David Aaron Lehman

CIK 1354228 · View on SEC EDGAR ↗

Insider

First SEC filing: June 3, 2026 · Latest: June 3, 2026

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Insider at

Insider transactions

0 buys (P) 12 sells (S) Net: $-56,110 + 7 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

7 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
June 1, 2026 LUNG S 4,915 $1.54 $7,569 376,161 Direct -1.29% Disposed 51.3% (price as of 2026-08-20)
June 1, 2026 LUNG S 3,539 $1.54 $5,450 381,076 Direct -0.92% Disposed 51.3% (price as of 2026-08-20)
June 1, 2026 LUNG S 2,264 $1.54 $3,487 384,615 Direct -0.59% Disposed 51.3% (price as of 2026-08-20)
June 1, 2026 LUNG S 3,876 $1.54 $5,969 386,879 Direct -0.99% Disposed 51.3% (price as of 2026-08-20)
March 2, 2026 LUNG S 1,163 $1.43 $1,663 251,829 Direct -0.46% Disposed 62.9% (price as of 2026-08-20)
March 2, 2026 LUNG S 4,433 $1.43 $6,339 247,396 Direct -1.76% Disposed 62.9% (price as of 2026-08-20)
March 2, 2026 LUNG S 2,590 $1.43 $3,704 244,806 Direct -1.05% Disposed 62.9% (price as of 2026-08-20)
March 2, 2026 LUNG S 4,051 $1.43 $5,793 240,755 Direct -1.65% Disposed 62.9% (price as of 2026-08-20)
Dec. 1, 2025 LUNG S 976 $1.57 $1,532 262,294 Direct -0.37% Disposed 48.4% (price as of 2026-08-20)
Dec. 1, 2025 LUNG S 3,725 $1.57 $5,848 258,569 Direct -1.42% Disposed 48.4% (price as of 2026-08-20)
Dec. 1, 2025 LUNG S 2,176 $1.57 $3,416 256,393 Direct -0.84% Disposed 48.4% (price as of 2026-08-20)
Dec. 1, 2025 LUNG S 3,401 $1.57 $5,340 252,992 Direct -1.33% Disposed 48.4% (price as of 2026-08-20)
Dec. 1, 2023 LUNG S 2,700 $10.34 $27,918 149,839 Direct -1.77% Disposed -77.5% (price as of 2026-08-20)
Dec. 1, 2023 LUNG S 707 $10.34 $7,310 152,539 Direct -0.46% Disposed -77.5% (price as of 2026-08-20)
Dec. 1, 2023 LUNG S 402 $10.33 $4,153 153,246 Direct -0.26% Disposed -77.4% (price as of 2026-08-20)
Sept. 1, 2023 LUNG S 2,673 $10.01 $26,757 153,648 Direct -1.71% Disposed -76.7% (price as of 2026-08-20)
Sept. 1, 2023 LUNG S 701 $10.01 $7,017 156,321 Direct -0.45% Disposed -76.7% (price as of 2026-08-20)
Sept. 1, 2023 LUNG S 398 $10.01 $3,984 157,022 Direct -0.25% Disposed -76.7% (price as of 2026-08-20)
June 1, 2023 LUNG S 2,676 $11.48 $30,720 157,420 Direct -1.67% Disposed -79.7% (price as of 2026-08-20)
June 1, 2023 LUNG S 701 $11.48 $8,047 160,096 Direct -0.44% Disposed -79.7% (price as of 2026-08-20)
June 1, 2023 LUNG S 399 $11.48 $4,581 160,797 Direct -0.25% Disposed -79.7% (price as of 2026-08-20)
March 1, 2023 LUNG S 806 $11.03 $8,890 42,896 Direct -1.84% Disposed -78.9% (price as of 2026-08-20)
March 1, 2023 LUNG S 458 $11.03 $5,052 43,702 Direct -1.04% Disposed -78.9% (price as of 2026-08-20)
Dec. 1, 2022 LUNG S 387 $5.93 $2,295 44,842 Direct -0.86% Disposed -60.7% (price as of 2026-08-20)
Dec. 1, 2022 LUNG S 682 $5.93 $4,044 44,160 Direct -1.52% Disposed -60.7% (price as of 2026-08-20)
Sept. 1, 2022 LUNG S 690 $17.88 $12,337 45,229 Direct -1.50% Disposed -87.0% (price as of 2026-08-20)
Sept. 1, 2022 LUNG S 392 $17.89 $7,013 45,919 Direct -0.85% Disposed -87.0% (price as of 2026-08-20)
June 1, 2022 LUNG S 679 $18.05 $12,256 46,311 Direct -1.44% Disposed -87.1% (price as of 2026-08-20)
June 1, 2022 LUNG S 386 $18.05 $6,967 46,990 Direct -0.81% Disposed -87.1% (price as of 2026-08-20)
March 1, 2022 LUNG S 458 $25.91 $11,867 16,376 Direct -2.72% Disposed -91.0% (price as of 2026-08-20)
Dec. 1, 2021 LUNG S 383 $32.73 $12,536 16,834 Direct -2.22% Disposed -92.9% (price as of 2026-08-20)
Sept. 1, 2021 LUNG S 383 $40.09 $15,354 17,217 Direct -2.18% Disposed -94.2% (price as of 2026-08-20)

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, 2023 LUNG Employee Stock Option (right to buy) Common Stock (81,000) $11.48 Feb. 28, 2033 81,000 Acquired
March 1, 2022 LUNG Employee Stock Option (right to buy) Common Stock (68,700) $26.56 Feb. 29, 2032 68,700 Acquired
June 1, 2021 LUNG Employee Stock Option (right to buy) Common Stock (39,900) $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)→ Common Stock (125,000) 125,000 Direct

Compensation (DEF 14A)

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

LUNG

General Counsel
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.