# Eos Energy Enterprises, Inc. (EOSE) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/eose

> 29 non-derivative transactions: 2 purchases ($59K), 7 sales ($2.7M). CIK 1805077.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-16 | Mastrangelo Joe | Director, Officer | S | 250000.0 | 3.92 | 2308704.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026062270/0001628280-26-062270-index.htm |
| 2026-09-16 | Puri Sumeet | Officer | S | 43750.0 | 3.92 | 280195.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026062273/0001628280-26-062273-index.htm |
| 2026-09-14 | Mastrangelo Joe | Director, Officer | A | 500000.0 | 0.0 | 2558704.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026062270/0001628280-26-062270-index.htm |
| 2026-09-14 | Puri Sumeet | Officer | M | 87500.0 | 0.0 | 323945.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026062273/0001628280-26-062273-index.htm |
| 2026-09-14 | Song Haiyan | Director | P | 5000.0 | 3.84 | 15000.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026061975/0001628280-26-061975-index.htm |
| 2026-09-11 | Song Haiyan | Director | P | 10000.0 | 3.95 | 10000.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026061975/0001628280-26-061975-index.htm |
| 2026-09-09 | Puri Sumeet | Officer | S | 34167.0 | 4.13 | 236445.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026061188/0001628280-26-061188-index.htm |
| 2026-09-05 | Puri Sumeet | Officer | M | 68333.0 | 0.0 | 270612.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026061188/0001628280-26-061188-index.htm |
| 2026-07-28 | Kroeker Nathan | Officer | S | 110417.0 | 3.36 | 887527.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026050227/0001628280-26-050227-index.htm |
| 2026-07-28 | Puri Sumeet | Officer | S | 29167.0 | 3.36 | 202279.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026050230/0001628280-26-050230-index.htm |
| 2026-07-27 | Mastrangelo Joe | Director, Officer | S | 159154.0 | 3.61 | 1947586.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026050226/0001628280-26-050226-index.htm |
| 2026-07-25 | Mastrangelo Joe | Director, Officer | M | 333334.0 | 0.0 | 2106740.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026050226/0001628280-26-050226-index.htm |
| 2026-07-25 | Kroeker Nathan | Officer | M | 220834.0 | 0.0 | 997944.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026050227/0001628280-26-050227-index.htm |
| 2026-07-25 | Puri Sumeet | Officer | M | 58334.0 | 0.0 | 231446.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026050230/0001628280-26-050230-index.htm |
| 2026-07-21 | Kroeker Nathan | Officer | M | 16944.0 | 5.48 | 904471.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053881/0001628280-26-053881-index.htm |
| 2026-07-21 | Demby Claude | Director | M | 1825.0 | 5.48 | 157400.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053885/0001628280-26-053885-index.htm |
| 2026-07-21 | Buczkowski Michelle | Officer | M | 2585.0 | 5.48 | 61827.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053891/0001628280-26-053891-index.htm |
| 2026-07-21 | Nigro Joseph | Director | M | 2773.0 | 5.48 | 41723.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053894/0001628280-26-053894-index.htm |
| 2026-07-21 | Urban David | Director | M | 12185.0 | 5.48 | 97767.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053900/0001628280-26-053900-index.htm |
| 2026-07-21 | Bornstein Jeffrey S | Director | M | 9558.0 | 5.48 | 143806.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053904/0001628280-26-053904-index.htm |
| 2026-07-21 | Walters Marian | Director | M | 11407.0 | 5.48 | 171634.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053907/0001628280-26-053907-index.htm |
| 2026-07-21 | DIMITRIEF ALEXANDER | Director | M | 1377.0 | 5.48 | 11377.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053910/0001628280-26-053910-index.htm |
| 2026-07-21 | DIMITRIEF ALEXANDER | Director | M | 17897.0 | 5.48 | 269296.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053910/0001628280-26-053910-index.htm |
| 2026-07-21 | Mastrangelo Joe | Director, Officer | M | 111118.0 | 5.48 | 2058704.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026053916/0001628280-26-053916-index.htm |
| 2026-07-07 | Kroeker Nathan | Officer | S | 79309.0 | 4.68 | 777110.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026047542/0001628280-26-047542-index.htm |
| 2026-07-06 | Mastrangelo Joe | Director, Officer | F | 121245.0 | 5.06 | 1773406.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026047541/0001628280-26-047541-index.htm |
| 2026-07-05 | Mastrangelo Joe | Director, Officer | M | 254304.0 | 0.0 | 1894651.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026047541/0001628280-26-047541-index.htm |
| 2026-07-05 | Kroeker Nathan | Officer | M | 105008.0 | 0.0 | 856419.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026047542/0001628280-26-047542-index.htm |
| 2026-07-03 | Kroeker Nathan | Officer | M | 53610.0 | 0.0 | 751411.0 | https://www.sec.gov/Archives/edgar/data/1805077/000162828026047542/0001628280-26-047542-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

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