Eos Energy Enterprises, Inc.·4

May 19, 7:25 PM ET

Walters Marian 4

4 · Eos Energy Enterprises, Inc. · Filed May 19, 2026

Research Summary

AI-generated summary of this filing

Updated

Eos Energy (EOSE) Director Marian Walters Exercises Options, Sells Shares

What Happened Marian Walters, a director of Eos Energy Enterprises (EOSE), exercised/converted derivative securities and sold a portion of the resulting shares on May 19, 2026. The filing shows she exercised 7,681 shares at $1.18 per share (cash paid $9,064) and immediately sold those 7,681 shares in the open market for a weighted average price of $7.07, generating proceeds of $54,305. The filing also reports the acquisition (and immediate disposition as derivatives) of 23,111 shares at $0.00.

Key Details

  • Date: May 19, 2026.
  • Exercise paid: 7,681 shares @ $1.18 = $9,064.
  • Open-market sale: 7,681 shares @ weighted avg $7.07 = $54,305 (individual sale prices ranged $7.01–$7.24; seller can provide full breakdown per footnote).
  • Derivative conversions: 23,111 shares reported acquired @ $0.00 and disposed @ $0.00 (also a 7,681-share derivative disposition reported at $0.00).
  • Shares owned after transaction: Not specified in the provided filing.
  • Relevant footnotes: F2 notes each RSU equals one share; F3 indicates some shares are held of record by the D. & M. Walters Family Trust; F5 references stock options granted 5/19/2022 that vested 5/19/2023 (50,000 of those options were previously exercised 12/4/2025). F1 explains sale price is a weighted average across multiple trades.
  • Filing timing: Reported on the same date (May 19, 2026), so appears to be filed timely.

Context

  • The filing shows an exercise/conversion combined with an immediate sale of at least 7,681 shares — a pattern commonly used to cover exercise costs or realize gains.
  • The 23,111-share entries reported at $0 likely reflect non-cash conversions (for example, settled RSUs or similar derivative-to-share conversions); see footnote F2 for RSU treatment.
  • Sales by directors are routine and do not by themselves indicate a change in company outlook; retail investors should consider these moves alongside other company and market information.

Insider Transaction Report

Form 4
Period: 2026-05-19
Transactions
  • Exercise/Conversion

    Common Stock

    2026-05-19$1.18/sh+7,681$9,064143,015 total
  • Sale

    Common Stock

    [F1]
    2026-05-19$7.07/sh7,681$54,305135,334 total
  • Exercise/Conversion

    Common Stock

    [F2]
    2026-05-19+23,111158,445 total
  • Exercise/Conversion

    Restricted Stock Units

    [F2][F4]
    2026-05-1923,1110 total
    Common Stock (23,111 underlying)
  • Exercise/Conversion

    Stock Option (Right to Buy)

    [F5]
    2026-05-197,68187,337 total
    Exercise: $1.18Exp: 2027-05-19Common Stock (7,681 underlying)
Holdings
  • Common Stock

    [F3]
    (indirect: See footnote)
    5,000
Footnotes (5)
  • [F1]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.01 to $7.24, 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.
  • [F2]Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.
  • [F3]Shares of records held by David Walters and Marian Walters as trustees of the D. and M. Walters Family Trust dtd 7/6/2020
  • [F4]Not applicable.
  • [F5]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. 50,000 of these stock options were previously exercised on December 4, 2025.
Signature
/s/ Michael Silberman as attorney-in-fact for Marian Walters|2026-05-19

Documents

1 file
  • 4
    wk-form4_1779233109.xmlPrimary

    FORM 4