There is a long list of 206 institutional holders of SIMO 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 SIMO by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-SIMO table below, the initial column indicates the name of each top institutional holder of SIMO, with a link to that fund's top holdings. The next columns indicate the amount of SIMO stock held by each of the institutional holders of SIMO, followed by the SIMO 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
Morgan Stanley	1,715,771	$105,125	12/31/2023
SIMO	1,715,771	$105,125	12/31/2023
Alpine Associates Management Inc.	955,514	$58,544	12/31/2023
SIMO	955,514	$58,544	12/31/2023
Millennium Management LLC	954,428	$58,478	12/31/2023
SIMO	954,428	$58,478	12/31/2023
Hawk Ridge Capital Management LP	944,559	$57,873	12/31/2023
SIMO	944,559	$57,873	12/31/2023
Reinhart Partners Inc.	736,371	$56,656	03/31/2024
SIMO	736,371	$56,656	03/31/2024
Wellington Management Group LLP	819,536	$50,213	12/31/2023
SIMO	819,536	$50,213	12/31/2023
Melqart Asset Management UK Ltd	783,761	$48,021	12/31/2023
SIMO	783,761	$48,021	12/31/2023
HBK Investments L P	766,600	$46,970	12/31/2023
SIMO	766,600	$46,970	12/31/2023
Kodai Capital Management LP	719,327	$44,073	12/31/2023
SIMO	719,327	$44,073	12/31/2023
Segantii Capital Management Ltd	697,673	$42,746	12/31/2023
SIMO	697,673	$42,746	12/31/2023
Adage Capital Partners GP L.L.C.	668,631	$40,967	12/31/2023
SIMO	668,631	$40,967	12/31/2023
Cooper Creek Partners Management LLC	667,463	$40,895	12/31/2023
SIMO	667,463	$40,895	12/31/2023
Citadel Advisors LLC		$39,184	12/31/2023
SIMO	631,432	$38,688	12/31/2023
Call	36,300	$2,224	12/31/2023
Put	28,200	$1,728	12/31/2023
Invesco Ltd.	625,350	$38,315	12/31/2023
SIMO	625,350	$38,315	12/31/2023
Pertento Partners LLP	605,469	$37,097	12/31/2023
SIMO	605,469	$37,097	12/31/2023
FMR LLC	584,501	$35,812	12/31/2023
SIMO	584,501	$35,812	12/31/2023
Massachusetts Financial Services Co. MA	530,714	$32,517	12/31/2023
SIMO	530,714	$32,517	12/31/2023
Acadian Asset Management LLC	511,054	$31,280	12/31/2023
SIMO	511,054	$31,280	12/31/2023
Jane Street Group LLC		$27,660	12/31/2023
SIMO	236,340	$14,481	12/31/2023
Call	232,200	$14,227	12/31/2023
Put	17,100	$1,048	12/31/2023
Balyasny Asset Management LLC	425,573	$26,075	12/31/2023
SIMO	425,573	$26,075	12/31/2023
UBS Group AG		$25,113	12/31/2023
SIMO	273,672	$16,768	12/31/2023
Call	136,200	$8,345	12/31/2023
Westfield Capital Management Co. LP	408,149	$25,007	12/31/2023
SIMO	408,149	$25,007	12/31/2023
Bank of Montreal Can	383,496	$23,620	12/31/2023
SIMO	383,496	$23,620	12/31/2023
Herald Investment Management Ltd	384,906	$23,572	12/31/2023
SIMO	384,906	$23,572	12/31/2023
Water Island Capital LLC	382,047	$23,408	12/31/2023
SIMO	382,047	$23,408	12/31/2023
Davidson Kempner Capital Management LP	372,717	$22,825	12/31/2023
SIMO	372,717	$22,825	12/31/2023
D. E. Shaw & Co. Inc.	328,533	$20,129	12/31/2023
SIMO	328,533	$20,129	12/31/2023
Heartland Advisors Inc.	327,875	$20,089	12/31/2023
SIMO	327,875	$20,089	12/31/2023
Clearline Capital LP	325,367	$19,935	12/31/2023
SIMO	325,367	$19,935	12/31/2023
Goldman Sachs Group Inc.	316,294	$19,379	12/31/2023
SIMO	316,294	$19,379	12/31/2023
Marshall Wace LLP	310,031	$18,996	12/31/2023
SIMO	310,031	$18,996	12/31/2023
Hudson Bay Capital Management LP	303,593	$18,601	12/31/2023
SIMO	303,593	$18,601	12/31/2023
Systematic Financial Management LP	278,297	$17,051	12/31/2023
SIMO	278,297	$17,051	12/31/2023
CastleKnight Management LP		$16,364	12/31/2023
SIMO	167,075	$10,237	12/31/2023
Call	100,000	$6,127	12/31/2023
Summit Partners Public Asset Management LLC		$15,238	12/31/2023
SIMO	218,700	$13,400	12/31/2023
Call	30,000	$1,838	12/31/2023
Farallon Capital Management LLC	246,500	$15,103	12/31/2023
SIMO	246,500	$15,103	12/31/2023
Levin Easterly Partners LLC	244,269	$14,966	12/31/2023
SIMO	244,269	$14,966	12/31/2023
Healthcare of Ontario Pension Plan Trust Fund	226,200	$13,859	12/31/2023
SIMO	226,200	$13,859	12/31/2023
Group One Trading L.P.		$13,817	12/31/2023
Call	353,300	$21,647	12/31/2023
Put	127,800	$7,830	12/31/2023
M&G Investment Management Ltd.	206,317	$12,585	12/31/2023
SIMO	206,317	$12,585	12/31/2023
Prospect Capital Advisors LLC	200,800	$12,303	12/31/2023
SIMO	200,800	$12,303	12/31/2023
TIG Advisors LLC	196,214	$12,022	12/31/2023
SIMO	196,214	$12,022	12/31/2023
Man Group plc	194,347	$11,908	12/31/2023
SIMO	194,347	$11,908	12/31/2023
State of Wisconsin Investment Board	178,609	$10,943	12/31/2023
SIMO	178,609	$10,943	12/31/2023
P Schoenfeld Asset Management LP	177,354	$10,866	12/31/2023
SIMO	177,354	$10,866	12/31/2023
Susquehanna International Group LLP		$10,110	12/31/2023
Call	249,400	$15,281	12/31/2023
Put	84,400	$5,171	12/31/2023
Grantham Mayo Van Otterloo & Co. LLC	156,200	$9,570	12/31/2023
SIMO	156,200	$9,570	12/31/2023
Bank of America Corp DE	146,232	$8,960	12/31/2023
SIMO	146,232	$8,960	12/31/2023
Nokomis Capital L.L.C.	136,465	$8,361	12/31/2023
SIMO	136,465	$8,361	12/31/2023
Kennedy Capital Management Inc.	128,520	$7,874	12/31/2023
SIMO	128,520	$7,874	12/31/2023