4Filing Date: Sep 15, 2026
Eos Energy Enterprises, Inc. (EOSE)
Statement of Changes in Beneficial Ownership
View SEC Filing
ACC: 0001628280-26-061975
Total Value$58.7K
Trades2
Insiders1
Transaction Details
Song Haiyan
Director·Direct
Buy · Acquire
Common Stock
Shares+5.00K
Price$3.84
Total Value$19.2K
Shares Owned After15.00K
Transaction DateSep 14, 2026
Song Haiyan
Director·Direct
Buy · Acquire
Common Stock
Shares+10.00K
Price$3.95
Total Value$39.5K
Shares Owned After10.00K
Transaction DateSep 11, 2026
Post-Transaction Holdings
Song Haiyan · Director
| Security | Shares | Change |
|---|---|---|
| Common Stock | 15.00K | +15.00K |
auto_awesomeDeep Analysis
Deep Analysis
Director Haiyan Song bought 15,000 Eos Energy Enterprises shares on the open market for $58,700 across two trades, taking her direct stake from zero to 15,000 shares.
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Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-09-11
10b5-1 Pre-arranged Plan: No
--- Issuer ---
Name: Eos Energy Enterprises, Inc. (EOSE)
CIK: 0001805077
--- Reporting Owner ---
Name: Song Haiyan
CIK: 0001804708
Role: Director
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock
Date: 2026-09-11 | Code: P (Open market purchase)
Shares: +10,000 | Price: $3.95
Total Value: $39,500.00
Shares Owned After: 10,000 | Ownership: D (Direct)
[Transaction #2]
Security: Common Stock
Date: 2026-09-14 | Code: P (Open market purchase)
Shares: +5,000 | Price: $3.84
Total Value: $19,200.00
Shares Owned After: 15,000 | Ownership: D (Direct)
--- Signature ---
/s/ /s/ Sumeet Puri as attorney-in-fact for Haiyan Song (2026-09-15)