SEC CIK 1388177
Billerbeck Darin G
Reported ownership across 2 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| LSCCview stock → | 633,823 | 2018-05-31 |
| MRAMview stock → | 127,925 | 2026-05-21 |
Position History — MRAM
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — MRAM
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-05-21 | Grant / award | 3,852 | $0.00 | 127,925 |
| 2026-05-11 | Option exercise (derivative) | 30,000 | $0.00 | 0 |
| 2026-05-11 | Open-market sale | 30,000 | $37.16 | 124,073 |
| 2026-05-11 | Option exercise | 30,000 | $8.52 | 154,073 |
| 2025-11-10 | Option exercise (derivative) | 12,000 | $0.00 | 0 |
| 2025-11-10 | Open-market sale | 12,000 | $9.42 | 124,073 |
| 2025-11-10 | Option exercise | 12,000 | $7.20 | 136,073 |
| 2025-05-22 | Grant / award | 20,325 | $0.00 | 124,073 |
| 2024-05-23 | Grant / award | 20,973 | $0.00 | 103,748 |
| 2023-12-08 | Open-market sale | 10,000 | $8.73 | 82,775 |
| 2023-08-15 | Option exercise (derivative) | 10,000 | $0.00 | 20,000 |
| 2023-08-15 | Option exercise | 10,000 | $8.52 | 112,775 |
| 2023-08-15 | Open-market sale | 10,000 | $9.63 | 102,775 |
| 2023-08-15 | Open-market sale | 10,000 | $9.63 | 92,775 |
| 2023-05-23 | Grant / award | 16,578 | $0.00 | 102,775 |
| 2023-03-08 | Open-market sale | 10,000 | $6.67 | 86,197 |
| 2023-01-03 | Open-market sale | 1,281 | $5.51 | 96,197 |
| 2022-12-02 | Open-market sale | 3,637 | $6.31 | 97,478 |
| 2022-11-02 | Open-market sale | 3,527 | $6.16 | 101,115 |
| 2022-10-01 | Open-market sale | 3,375 | $6.18 | 104,642 |
| 2022-09-01 | Open-market sale | 3,524 | $6.89 | 108,017 |
| 2022-08-02 | Open-market sale | 3,566 | $5.91 | 111,541 |
| 2022-07-05 | Open-market sale | 3,595 | $4.93 | 115,107 |
| 2022-06-01 | Open-market sale | 3,513 | $6.13 | 118,702 |
| 2022-05-10 | Grant / award | 25,802 | $0.00 | 122,215 |
| 2022-03-14 | Grant / award | 62,000 | $0.00 | 96,413 |
| 2022-03-14 | Grant / award | 62,000 | $0.00 | 96,413 |
| 2021-12-17 | Open-market sale | 19,497 | $10.45 | 34,413 |
| 2021-12-02 | Open-market sale | 1,547 | $11.43 | 53,910 |
| 2021-11-19 | Open-market sale | 38,740 | $12.16 | 55,457 |
| 2021-09-02 | Open-market sale | 1,540 | $6.91 | 94,197 |
| 2021-06-02 | Open-market sale | 1,524 | $6.21 | 95,737 |
| 2021-05-20 | Open-market sale | 3,457 | $5.23 | 97,261 |
| 2021-03-01 | Open-market sale | 2,641 | $6.01 | 106,968 |
| 2021-03-01 | Grant / award | 6,250 | $0.00 | 109,609 |
| 2021-01-21 | Grant / award | 75,000 | $0.00 | 103,359 |
| 2020-05-19 | Grant / award | 21,359 | $0.00 | 28,359 |
| 2019-05-21 | Grant / award (derivative) | 12,000 | $0.00 | 12,000 |
| 2019-05-21 | Grant / award | 7,000 | $0.00 | 7,000 |
| 2018-08-20 | Grant / award (derivative) | 30,000 | $0.00 | 30,000 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.