Who
Douglas A. Roeder
Director
Company insider
Files Form 4 as: Director and 10% owner, Senseonics Holdings; Director and 10% owner, Tandem Diabetes Care; Director and 10% owner, TriVascular Technologies.
In numbers
- Trades disclosed
- 121
- Buys
- 11
- Sells
- 16
- Bought
- $16.6M
- Sold
- $55.4M
- Companies
- 3
- Companies where not an officer
- 3
- First trade
- 1 Nov 2013
- Last trade
- 1 Oct 2026
- Last filed
- 5 Oct 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 | |
|---|---|---|---|---|
| 1 Oct 2026filed 5 Oct 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K1,480 at $9.96 | filing |
| 19 Aug 2026filed 20 Aug 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Bought | $125K13,953.284 at $8.98 | filing |
| 19 Aug 2026filed 20 Aug 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Bought | $125K13,953.28 at $8.98 | filing |
| 1 Jul 2026filed 2 Jul 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K2,751 at $5.36 | filing |
| 1 Jul 2026filed 2 Jul 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K2,751 at $5.36 | filing |
| 20 May 2026filed 21 May 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | —9,852 at $0.00 | filing |
| 20 May 2026filed 21 May 2026 | SENS Senseonics Holdingsoption or derivative · Life-science tools | SEC FORM 4 Code A | —13,574 at $0.00 | filing |
| 20 May 2026filed 21 May 2026 | SENS Senseonics Holdingsoption or derivative · Life-science tools | SEC FORM 4 Code A | —13,574 at $0.00 | filing |
| 20 May 2026filed 21 May 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | —9,852 at $0.00 | filing |
| 12 May 2026filed 13 May 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Bought | $126K22,686 at $5.56 | filing |
| 12 May 2026filed 13 May 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Bought | $126K22,686 at $5.56 | filing |
| 1 Apr 2026filed 2 Apr 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K2,218 at $6.65 | filing |
| 1 Apr 2026filed 2 Apr 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K2,218 at $6.65 | filing |
| 13 Mar 2026filed 16 Mar 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Bought | $100K17,500 at $5.73 | filing |
| 13 Mar 2026filed 16 Mar 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Bought | $100K17,500 at $5.73 | filing |
| 2 Jan 2026filed 5 Jan 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K2,504 at $5.89 | filing |
| 2 Jan 2026filed 5 Jan 2026 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K2,504 at $5.89 | filing |
| 7 Nov 2025filed 10 Nov 2025 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Bought | $87K15,000 at $5.83 | filing |
| 1 Oct 2025filed 3 Oct 2025 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K35,714 at $0.41 | filing |
| 1 Jul 2025filed 3 Jul 2025 | SENS Senseonics HoldingsLife-science tools | SEC FORM 4 Code A | $15K30,987 at $0.48 | filing |
News
No headline names them, or the companies they trade most, lately.