Lehman David Aaron
Officer · LUNG
As of 2026-09-16, Lehman David Aaron has 32 Form 4 transactions on record across 1 company — 17 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in September in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $706K
- Indirect $0
| LUNG | direct | 361,827 sh | $706K |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-01 | LUNG | Sale | 4,827 @ $2.26 | $11K | −1.3% of holding | 361,827 | Form 4 |
| 2026-09-01 | LUNG | Sale | 3,807 @ $2.26 | $9K | −1.0% of holding | 372,354 | Form 4 |
| 2026-09-01 | LUNG | Sale | 3,476 @ $2.26 | $8K | −0.9% of holding | 366,654 | Form 4 |
| 2026-09-01 | LUNG | Sale | 2,224 @ $2.26 | $5K | −0.6% of holding | 370,130 | Form 4 |
| 2026-06-01 | LUNG | Sale | 4,915 @ $1.54 | $8K | −1.3% of holding | 376,161 | Form 4 |
| 2026-06-01 | LUNG | Sale | 3,876 @ $1.54 | $6K | −1.0% of holding | 386,879 | Form 4 |
| 2026-06-01 | LUNG | Sale | 3,539 @ $1.54 | $5K | −0.9% of holding | 381,076 | Form 4 |
| 2026-06-01 | LUNG | Sale | 2,264 @ $1.54 | $3K | −0.6% of holding | 384,615 | Form 4 |
| 2026-03-02 | LUNG | Sale | 4,433 @ $1.43 | $6K | −1.8% of holding | 247,396 | Form 4 |
| 2026-03-02 | LUNG | Sale | 4,051 @ $1.43 | $6K | −1.7% of holding | 240,755 | Form 4 |
| 2026-03-02 | LUNG | Sale | 2,590 @ $1.43 | $4K | −1.0% of holding | 244,806 | Form 4 |
| 2026-03-02 | LUNG | Sale | 1,163 @ $1.43 | $2K | −0.5% of holding | 251,829 | Form 4 |
| 2025-12-01 | LUNG | Sale | 3,725 @ $1.57 | $6K | −1.4% of holding | 258,569 | Form 4 |
| 2025-12-01 | LUNG | Sale | 3,401 @ $1.57 | $5K | −1.3% of holding | 252,992 | Form 4 |
| 2025-12-01 | LUNG | Sale | 2,176 @ $1.57 | $3K | −0.8% of holding | 256,393 | Form 4 |
| 2025-12-01 | LUNG | Sale | 976 @ $1.57 | $2K | −0.4% of holding | 262,294 | Form 4 |
| 2025-09-02 | LUNG | Sale | 3,541 @ $1.60 | $6K | −1.3% of holding | 268,569 | Form 4 |
| 2025-09-02 | LUNG | Sale | 3,231 @ $1.60 | $5K | −1.2% of holding | 263,270 | Form 4 |
| 2025-09-02 | LUNG | Sale | 2,068 @ $1.60 | $3K | −0.8% of holding | 266,501 | Form 4 |
| 2025-09-02 | LUNG | Sale | 929 @ $1.60 | $1K | −0.3% of holding | 272,110 | Form 4 |
| 2025-06-02 | LUNG | Sale | 3,597 @ $3.13 | $11K | −1.3% of holding | 278,421 | Form 4 |
| 2025-06-02 | LUNG | Sale | 3,283 @ $3.13 | $10K | −1.2% of holding | 273,039 | Form 4 |
| 2025-06-02 | LUNG | Sale | 2,099 @ $3.13 | $7K | −0.8% of holding | 276,322 | Form 4 |
| 2025-06-02 | LUNG | Sale | 943 @ $3.13 | $3K | −0.3% of holding | 282,018 | Form 4 |
| 2025-06-02 | LUNG | Sale | 535 @ $3.14 | $2K | −0.2% of holding | 282,961 | Form 4 |
| 2025-03-03 | LUNG | Sale | 13,622 @ $7.97 | $109K | −7.2% of holding | 175,496 | Form 4 |
| 2025-03-03 | LUNG | Sale | 4,490 @ $7.14 | $32K | −2.3% of holding | 191,515 | Form 4 |
| 2025-03-03 | LUNG | Sale | 2,397 @ $7.14 | $17K | −1.3% of holding | 189,118 | Form 4 |
| 2025-03-03 | LUNG | Sale | 1,177 @ $7.14 | $8K | −0.6% of holding | 196,005 | Form 4 |
| 2025-03-03 | LUNG | Sale | 669 @ $7.14 | $5K | −0.3% of holding | 197,182 | Form 4 |
2 award / exercise / gift records — not counted as purchases
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.