SLDP · Insider Trading
Solid Power, Inc. Class A Common Stock
Every open-market purchase and sale reported by SLDP officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-01 | John C. Van Scoter | President & CEO | F | −154,512 | −$350.74K |
| 2026-10-01 | Joshua Buettner-Garrett | Chief Technology Officer | F | −33,824 | −$76.78K |
| 2026-10-01 | Linda C. Heller | CFO, Treasurer, & Secretary | F | −72,310 | −$164.14K |
| 2026-07-01 | Linda C. Heller | CFO, Treasurer, & Secretary | F | −72,310 | −$188.01K |
| 2026-07-01 | Joshua Buettner-Garrett | Chief Technology Officer | F | −33,824 | −$87.94K |
| 2026-07-01 | John C. Van Scoter | President & CEO | F | −154,512 | −$401.73K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| John C. Van Scoter | President & CEO | 4,563,127 | $9.08M |
| Linda C. Heller | CFO, Treasurer, & Secretary | 1,876,534 | $3.73M |
| Joshua Buettner-Garrett | Chief Technology Officer | 1,332,194 | $2.65M |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the SLDP quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.