David Aaron Lehman
CIK 1354228 · GENERAL COUNSEL · last filed 2026-06-03
David Aaron Lehman is a GENERAL COUNSEL who has filed 74 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing shows the insider sold $22.5K of LUNG on Jun 3, 2026. Across all open-market trades the lifetime net is −$8.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $476.3K across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$476.3K
3
74
-$7.95M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| LUNG | GENERAL COUNSEL | 381,076 | $1.25 | $476.3K | -$644.7K | 22 | 2026-06-03 |
| Intersect ENT, Inc. (XENT) Delisted | EVP & General Counsel | 79,205 | $28.24 | $2.24M | -$1.77M | 12 | 2020-02-05 |
| THORATEC CORP (THOR) Delisted | SVP and General Counsel | 71,655 | — | — | -$5.53M | 39 | 2015-10-08 |
Recent Filings
74 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-03 | LUNG | Sell (S) | −14,594 | -$22.5K | EDGAR |
| 2026-03-04 | LUNG | Mixed | +137,763 | -$17.5K | EDGAR |
| 2025-12-03 | LUNG | Sell (S) | −10,278 | -$16.1K | EDGAR |
| 2025-09-03 | LUNG | Sell (S) | −9,769 | -$15.6K | EDGAR |
| 2025-06-04 | LUNG | Sell (S) | −10,457 | -$32.7K | EDGAR |
| 2025-03-05 | LUNG | Mixed | +85,645 | -$170.9K | EDGAR |
| 2025-03-03 | LUNG | Notice (144) | −13,622 | -$108.6K | EDGAR |
| 2024-12-04 | LUNG | Sell (S) | −5,497 | -$34.0K | EDGAR |
| 2024-09-05 | LUNG | Sell (S) | −5,765 | -$38.6K | EDGAR |
| 2024-06-05 | LUNG | Sell (S) | −5,475 | -$38.2K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.