Jonathan Yen-Wen Yu
CIK 1951849 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 3, 2023 · Latest: June 18, 2026
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
Insider transactions
0 buys (P)
11 sells (S)
Net:
$-4,833,128
+ 21 non-open-market transactions below
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
21 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 12, 2026 | IRON | S 10b5-1 | 804 | $82.64 | $66,443 | 54,324 Direct | -1.46% | Disposed | -5.3% (price as of 2026-08-21) |
| July 7, 2026 | IRON | S 10b5-1 | 100 | $82.50 | $8,250 | 54,324 Direct | -0.18% | Disposed | -5.1% (price as of 2026-08-21) |
| June 26, 2026 | IRON | S 10b5-1 | 300 | $72.50 | $21,750 | 54,324 Direct | -0.55% | Disposed | 8.0% (price as of 2026-08-21) |
| June 22, 2026 | IRON | S 10b5-1 | 9,700 | $72.66 | $704,802 | 54,324 Direct | -15.15% | Disposed | 7.7% (price as of 2026-08-21) |
| June 16, 2026 | IRON | S 10b5-1 | 6,961 | $69.92 | $486,713 | 54,324 Direct | -11.36% | Disposed | 12.0% (price as of 2026-08-21) |
| June 16, 2026 | IRON | S 10b5-1 | 11,651 | $68.76 | $801,123 | 61,285 Direct | -15.97% | Disposed | 13.9% (price as of 2026-08-21) |
| Feb. 17, 2026 | IRON | S | 3,231 | $62.86 | $203,101 | 54,324 Direct | -5.61% | Disposed | 24.5% (price as of 2026-08-21) |
| Nov. 11, 2025 | IRON | S 10b5-1 | 4,585 | $83.99 | $385,094 | 57,955 Direct | -7.33% | Disposed | -6.8% (price as of 2026-08-21) |
| Nov. 11, 2025 | IRON | S 10b5-1 | 8,015 | $83.15 | $666,447 | 62,540 Direct | -11.36% | Disposed | -5.8% (price as of 2026-08-21) |
| Nov. 11, 2025 | IRON | S 10b5-1 | 8,040 | $85.91 | $690,716 | 40,555 Direct | -16.54% | Disposed | -8.9% (price as of 2026-08-21) |
| Nov. 11, 2025 | IRON | S 10b5-1 | 9,360 | $85.33 | $798,689 | 48,595 Direct | -16.15% | Disposed | -8.3% (price as of 2026-08-21) |
| Feb. 18, 2025 | IRON | S | 1,610 | $54.58 | $87,874 | 40,555 Direct | -3.82% | Disposed | 43.4% (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 |
|---|---|---|---|---|---|---|---|
| Aug. 12, 2026 | IRON | Stock Option (Right to Buy) | Common Stock (804) | $13.50 | Dec. 28, 2032 | 804 | Disposed |
| July 7, 2026 | IRON | Stock Option (Right to Buy) | Common Stock (100) | $13.50 | Dec. 28, 2032 | 100 | Disposed |
| June 26, 2026 | IRON | Stock Option (Right to Buy) | Common Stock (300) | $13.50 | Dec. 28, 2032 | 300 | Disposed |
| June 22, 2026 | IRON | Stock Option (Right to Buy) | Common Stock (9,700) | $13.50 | Dec. 28, 2032 | 9,700 | Disposed |
| June 16, 2026 | IRON | Stock Option (Right to Buy) | Common Stock (13,351) | $9.86 | Sept. 13, 2031 | 13,351 | Disposed |
| June 16, 2026 | IRON | Stock Option (Right to Buy) | Common Stock (5,261) | $9.86 | Sept. 13, 2031 | 5,261 | Disposed |
| Feb. 10, 2026 | IRON | Stock Option (Right to Buy) | Common Stock (25,500) | $74.75 | Feb. 9, 2036 | 25,500 | Acquired |
| Nov. 11, 2025 | IRON | Stock Option (Right to Buy) | Common Stock (30,000) | $2.65 | Aug. 10, 2030 | 30,000 | Disposed |
| Feb. 10, 2025 | IRON | Stock Option (Right to Buy) | Common Stock (36,000) | $54.71 | Feb. 9, 2035 | 36,000 | Acquired |
| Jan. 10, 2024 | IRON | Stock Option (Right to Buy) | Common Stock (27,250) | $63.90 | Jan. 9, 2034 | 27,250 | Acquired |
| Dec. 29, 2022 | IRON | Stock Option (Right to Buy) | Common Stock (33,847) | $13.50 | Dec. 28, 2032 | 33,847 | 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. 3, 2023 | IRON | Stock Option (Right to Buy)→ Common Stock (37,941) | 37,941 | Direct |
| Jan. 3, 2023 | IRON | Stock Option (Right to Buy)→ Common Stock (16,380) | 16,380 | Direct |
| Jan. 3, 2023 | IRON | Stock Option (Right to Buy)→ Common Stock (7,014) | 7,014 | Direct |
| Jan. 3, 2023 | IRON | Stock Option (Right to Buy)→ Common Stock (45,302) | 45,302 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $507,000 | — | $1,313,040 | $1,360,603 | $294,060 | — | $10,500 | $3,485,203 |
| 2024 | $490,000 | — | $1,160,744 | $1,010,327 | $264,600 | — | $10,350 | $2,936,021 |
| 2022 | $355,884 | $20,000 | — | $277,221 | $163,438 | — | — | $816,543 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.