Shin Young Park

Insider

First SEC filing: Jan. 5, 2021 · Latest: Jan. 5, 2021

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

MX buying Aug. 25, 2025

Insider transactions

1 buys (P) 0 sells (S) Net: $28,700 + 39 non-open-market transactions below Avg return of open purchases vs now: 15.7% last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

39 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 1, 2026	MX	A	112,500	—	—	327,954 Direct	+52.22%	Acquired	(price as of 2026-08-21)
Dec. 31, 2025	MX	F	17,977	$2.55	$45,841	215,454 Direct	-7.70%	Disposed	30.2% (price as of 2026-08-21)
Dec. 31, 2025	MX	F	12,234	$2.55	$31,197	233,431 Direct	-4.98%	Disposed	30.2% (price as of 2026-08-21)
Dec. 31, 2025	MX	F	6,121	$2.55	$15,609	245,665 Direct	-2.43%	Disposed	30.2% (price as of 2026-08-21)
Aug. 25, 2025	MX	P	10,000	$2.87	$28,700	251,786 Direct	+4.14%	Acquired	15.7% (price as of 2026-08-21)
June 1, 2025	MX	A	55,104	—	—	55,104 Direct	—	Acquired	(price as of 2026-08-21)
June 1, 2025	MX	A	110,210	—	—	241,786 Direct	+83.76%	Acquired	(price as of 2026-08-21)
Dec. 31, 2024	MX	F	12,225	$4.02	$49,144	131,576 Direct	-8.50%	Disposed	-17.4% (price as of 2026-08-21)
Dec. 31, 2024	MX	F	6,117	$4.02	$24,590	143,801 Direct	-4.08%	Disposed	-17.4% (price as of 2026-08-21)
Dec. 31, 2024	MX	F	2,445	$4.02	$9,829	149,918 Direct	-1.60%	Disposed	-17.4% (price as of 2026-08-21)
June 1, 2024	MX	A	75,000	—	—	75,000 Direct	—	Acquired	(price as of 2026-08-21)
June 1, 2024	MX	A	75,000	—	—	152,363 Direct	+96.95%	Acquired	(price as of 2026-08-21)
March 12, 2024	MX	P	9,000	$5.56	$50,040	77,363 Direct	+13.17%	Acquired	-40.3% (price as of 2026-08-21)
Dec. 31, 2023	MX	F	6,063	$7.50	$45,472	68,363 Direct	-8.15%	Disposed	-55.7% (price as of 2026-08-21)
Dec. 31, 2023	MX	F	2,424	$7.50	$18,180	74,426 Direct	-3.15%	Disposed	-55.7% (price as of 2026-08-21)
Dec. 31, 2023	MX	F	1,085	$7.50	$8,138	76,850 Direct	-1.39%	Disposed	-55.7% (price as of 2026-08-21)
March 12, 2023	MX	F	1,521	$9.39	$14,282	77,935 Direct	-1.91%	Disposed	-64.6% (price as of 2026-08-21)
Feb. 16, 2023	MX	A	37,523	—	—	79,456 Direct	+89.48%	Acquired	(price as of 2026-08-21)
Dec. 31, 2022	MX	F	2,380	$9.39	$22,348	41,933 Direct	-5.37%	Disposed	-64.6% (price as of 2026-08-21)
Dec. 31, 2022	MX	F	1,066	$9.39	$10,010	44,313 Direct	-2.35%	Disposed	-64.6% (price as of 2026-08-21)
Dec. 31, 2022	MX	F	794	$9.39	$7,456	45,379 Direct	-1.72%	Disposed	-64.6% (price as of 2026-08-21)
March 12, 2022	MX	F	1,574	$16.30	$25,656	46,173 Direct	-3.30%	Disposed	-79.6% (price as of 2026-08-21)
Feb. 28, 2022	MX	A	15,000	—	—	47,747 Direct	+45.81%	Acquired	(price as of 2026-08-21)
Feb. 18, 2022	MX	F	136	$18.78	$2,554	32,747 Direct	-0.41%	Disposed	-82.3% (price as of 2026-08-21)
Feb. 18, 2022	MX	A	288	—	—	32,883 Direct	+0.88%	Acquired	(price as of 2026-08-21)
Feb. 18, 2022	MX	F	1,945	$18.78	$36,527	32,595 Direct	-5.63%	Disposed	-82.3% (price as of 2026-08-21)
Feb. 18, 2022	MX	A	4,118	—	—	34,540 Direct	+13.54%	Acquired	(price as of 2026-08-21)
Jan. 16, 2022	MX	F	237	$19.95	$4,728	30,422 Direct	-0.77%	Disposed	-83.4% (price as of 2026-08-21)
Dec. 31, 2021	MX	F	1,057	$20.97	$22,165	30,659 Direct	-3.33%	Disposed	-84.2% (price as of 2026-08-21)
Dec. 31, 2021	MX	F	787	$20.97	$16,503	31,716 Direct	-2.42%	Disposed	-84.2% (price as of 2026-08-21)
Dec. 31, 2021	MX	F	441	$20.97	$9,248	32,503 Direct	-1.34%	Disposed	-84.2% (price as of 2026-08-21)
March 12, 2021	MX	F	1,391	$23.27	$32,369	32,944 Direct	-4.05%	Disposed	-85.7% (price as of 2026-08-21)
March 1, 2021	MX	F	161	$19.44	$3,130	34,335 Direct	-0.47%	Disposed	-82.9% (price as of 2026-08-21)
Feb. 19, 2021	MX	A	6,713	—	—	34,496 Direct	+24.16%	Acquired	(price as of 2026-08-21)
Feb. 16, 2021	MX	F	1,475	$19.86	$29,294	27,783 Direct	-5.04%	Disposed	-83.3% (price as of 2026-08-21)
Feb. 16, 2021	MX	A	3,535	—	—	29,258 Direct	+13.74%	Acquired	(price as of 2026-08-21)
Jan. 16, 2021	MX	F	158	$18.18	$2,872	25,723 Direct	-0.61%	Disposed	-81.7% (price as of 2026-08-21)
Dec. 31, 2020	MX	F	636	$13.52	$8,599	25,881 Direct	-2.40%	Disposed	-75.4% (price as of 2026-08-21)
Dec. 31, 2020	MX	F	356	$13.52	$4,813	26,517 Direct	-1.32%	Disposed	-75.4% (price as of 2026-08-21)
May 7, 2020	MX	A	5,000	—	—	26,874 Direct	+22.86%	Acquired	(price as of 2026-08-21)
March 12, 2020	MX	A	10,000	—	—	21,874 Direct	+84.22%	Acquired	(price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 1, 2025	MX	Performance-Based Restricted Stock Units	Common Stock (55,104)	—	Jan. 31, 2028	55,104	Acquired
June 1, 2024	MX	Performance-Based Restricted Stock Units	Common Stock (75,000)	—	Jan. 31, 2027	75,000	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 4 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Jan. 5, 2021	MX	Common Stock	11,873	Direct
March 5, 2020	MX	Common Stock	11,874	Direct
March 5, 2020	MX	Stock Option (Right to Buy)→ Common Stock (1,000)	1,000	Direct
March 5, 2020	MX	Stock Option (Right to Buy)→ Common Stock (1,500)	1,500	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

MX

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$329,958	—	—	—	—	$36,502	$25,171	$1,187,340
2023	$284,497	$1,011	—	—	—	$23,313	$58,541	$1,227,998
2022	$312,048	$330,274	$673,400	—	—	$51,264	$41,548	$1,408,534

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.