Heller Linda C. (CIK 1441617) reported 9 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-01). Recent activity: Sell SLDP (72,310 shares), Sell SLDP (136,122 shares), Sell SLDP (26,659 shares), Buy SLDP (380,348 shares), Sell SLDP (26,605 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | Solid Power, Inc. (SLDP) | CFO, Treasurer, & Secretary | Sell | 72,310 | $188,006 |
| 2026-05-12 | Solid Power, Inc. (SLDP) | CFO, Treasurer, & Secretary | Sell | 136,122 | $418,575 |
| 2026-04-02 | Solid Power, Inc. (SLDP) | CFO, Treasurer, & Secretary | Sell | 26,659 | $75,178 |
| 2026-04-02 | Solid Power, Inc. (SLDP) | CFO, Treasurer, & Secretary | Buy | 380,348 | $0 |
| 2026-01-05 | Solid Power, Inc. (SLDP) | CFO, Treasurer, & Secretary | Sell | 26,605 | $113,869 |
| 2025-10-01 | Solid Power, Inc. (SLDP) | CFO, Treasurer, & Secretary | Sell | 26,605 | $93,650 |
| 2025-07-01 | Solid Power, Inc. (SLDP) | CFO, Treasurer, & Secretary | Sell | 25,950 | $55,792 |
| 2025-06-18 | Solid Power, Inc. (SLDP) | CFO, Treasurer, & Secretary | Sell | 103,800 | $200,334 |
| 2025-05-12 | Solid Power, Inc. (SLDP) | CFO & Treasurer | Buy | 1.1M | $0 |
Source: SEC Form 4 filings · as of 2026-07-01