Who
David R. Brennan
Director
Company insider
Files Form 4 as: Director, Insmed; Director, Alexion Pharmaceuticals; Director, Innocoll Holdings.
In numbers
- Trades disclosed
- 46
- Buys
- 2
- Sells
- 1
- Bought
- $395K
- Sold
- $6.2M
- Companies
- 3
- Companies where not an officer
- 3
- First trade
- 29 May 2014
- Last trade
- 9 Sep 2026
- Last filed
- 11 Sep 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 9 Sep 2026filed 11 Sep 2026 | INSM InsmedBiotechnology | SEC FORM 4 Sold | $3.1M25,000 at $124.00 | filing |
| 9 Sep 2026filed 11 Sep 2026 | INSM InsmedBiotechnology | SEC FORM 4 Sold | $3.1M25,000 at $124.00 | filing |
| 13 May 2026filed 15 May 2026 | INSM InsmedBiotechnology | SEC FORM 4 Code A | —3,305 | filing |
| 13 May 2026filed 15 May 2026 | INSM InsmedBiotechnology | SEC FORM 4 Code A | —3,305 | filing |
| 23 Feb 2026filed 25 Feb 2026 | INSM InsmedBiotechnology | SEC FORM 4 Code G | —6,000 at $0.00 | filing |
| 23 Feb 2026filed 25 Feb 2026 | INSM InsmedBiotechnology | SEC FORM 4 Code G | —6,000 at $0.00 | filing |
| 6 Nov 2025filed 10 Nov 2025 | INSM InsmedBiotechnology | SEC FORM 4 Code G | —60,000 at $0.00 | filing |
| 6 Nov 2025filed 10 Nov 2025 | INSM InsmedBiotechnology | SEC FORM 4 Code G | —60,000 at $0.00 | filing |
| 15 May 2025filed 19 May 2025 | INSM InsmedBiotechnology | SEC FORM 4 Code A | —5,058 | filing |
| 13 May 2024filed 15 May 2024 | INSM InsmedBiotechnology | SEC FORM 4 Code A | —13,162 | filing |
| 11 May 2023filed 15 May 2023 | INSM InsmedBiotechnology | SEC FORM 4 Code A | —13,192 | filing |
| 11 May 2022filed 13 May 2022 | INSM InsmedBiotechnology | SEC FORM 4 Code A | —14,645 | filing |
| 1 Nov 2021filed 3 Nov 2021 | INSM InsmedBiotechnology | SEC FORM 4 Bought | $302K10,000 at $30.15 | filing |
| 21 Jul 2021filed 23 Jul 2021 | Alexion Pharmaceuticals | SEC FORM 4 Code D | —20,873 at $0.00 | filing |
| 21 Jul 2021filed 23 Jul 2021 | Alexion Pharmaceuticalsoption or derivative | SEC FORM 4 Code D | $363K2,343 at $155.01 | filing |
| 21 Jul 2021filed 23 Jul 2021 | Alexion Pharmaceuticalsoption or derivative | SEC FORM 4 Code D | $455K2,706 at $167.97 | filing |
| 21 Jul 2021filed 23 Jul 2021 | Alexion Pharmaceuticalsoption or derivative | SEC FORM 4 Code D | $319K2,294 at $138.86 | filing |
| 20 May 2021filed 24 May 2021 | Alexion Pharmaceuticals | SEC FORM 4 Code A | —1,962 at $0.00 | filing |
| 20 May 2021filed 24 May 2021 | Alexion Pharmaceuticals | SEC FORM 4 Code A | —1,374 at $0.00 | filing |
| 12 May 2021filed 14 May 2021 | INSM InsmedBiotechnology | SEC FORM 4 Code A | —7,558 | filing |
News
No headline names them, or the companies they trade most, lately.