Transaction · 0001903596-26-000318

Hammer Joseph D

Hammer Joseph D, CEO, reported an open-market or private purchase at Expion Energy, Inc. involving 4500.000000 shares for an estimated $20250000000.00. Reported holdings after the transaction were 4500.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market buySEC transaction code PCEO
XPONExpion Energy, Inc.
Filing timeAug 26
Trade dateAug 21, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

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XPON price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
XPON since 2026-08-26Filed 8 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
Buy
Code P
Identifier
0001903596-26-000318
8% Convertible Debenture Due August 21, 2029
Transaction date
Aug 21, 2026
Filed Aug 26, 2026, 01:12 AM · 5d delay
Shares
4.50k sh
$450M per share
Estimated value
$2025B
Computed from shares × price
Holdings after
4.50k sh
Indirect · See footnote

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
CEO Buy Derivative Transaction Director Buy Large Buy Large Holdings Increase
+26score
Filing-only score

+26

Compact filing score computed from stored Form 4 facts. Version v1.

Strong filing signal

This filing has a high positive filing-only score. It may deserve closer research, but it is not an investment recommendation.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Former Chief Executive Officer

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The Reporting Person served as the Chief Executive Officer of Expion Energy, Inc. (the "Company") through the Transaction Date, and continues to serve as the Chairman of the Board of Directors of the…

  2. F2

    Subject to the Company receiving shareholder approval and filing the Certificate of Designation, the 8% Convertible Debenture Due August 21, 2029 (the "Convertible Debenture") will automatically conve…

  3. F3

    The maturity date of the Convertible Debenture is August 21, 2029.

  4. F4

    The Derivative Securities are held by Five Narrow Lane LP ("FNL"). The Reporting Person may be deemed to beneficially own the Derivative Securities for purposes of Rule 13d-3 under the Securities Exch…

  5. F5

    The Common Stock Purchase Warrant (the "Warrant") is exercisable for an aggregate of up to 1,058,609 shares of Common Stock based on an initial exercise price of $4.25 per share, subject to adjustment…

  6. F6

    The Warrant was immediately exercisable on the date of issuance and expires on the five year anniversary of the date of issuance.

Original filing · 0001903596-26-000318
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