Who
Darin G. Billerbeck
Director
Company insider
Files Form 4 as: Executive Chairman, Everspin Technologies; Former President & CEO, Lattice Semiconductor; CEO, Zilog.
In numbers
- Trades disclosed
- 255
- Buys
- 2
- Sells
- 23
- Bought
- $49K
- Sold
- $5.0M
- Companies
- 3
- Companies where not an officer
- 0
- First trade
- 29 Jan 2007
- Last trade
- 21 May 2026
- Last filed
- 22 May 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 | |
|---|---|---|---|---|
| 21 May 2026filed 22 May 2026 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code A | —3,852 at $0.00 | filing |
| 21 May 2026filed 22 May 2026 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code A | —3,852 at $0.00 | filing |
| 11 May 2026filed 13 May 2026 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code M | $256K30,000 at $8.52 | filing |
| 11 May 2026filed 13 May 2026 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Sold | $1.1M30,000 at $37.16 | filing |
| 11 May 2026filed 13 May 2026 | MRAM Everspin Technologiesoption or derivative · Semiconductors | SEC FORM 4 Code M | —30,000 at $0.00 | filing |
| 11 May 2026filed 13 May 2026 | MRAM Everspin Technologiesoption or derivative · Semiconductors | SEC FORM 4 Code M | —30,000 at $0.00 | filing |
| 11 May 2026filed 13 May 2026 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code M | $256K30,000 at $8.52 | filing |
| 11 May 2026filed 13 May 2026 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Sold | $1.1M30,000 at $37.16 | filing |
| 10 Nov 2025filed 12 Nov 2025 | MRAM Everspin Technologiesoption or derivative · Semiconductors | SEC FORM 4 Code M | —12,000 at $0.00 | filing |
| 10 Nov 2025filed 12 Nov 2025 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code M | $86K12,000 at $7.20 | filing |
| 10 Nov 2025filed 12 Nov 2025 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Sold | $113K12,000 at $9.42 | filing |
| 22 May 2025filed 27 May 2025 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code A | —20,325 at $0.00 | filing |
| 23 May 2024filed 26 Jul 2024 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code A | —20,973 at $0.00 | filing |
| 8 Dec 2023filed 11 Dec 2023 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Sold | $87K10,000 at $8.73 | filing |
| 15 Aug 2023filed 20 Sep 2023 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Sold | $96K10,000 at $9.63 | filing |
| 15 Aug 2023filed 16 Aug 2023 | MRAM Everspin Technologiesoption or derivative · Semiconductors | SEC FORM 4 Code M | —10,000 at $0.00 | filing |
| 15 Aug 2023filed 16 Aug 2023 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code M | $85K10,000 at $8.52 | filing |
| 15 Aug 2023filed 16 Aug 2023 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Sold | $96K10,000 at $9.63 | filing |
| 23 May 2023filed 24 May 2023 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Code A | —16,578 at $0.00 | filing |
| 8 Mar 2023filed 9 Mar 2023 | MRAM Everspin TechnologiesSemiconductors | SEC FORM 4 Sold | $67K10,000 at $6.67 | filing |
News
No headline names them, or the companies they trade most, lately.