Buczkowski Michelle
Chief Commercial Officer
Sale
Calculated transaction value
$100K
50,000 shares @ $2
Traded
Oct 29, 2026
Filed
Oct 29, 2026
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Eos Energy Enterprises
EOSE
ManufacturingElectronic Equipment
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
102 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Buczkowski Michelle Chief Commercial Officer | Oct 29, 2026 Same-day filing | Sale Oct 29, 2026 | $100K Filed shares x price | SEC Form 4 View filing | |
| Buczkowski Michelle Chief Commercial Officer | Oct 29, 2026 1-day lag | Exercise Oct 28, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Buczkowski Michelle Chief Commercial Officer | Oct 29, 2026 1-day lag | Exercise Oct 28, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Puri Sumeet Chief Accounting Officer | Sep 16, 2026 Same-day filing | Sale Sep 16, 2026 | $171.5K Filed shares x price | SEC Form 4 View filing | |
| Puri Sumeet Chief Accounting Officer | Sep 16, 2026 2-day lag | Exercise Sep 14, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Puri Sumeet Chief Accounting Officer | Sep 16, 2026 2-day lag | Exercise Sep 14, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mastrangelo Joe Chief Executive Officer | Sep 16, 2026 Same-day filing | Sale Sep 16, 2026 | $980K Filed shares x price | SEC Form 4 View filing | |
| Mastrangelo Joe Chief Executive Officer | Sep 16, 2026 2-day lag | Exercise Sep 14, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mastrangelo Joe Chief Executive Officer | Sep 16, 2026 2-day lag | Award Sep 14, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Song Haiyan Director | Sep 15, 2026 1-day lag | Buy Sep 14, 2026 | $19.2K Filed shares x price | SEC Form 4 View filing | |
| Song Haiyan Director | Sep 15, 2026 4-day lag | Buy Sep 11, 2026 | $39.5K Filed shares x price | SEC Form 4 View filing | |
| Puri Sumeet Chief Accounting Officer | Sep 9, 2026 Same-day filing | Sale Sep 9, 2026 | $141.11K Filed shares x price | SEC Form 4 View filing | |
| Puri Sumeet Chief Accounting Officer | Sep 9, 2026 4-day lag | Exercise Sep 5, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Puri Sumeet Chief Accounting Officer | Sep 9, 2026 4-day lag | Exercise Sep 5, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Puri Sumeet Chief Accounting Officer | Aug 26, 2026 2-day lag | Award Aug 24, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Buczkowski Michelle Chief Commercial Officer | Aug 26, 2026 2-day lag | Award Aug 24, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lagi Alessandro Chief Financial Officer | Aug 26, 2026 2-day lag | Award Aug 24, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mastrangelo Joe Chief Executive Officer | Aug 26, 2026 2-day lag | Award Aug 24, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Cerberus Gp Manager Llc Director / Ten Percent Owner | Aug 6, 2026 2-day lag | Award Aug 4, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Mastrangelo Joe Chief Executive Officer | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $608.93K Filed shares x price | SEC Form 4 View filing | |
| Mastrangelo Joe Chief Executive Officer | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mastrangelo Joe Chief Executive Officer | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Dimitrief Alexander Director | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Dimitrief Alexander Director | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Dimitrief Alexander Director | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $98.08K Filed shares x price | SEC Form 4 View filing | |
| Dimitrief Alexander Director | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Dimitrief Alexander Director | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Dimitrief Alexander Director | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $7.55K Filed shares x price | SEC Form 4 View filing | |
| Walters Marian Director | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Walters Marian Director | Aug 6, 2026 16-day lag | Exercise Jul 21, 2026 | $62.51K Filed shares x price | SEC Form 4 View filing |
Buczkowski Michelle
Chief Commercial Officer
Exercise
Calculated transaction value
$0
100,000 shares @ $0
Traded
Oct 28, 2026
Filed
Oct 29, 2026
Buczkowski Michelle
Chief Commercial Officer
Exercise
Calculated transaction value
$0
100,000 shares @ $0
Traded
Oct 28, 2026
Filed
Oct 29, 2026
Puri Sumeet
Chief Accounting Officer
Sale
Calculated transaction value
$171.5K
43,750 shares @ $3.92
Traded
Sep 16, 2026
Filed
Sep 16, 2026
Puri Sumeet
Chief Accounting Officer
Exercise
Calculated transaction value
$0
87,500 shares @ $0
Traded
Sep 14, 2026
Filed
Sep 16, 2026
Puri Sumeet
Chief Accounting Officer
Exercise
Calculated transaction value
$0
87,500 shares @ $0
Traded
Sep 14, 2026
Filed
Sep 16, 2026
Mastrangelo Joe
Chief Executive Officer
Sale
Calculated transaction value
$980K
250,000 shares @ $3.92
Traded
Sep 16, 2026
Filed
Sep 16, 2026
Mastrangelo Joe
Chief Executive Officer
Exercise
Calculated transaction value
$0
500,000 shares @ $0
Traded
Sep 14, 2026
Filed
Sep 16, 2026
Mastrangelo Joe
Chief Executive Officer
Award
Calculated transaction value
$0
500,000 shares @ $0
Traded
Sep 14, 2026
Filed
Sep 16, 2026
Song Haiyan
Director
Buy
Calculated transaction value
$19.2K
5,000 shares @ $3.84
Traded
Sep 14, 2026
Filed
Sep 15, 2026
Song Haiyan
Director
Buy
Calculated transaction value
$39.5K
10,000 shares @ $3.95
Traded
Sep 11, 2026
Filed
Sep 15, 2026
Puri Sumeet
Chief Accounting Officer
Sale
Calculated transaction value
$141.11K
34,167 shares @ $4.13
Traded
Sep 9, 2026
Filed
Sep 9, 2026
Puri Sumeet
Chief Accounting Officer
Exercise
Calculated transaction value
$0
68,333 shares @ $0
Traded
Sep 5, 2026
Filed
Sep 9, 2026
Puri Sumeet
Chief Accounting Officer
Exercise
Calculated transaction value
$0
68,333 shares @ $0
Traded
Sep 5, 2026
Filed
Sep 9, 2026
Puri Sumeet
Chief Accounting Officer
Award
Calculated transaction value
$0
65,044 shares @ $0
Traded
Aug 24, 2026
Filed
Aug 26, 2026
Buczkowski Michelle
Chief Commercial Officer
Award
Calculated transaction value
$0
195,130 shares @ $0
Traded
Aug 24, 2026
Filed
Aug 26, 2026
Lagi Alessandro
Chief Financial Officer
Award
Calculated transaction value
$0
195,130 shares @ $0
Traded
Aug 24, 2026
Filed
Aug 26, 2026
Mastrangelo Joe
Chief Executive Officer
Award
Calculated transaction value
$0
611,406 shares @ $0
Traded
Aug 24, 2026
Filed
Aug 26, 2026
Cerberus Gp Manager Llc
Director / Ten Percent Owner
Award
Reported value range
Not reported
20,017,772 shares
Traded
Aug 4, 2026
Filed
Aug 6, 2026
Mastrangelo Joe
Chief Executive Officer
Exercise
Calculated transaction value
$608.93K
111,118 shares @ $5.48
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Mastrangelo Joe
Chief Executive Officer
Exercise
Calculated transaction value
$0
48,758 shares @ $0
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Mastrangelo Joe
Chief Executive Officer
Exercise
Calculated transaction value
$0
111,118 shares @ $0
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Dimitrief Alexander
Director
Exercise
Calculated transaction value
$0
603 shares @ $0
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Dimitrief Alexander
Director
Exercise
Calculated transaction value
$0
17,897 shares @ $0
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Dimitrief Alexander
Director
Exercise
Calculated transaction value
$98.08K
17,897 shares @ $5.48
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Dimitrief Alexander
Director
Exercise
Calculated transaction value
$0
7,853 shares @ $0
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Dimitrief Alexander
Director
Exercise
Calculated transaction value
$0
1,377 shares @ $0
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Dimitrief Alexander
Director
Exercise
Calculated transaction value
$7.55K
1,377 shares @ $5.48
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Walters Marian
Director
Exercise
Calculated transaction value
$0
11,407 shares @ $0
Traded
Jul 21, 2026
Filed
Aug 6, 2026
Walters Marian
Director
Exercise
Calculated transaction value
$62.51K
11,407 shares @ $5.48
Traded
Jul 21, 2026
Filed
Aug 6, 2026