MX · MAGNACHIP SEMICONDUCTOR Corp · Shareholders & Ownership

$2.36 +0.31 (+15.12%) At close · Nov 6 Play latest call Q2 2026 earnings call transcript

Market Cap

$78.13M

38.05M

Volume · Nov 6 1.82M Avg daily vol (3M) 974.08K

Every disclosed holder of MX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns MX

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	71	15,731,726	41.34%	Yes
Insiders (Forms 3, 4, 5)	11	6,283,951	16.51%	Yes
13D/G-only blocks	4	7,099,464	18.66%	Yes
Remaining	—	8,936,038	23.48%	Rest
Registered funds (N-PORT, not summed)	28	783,382	2.06%	No

Shares outstanding: 38,051,179, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of MX

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Amoruso Cristiano Insider CIK 2069371 · Aug 1, 2026 Director, issuer-wide	3,147,836	8.27%	+46,429	Aug 1, 2026	Director, issuer-wide
2	Byreforge LLC 13D CIK 2096092 · Unknown · Jan 14, 2026 not summed	3,072,779	8.08%	0	Jan 14, 2026	not summed
3	TORO 18 HOLDINGS LLC 13G CIK 1970265 · Unknown · Dec 23, 2024 Rule 13d-1(c), passive investor	2,970,139	7.81%	—	Dec 23, 2024	Rule 13d-1(c), passive investor
4	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,615,488	4.25%	+370,866	Jun 30, 2026	carried, not yet filed for the newest quarter
5	FourWorld Capital Management LLC 13F CIK 1770525 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,600,695	4.21%	-57,006	Jun 30, 2026	carried, not yet filed for the newest quarter
6	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,501,438	3.95%	+929,604	Jun 30, 2026	carried, not yet filed for the newest quarter
7	IMMERSION CORP 13G CIK 1058811 · Unknown · Mar 20, 2026 Rule 13d-1(c), passive investor	1,500,135	3.94%	—	Mar 20, 2026	Rule 13d-1(c), passive investor
8	OAKTREE CAPITAL MANAGEMENT LP 13F CIK 949509 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,500,000	3.94%	-1,349,858	Jun 30, 2026	carried, not yet filed for the newest quarter
9	Clearline Capital LP 13G CIK 1600136 · Unknown · Dec 31, 2025 Rule 13d-1(b), qualified institution	1,461,036	3.84%	-439,140	Dec 31, 2025	Rule 13d-1(b), qualified institution
10	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,397,759	3.67%	+1,238,153	Jun 30, 2026	carried, not yet filed for the newest quarter
11	Toronado Partners, LLC 13G CIK 1749611 · Registered investment adviser · Dec 31, 2023 Rule 13d-1(b), qualified institution, unconfirmed, last confirmed Dec 31, 2023	1,168,154	3.07%	—	Dec 31, 2023	Rule 13d-1(b), qualified institution, unconfirmed, last confirmed Dec 31, 2023
12	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	963,768	2.53%	+317,084	Jun 30, 2026	carried, not yet filed for the newest quarter
13	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	661,600	1.74%	+626,100	Jun 30, 2026	carried, not yet filed for the newest quarter
14	Kim Young-Joon Insider CIK 1576117 · Jun 1, 2025 Director, See Remarks, issuer-wide	590,970	1.55%	-28,787	Jun 1, 2025	Director, See Remarks, issuer-wide
15	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	544,125	1.43%	-166,319	Jun 30, 2026	carried, not yet filed for the newest quarter
16	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Sep 30, 2026	503,421	1.32%	+27,773	Sep 30, 2026
16.1	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	156,700	0.41%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
16.2	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	92,989	0.24%	+1,884	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
16.3	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	51,612	0.14%	-68,768	Jul 31, 2026	Dimensional ETF Trust, not summed
16.4	U.S. CORE EQUITY 2 PORTFOLIO Fund S000000980 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	8,656	0.02%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
16.5	U.S. VECTOR EQUITY PORTFOLIO Fund S000000982 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	6,844	0.02%	—	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
17	MARTINO CAMILLO Insider CIK 1256187 · Aug 15, 2026 Director, See Remarks, issuer-wide	450,661	1.18%	+6,764	Aug 15, 2026	Director, See Remarks, issuer-wide
18	NATHAN GILBERT E Insider CIK 1657622 · Aug 1, 2026 Director, issuer-wide	431,012	1.13%	—	Aug 1, 2026	Director, issuer-wide
19	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	412,849	1.09%	+316,129	Jun 30, 2026	carried, not yet filed for the newest quarter
20	LEE CHAE Insider CIK 1548322 · Sep 24, 2026 Director, Chief Executive Officer, issuer-wide	388,750	1.02%	+100,000	Sep 24, 2026	Director, Chief Executive Officer, issuer-wide
21	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	382,383	1.00%	+382,383	Jun 30, 2026	carried, not yet filed for the newest quarter
22	Park Shin Young Insider CIK 1805443 · Jun 1, 2026 See Remarks, issuer-wide	327,954	0.86%	+112,500	Jun 1, 2026	See Remarks, issuer-wide
23	Kim Theodore S Insider CIK 1592205 · Dec 31, 2024 See Remarks, issuer-wide	293,200	0.77%	-20,916	Dec 31, 2024	See Remarks, issuer-wide
24	Trexquant Investment LP 13F CIK 1633445 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	285,909	0.75%	+285,909	Jun 30, 2026	carried, not yet filed for the newest quarter
25	Lee Ilbok Insider CIK 1528705 · Jul 1, 2025 Director, issuer-wide	275,026	0.72%	+55,845	Jul 1, 2025	Director, issuer-wide
26	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	265,146	0.70%	-64,222	Jun 30, 2026	carried, not yet filed for the newest quarter
27	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	239,694	0.63%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
28	VANGUARD STRATEGIC SMALL-CAP EQUITY FUND Fund S000012432 · Registered fund · Jun 30, 2026 VANGUARD HORIZON FUNDS, not summed	239,694	0.63%	0	Jun 30, 2026	VANGUARD HORIZON FUNDS, not summed
29	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	236,422	0.62%	-56,518	Jun 30, 2026	carried, not yet filed for the newest quarter
30	XTX Topco Ltd 13F CIK 1828301 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	222,197	0.58%	+222,197	Jun 30, 2026	carried, not yet filed for the newest quarter
31	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	215,877	0.57%	+166,108	Jun 30, 2026	carried, not yet filed for the newest quarter
32	ODDO BHF ASSET MANAGEMENT SAS 13F CIK 1686970 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	215,098	0.57%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
33	BOOTHBAY FUND MANAGEMENT, LLC 13F CIK 1549230 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	200,081	0.53%	-7,125	Jun 30, 2026	carried, not yet filed for the newest quarter
34	GSA CAPITAL PARTNERS LLP 13F CIK 1362033 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	199,954	0.53%	-80,705	Jun 30, 2026	carried, not yet filed for the newest quarter
35	Almanack Investment Partners, LLC. 13F CIK 1680613 · Registered investment adviser · Sep 30, 2026	166,400	0.44%	+166,400	Sep 30, 2026
36	Caption Management, LLC 13F CIK 1706766 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	160,090	0.42%	+160,090	Jun 30, 2026	carried, not yet filed for the newest quarter
37	Lee Seunghoon Insider CIK 2023210 · Jun 1, 2026 See Remarks, issuer-wide	158,201	0.42%	+30,000	Jun 1, 2026	See Remarks, issuer-wide
38	Steward Partners Investment Advisory, LLC 13F CIK 1723397 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	153,347	0.40%	-43,655	Jun 30, 2026	carried, not yet filed for the newest quarter
39	Chung Kyo-Hwa Liz Insider CIK 1818303 · Aug 1, 2026 Director, issuer-wide	149,599	0.39%	+48,810	Aug 1, 2026	Director, issuer-wide
40	BLUEFIN CAPITAL MANAGEMENT, LLC 13F CIK 1144208 · Broker-dealer · Jun 30, 2026 carried, not yet filed for the newest quarter	147,698	0.39%	+147,698	Jun 30, 2026	carried, not yet filed for the newest quarter
41	GROUP ONE TRADING LLC 13F CIK 932540 · Broker-dealer · Jun 30, 2026 carried, not yet filed for the newest quarter	117,823	0.31%	+94,157	Jun 30, 2026	carried, not yet filed for the newest quarter
42	Virtu Financial LLC 13F CIK 1533964 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	114,969	0.30%	+114,969	Jun 30, 2026	carried, not yet filed for the newest quarter
43	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	111,043	0.29%	+22,969	Jun 30, 2026	carried, not yet filed for the newest quarter
44	ALGERT GLOBAL LLC 13F CIK 1275218 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	110,785	0.29%	+52,090	Jun 30, 2026	carried, not yet filed for the newest quarter
45	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	110,336	0.29%	-73,110	Jun 30, 2026	carried, not yet filed for the newest quarter
46	Federation des caisses Desjardins du Quebec 13F CIK 2022297 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	108,474	0.29%	+84,038	Jun 30, 2026	carried, not yet filed for the newest quarter
47	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	108,103	0.28%	+83,753	Jun 30, 2026	carried, not yet filed for the newest quarter
48	SILVERBACK ASSET MANAGEMENT LLC 13F CIK 1278960 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	100,000	0.26%	-120,000	Jun 30, 2026	carried, not yet filed for the newest quarter
49	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	95,843	0.25%	-104,800	Jun 30, 2026	carried, not yet filed for the newest quarter
50	TUDOR INVESTMENT CORP ET AL 13F CIK 923093 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	75,103	0.20%	+75,103	Jun 30, 2026	carried, not yet filed for the newest quarter

5 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 103 holders

Create a free account to page through every holder, filter by source and group by ultimate parent.

Key facts CIK 1325702 CUSIP 55933J203 13F (30d) 23 filings 15 filers Visit website Investor relations