Martina M.D. Flammer
CIK 1796960 · Chief Medical Officer · last filed 2026-08-07
"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
$10.44M
Companies
1
Total Filings
86
Lifetime Open-Market Net
-$86.69M
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 |
|---|---|---|---|---|---|---|---|
| INSM | Chief Medical Officer | 78,764 | $132.57 | $10.44M | -$86.69M | 47 | 2026-08-07 |
Recent Filings · Page 7 of 9
86 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 |
|---|---|---|---|---|---|
| 2024-05-15 | INSM | Mixed | +3,878 | -$271.0K | EDGAR |
| 2024-05-14 | INSM | Notice (144) | −4,642 | -$118.5K | EDGAR |
| 2024-05-14 | INSM | Notice (144) | −10,240 | -$261.3K | EDGAR |
| 2024-01-12 | INSM | Sell (S) | −4,667 | -$133.6K | EDGAR |
| 2024-01-11 | INSM | Sell (S) | −5,960 | -$172.8K | EDGAR |
| 2024-01-05 | INSM | Notice (144) | −12,013 | -$351.4K | EDGAR |
| 2024-01-05 | INSM | Mixed | +11,487 | -$40.5K | EDGAR |
| 2023-12-22 | INSM | Notice (144) | −28,310 | -$848.4K | EDGAR |
| 2023-12-22 | INSM | Mixed | — | -$179.5K | EDGAR |
| 2023-06-15 | INSM | Sell (S) | −8,868 | -$170.9K | 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.