Magnachip Semiconductor MX Insider Ownership

NYSE MX
$2.96 -0.02 (-0.67%)
At close: Sep 11, 2026 · 4:00 PM EDT

Insider Holdings by Owner

3.33Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
0.346%
0% pp QoQ
Shares Held by Insiders
124.45K
filed for Sep 2026
0.00% QoQ
Shares Outstanding
35.93Mn
35,934,406 shares
Direct Holdings
124.45K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
16
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest
Average ownership
Peak ownership

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter
Net over range
Buying quarters

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 12, 2026, the three largest insider holders of MX are Young-Joon Kim (Director And Ceo, 590.97K shares), Camillo Martino (Director, 410.66K shares), Shinyoung Park (Chief Financial Officer, 327.95K shares).

Form 4 Holdings

Insiders Holding MX

Insiders 16
Shares held 3.33Mn
Of outstanding 9.27%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Young-Joon Kim Director And Ceo 590,970 0 590,970 17.7% 03 Jun, 2025
2 Camillo Martino Director 410,661 0 410,661 12.3% 18 Aug, 2026
3 Shinyoung Park Chief Financial Officer 327,954 0 327,954 9.8% 03 Jun, 2026
4 Theodore S Kim Officer 293,200 0 293,200 8.8% 03 Jan, 2025
5 Chae Lee Chief Executive Officer 288,750 0 288,750 8.7% 06 Jul, 2026
6 Ilbok Lee Director 275,026 0 275,026 8.3% 03 Jul, 2025
7 Gilbert E Nathan Director 265,682 0 265,682 8.0% 03 Aug, 2026
8 Seunghoon Lee Chief Of Manufacturing 158,201 0 158,201 4.8% 03 Jun, 2026
9 Woung Moo Lee Officer 151,903 0 151,903 4.6% 13 Jun, 2024
10 Gary W. Tanner Director 131,009 0 131,009 3.9% 05 Jun, 2023
11 Melvin L Keating Director 124,445 0 124,445 3.7% 05 Jun, 2023
12 Kyo-Hwa Liz Chung Director 100,789 0 100,789 3.0% 17 Feb, 2026
13 Cristiano Amoruso Director 75,057 0 75,057 2.3% 03 Aug, 2026
14 Jinseok Yang Officer 70,742 0 70,742 2.1% 04 Mar, 2025
15 Chan Ho Park Officer 42,012 0 42,012 1.3% 03 Jan, 2024
16 Young Soo Woo Officer 23,697 0 23,697 0.7% 04 Jan, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

668 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
15 Aug, 2026 Camillo Martino Director Acquired A 6,764 $0.00 $0 410,661 Direct
01 Aug, 2026 Camillo Martino Director Acquired A 39,286 $0.00 $0 403,897 Direct
01 Aug, 2026 Gilbert E Nathan Director Acquired A 51,191 $0.00 $0 265,682 Direct
01 Aug, 2026 Cristiano Amoruso Director Acquired A 46,429 $0.00 $0 75,057 Direct
01 Jul, 2026 Chae Lee Chief Executive Officer Acquired A 288,750 $0.00 $0 288,750 Direct
01 Jul, 2026 Chae Lee Chief Executive Officer Acquired A 148,750 $0.00 $0 148,750 Direct
01 Jun, 2026 Seunghoon Lee Chief Of Manufacturing Acquired A 30,000 $0.00 $0 158,201 Direct
01 Jun, 2026 Shinyoung Park Chief Financial Officer Acquired A 112,500 $0.00 $0 327,954 Direct
16 Mar, 2026 Gilbert E Nathan Director Acquired P 21,994 $2.87 $63.05K 158,200 Indirect
12 Mar, 2026 Gilbert E Nathan Director Acquired P 25,000 $2.75 $68.68K 123,200 Indirect
13 Mar, 2026 Gilbert E Nathan Director Acquired P 13,006 $2.79 $36.25K 136,206 Indirect
15 Feb, 2026 Kyo-Hwa Liz Chung Director Acquired A 2,946 $0.00 $0 100,789 Direct
15 Feb, 2026 Cristiano Amoruso Director Acquired A 28,628 $0.00 $0 28,628 Direct
15 Feb, 2026 Gilbert E Nathan Director Acquired A 1,478 $0.00 $0 214,491 Direct
15 Nov, 2025 Kyo-Hwa Liz Chung Director Acquired A 3,160 $0.00 $0 97,843 Direct
15 Nov, 2025 Gilbert E Nathan Director Acquired A 6,320 $0.00 $0 213,013 Direct
01 Oct, 2025 Camillo Martino Director, Officer Acquired A 105,484 $0.00 $0 364,611 Direct
22 Aug, 2025 Camillo Martino Director, Officer Acquired P 30,000 $2.84 $85.29K 259,127 Direct
01 Jul, 2025 Gilbert E Nathan Director Acquired A 50,650 $0.00 $0 206,693 Direct
01 Jul, 2025 Camillo Martino Director Acquired A 53,247 $0.00 $0 229,127 Direct