David Aaron Lehman
Insider
First SEC filing: June 3, 2026 · Latest: June 3, 2026
Insider at
Insider transactions
0 buys (P)
16 sells (S)
Net: $-88,505
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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 1, 2026 | LUNG | S | 3,807 | $2.26 | $8,604 | 372,354 Direct | -1.01% | Disposed | -16.8% (price as of 2026-10-05) |
| Sept. 1, 2026 | LUNG | S | 2,224 | $2.26 | $5,026 | 370,130 Direct | -0.60% | Disposed | -16.8% (price as of 2026-10-05) |
| Sept. 1, 2026 | LUNG | S | 3,476 | $2.26 | $7,856 | 366,654 Direct | -0.94% | Disposed | -16.8% (price as of 2026-10-05) |
| Sept. 1, 2026 | LUNG | S | 4,827 | $2.26 | $10,909 | 361,827 Direct | -1.32% | Disposed | -16.8% (price as of 2026-10-05) |
| June 1, 2026 | LUNG | S | 4,915 | $1.54 | $7,569 | 376,161 Direct | -1.29% | Disposed | 22.1% (price as of 2026-10-05) |
| June 1, 2026 | LUNG | S | 3,539 | $1.54 | $5,450 | 381,076 Direct | -0.92% | Disposed | 22.1% (price as of 2026-10-05) |
| June 1, 2026 | LUNG | S | 2,264 | $1.54 | $3,487 | 384,615 Direct | -0.59% | Disposed | 22.1% (price as of 2026-10-05) |
| June 1, 2026 | LUNG | S | 3,876 | $1.54 | $5,969 | 386,879 Direct | -0.99% | Disposed | 22.1% (price as of 2026-10-05) |
| March 2, 2026 | LUNG | S | 1,163 | $1.43 | $1,663 | 251,829 Direct | -0.46% | Disposed | 31.5% (price as of 2026-10-05) |
| March 2, 2026 | LUNG | S | 4,433 | $1.43 | $6,339 | 247,396 Direct | -1.76% | Disposed | 31.5% (price as of 2026-10-05) |
| March 2, 2026 | LUNG | S | 2,590 | $1.43 | $3,704 | 244,806 Direct | -1.05% | Disposed | 31.5% (price as of 2026-10-05) |
| March 2, 2026 | LUNG | S | 4,051 | $1.43 | $5,793 | 240,755 Direct | -1.65% | Disposed | 31.5% (price as of 2026-10-05) |
| March 2, 2026 | LUNG | A | 150,000 | · | · | 390,755 Direct | +62.30% | Acquired | (price as of 2026-10-05) |
| Dec. 1, 2025 | LUNG | S | 976 | $1.57 | $1,532 | 262,294 Direct | -0.37% | Disposed | 19.7% (price as of 2026-10-05) |
| Dec. 1, 2025 | LUNG | S | 3,725 | $1.57 | $5,848 | 258,569 Direct | -1.42% | Disposed | 19.7% (price as of 2026-10-05) |
| Dec. 1, 2025 | LUNG | S | 2,176 | $1.57 | $3,416 | 256,393 Direct | -0.84% | Disposed | 19.7% (price as of 2026-10-05) |
| Dec. 1, 2025 | LUNG | S | 3,401 | $1.57 | $5,340 | 252,992 Direct | -1.33% | Disposed | 19.7% (price as of 2026-10-05) |
| Sept. 2, 2025 | LUNG | S | 929 | $1.60 | $1,486 | 272,110 Direct | -0.34% | Disposed | 17.5% (price as of 2026-10-05) |
| Sept. 2, 2025 | LUNG | S | 3,541 | $1.60 | $5,666 | 268,569 Direct | -1.30% | Disposed | 17.5% (price as of 2026-10-05) |
| Sept. 2, 2025 | LUNG | S | 2,068 | $1.60 | $3,309 | 266,501 Direct | -0.77% | Disposed | 17.5% (price as of 2026-10-05) |
| Sept. 2, 2025 | LUNG | S | 3,231 | $1.60 | $5,170 | 263,270 Direct | -1.21% | Disposed | 17.5% (price as of 2026-10-05) |
| June 2, 2025 | LUNG | S | 535 | $3.14 | $1,680 | 282,961 Direct | -0.19% | Disposed | -40.1% (price as of 2026-10-05) |
| June 2, 2025 | LUNG | S | 943 | $3.13 | $2,952 | 282,018 Direct | -0.33% | Disposed | -39.9% (price as of 2026-10-05) |
| June 2, 2025 | LUNG | S | 3,597 | $3.13 | $11,259 | 278,421 Direct | -1.28% | Disposed | -39.9% (price as of 2026-10-05) |
| June 2, 2025 | LUNG | S | 2,099 | $3.13 | $6,570 | 276,322 Direct | -0.75% | Disposed | -39.9% (price as of 2026-10-05) |
| June 2, 2025 | LUNG | S | 3,283 | $3.13 | $10,276 | 273,039 Direct | -1.19% | Disposed | -39.9% (price as of 2026-10-05) |
| March 3, 2025 | LUNG | S | 669 | $7.14 | $4,777 | 197,182 Direct | -0.34% | Disposed | -73.7% (price as of 2026-10-05) |
| March 3, 2025 | LUNG | S | 1,177 | $7.14 | $8,404 | 196,005 Direct | -0.60% | Disposed | -73.7% (price as of 2026-10-05) |
| March 3, 2025 | LUNG | S | 4,490 | $7.14 | $32,059 | 191,515 Direct | -2.29% | Disposed | -73.7% (price as of 2026-10-05) |
| March 3, 2025 | LUNG | S | 2,397 | $7.14 | $17,115 | 189,118 Direct | -1.25% | Disposed | -73.7% (price as of 2026-10-05) |
| March 3, 2025 | LUNG | S 10b5-1 | 13,622 | $7.97 | $108,567 | 175,496 Direct | -7.20% | Disposed | -76.4% (price as of 2026-10-05) |
| March 3, 2025 | LUNG | A | 108,000 | · | · | 283,496 Direct | +61.54% | Acquired | (price as of 2026-10-05) |
| Dec. 2, 2024 | LUNG | S | 410 | $6.18 | $2,534 | 202,938 Direct | -0.20% | Disposed | -69.6% (price as of 2026-10-05) |
| Dec. 2, 2024 | LUNG | S | 722 | $6.19 | $4,469 | 202,216 Direct | -0.36% | Disposed | -69.6% (price as of 2026-10-05) |
| Dec. 2, 2024 | LUNG | S | 2,755 | $6.19 | $17,053 | 199,461 Direct | -1.36% | Disposed | -69.6% (price as of 2026-10-05) |
| Dec. 2, 2024 | LUNG | S | 1,610 | $6.18 | $9,950 | 197,851 Direct | -0.81% | Disposed | -69.6% (price as of 2026-10-05) |
| Sept. 3, 2024 | LUNG | S | 429 | $6.71 | $2,879 | 208,684 Direct | -0.21% | Disposed | -72.0% (price as of 2026-10-05) |
| Sept. 3, 2024 | LUNG | S | 758 | $6.69 | $5,071 | 207,926 Direct | -0.36% | Disposed | -71.9% (price as of 2026-10-05) |
| Sept. 3, 2024 | LUNG | S | 2,890 | $6.69 | $19,334 | 205,036 Direct | -1.39% | Disposed | -71.9% (price as of 2026-10-05) |
| Sept. 3, 2024 | LUNG | S | 1,688 | $6.69 | $11,293 | 203,348 Direct | -0.82% | Disposed | -71.9% (price as of 2026-10-05) |
| June 3, 2024 | LUNG | S | 409 | $6.97 | $2,851 | 214,179 Direct | -0.19% | Disposed | -73.0% (price as of 2026-10-05) |
| June 3, 2024 | LUNG | S | 719 | $6.97 | $5,011 | 213,460 Direct | -0.34% | Disposed | -73.0% (price as of 2026-10-05) |
| June 3, 2024 | LUNG | S | 2,744 | $6.97 | $19,126 | 210,716 Direct | -1.29% | Disposed | -73.0% (price as of 2026-10-05) |
| June 3, 2024 | LUNG | S | 1,603 | $6.97 | $11,173 | 209,113 Direct | -0.76% | Disposed | -73.0% (price as of 2026-10-05) |
| March 1, 2024 | LUNG | A | 69,100 | · | · | 214,588 Direct | +47.50% | Acquired | (price as of 2026-10-05) |
| March 1, 2024 | LUNG | A | 34,500 | · | · | 34,500 Direct | · | Acquired | (price as of 2026-10-05) |
| March 1, 2024 | LUNG | S | 459 | $9.06 | $4,159 | 149,380 Direct | -0.31% | Disposed | -79.2% (price as of 2026-10-05) |
| March 1, 2024 | LUNG | S | 809 | $9.06 | $7,330 | 148,571 Direct | -0.54% | Disposed | -79.2% (price as of 2026-10-05) |
| March 1, 2024 | LUNG | S | 3,083 | $9.06 | $27,932 | 145,488 Direct | -2.08% | Disposed | -79.2% (price as of 2026-10-05) |
| March 1, 2024 | LUNG | A | 34,500 | · | · | 179,988 Direct | +23.71% | Acquired | (price as of 2026-10-05) |
| March 1, 2024 | LUNG | A | 69,100 | · | · | 69,100 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 1, 2023 | LUNG | S | 2,700 | $10.34 | $27,918 | 149,839 Direct | -1.77% | Disposed | -81.8% (price as of 2026-10-05) |
| Dec. 1, 2023 | LUNG | S | 707 | $10.34 | $7,310 | 152,539 Direct | -0.46% | Disposed | -81.8% (price as of 2026-10-05) |
| Dec. 1, 2023 | LUNG | S | 402 | $10.33 | $4,153 | 153,246 Direct | -0.26% | Disposed | -81.8% (price as of 2026-10-05) |
| Sept. 1, 2023 | LUNG | S | 2,673 | $10.01 | $26,757 | 153,648 Direct | -1.71% | Disposed | -81.2% (price as of 2026-10-05) |
| Sept. 1, 2023 | LUNG | S | 701 | $10.01 | $7,017 | 156,321 Direct | -0.45% | Disposed | -81.2% (price as of 2026-10-05) |
| Sept. 1, 2023 | LUNG | S | 398 | $10.01 | $3,984 | 157,022 Direct | -0.25% | Disposed | -81.2% (price as of 2026-10-05) |
| June 1, 2023 | LUNG | S | 2,676 | $11.48 | $30,720 | 157,420 Direct | -1.67% | Disposed | -83.6% (price as of 2026-10-05) |
| June 1, 2023 | LUNG | S | 701 | $11.48 | $8,047 | 160,096 Direct | -0.44% | Disposed | -83.6% (price as of 2026-10-05) |
| June 1, 2023 | LUNG | S | 399 | $11.48 | $4,581 | 160,797 Direct | -0.25% | Disposed | -83.6% (price as of 2026-10-05) |
| March 1, 2023 | LUNG | A | 81,000 | · | · | 81,000 Direct | · | Acquired | (price as of 2026-10-05) |
| March 1, 2023 | LUNG | A | 118,300 | · | · | 161,196 Direct | +275.78% | Acquired | (price as of 2026-10-05) |
| March 1, 2023 | LUNG | S | 806 | $11.03 | $8,890 | 42,896 Direct | -1.84% | Disposed | -83.0% (price as of 2026-10-05) |
| March 1, 2023 | LUNG | S | 458 | $11.03 | $5,052 | 43,702 Direct | -1.04% | Disposed | -83.0% (price as of 2026-10-05) |
| Dec. 1, 2022 | LUNG | S | 387 | $5.93 | $2,295 | 44,842 Direct | -0.86% | Disposed | -68.3% (price as of 2026-10-05) |
| Dec. 1, 2022 | LUNG | S | 682 | $5.93 | $4,044 | 44,160 Direct | -1.52% | Disposed | -68.3% (price as of 2026-10-05) |
| Sept. 1, 2022 | LUNG | S | 690 | $17.88 | $12,337 | 45,229 Direct | -1.50% | Disposed | -89.5% (price as of 2026-10-05) |
| Sept. 1, 2022 | LUNG | S | 392 | $17.89 | $7,013 | 45,919 Direct | -0.85% | Disposed | -89.5% (price as of 2026-10-05) |
| June 1, 2022 | LUNG | S | 679 | $18.05 | $12,256 | 46,311 Direct | -1.44% | Disposed | -89.6% (price as of 2026-10-05) |
| June 1, 2022 | LUNG | S | 386 | $18.05 | $6,967 | 46,990 Direct | -0.81% | Disposed | -89.6% (price as of 2026-10-05) |
| March 1, 2022 | LUNG | S | 458 | $25.91 | $11,867 | 16,376 Direct | -2.72% | Disposed | -92.7% (price as of 2026-10-05) |
| March 1, 2022 | LUNG | A | 31,000 | · | · | 47,376 Direct | +189.30% | Acquired | (price as of 2026-10-05) |
| March 1, 2022 | LUNG | A | 68,700 | · | · | 68,700 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 1, 2021 | LUNG | S | 383 | $32.73 | $12,536 | 16,834 Direct | -2.22% | Disposed | -94.3% (price as of 2026-10-05) |
| Sept. 1, 2021 | LUNG | S | 383 | $40.09 | $15,354 | 17,217 Direct | -2.18% | Disposed | -95.3% (price as of 2026-10-05) |
| June 1, 2021 | LUNG | A | 17,600 | · | · | 17,600 Direct | · | Acquired | (price as of 2026-10-05) |
| June 1, 2021 | LUNG | A | 39,900 | · | · | 39,900 Direct | · | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| March 1, 2024 | LUNG | Employee Stock Option (right to buy) | Common Stock | $9.30 | Feb. 28, 2034 | 34,500 | Acquired |
| March 1, 2024 | LUNG | Employee Stock Option (right to buy) | Common Stock | $9.30 | Feb. 28, 2034 | 69,100 | Acquired |
| March 1, 2023 | LUNG | Employee Stock Option (right to buy) | Common Stock | $11.48 | Feb. 28, 2033 | 81,000 | Acquired |
| 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 |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 7, 2020 | LUNG | Employee Stock Option (right to buy) | 125,000 | 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 | $472,400 | · | $1,193,760 | · | $43,791 | · | $452 | $1,710,404 |
| 2024 | $458,600 | · | $642,630 | $213,776 | $169,430 | · | $696 | $1,485,132 |
| 2023 | $443,000 | · | $1,358,084 | $629,627 | $207,723 | · | $666 | $2,639,100 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.