	12/31/2023
Charles Schwab Investment Management Inc.	1,467,109	$34,477	12/31/2023
SEM	1,467,109	$34,477	12/31/2023
Norges Bank	1,460,432	$34,320	12/31/2023
SEM	1,460,432	$34,320	12/31/2023
Morgan Stanley	1,345,772	$31,626	12/31/2023
SEM	1,345,772	$31,626	12/31/2023
Northern Trust Corp	1,239,458	$29,127	12/31/2023
SEM	1,239,458	$29,127	12/31/2023
Nuveen Asset Management LLC	1,055,616	$24,807	12/31/2023
SEM	1,055,616	$24,807	12/31/2023
Bank of America Corp DE	904,258	$21,250	12/31/2023
SEM	904,258	$21,250	12/31/2023
Arrowstreet Capital Limited Partnership	637,154	$14,973	12/31/2023
SEM	637,154	$14,973	12/31/2023
Marshall Wace LLP	528,841	$12,428	12/31/2023
SEM	528,841	$12,428	12/31/2023
Goldman Sachs Group Inc.	475,456	$11,173	12/31/2023
SEM	475,456	$11,173	12/31/2023
Hood River Capital Management LLC	445,350	$10,466	12/31/2023
SEM	445,350	$10,466	12/31/2023
Smith Graham & Co. Investment Advisors LP	409,945	$9,634	12/31/2023
SEM	409,945	$9,634	12/31/2023
Royce & Associates LP	358,242	$8,419	12/31/2023
SEM	358,242	$8,419	12/31/2023
Raymond James & Associates	274,079	$8,263	03/31/2024
SEM	274,079	$8,263	03/31/2024
JPMorgan Chase & Co.	350,149	$8,229	12/31/2023
SEM	350,149	$8,229	12/31/2023
Prudential Financial Inc.	349,085	$8,203	12/31/2023
SEM	349,085	$8,203	12/31/2023
Ameriprise Financial Inc.	346,819	$8,140	12/31/2023
SEM	346,819	$8,140	12/31/2023
Rhumbline Advisers	317,974	$7,472	12/31/2023
SEM	317,974	$7,472	12/31/2023
Clough Capital Partners L P	317,100	$7,452	12/31/2023
SEM	317,100	$7,452	12/31/2023
Qube Research & Technologies Ltd	316,539	$7,439	12/31/2023
SEM	316,539	$7,439	12/31/2023
Foundry Partners LLC	304,690	$7,160	12/31/2023
SEM	304,690	$7,160	12/31/2023
Two Sigma Investments LP	300,939	$7,072	12/31/2023
SEM	300,939	$7,072	12/31/2023
Legal & General Group Plc	300,155	$7,054	12/31/2023
SEM	300,155	$7,054	12/31/2023
Wells Fargo & Company MN	257,915	$6,061	12/31/2023
SEM	257,915	$6,061	12/31/2023
Sivik Global Healthcare LLC	250,000	$5,875	12/31/2023
SEM	250,000	$5,875	12/31/2023
First Eagle Investment Management LLC	240,047	$5,641	12/31/2023
SEM	240,047	$5,641	12/31/2023
Hotchkis & Wiley Capital Management LLC	228,670	$5,374	12/31/2023
SEM	228,670	$5,374	12/31/2023
Public Sector Pension Investment Board	218,173	$5,127	12/31/2023
SEM	218,173	$5,127	12/31/2023
CX Institutional	168,872	$5,091	03/31/2024
SEM	168,872	$5,091	03/31/2024
Swiss National Bank	213,000	$5,006	12/31/2023
SEM	213,000	$5,006	12/31/2023
Envestnet Asset Management Inc.	210,960	$4,958	12/31/2023
SEM	210,960	$4,958	12/31/2023
FMR LLC	199,449	$4,687	12/31/2023
SEM	199,449	$4,687	12/31/2023
Barclays PLC	174,003	$4,089	12/31/2023
SEM	174,003	$4,089	12/31/2023
D. E. Shaw & Co. Inc.	171,183	$4,023	12/31/2023
SEM	171,183	$4,023	12/31/2023
State of Wisconsin Investment Board	168,606	$3,962	12/31/2023
SEM	168,606	$3,962	12/31/2023
Algert Global LLC	168,240	$3,954	12/31/2023
SEM	168,240	$3,954	12/31/2023
Twinbeech Capital LP	168,026	$3,949	12/31/2023
SEM	168,026	$3,949	12/31/2023
Knights of Columbus Asset Advisors LLC	167,822	$3,944	12/31/2023
SEM	167,822	$3,944	12/31/2023