Eos Energy Enterprises, Inc. (EOSE) insider trading.
In Q3 2026, insiders at Eos Energy Enterprises, Inc. reported 29 non-derivative transactions on 31 Forms 3, 4 and 5: 2 open-market purchases worth $59K and 7 sales worth $2.7M.
- Transactions
- 29
- Purchases (P)
- 2
- Sales (S)
- 7
- Net shares, P minus S
- -690,964
- Insiders
- 11
- Last filed
- 2026-09-16
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Mastrangelo Joe | Director, Officer · Chief Executive Officer | 7 | 0 | 2 |
| Puri Sumeet | Officer · Chief Accounting Officer | 6 | 0 | 3 |
| Kroeker Nathan | Officer · Chief Commercial Officer | 6 | 0 | 2 |
| Song Haiyan | Director | 2 | 2 | 0 |
| Dimitrief Alexander | Director | 2 | 0 | 0 |
| Demby Claude | Director | 1 | 0 | 0 |
| Buczkowski Michelle | Officer · Chief Administration Officer | 1 | 0 | 0 |
| Nigro Joseph | Director | 1 | 0 | 0 |
| Urban David | Director | 1 | 0 | 0 |
| Bornstein Jeffrey S | Director | 1 | 0 | 0 |
| Walters Marian | Director | 1 | 0 | 0 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-16 | Mastrangelo Joe | S (D) | 250,000 | $3.92 | 2,308,704 | Form 4 |
| 2026-09-16 | Puri Sumeet | S (D) | 43,750 | $3.92 | 280,195 | Form 4 |
| 2026-09-14 | Mastrangelo Joe | A (A) | 500,000 | $0 | 2,558,704 | Form 4 |
| 2026-09-14 | Puri Sumeet | M (A) | 87,500 | $0 | 323,945 | Form 4 |
| 2026-09-14 | Song Haiyan | P (A) | 5,000 | $3.84 | 15,000 | Form 4 |
| 2026-09-11 | Song Haiyan | P (A) | 10,000 | $3.95 | 10,000 | Form 4 |
| 2026-09-09 | Puri Sumeet | S (D) | 34,167 | $4.13 | 236,445 | Form 4 |
| 2026-09-05 | Puri Sumeet | M (A) | 68,333 | $0 | 270,612 | Form 4 |
| 2026-07-28 | Kroeker Nathan | S (D) | 110,417 | $3.36 | 887,527 | Form 4 |
| 2026-07-28 | Puri Sumeet | S (D) | 29,167 | $3.36 | 202,279 | Form 4 |
| 2026-07-27 | Mastrangelo Joe | S (D) | 159,154 | $3.61 | 1,947,586 | Form 4 |
| 2026-07-25 | Mastrangelo Joe | M (A) | 333,334 | $0 | 2,106,740 | Form 4 |
| 2026-07-25 | Kroeker Nathan | M (A) | 220,834 | $0 | 997,944 | Form 4 |
| 2026-07-25 | Puri Sumeet | M (A) | 58,334 | $0 | 231,446 | Form 4 |
| 2026-07-21 | Kroeker Nathan | M (A) | 16,944 | $5.48 | 904,471 | Form 4 |
| 2026-07-21 | Demby Claude | M (A) | 1,825 | $5.48 | 157,400 | Form 4 |
| 2026-07-21 | Buczkowski Michelle | M (A) | 2,585 | $5.48 | 61,827 | Form 4 |
| 2026-07-21 | Nigro Joseph | M (A) | 2,773 | $5.48 | 41,723 | Form 4 |
| 2026-07-21 | Urban David | M (A) | 12,185 | $5.48 | 97,767 | Form 4 |
| 2026-07-21 | Bornstein Jeffrey S | M (A) | 9,558 | $5.48 | 143,806 | Form 4 |
| 2026-07-21 | Walters Marian | M (A) | 11,407 | $5.48 | 171,634 | Form 4 |
| 2026-07-21 | Dimitrief Alexander | M (A) | 1,377 | $5.48 | 11,377 | Form 4 |
| 2026-07-21 | Dimitrief Alexander | M (A) | 17,897 | $5.48 | 269,296 | Form 4 |
| 2026-07-21 | Mastrangelo Joe | M (A) | 111,118 | $5.48 | 2,058,704 | Form 4 |
| 2026-07-07 | Kroeker Nathan | S (D) | 79,309 | $4.68 | 777,110 | Form 4 |
| 2026-07-06 | Mastrangelo Joe | F (D) | 121,245 | $5.06 | 1,773,406 | Form 4 |
| 2026-07-05 | Mastrangelo Joe | M (A) | 254,304 | $0 | 1,894,651 | Form 4 |
| 2026-07-05 | Kroeker Nathan | M (A) | 105,008 | $0 | 856,419 | Form 4 |
| 2026-07-03 | Kroeker Nathan | M (A) | 53,610 | $0 | 751,411 | Form 4 |
Transaction codes in this quarter
Get EOSE insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=1805077&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · EOSE company page · Eos Energy Enterprises, Inc. on SEC.gov
Questions
Are insiders buying or selling Eos Energy Enterprises, Inc. (EOSE)?
In Q3 2026, insiders at Eos Energy Enterprises, Inc. reported 29 non-derivative transactions on 31 Forms 3, 4 and 5: 2 open-market purchases worth $59K and 7 sales worth $2.7M. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Eos Energy Enterprises, Inc. insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/eose.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.