Derrick Sung
Insider
First SEC filing: Nov. 10, 2025 · Latest: Nov. 10, 2025
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 1, 2025 | LUNG | A | 1,200,000 | · | · | 1,335,319 Direct | +886.79% | Acquired | (price as of 2026-10-02) |
| Dec. 1, 2025 | LUNG | A | 400,000 | · | · | 400,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 1, 2023 | LUNG | S | 3,120 | $10.00 | $31,200 | 391,041 Direct | -0.79% | Disposed | -81.7% (price as of 2026-10-02) |
| Sept. 1, 2023 | LUNG | S | 701 | $10.01 | $7,017 | 394,161 Direct | -0.18% | Disposed | -81.7% (price as of 2026-10-02) |
| Sept. 1, 2023 | LUNG | S | 398 | $10.01 | $3,984 | 394,862 Direct | -0.10% | Disposed | -81.7% (price as of 2026-10-02) |
| June 1, 2023 | LUNG | S | 3,122 | $11.49 | $35,872 | 395,260 Direct | -0.78% | Disposed | -84.1% (price as of 2026-10-02) |
| June 1, 2023 | LUNG | S | 701 | $11.49 | $8,054 | 398,382 Direct | -0.18% | Disposed | -84.1% (price as of 2026-10-02) |
| June 1, 2023 | LUNG | S | 399 | $11.48 | $4,581 | 399,083 Direct | -0.10% | Disposed | -84.1% (price as of 2026-10-02) |
| March 1, 2023 | LUNG | A | 94,500 | · | · | 94,500 Direct | · | Acquired | (price as of 2026-10-02) |
| March 1, 2023 | LUNG | A | 138,000 | · | · | 399,482 Direct | +52.78% | Acquired | (price as of 2026-10-02) |
| March 1, 2023 | LUNG | S | 806 | $11.03 | $8,890 | 261,482 Direct | -0.31% | Disposed | -83.4% (price as of 2026-10-02) |
| March 1, 2023 | LUNG | S | 458 | $11.03 | $5,052 | 262,288 Direct | -0.17% | Disposed | -83.4% (price as of 2026-10-02) |
| Dec. 1, 2022 | LUNG | S | 387 | $5.93 | $2,295 | 263,428 Direct | -0.15% | Disposed | -69.1% (price as of 2026-10-02) |
| Dec. 1, 2022 | LUNG | S | 682 | $5.93 | $4,044 | 262,746 Direct | -0.26% | Disposed | -69.1% (price as of 2026-10-02) |
| Nov. 14, 2022 | LUNG | M | 10,000 | · | · | 5,000 Direct | -66.67% | Disposed | (price as of 2026-10-02) |
| Nov. 14, 2022 | LUNG | M | 10,000 | $2.20 | $22,000 | 263,815 Direct | +3.94% | Acquired | -16.8% (price as of 2026-10-02) |
| Sept. 1, 2022 | LUNG | S | 690 | $17.87 | $12,330 | 253,815 Direct | -0.27% | Disposed | -89.8% (price as of 2026-10-02) |
| Sept. 1, 2022 | LUNG | S | 392 | $17.87 | $7,005 | 254,505 Direct | -0.15% | Disposed | -89.8% (price as of 2026-10-02) |
| June 1, 2022 | LUNG | S | 679 | $18.05 | $12,256 | 254,897 Direct | -0.27% | Disposed | -89.9% (price as of 2026-10-02) |
| June 1, 2022 | LUNG | S | 386 | $18.05 | $6,967 | 255,576 Direct | -0.15% | Disposed | -89.9% (price as of 2026-10-02) |
| March 1, 2022 | LUNG | A | 68,700 | · | · | 68,700 Direct | · | Acquired | (price as of 2026-10-02) |
| March 1, 2022 | LUNG | A | 31,000 | · | · | 255,962 Direct | +13.78% | Acquired | (price as of 2026-10-02) |
| March 1, 2022 | LUNG | S | 458 | $25.91 | $11,867 | 224,962 Direct | -0.20% | Disposed | -92.9% (price as of 2026-10-02) |
| Dec. 15, 2021 | LUNG | S 10b5-1 | 24 | $31.58 | $758 | 225,420 Direct | -0.01% | Disposed | -94.2% (price as of 2026-10-02) |
| Dec. 15, 2021 | LUNG | S 10b5-1 | 2,976 | $30.52 | $90,828 | 225,444 Direct | -1.30% | Disposed | -94.0% (price as of 2026-10-02) |
| Dec. 14, 2021 | LUNG | S 10b5-1 | 3,000 | $32.89 | $98,670 | 228,420 Direct | -1.30% | Disposed | -94.4% (price as of 2026-10-02) |
| Dec. 1, 2021 | LUNG | S | 383 | $32.73 | $12,536 | 231,420 Direct | -0.17% | Disposed | -94.4% (price as of 2026-10-02) |
| Sept. 21, 2021 | LUNG | S 10b5-1 | 3,000 | $37.50 | $112,500 | 231,803 Direct | -1.28% | Disposed | -95.1% (price as of 2026-10-02) |
| Sept. 20, 2021 | LUNG | S 10b5-1 | 115 | $37.96 | $4,365 | 234,803 Direct | -0.05% | Disposed | -95.2% (price as of 2026-10-02) |
| Sept. 20, 2021 | LUNG | S 10b5-1 | 2,885 | $37.33 | $107,697 | 234,918 Direct | -1.21% | Disposed | -95.1% (price as of 2026-10-02) |
| Sept. 1, 2021 | LUNG | S | 383 | $40.09 | $15,354 | 237,803 Direct | -0.16% | Disposed | -95.4% (price as of 2026-10-02) |
| June 1, 2021 | LUNG | A | 17,600 | · | · | 238,186 Direct | +7.98% | Acquired | (price as of 2026-10-02) |
| June 1, 2021 | LUNG | A | 39,900 | · | · | 39,900 Direct | · | Acquired | (price as of 2026-10-02) |
| April 6, 2021 | LUNG | S 10b5-1 | 600 | $48.33 | $28,998 | 218,659 Direct | -0.27% | Disposed | -96.2% (price as of 2026-10-02) |
| April 6, 2021 | LUNG | S 10b5-1 | 1,575 | $47.79 | $75,269 | 219,259 Direct | -0.71% | Disposed | -96.2% (price as of 2026-10-02) |
| April 6, 2021 | LUNG | S 10b5-1 | 2,825 | $46.49 | $131,334 | 220,834 Direct | -1.26% | Disposed | -96.1% (price as of 2026-10-02) |
| April 5, 2021 | LUNG | S 10b5-1 | 220 | $48.56 | $10,683 | 223,659 Direct | -0.10% | Disposed | -96.2% (price as of 2026-10-02) |
| April 5, 2021 | LUNG | S 10b5-1 | 4,780 | $47.56 | $227,337 | 223,879 Direct | -2.09% | Disposed | -96.2% (price as of 2026-10-02) |
| March 1, 2019 | IRTC | F | 1,081 | $97.34 | $105,225 | 25,902 Direct | -4.01% | Disposed | 13.4% (price as of 2026-10-02) |
| Feb. 27, 2019 | IRTC | A | 1,725 | · | · | 26,983 Direct | +6.83% | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2019 | IRTC | A | 1,725 | · | · | 26,983 Direct | +6.83% | Acquired | (price as of 2026-10-02) |
| Jan. 30, 2019 | IRTC | M | 2,000 | · | · | 7,875 Direct | -20.25% | Disposed | (price as of 2026-10-02) |
| Jan. 30, 2019 | IRTC | S 10b5-1 | 2,000 | $84.00 | $168,000 | 25,258 Direct | -7.34% | Disposed | 31.4% (price as of 2026-10-02) |
| Jan. 30, 2019 | IRTC | M 10b5-1 | 2,000 | $35.25 | $70,500 | 27,258 Direct | +7.92% | Acquired | 213.1% (price as of 2026-10-02) |
| Jan. 29, 2019 | IRTC | M | 1,057 | · | · | 9,875 Direct | -9.67% | Disposed | (price as of 2026-10-02) |
| Jan. 29, 2019 | IRTC | S 10b5-1 | 1,057 | $84.03 | $88,820 | 25,258 Direct | -4.02% | Disposed | 31.3% (price as of 2026-10-02) |
| Jan. 29, 2019 | IRTC | M 10b5-1 | 1,057 | $35.25 | $37,259 | 26,315 Direct | +4.18% | Acquired | 213.1% (price as of 2026-10-02) |
| Jan. 28, 2019 | IRTC | M | 6,000 | · | · | 87,091 Direct | -6.45% | Disposed | (price as of 2026-10-02) |
| Jan. 28, 2019 | IRTC | M | 3,068 | · | · | 10,932 Direct | -21.91% | Disposed | (price as of 2026-10-02) |
| Jan. 28, 2019 | IRTC | S 10b5-1 | 9,068 | $84.04 | $762,075 | 25,258 Direct | -26.42% | Disposed | 31.3% (price as of 2026-10-02) |
| Jan. 28, 2019 | IRTC | M 10b5-1 | 3,068 | $35.25 | $108,147 | 34,326 Direct | +9.82% | Acquired | 213.1% (price as of 2026-10-02) |
| Jan. 28, 2019 | IRTC | M 10b5-1 | 6,000 | $6.35 | $38,100 | 31,258 Direct | +23.75% | Acquired | 1638.1% (price as of 2026-10-02) |
| Nov. 5, 2018 | IRTC | M | 5,800 | · | · | 93,091 Direct | -5.87% | Disposed | (price as of 2026-10-02) |
| Nov. 5, 2018 | IRTC | M | 5,800 | $6.35 | $36,830 | 25,258 Direct | +29.81% | Acquired | 1638.1% (price as of 2026-10-02) |
| Oct. 16, 2018 | IRTC | M | 10,000 | · | · | 98,891 Direct | -9.18% | Disposed | (price as of 2026-10-02) |
| Oct. 16, 2018 | IRTC | S 10b5-1 | 10,000 | $88.01 | $880,100 | 19,458 Direct | -33.95% | Disposed | 25.4% (price as of 2026-10-02) |
| Oct. 16, 2018 | IRTC | M 10b5-1 | 10,000 | $6.35 | $63,500 | 29,458 Direct | +51.39% | Acquired | 1638.1% (price as of 2026-10-02) |
| Oct. 9, 2018 | IRTC | M | 10,000 | · | · | 108,891 Direct | -8.41% | Disposed | (price as of 2026-10-02) |
| Oct. 9, 2018 | IRTC | S 10b5-1 | 10,000 | $83.10 | $831,000 | 19,458 Direct | -33.95% | Disposed | 32.8% (price as of 2026-10-02) |
| Oct. 9, 2018 | IRTC | M 10b5-1 | 10,000 | $6.35 | $63,500 | 29,458 Direct | +51.39% | Acquired | 1638.1% (price as of 2026-10-02) |
| Sept. 18, 2018 | IRTC | M | 2,800 | · | · | 118,891 Direct | -2.30% | Disposed | (price as of 2026-10-02) |
| Sept. 18, 2018 | IRTC | M | 2,800 | $6.35 | $17,780 | 19,458 Direct | +16.81% | Acquired | 1638.1% (price as of 2026-10-02) |
| Aug. 2, 2018 | IRTC | M | 10,000 | · | · | 121,691 Direct | -7.59% | Disposed | (price as of 2026-10-02) |
| Aug. 2, 2018 | IRTC | S 10b5-1 | 10,000 | $82.01 | $820,100 | 16,658 Direct | -37.51% | Disposed | 34.6% (price as of 2026-10-02) |
| Aug. 2, 2018 | IRTC | M 10b5-1 | 10,000 | $6.35 | $63,500 | 26,658 Direct | +60.03% | Acquired | 1638.1% (price as of 2026-10-02) |
| July 31, 2018 | IRTC | M | 2,800 | · | · | 131,691 Direct | -2.08% | Disposed | (price as of 2026-10-02) |
| July 31, 2018 | IRTC | M | 2,800 | $6.35 | $17,780 | 16,658 Direct | +20.20% | Acquired | 1638.1% (price as of 2026-10-02) |
| May 18, 2018 | IRTC | M | 10,000 | · | · | 134,491 Direct | -6.92% | Disposed | (price as of 2026-10-02) |
| May 18, 2018 | IRTC | S 10b5-1 | 10,000 | $70.00 | $700,000 | 13,858 Direct | -41.91% | Disposed | 57.7% (price as of 2026-10-02) |
| May 18, 2018 | IRTC | M 10b5-1 | 10,000 | $6.35 | $63,500 | 23,858 Direct | +72.16% | Acquired | 1638.1% (price as of 2026-10-02) |
| March 1, 2018 | IRTC | F | 683 | $62.24 | $42,510 | 13,858 Direct | -4.70% | Disposed | 77.3% (price as of 2026-10-02) |
| Feb. 27, 2018 | IRTC | A | 8,000 | · | · | 8,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2018 | IRTC | A | 3,700 | · | · | 14,541 Direct | +34.13% | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2017 | IRTC | A | 14,000 | · | · | 14,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2017 | IRTC | A | 7,900 | · | · | 7,900 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Dec. 1, 2025 | LUNG | Performance Stock Units | Common Stock | · | Dec. 1, 2028 | 400,000 | Acquired |
| March 1, 2023 | LUNG | Employee Stock Option (right to buy) | Common Stock | $11.48 | Feb. 28, 2033 | 94,500 | Acquired |
| Nov. 14, 2022 | LUNG | Employee Stock Option (right to buy) | Common Stock | $2.20 | Aug. 27, 2030 | 10,000 | Disposed |
| March 1, 2022 | LUNG | Employee Stock Option (right to buy) | Common Stock | $26.56 | Feb. 29, 2032 | 68,700 | Acquired |
| June 1, 2021 | LUNG | Employee Stock Option (right to buy) | Common Stock | $43.40 | May 31, 2031 | 39,900 | Acquired |
| Jan. 30, 2019 | IRTC | Employee Stock Option (right to buy) | Common Stock | $35.25 | Feb. 16, 2027 | 2,000 | Disposed |
| Jan. 29, 2019 | IRTC | Employee Stock Option (right to buy) | Common Stock | $35.25 | Feb. 16, 2027 | 1,057 | Disposed |
| Jan. 28, 2019 | IRTC | Employee Stock Option (right to buy) | Common Stock | $6.35 | June 15, 2025 | 6,000 | Disposed |
| Jan. 28, 2019 | IRTC | Employee Stock Option (right to buy) | Common Stock | $35.25 | Feb. 16, 2027 | 3,068 | Disposed |
| Nov. 5, 2018 | IRTC | Employee Stock Option (right to buy) | Common Stock | $6.35 | June 15, 2025 | 5,800 | Disposed |
| Oct. 16, 2018 | IRTC | Employee Stock Option (right to buy) | Common Stock | $6.35 | June 15, 2025 | 10,000 | Disposed |
| Oct. 9, 2018 | IRTC | Employee Stock Option (right to buy) | Common Stock | $6.35 | June 15, 2025 | 10,000 | Disposed |
| Sept. 18, 2018 | IRTC | Employee Stock Option (right to buy) | Common Stock | $6.35 | June 15, 2025 | 2,800 | Disposed |
| Aug. 2, 2018 | IRTC | Employee Stock Option (right to buy) | Common Stock | $6.35 | June 15, 2025 | 10,000 | Disposed |
| July 31, 2018 | IRTC | Employee Stock Option (right to buy) | Common Stock | $6.35 | June 15, 2025 | 2,800 | Disposed |
| May 18, 2018 | IRTC | Employee Stock Option (right to buy) | Common Stock | $6.35 | June 15, 2025 | 10,000 | Disposed |
| Feb. 27, 2018 | IRTC | Employee Stock Option (right to buy) | Common Stock | $63.95 | Feb. 27, 2028 | 8,000 | Acquired |
| Feb. 16, 2017 | IRTC | Employee Stock Option (right to buy) | Common Stock | $35.25 | Feb. 16, 2027 | 14,000 | 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.
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 | $83,333 | $200,000 | $2,668,000 | · | · | · | $58 | $2,951,391 |
| 2023 | $357,500 | · | $1,584,240 | $734,565 | · | · | $555 | $2,676,860 |
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2016 | $288,577 | $20,000 | · | · | $130,500 | · | · | $439,077 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.