Erik J Anderson sold $156k of SLDP
director at Solid Power, Inc.. 30,000 shares at an average of $5.20, traded Dec 4, 2025, filed Dec 8, 2025.
Score components
- +15RoleDirector
- +11Trade size$156k at market
- +5Share of holdings soldSold 16% of holdings
- 0ClusterNo other insider selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -5.1%, 3m -39.7%, 6m -44.4%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001225208-25-009787, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Dec 4, 2025 | SOpen-market sale Common Stockindirect: By WestRiver Management, LLC | -30,000 | $5.20 | $156k | 157,617 | Dec 8, 2025 |
Related signals
Other insiders at Solid Power, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 10Weak | Solid Power, Inc. | Lesa B Roe director | $104k 39,207 shares | -14% | |
| 35Weak | Solid Power, Inc. | Lesa B Roe director | $49k 29,000 shares | -11% | |
| 44Moderate | Solid Power, Inc. | Steven H Goldberg director | $133k 82,365 shares | -41% | |
| 0Weak | Solid Power, Inc. | Joshua Buettner-Garrett Chief Technology Officer | $212k 187,500 shares | -18% | |
| 0Weak | Solid Power, Inc. | Joshua Buettner-Garrett Chief Technology Officer | $246k 187,500 shares | -18% | |
| 1Weak | Solid Power, Inc. | Joshua Buettner-Garrett Chief Technology Officer | $392k 187,500 shares | -18% | |
| 0Weak | Solid Power, Inc. | Joshua Buettner-Garrett Chief Technology Officer | $201k 187,500 shares | -18% | |
| 63Notable | Solid Power, Inc. | Erik J Anderson director | $644k 506,283 shares | -73% | |
| 0Weak | Solid Power, Inc. | Joshua Buettner-Garrett Chief Technology Officer | $201k 187,500 shares | -18% | |
| 6Weak | Solid Power, Inc. | Joshua Buettner-Garrett Chief Technology Officer | $237k 187,500 shares | -18% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.