InsiderTrades

Form 4 for EOSE Eos Energy Enterprises, Inc.

Accepted 2026-05-22 16:02:06 ET · period of report 2026-05-20 · accession 0001628280-26-037697 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-05-22 16:02 2026-05-20 EOSE Walters Marian Dir M - OptEx $1.18 +22.3K 180.8K +14% +$26.3K
D 2026-05-22 16:02 2026-05-20 EOSE Walters Marian Dir S - Sale+OE $7.20 -22.3K 158.4K -12% -$160.7K
D 2026-05-22 16:02 2026-05-20 EOSE Walters Marian Dir M - OptEx $0.00 -22.3K 65.0K -26% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-20 M A 22,319 $1.18 180,764 D — —
2 Common Common Stock 2026-05-20 S D 22,319 $7.20 158,445 D — — (F1) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.04 to $7.26, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.
3 Derivative Stock Option (Right to Buy) 2026-05-20 M D 22,319 $0.00 65,018 D $1.18 · — to 2027-05-19 22,319 Common Stock (F3) On May 19, 2022 the reporting person was granted stock options to purchase 145,018 shares of common stock which vested on May 19, 2023. 57,681 of these stock options were previously exercised on December 4, 2025 and May 19, 2026.