Magnachip Semiconductor MX Institutional Ownership

NYSE MX

$2.96 -0.02 (-0.67%)

At close: Sep 11, 2026 · 4:00 PM EDT

Institutions by Trading Activity

77 Institutions

Increased 48 62.3%

Unchanged 6 7.8%

Reduced 23 29.9%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

42.97%

▼-18.81 pp QoQ

Shares Held by Institutions

15.66Mn

of 36.45Mn outstanding

▲+1.90% QoQ

Shares Outstanding

36.45Mn

20.79Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+5 vs prior quarter

Net Shares Added (QoQ)

+292.55K

accumulated since last quarter

Value of Holdings

$46.36Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

MAGNACHIP SEMICONDUCTOR Corp (NYSE:MX) has 77 institutional investors with active 13F positions as of June 2026.

Their combined ownership stood at 43.0% of outstanding shares in June 2026, down from 61.8% in March 2026.
They increased total shares held in Magnachip Semiconductor by 1.9% from last quarter, and the number of investors in MX decreased 15.38% annually.
Among the 77 funds, 48 bought more Magnachip Semiconductor shares, 23 sold down, and 6 held their ground.
In total, institutional investors held 15.66Mn shares in Magnachip Semiconductor as of June 2026, up by 292.55K shares quarter on quarter, and down 7.37Mn shares year over year.
As of June 30, 2026, MARSHALL WACE, LLP held the largest stake in Magnachip Semiconductor with 1.62Mn shares, accounting for 4.43% of total shares outstanding.
The biggest buyers of Magnachip Semiconductor for the quarter ending June 2026 included D. E. Shaw & Co., Inc. (1.24Mn), TWO SIGMA INVESTMENTS, LP (929.6K), RENAISSANCE TECHNOLOGIES LLC (626.1K), Qube Research & Technologies Ltd (382.38K), MARSHALL WACE, LLP (370.87K).
Top sellers of MX stock for the quarter ending June 2026 included OAKTREE CAPITAL MANAGEMENT LP (4.2Mn), BlackRock, Inc. (195.22K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (187.75K), Morgan Stanley (166.32K), SILVERBACK ASSET MANAGEMENT LLC (120.0K).
Per Business Quant data, the top 10 holders of Magnachip Semiconductor for the quarter ending June 2026 are MARSHALL WACE, LLP (1.62Mn), FourWorld Capital Management LLC (1.6Mn), TWO SIGMA INVESTMENTS, LP (1.5Mn), OAKTREE CAPITAL MANAGEMENT LP (1.5Mn), D. E. Shaw & Co., Inc. (1.4Mn), ACADIAN ASSET MANAGEMENT LLC (963.77K), RENAISSANCE TECHNOLOGIES LLC (661.6K), Morgan Stanley (544.12K), DIMENSIONAL FUND ADVISORS LP (475.65K), Connor, Clark & Lunn Investment Management Ltd. (412.85K).

Form 13F Holdings

77 Institutional Holders

Report period 30 Jun, 2026

Total shares held 15.66Mn

Of outstanding 42.97%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	MARSHALL WACE, LLP	0001318757	1,615,488	4.43%	▲370,866	+29.80%	$7.64Mn
2	FourWorld Capital Management LLC	0001770525	1,600,695	4.39%	▼57,006	-3.44%	$7.57Mn
3	TWO SIGMA INVESTMENTS, LP	0001179392	1,501,438	4.12%	▲929,604	+162.57%	$7.10Mn
4	OAKTREE CAPITAL MANAGEMENT LP	0000949509	1,500,000	4.11%	▼4,199,716	-73.68%	$7.10Mn
5	D. E. Shaw & Co., Inc.	0001009207	1,397,759	3.83%	▲1,238,153	+775.76%	$6.61Mn
6	ACADIAN ASSET MANAGEMENT LLC	0000916542	963,768	2.64%	▲317,084	+49.03%	$4.55K
7	RENAISSANCE TECHNOLOGIES LLC	0001037389	661,600	1.81%	▲626,100	+1,763.66%	$3.13Mn
8	Morgan Stanley	0000895421	544,125	1.49%	▼166,319	-23.41%	$2.57Mn
9	DIMENSIONAL FUND ADVISORS LP	0000354204	475,648	1.30%	▼73,458	-13.38%	$2.25Mn
10	Connor, Clark & Lunn Investment Management Ltd.	0001596800	412,849	1.13%	▲316,129	+326.85%	$1.95Mn
11	Qube Research & Technologies Ltd	0001729829	382,383	1.05%	▲382,383	0.00%	$1.81Mn
12	Trexquant Investment LP	0001633445	285,909	0.78%	▲285,909	0.00%	$1.35Mn
13	BNP PARIBAS FINANCIAL MARKETS	0001166588	265,146	0.73%	▼64,222	-19.50%	$1.25Mn
14	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	239,694	0.66%	0	0.00%	$1.13Mn
15	MILLENNIUM MANAGEMENT LLC	0001273087	236,422	0.65%	▼56,518	-19.29%	$1.12Mn
16	XTX Topco Ltd	0001828301	222,197	0.61%	▲222,197	0.00%	$1.05Mn
17	JANE STREET GROUP, LLC	0001595888	215,877	0.59%	▲166,108	+333.76%	$1.02Mn
18	ODDO BHF ASSET MANAGEMENT SAS	0001686970	215,098	0.59%	0	0.00%	$1.02Mn
19	BOOTHBAY FUND MANAGEMENT, LLC	0001549230	200,081	0.55%	▼7,125	-3.44%	$946.38K
20	GSA CAPITAL PARTNERS LLP	0001362033	199,954	0.55%	▼80,705	-28.76%	$946

Showing 1 to 20 of 77 holders