Song Haiyan
SEC insider (Form 3/4/5 filer). CIK 0001804708. Director at Eos Energy Enterprises, Inc. (EOSE) and 1 other issuer. 5 reported Form 4/5 transactions since Sep 2024; latest on Sep 14, 2026. Located in PITTSBURGH, PA.
Companies Song Haiyan has filed insider reports for
- Eos Energy Enterprises, Inc. (EOSE): Director
- CSG SYSTEMS INTERNATIONAL INC (CSGS): Director
Song Haiyan
CIK: 0001804708
Transaction Breakdown
Open Market Buys (P)2 (40.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)2 (40.0%)
Compensation grants
Other (G, F, J, C, D, …)1 (20.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (5 total)
- Sep 14, 2026EOSE
Eos Energy Enterprises, Inc.
PurchaseDirect5K shares at avg. $3.84$19K - Sep 11, 2026EOSE
Eos Energy Enterprises, Inc.
PurchaseDirect10K shares at avg. $3.95$40K - Jul 13, 2026EOSE
Eos Energy Enterprises, Inc.
AwardDirectRestricted Stock Units
30K shares- - May 14, 2026CSGS
CSG SYSTEMS INTERNATIONAL INC
DispositionDirect22.6K shares at avg. $80.70$1.8M - Jun 10, 2025CSGS
CSG SYSTEMS INTERNATIONAL INC
AwardDirect3.1K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 14, 2026 |  EOSE Eos Energy Enterprises, Inc. | Purchase | 5,000 | $3.84 | $19,200 | Direct |
| Sep 11, 2026 | EOSE Eos Energy Enterprises, Inc. | Purchase | 10,000 | $3.95 | $39,500 | Direct |
| Jul 13, 2026 | EOSE Eos Energy Enterprises, Inc. | Award Restricted Stock Units | 29,980 | - | - | Direct |
| May 14, 2026 |  CSGS CSG SYSTEMS INTERNATIONAL INC | Disposition | 22,560 | $80.70 | $1,820,592 | Direct |
| Jun 10, 2025 | CSGS CSG SYSTEMS INTERNATIONAL INC | Award | 3,085 | - | - | Direct |
1-5 of 5 transactions