MX Magnachip Semiconductor (MX) Insider Trading, Ownership & Congress Trades
Semiconductors & Electronics · Semiconductors & related devices · CIK 0001325702
C-suite buying · 1
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
45
13F, latest reported quarter
What the filings say about MX
Insiders, 180 days
+$318.5K net bought
1 buyer
Magnachip Semiconductor insider trades (Form 4)
Form 4 buys and sells (codes P and S). Grants, option exercises
and conversions excluded.
Over the last 180 days, MAGNACHIP SEMICONDUCTOR Corp insiders bought a net $318.5K of stock across 25 Form 4 purchases and sales, with 1 insider buying. Source: SEC Form 4 filings, as of 2026-10-28.
Insider
Filed
Shares
Value
Since filing
Context
- 2 earlier Form 4 trades (code P or S) here by this insider (2 buys), the last on Sep 23, 2026.
- The trade is 5.1% of the 388,750 shares held after it.
- No other insider bought within 30 days.
- 45 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer LEE CHAE bought about $64.4K of MX on Sep 24, 2026; 45 funds added in the latest 13F quarter.Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- The trade is 14.8% of the 338,750 shares held after it.
- No other insider bought within 30 days.
- 45 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer LEE CHAE bought about $158.5K of MX on Sep 23, 2026, the largest insider purchase at the company on our record; 45 funds added in the latest 13F quarter.Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- The trade is 8.1% of the 368,750 shares held after it.
- No other insider bought within 30 days.
- 45 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer LEE CHAE bought about $95.6K of MX on Sep 23, 2026, the largest insider purchase at the company since 2024; 45 funds added in the latest 13F quarter.Context
- 5 earlier Form 4 trades (code P or S) here by this insider (5 buys), the last on Mar 13, 2026.
- +7.7% median (+42.4% mean) 90-day return after 5 previous buys.
- The trade is 13.9% of the 158,200 shares held after it.
- No other insider bought within 30 days.
- 45 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director NATHAN GILBERT E bought about $63.1K of MX on Mar 16, 2026; 45 funds added in the latest 13F quarter.Context
- 4 earlier Form 4 trades (code P or S) here by this insider (4 buys), the last on Mar 12, 2026.
- -5.0% median (+22.6% mean) 90-day return after 4 previous buys.
- The trade is 9.5% of the 136,206 shares held after it.
- No other insider bought within 30 days.
- 45 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director NATHAN GILBERT E bought about $36.3K of MX on Mar 13, 2026; 45 funds added in the latest 13F quarter.25 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Seven facts, ranked against the sector ·
Rank is not a forecast
Insiders
net +$318.5K over 180 days
+$318.5K over 90 days
more than 95% of Semiconductors & Electronics
Congress
no House purchase disclosed in the last 12 months
Funds
45 funds bought in last quarter
below 76% of Semiconductors & Electronics
Revenue
-8.9% year over year
below 81% of Semiconductors & Electronics
Margin
-16.6% net margin
below 66% of Semiconductors & Electronics
Buybacks
$201 repurchased, FY to 2026-06-30
below 99% of Semiconductors & Electronics
Short interest
5.4% of the float short (float per yahoo 2026-10-26) · 1.0 days to cover · settled 2026-09-30
more than 52% of Semiconductors & Electronics
What changed in the last 30 days
Nothing new filed in the last 30 days
Watch MX
A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.
The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-23.3%12M
Insider buy
Indexed to 100, dividend-adjusted, not a price chart.
When a name files heavily, the largest trades are drawn first.
Who owns MX: institutional holders (13F)
13F holdings, latest reported quarter
1,615,488 sh
$7.6M
1,600,695 sh
$7.6M
1,501,438 sh
$7.1M
1,500,000 sh
$7.1M
1,397,759 sh
$6.6M
Congress trades in MX
No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.
Activist and 5% holders (13D/13G)
No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.
MX planned insider sales (Form 144)
No planned-sale notices
No insider has filed to sell. Watch this after a run-up.
MX mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
Ultra-Small Company Market Fund
$189.2K position · as of 2026-06-30
0.1%
VANGUARD STRATEGIC SMALL-CAP EQUITY FUND
$1.1M position · as of 2026-06-30
0.0%
Avantis U.S. Small Cap Equity ETF
$513.6K position · as of 2026-05-31
0.0%
State Street(R) SPDR(R) S&P(R) International Small Cap ETF
$135.7K position · as of 2026-06-30
0.0%
VOYA MULTI-MANAGER INTERNATIONAL SMALL CAP FUND
$72.6K position · as of 2026-07-31
0.0%
Avantis U.S. Small Cap Equity Fund
$11.4K position · as of 2026-05-31
0.0%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Executive pay vs shareholder return · Young-Joon Kim
CEO pay, headline and as actually paid, against the company's
return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2022
$7.0M
$2.1M
$1.6M
-19%
+37%
2021
$5.6M
$6.0M
$1.3M
+81%
+113%
2020
$3.0M
$2.9M
$746.4K
+16%
+51%
Tagged by the company under SEC Item 402(v). Returns are
cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders are net buyers of their own stock.
The record shows a net $318.5K bought by insiders over 180 days, 45 funds added last quarter. Each figure is a federal filing, dated the day it went public.
MX financials
Revenue growth
-8.9%
XBRL, annual
Net margin
-16.6%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$177.4M
four quarters, 2025-07-01 to 2026-06-30
Revenue, TTM MX
| FY Dec 2025 | $178.9M |
| FY Dec 2024 | $231.7M |
| FY Dec 2023 | $230.1M |
| FY Dec 2022 | $337.7M |
| FY Dec 2021 | $474.2M |
| Jun 2026 | $44.7M |
| Mar 2026 | $46.2M |
| Dec 2025 | $40.6M |
| Sep 2025 | $45.9M |
| Jun 2025 | $47.6M |
| Mar 2025 | $44.7M |
| Dec 2024 | $63.0M |
| Sep 2024 | $66.5M |
At each fiscal year end
Single quarter
Net margin, TTM
-17.3%
net income over revenue, 2025-07-01 to 2026-06-30
Net margin, TTM MX
| FY Dec 2025 | -16.6% |
| FY Dec 2024 | -23.4% |
| FY Dec 2023 | -15.9% |
| FY Dec 2022 | -2.4% |
| FY Dec 2021 | +12.0% |
| Jun 2026 | -10.8% |
| Mar 2026 | -10.1% |
| Dec 2025 | -19.9% |
| Sep 2025 | -28.5% |
| Jun 2025 | +0.7% |
| Mar 2025 | -19.9% |
| Dec 2024 | -25.8% |
| Sep 2024 | -14.5% |
At each fiscal year end
Single quarter
Free cash flow, TTM
-$54.2M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM MX
| FY Dec 2025 | -$54.2M |
| FY Dec 2024 | -$17.7M |
| FY Dec 2023 | -$10.0M |
| FY Dec 2022 | -$18.2M |
| FY Dec 2021 | $55.5M |
| Jun 2026 | -$5.8K |
| Mar 2026 | -$2.4K |
| Dec 2025 | -$4.8M |
| Sep 2025 | -$49.3M |
| Jun 2025 | -$37.0K |
| Mar 2025 | -$4.9K |
| Dec 2024 | $4.4M |
| Sep 2024 | -$15.5M |
At each fiscal year end
Single quarter
Debt to equity
0.18x
long-term 2026-06-30 plus current 2026-06-30; equity 2026-06-30
Debt to equity MX
| FY Dec 2025 | 0.18x |
| FY Dec 2024 | 0.40x |
| FY Dec 2023 | 0.24x |
| FY Dec 2022 | 0.19x |
| FY Dec 2021 | 0.18x |
| Jun 2026 | 0.18x |
| Mar 2026 | 0.18x |
| Dec 2025 | 0.18x |
| Sep 2025 | 0.48x |
| Jun 2025 | 0.44x |
| Mar 2025 | 0.41x |
| Dec 2024 | 0.40x |
| Sep 2024 | 0.38x |
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
-0.58x
TTM operating cash flow over long-term 2026-06-30 plus current 2026-06-30
Cash flow to debt MX
| FY Dec 2025 | -0.54x |
| FY Dec 2024 | -0.06x |
| FY Dec 2023 | -0.04x |
| FY Dec 2022 | 0.06x |
| FY Dec 2021 | 1.05x |
| Jun 2026 | -0.58x |
| Mar 2026 | -0.57x |
| Dec 2025 | -0.54x |
| Sep 2025 | -0.15x |
| Jun 2025 | -0.01x |
| Mar 2025 | -0.02x |
| Dec 2024 | -0.06x |
| Sep 2024 | -0.18x |
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
-12.3%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on equity MX
| FY Dec 2025 | -11.3% |
| FY Dec 2024 | -17.5% |
| FY Dec 2023 | -9.5% |
| FY Dec 2022 | -1.8% |
| FY Dec 2021 | +14.2% |
| Jun 2026 | -12.3% |
| Mar 2026 | -10.2% |
| Dec 2025 | -11.3% |
| Sep 2025 | -13.7% |
| Jun 2025 | -12.0% |
| Mar 2025 | -16.2% |
| Dec 2024 | -17.5% |
| Sep 2024 | -13.5% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
-8.8%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets MX
| FY Dec 2025 | -8.1% |
| FY Dec 2024 | -13.6% |
| FY Dec 2023 | -7.8% |
| FY Dec 2022 | -1.5% |
| FY Dec 2021 | +9.8% |
| Jun 2026 | -8.8% |
| Mar 2026 | -7.2% |
| Dec 2025 | -8.1% |
| Sep 2025 | -9.8% |
| Jun 2025 | -8.8% |
| Mar 2025 | -11.9% |
| Dec 2024 | -13.6% |
| Sep 2024 | -10.4% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on invested capital MX
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | +31.5% |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
-14.1%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed MX
| FY Dec 2025 | -11.2% |
| FY Dec 2024 | n/a |
| FY Dec 2023 | -13.7% |
| FY Dec 2022 | -1.1% |
| FY Dec 2021 | +18.6% |
| Jun 2026 | -14.1% |
| Mar 2026 | -12.8% |
| Dec 2025 | -11.2% |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | -9.5% |
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
P/E, trailing MX
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | 17.77x |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
$40.1M
market value at close 2026-10-26 on 2026-07-31 shares, plus long-term 2026-06-30 plus current 2026-06-30, minus cash 2026-06-30
Enterprise value MX
| FY Dec 2025 | $32.6M |
| FY Dec 2024 | $121.6M |
| FY Dec 2023 | $216.1M |
| FY Dec 2022 | $272.8M |
| FY Dec 2021 | $778.3M |
| Jun 2026 | $125.9M |
| Mar 2026 | $49.8M |
| Dec 2025 | $32.6M |
| Sep 2025 | $126.9M |
| Jun 2025 | $150.2M |
| Mar 2025 | $104.6M |
| Dec 2024 | $121.6M |
| Sep 2024 | $167.6M |
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
-62.6%
TTM free cash flow over market value at close 2026-10-26
FCF yield MX
| FY Dec 2025 | -59.1% |
| FY Dec 2024 | -11.9% |
| FY Dec 2023 | -3.4% |
| FY Dec 2022 | -4.4% |
| FY Dec 2021 | +5.7% |
| Jun 2026 | -31.4% |
| Mar 2026 | -53.1% |
| Dec 2025 | -59.1% |
| Sep 2025 | -40.0% |
| Jun 2025 | -7.8% |
| Mar 2025 | -10.4% |
| Dec 2024 | -11.9% |
| Sep 2024 | -17.0% |
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
PEG, trailing MX
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
| 2025-12 | 2024-12 | 2023-12 | 2022-12 | |
|---|---|---|---|---|
| Revenue | $178.9M | $231.7M | $230.1M | $337.7M |
| Gross profit | $31.4M | $38.7M | $51.6M | $101.3M |
| Operating income | -$35.9M | -$26.0M | -$57.6M | -$5.2M |
| Net income | -$29.7M | -$54.3M | -$36.6M | -$8.0M |
| EPS (diluted) | -0.82 | -1.44 | -0.89 | -0.18 |
| Operating cash flow | -$24.2M | -$6.1M | -$3.0M | $5.2M |
| Cash | $103.8M | $138.6M | $158.1M | $225.5M |
| Long-term debt | $44.6M | $27.2M | $0 | n/a |
| Buybacks | $4.4M | $12.9M | $51.8M | $14.0M |
| Dividends paid | $0 | $0 | $0 | n/a |
SEC XBRL, fiscal years, as known on 2026-10-28
MX Stock Sonar score 6/7 axes
Find similar shapesCompareMX ranks highest on insider conviction (86th percentile) and risk and compliance (53rd), and lowest on growth (19th), among Semiconductors & Electronics peers.
6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
MX filings, in plain words
Are Magnachip Semiconductor insiders buying or selling MX?
In the 180 days to 2026-10-28, Magnachip Semiconductor insiders were net buyers, a net $318.5K across purchases and sales reported on Form 4, by 1 buyer.
Read the full summary
In the 180 days to 2026-10-28, Magnachip Semiconductor insiders were net buyers of MX, a net $318.5K across purchases and sales reported on Form 4 by 1 buyer. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.
Explore insider trading and ownership data
Every company we track, ranked by each kind of filing
