*Notional-weighted price return on lawmakers' disclosed buys of ESS, marked to the latest close — per-share (share counts aren't disclosed).
| Date | Member | Type | Amount | Est. price | Latest close | Return |
|---|---|---|---|---|---|---|
| 2026-01-07 | Hon. Rick Larsen | SELL | $1K–$15K | $251.06 | $295.34 2026-06-26 | -19.8% rt |
| 2023-04-18 | Sheldon Whitehouse | SELL | $1K–$15K | $212.10 | $295.34 2026-06-26 | -39.3% exit |
| 2022-07-07 | Hon. Rick Larsen | BUY | $1K–$15K | $266.07 | $295.34 2026-06-26 | +11.0% |
| 2021-07-07 | Hon. Rick Larsen | BUY | $1K–$15K | $312.88 | $295.34 2026-06-26 | -5.6% |
| 2014-08-27 | Sheldon Whitehouse | SELL | $15K–$50K | $192.96 | $295.34 2026-06-26 | -53.1% exit |
Return: buys marked to the latest close (open); sells tagged rt are realized round-trips vs a prior disclosed buy; exit = timing (stock move after the sale, seller's perspective).