David Aaron Lehman
CIK 1354228 · GENERAL COUNSEL · last filed 2026-06-03
"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.
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Disclosed Exposure
$476.3K
Companies
3
Total Filings
74
Lifetime Open-Market Net
-$7.95M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 8
74 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-03-07 | LUNG | Grant (A) | +69,100 | $0 | EDGAR |
| 2024-03-05 | LUNG | Mixed | +30,149 | -$39.4K | EDGAR |
| 2023-12-05 | LUNG | Sell (S) | −3,809 | -$39.4K | EDGAR |
| 2023-09-06 | LUNG | Sell (S) | −3,772 | -$37.8K | EDGAR |
| 2023-06-02 | LUNG | Sell (S) | −3,776 | -$43.3K | EDGAR |
| 2023-03-03 | LUNG | Mixed | +117,036 | -$13.9K | EDGAR |
| 2022-12-05 | LUNG | Sell (S) | −1,069 | -$6.3K | EDGAR |
| 2022-09-06 | LUNG | Sell (S) | −1,082 | -$19.4K | EDGAR |
| 2022-06-03 | LUNG | Sell (S) | −1,065 | -$19.2K | EDGAR |
| 2022-03-03 | LUNG | Mixed | +30,542 | -$11.9K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
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.
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.