# Eos Energy Enterprises, Inc. (EOSEW)

> Source: Nexqual · https://nexqual.com/EOSEW · data as of 2026-10-15 20:00 UTC · cite as "Nexqual, Eos Energy Enterprises, Inc. (EOSEW), nexqual.com/EOSEW" · informational, not investment advice.

**Price:** USD 1.56 (-1.89% on the day) · last close of Oct 15, 2026; US market closed, not a live price. Prev close 1.59 · day 1.52–1.8 · 52w 1.5–4.5 · market cap null · NCM

## Key facts
- Insider open-market sales, last ~7 months: 14 Form 4 filings, $3.6M; 4 not under a Rule 10b5-1 plan ($1.1M).
- Total return with dividends: 1Y -47.1% vs S&P 500 +18.1%; 5Y -54.9% vs S&P 500 +85.1%.

## Insider sales (SEC Form 4, open-market, last ~7 months)
10 of 14 under a Rule 10b5-1 trading plan (scheduled in advance). Unplanned sales were timed by the insider.
| Trade date | Insider | Role | Shares | Value | % of holdings sold | 10b5-1 plan |
|---|---|---|---|---|---|---|
| 2026-09-16 | Puri Sumeet | Chief Accounting Officer | 43,750 | $172K | 13.5% | Yes (adopted September 15, 2025) |
| 2026-09-16 | Mastrangelo Joe | Chief Executive Officer | 250,000 | $980K | 9.8% | Yes (adopted September 15, 2025) |
| 2026-09-09 | Puri Sumeet | Chief Accounting Officer | 34,167 | $141K | 12.6% | Yes (adopted September 15, 2025) |
| 2026-07-28 | Puri Sumeet | Chief Accounting Officer | 29,167 | $98K | 12.6% | Yes (adopted September 15, 2025) |
| 2026-07-28 | Kroeker Nathan | Chief Commercial Officer | 110,417 | $371K | 11.1% | Yes (adopted September 15, 2025) |
| 2026-07-27 | Mastrangelo Joe | Chief Executive Officer | 159,154 | $575K | 7.6% | No |
| 2026-07-07 | Kroeker Nathan | CCO and Interim CFO | 79,309 | $371K | 9.3% | Yes (adopted September 15, 2025) |
| 2026-06-30 | Puri Sumeet | Chief Accounting Officer | 8,823 | $52K | 4.8% | Yes (adopted September 12, 2025) |
| 2026-06-30 | Buczkowski Michelle | Chief Administration Officer | 11,469 | $67K | 16.2% | Yes (adopted December 11, 2025) |
| 2026-06-30 | Silberman Michael W | Chief Legal Officer | 14,998 | $88K | 4.8% | Yes (adopted September 15, 2025) |
| 2026-06-30 | Kroeker Nathan | CCO and Interim CFO | 35,289 | $207K | 4.8% | Yes (adopted September 15, 2025) |
| 2026-05-28 | Walters Marian | Director | 30,000 | $275K | 15.5% | No |
| 2026-05-20 | Walters Marian | Director | 22,319 | $161K | 12% | No |
| 2026-05-19 | Walters Marian | Director | 7,681 | $54K | 4.5% | No |
% of holdings sold = shares sold ÷ (shares sold + all holdings the insider reported on that Form 4, direct and through trusts).

## Total return (dividends reinvested)
|  | 1Y (from 2026-08-04) | 5Y (from 2026-08-03) |
|---|---|---|
| Total return | -47.1% | -54.9% |
| S&P 500 (SPY) | +18.1% | +85.1% |
| Per year | — | — |
| Volatility (annualized) | 135.8% | 114.9% |
| Max drawdown | -60.9% (Sep 2026→Oct 2026) | -59.0% (Sep 2026→Oct 2026) |

## Peers
ADNWW (Advent Technologies Holdings, I) USD 0 +2800.00% · APXTW (Apex Treasury Corporation Warrants) USD 0.3 -1.33% · TDACW (Trident Acquisitions Corp.) USD 1.18 -9.23% · GFUZW (General Fusion Group Ltd.) USD 1.4 +0.00% · OXBRW (Oxbridge Re Holdings Limited) USD 0.11 +0.00%

## More
Full page: https://nexqual.com/EOSEW · Free keyless MCP server with the same data and citations: https://mcp.nexqual.com/mcp · Guide for agents: https://nexqual.com/agents · https://nexqual.com/llms.txt