David R Brennan
CIK 1609305 · last filed 2026-05-15
"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
$12.16M
Companies
1
Total Filings
27
Lifetime Open-Market Net
$301.5K
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 | Director | 124,238 | $97.85 | $12.16M | $301.5K | 16 | 2026-05-15 |
Recent Filings · Page 2 of 3
27 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-05-14 | INSM | Grant (A) | +7,558 | $0 | EDGAR |
| 2020-05-18 | — | Grant (A) | +5,896 | $0 | |
| 2020-05-14 | INSM | Grant (A) | +8,097 | $0 | EDGAR |
| 2019-05-17 | — | Grant (A) | +4,634 | $0 | |
| 2019-05-16 | INSM | Grant (A) | +6,899 | $0 | EDGAR |
| 2018-05-17 | INSM | Grant (A) | +6,066 | $0 | EDGAR |
| 2018-05-11 | — | Grant (A) | +2,174 | $0 | |
| 2017-07-26 | — | Disp (D) | −237,440 | $0 | |
| 2017-05-19 | INSM | Grant (A) | +6,702 | $0 | EDGAR |
| 2017-05-12 | — | Grant (A) | +2,030 | $0 |
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.